ANN: SIP v4.4 Released
Riverbank Computing is pleased to announce the release of SIP v4.4 available from http://www.riverbankcomputing.co.uk/sip/. SIP is a tool for generating Python modules that wrap C or C++ libraries. It is similar to SWIG. It is used to generate PyQt and PyKDE. Full documentation is available at http://www.riverbankcomputing.com/Docs/sip4/sipref.html. SIP is licensed under the Python License and runs on Windows, UNIX, Linux and MacOS/X. SIP requires Python v2.3 or later (SIP v3.x is available to support earlier versions of Python). This release includes the following changes: - support for class and mapped type templates - support for global operators - support for signed char, long long and unsigned long long types - support for Python's buffer interface - support for ellipsis in function arguments - support for __hash__ - namespaces can now be split across Python modules. Other features of SIP include: - extension modules are implemented as a single binary .pyd or .so file (no Python stubs) - support for Python new-style classes - generated modules are quick to import, even for large libraries - support for Qt's signal/slot mechanism - thread support - the ability to re-implement C++ abstract and virtual methods in Python - the ability to define Python classes that derive from abstract C++ classes - the ability to spread a class hierarchy across multiple Python modules - support for C++ namespaces - support for C++ exceptions - support for C++ operators - an extensible build system written in Python that supports over 50 platform/compiler combinations. Phil -- http://mail.python.org/mailman/listinfo/python-announce-list Support the Python Software Foundation: http://www.python.org/psf/donations.html
ANN: eric3 3.8.2 release
Hi, this is to let all of you know about the release of eric3 3.8.2. This version fixes a compatibility bug with the latest PyQt release (PyQt 3.16). Eric3 is a Python and Ruby IDE with batteries included. It is written using PyQt and is available via http://www.die-offenbachs.de/detlev/eric3.html Regards, Detlev -- Detlev Offenbach [EMAIL PROTECTED] -- http://mail.python.org/mailman/listinfo/python-announce-list Support the Python Software Foundation: http://www.python.org/psf/donations.html
Re: a problem to solve
John Salerno wrote:
[EMAIL PROTECTED] wrote:
If you need help in figuring out how to walk through all 4096 possible
switch sets, just ask.
Ok, thanks to your list, I figured out a program that works! It's
probably not the best, and it doesn't really display which switches are
correct in any apparent way (you have to look for them in the list), but
it works! Here's the code. I'd love to see your implementation too.
from gmpy import digits
panelOne = [0xf5fdc,0xf6edb,0xbddb7,0x6fddd,0xeb7ed,0xb977f,0xbfed3,0xedef5]
panelTwo = [0xddb7d,0xfaddb,0xde75f,0xeef7a,0xdd77b,0xdfbce,0xb77dd,0x7ef5d]
panelThree =
[0xf37bd,0xdfaee,0xddd6f,0xddfb6,0xb9efb,0xb7bbe,0xecfbd,0xb75df]
panelFour =
[0x77edb,0xbb7ee,0xdf773,0x7bdeb,0x7ddaf,0xdeeeb,0xfb35f,0xbb7dd]
for a in panelOne:
for b in panelTwo:
for c in panelThree:
for d in panelFour:
if (a b (c ^ d)) | (c d (a ^ b)) ==
1048575:
print 'Solution is:', digits(a, 16),
digits(b, 16), digits(c, 16),
digits(d, 16)
raw_input()
Well, I don't get the prize for most elegant.
But that's partly because I included the ooloop6
function. That's real handy to have in your puzzle
solving toolbox. It can generate all the subsets of
the cartesian product of a string of characters:
Permutations withReplacement
Combinations withReplacement
Permutations without Replacement
Combinations without Replacement
It will dynamically create as many nested for loops
as you need (up to the Python limit of 20, but keep
in mind that there are 19928148895209409152340197376
possible 20 letter words). Of course, we only need
Permutations with Replacement for THIS problem,
which can be done more elegantly the way you did it.
import gmpy
# and gmpy can do much more than base conversion
# lots of functions of interest to the bit-banger
# example below
def ooloop6(a, n, perm=True, repl=True):
if (not repl) and (nlen(a)): return
r0 = range(n)
r1 = r0[1:]
if perm and repl: # ok
v = ','.join(['c%s' % i for i in r0])
f = ' '.join(['for c%s in a' % i for i in r0])
e = ''.join([p = [''.join((,v,)) ,f,]])
exec e
return p
if (not perm) and repl:# ok
v = ','.join(['c%s' % i for i in r0])
f = ' '.join(['for c%s in a' % i for i in r0])
i = ' and '.join(['(c%s=c%s)' % (j,j-1) for j in r1])
e = ''.join([p = [''.join((,v,)) ,f, if ,i,]])
exec e
return p
if perm and (not repl):# ok
v = ','.join(['c%s' % i for i in r0])
f = ' '.join(['for c%s in a' % i for i in r0])
i = ' and '.join([' and '.join(['(c%s!=c%s)' % (j,k) for k in
range(j)]) for j in r1])
e = ''.join([p = [''.join((,v,)) ,f, if ,i,]])
exec e
return p
if (not perm) and (not repl): # ok
v = ','.join(['c%s' % i for i in r0])
f = ' '.join(['for c%s in a' % i for i in r0])
i = ' and '.join(['(c%sc%s)' % (j,j-1) for j in r1])
e = ''.join([p = [''.join((,v,)) ,f, if ,i,]])
exec e
return p
a = [0xf5fdc,0xf6edb,0xbddb7,0x6fddd,0xeb7ed,0xb977f,0xbfed3,0xedef5]
b = [0xddb7d,0xfaddb,0xde75f,0xeef7a,0xdd77b,0xdfbce,0xb77dd,0x7ef5d]
c = [0xf37bd,0xdfaee,0xddd6f,0xddfb6,0xb9efb,0xb7bbe,0xecfbd,0xb75df]
d = [0x77edb,0xbb7ee,0xdf773,0x7bdeb,0x7ddaf,0xdeeeb,0xfb35f,0xbb7dd]
p = ooloop6('01234567',4)
# p is a list of all 4096 possible switch patterns
# ['','0001','0002',...'7775','7776','']
for q in p:
h = int(q[0]) # have to convert the characters to
i = int(q[1]) # ints so that they can be used as
j = int(q[2]) # indexes into the panel lists
k = int(q[3])
y = ((c[j] d[k]) (a[h] ^ b[i])) | ((a[h] b[i]) (c[j] ^
d[k]))
z = gmpy.digits(y,2) # y converted to base 2
r = gmpy.popcount(y) # a real neat gmpy bit function!
# popcount is the number of 1 bits
# in the number
# in case there is no solution, I want to see how close
# I come, so I print all solutions that have over 15
# 1-bits
if r15:
print '%2d %s%s' % (r,'0'*(20-len(z)),z),h,i,j,k
# it's not wrong to iterate through the list directly,
# but by using an index instead of saying for a in Panel1,
# I can then print the index when I find a solution.
# so I can simply say the switches are 7 2 5 3
# note the expression '0'*(20-len(z))
# the base 2 conversion stops at the most significant 1-bit
# this pads it out to 20 characters if necessary
##program output
##
##16 00110110 2 3 1 7
##16 110110110011 3 4 5 5
##16 1101110111010111 5 5 6 0
##16 1101101110111011 6 3 0 4
##16 01100011 7 1 5 2
##20
how to format a return value by using re.sub(regx,rep1,str)?
for example:
re.sub('a( [^]+)+\s?[^^]*/a','',' asd gaa target=_blank
href=http://www.sine.com; class=wordstyle asdgasdghae rha/a')
I wish to get the return value asd ga asdgasdghae rha,how do do?
I have a impression on % and {number},but forgot how to use them.
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ANN: PyQt v3.16 Released
Riverbank Computing is pleased to announce the release of PyQt v3.16 available from http://www.riverbankcomputing.co.uk/pyqt/. The main benefit of this release is that it can be installed side by side with the soon-to-be-released PyQt v4 (for Qt v4). Other changes since the last release include: - improved interoperability between QString and Python's string and unicode objects. PyQt is a comprehensive set of Qt bindings for the Python programming language and supports the same platforms as Qt. Like Qt, PyQt is available under the GPL (for UNIX, Linux and MacOS/X), a commercial license (for Windows, UNIX, Linux and MacOS/X) and a free educational license (for Windows). PyQt is implemented as a set of 9 extension modules containing 300 classes and over 5,750 functions and methods. PyQt also includes bindings to QScintilla, the port to Qt of the Scintilla editor component. PyQt can be used either as a rapid prototyping tool, or as an alternative to C++ for developing large Qt applications. PyQt includes the pyuic utility which generates Python code to implement user interfaces created with Qt Designer in the same way that the uic utility generates C++ code. Third party tools are also available - such as eric3, a comprehensive IDE (including an editor, debugger, class browser, integration with Qt Designer, re-factoring tools, unit testing tools and integration with source code control systems). eric3 is written entirely using PyQt and is available from http://www.die-offenbachs.de/detlev/eric3.html. Phil -- http://mail.python.org/mailman/listinfo/python-list
Comparisons and singletons
PEP 8 says, Comparisons to singletons like None should always be done with 'is' or 'is not', never the equality operators. I know that is is an identity operator, == and != are the equality operators, but I'm not sure what other singletons are being referred to here. Also, I've seen code that does things like: if foo is 3: if foo is not '': Are these valid uses of is? Thanks in advance. -- Steven. -- http://mail.python.org/mailman/listinfo/python-list
Building Python extensions from sources on Windows
Hello, I have another, probably stupid, question. I'm working on some Python project, and I use some extensions written in C. I do all the development on my GNU/Linux box, so my setup.py script works just as it's supposed to work on a GNU/Linux system. But in the nearest future I'll have to make an executable program for Windows. I know, that there are some useful tools to make executables from Python programs for Windows (Py2Exe, PyInstaller - that's what I have heard about), but, as far as I understand the subject, I'll need the extensions modules (dll files? on my GNU/Linux system I always get some so files - shared libraries) in the compiled form in order to make any executable program. In the Python standard documentation I have read, that: (...) Since the metadata is taken from the setup script, creating Windows installers is usually as easy as running: python setup.py bdist_wininst (...) If you have a non-pure distribution, the extensions can only be created on a Windows platform, and will be Python version dependent. (...) And that's the problem: I understand the fact, that in order to build a non-pure distrubution, all the C sources have to be compiled (to dll libraries?). But there's the problem: I don't know which one compiler should I use. Do I have to use the same compiler, that the Python has been compiled with? If so, which one of the Windows compilers has been used to compile Python? Or perhaps could I use an another compiler? Which one, then? I have no idea what to do. I haven't done anything on Windows for so long... -- http://mail.python.org/mailman/listinfo/python-list
Re: Comparisons and singletons
Steven Watanabe wrote: PEP 8 says, Comparisons to singletons like None should always be done with 'is' or 'is not', never the equality operators. I know that is is an identity operator, == and != are the equality operators, but I'm not sure what other singletons are being referred to here. Other builtin singeltons are NotImplemented and Ellipsis, see: http://docs.python.org/ref/types.html for details. Also, I've seen code that does things like: if foo is 3: if foo is not '': Are these valid uses of is? No. Try this examples: a = 'spam' b = ''.join(list(a)) b 'spam' a == b True a is b False a = 1 b = 1 a == b True a is b False Thanks in advance. -- Steven. Hope this helps. Ziga -- http://mail.python.org/mailman/listinfo/python-list
ANN: eric3 3.8.2 release
Hi, this is to let all of you know about the release of eric3 3.8.2. This version fixes a compatibility bug with the latest PyQt release (PyQt 3.16). Eric3 is a Python and Ruby IDE with batteries included. It is written using PyQt and is available via http://www.die-offenbachs.de/detlev/eric3.html Regards, Detlev -- Detlev Offenbach [EMAIL PROTECTED] -- http://mail.python.org/mailman/listinfo/python-list
Re: Multiplying sequences with floats
Caleb Hattingh wrote: 4.0//2 doesn't return an integer, but the equality against an integer still holds. I agree that integer division should return an integer, because using the operator at all means you expect one. There are actually two conflicting expectations here: You're right, the semantics of a floor operation let you expect an int, but on the other hand, the result type of all other binary operations is the common type into which the operands are casted before the operation, and the result type of math.floor() is always float, even for an int operand. The thing that I thought is a bit awkward is that a//b * some_list will not work if a or b is a float, even if it represents an integer and even though the result of a//b always represents an integer. Now there are two ways to resolve this: a) a//b always returns an int (or long) b) n * some_list works if n is a float representing an integer I was actually considering solution b), not a). By the way, solution a) has another drawback: What would you return if a=1e200 and b=1, or a=1 and b=1e-200? Of course, a floor division would be pretty silly with such numbers, but returning a long number with 200 digits of which most are wrong anyway somehow does not look like the right thing to do. -- Christoph -- http://mail.python.org/mailman/listinfo/python-list
************************************LOOK AT THIS*************************************
I am trying to gain sponsorship for a charity The Stroke Association for which i am doing the London Marathon in April this year. I would be greatful if all those persons who see this message would visit my webpage at www.justgiving.com/lezmarathon. All donations are welcome no matter how small. If anyone can think of any other groups that this message could be posted to, please contact me at my email address [EMAIL PROTECTED] Please Give Generously many thanks LezHewitt -- http://mail.python.org/mailman/listinfo/python-list
Re: Programming challenge: wildcard exclusion in cartesian products
Dinko Tenev [EMAIL PROTECTED] wrote: Dirk Thierbach wrote: [A lot of stuff] Now clearer? Let's leave it there, and take a break. Maybe it would help to just take a concrete example, and work through it. Then you'll see exactly what happens. - Dirk -- http://mail.python.org/mailman/listinfo/python-list
OT: unix newbie questions
Hello all Some basic unix questions which pure laziness prevents me from googling for. Anyone feeling charitable? I'm using FreeBSD 6.0: * To create an empty __init__.py file I do 'vim __init__.py' then immediately exit vim, is there a shell or vim command which will create an empty file without opening the editor? * If I want to do : mv mypackage-1.0.2.tar.gz subdir/mypackage-1.0.2.tar.gz then tab-completion gives me the first occurrence of the file, but I have to type the second occurrence - is there a way of not having to type it? * cd ~ brings me to my home directory, is there a means by which I can set up a similar alias for, say, /usr/local/www, so I can do: eg. cd ^ to get to that directory? * I'm using the tcsh shell and have no problems with it, but bash seems more popular - any reason to change? (I don't intend writing many shell scripts) * Any other unix/vim tips for a 'nix newb?! Thanks in advance Gerard -- http://mail.python.org/mailman/listinfo/python-list
Re: Incremental Compression
Adam DePrince wrote:
On Sat, 2006-03-25 at 03:08 +0200, Eyal Lotem wrote:
Hey.
I have a problem in some network code. I want to send my packets
compressed, but I don't want to compress each packet separately (via
.encode('zlib') or such) but rather I'd like to compress it with regard
to the history of the
compression stream. If I use zlib.compressobj and flush it to get the
packet data, I cannot continue to compress with that stream.
Yes, you can.
Help on built-in function flush:
flush(...)
flush( [mode] ) -- Return a string containing any remaining
compressed data.
mode can be one of the constants Z_SYNC_FLUSH, Z_FULL_FLUSH,
Z_FINISH; the
default value used when mode is not specified is Z_FINISH.
If mode == Z_FINISH, the compressor object can no longer be used
after
calling the flush() method. Otherwise, more data can still be
compressed.
you want to call
mycompressor.flush( zlib.Z_SYNC_FLUSH )
The difference between the flushes is this:
1. Z_SYNC_FLUSH. This basically send enough data so that the receiver
will get everything you put in. This does decerase your compression
ratio (however, in weird case when I last played with it, it helped.)
2. Z_FULL_FLUSH. This sends enough data so that the receiver will get
everything you put in. This also wipes the compressors statistics, so
the when you pick up where you left of, the compressor will compress
about as well as if you had just started, you are wiping its memory of
what it saw in the past.
3. Z_FINISH. This is the default action, this is what is killing you.
Good luck - Adam DePrince
Thanks! That really helps.
I cannot wait until the end of the stream and then flush, because I need
to flush after every packet.
Another capability I require is to be able to copy the compression
stream. i.e: To be able to create multiple continuations of the same
compression stream. Something like:
a = compressobj()
pre_x = a.copy()
x = a.compress('my_packet1')
# send x
# x was not acked yet, so we must send another packet via the pre_x
compressor
y = pre_x.compress('my_packet2')
Is there a compression object that can do all this?
Ahh, you are trying to pretune the compressor before sending a little
bit ... I think C-zlib does this, but I don't know for sure.
Yeah, but I don't need a powerful tuning, just a means to copy the
compressor's state. I guess I'll need to write some C for this.
Thanks again!
- Adam DePrince
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Re: OT: unix newbie questions
Gerard Flanagan: * To create an empty __init__.py file I do 'vim __init__.py' then immediately exit vim, is there a shell or vim command which will create an empty file without opening the editor? touch __init__.py * cd ~ brings me to my home directory, is there a means by which I can set up a similar alias for, say, /usr/local/www, so I can do: eg. cd ^ to get to that directory? You could create an alias in your shell. -- René Pijlman Wat wil jij leren? http://www.leren.nl -- http://mail.python.org/mailman/listinfo/python-list
Re: how to format a return value by using re.sub(regx,rep1,str)?
dongdong wrote:
for example:
re.sub('a( [^]+)+\s?[^^]*/a','',' asd gaa target=_blank
href=http://www.sine.com; class=wordstyle asdgasdghae rha/a')
I wish to get the return value asd ga asdgasdghae rha,how do do?
I have a impression on % and {number},but forgot how to use them.
Use a group to capture the text between a and /a:
In [10]: re.sub('a( [^]+)+\s?([^^]*)/a',r'\2',' asd gaa
target=_blank href=http://www.sine.com; class=wordstyle
asdgasdghae rha/a')
Out[10]: ' asd ga asdgasdghae rha'
Kent
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Re: OT: unix newbie questions
* If I want to do : mv mypackage-1.0.2.tar.gz subdir/mypackage-1.0.2.tar.gz then tab-completion gives me the first occurrence of the file, but I have to type the second occurrence - is there a way of not having to type it? No need to give it the name the second time. # touch foo # mkdir d # mv foo d # ls d foo # Diez -- http://mail.python.org/mailman/listinfo/python-list
MySQLDB - return strange type of variable
Hi all. I'm trying get data from text field in MySQl 5.0 with my National
characters. Data are stored in utf8 encodings. Here is the script:
import MySQLdb, MySQLdb.cursors
conn = MySQLdb.connect(host='localhost', user='root', passwd='123456',
db='profile_locale')
c = conn.cursor(MySQLdb.cursors.DictCursor)
c.execute(SET CHARACTER SET utf8)
c.execute(SELECT string_value FROM lang_pl_pl WHERE id=8)
row = c.fetchone()
print row
and i get:
{'string_value': array('c', 'Zmie\xc5\x84 has\xc5\x82o')}
where it come array type?
How can i get value 'Zmie\xc5\x84 has\xc5\x82o' ?? because I trying do this
and I can't achieve. If I do c.fetchone -shouldn't i get type tuple?
I'm using MySQLdb 1.2.0 on Windows XP Professional SP2 installed
Any help will be appreciated
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MyghtyBoard 0.0.1
MyghtyBoard 0.0.1 alfa have been released. It's a forum script written in python/myghty/hk_classes. Download: http://sourceforge.net/project/showfiles.php?group_id=163611package_id=185021release_id=404570 Few old screens: http://www.fotosik.pl/pokaz_obrazek/q0pq9tc1i6aphwc4.html http://www.fotosik.pl/pokaz_obrazek/4xdrt560ove5i0gf.html http://www.fotosik.pl/pokaz_obrazek/tf2tqifsog43eiuv.html Requirements: - Python :) - Myghty - http://www.myghty.org/ - hk_classes python module - http://hk-classes.sourceforge.net/tiki-page.php?pageName=Description - MySQL database Installation howto is in the readme. All comments and suggestions are welcome. -- http://mail.python.org/mailman/listinfo/python-list
Re: encoding problems (é and è)
Serge Orlov wrote: The problem is that U+0587 is a ligature in Western Armenian dialect (hy locale) and a character in Eastern Armenian dialect (hy_AM locale). It is strange the code point is marked as compatibility char. It either mistake or political decision. It used to be a ligature before orthographic reform in 1930s by communist government in Armenia, then it became a character, but after end of Soviet Union (1991) they started to think about going back to old orthography. Though it hasn't happened and it's not clear if it will ever happen. So U+0587 is a character. Thanks for the explanation. Without any knowledge, I would suspect a combination of mistake and political decision. The Unicode consortium (and ISO) always uses native language experts to come up with character definitions, although the process is today likely more elaborate and precise than in the early days. Likely, the Unicode consortium found somebody speaking the Western Armenian dialect (given that many of these speakers live in North America today); the decision might have been a mixture of lack of knowledge, ignorance, and perhaps even political bias. Regards, Martin -- http://mail.python.org/mailman/listinfo/python-list
Re: Building Python extensions from sources on Windows
TPJ wrote: And that's the problem: I understand the fact, that in order to build a non-pure distrubution, all the C sources have to be compiled (to dll libraries?). But there's the problem: I don't know which one compiler should I use. Do I have to use the same compiler, that the Python has been compiled with? If so, which one of the Windows compilers has been used to compile Python? Or perhaps could I use an another compiler? Which one, then? You should use the same compiler; for Python 2.4, that was Visual Studio .NET 2003. More specifically, you need to use the same version of the C library - the compiler does not matter that much. The C library is msvcr71.dll. It is possible to build extensions with other compilers as well, e.g. GNU mingw32. If you don't VS 2003, but want to use that compiler, take a look at http://www.vrplumber.com/programming/mstoolkit/ Regards, Martin -- http://mail.python.org/mailman/listinfo/python-list
Beginner's question: executing scripts under Win XP pro
Hi, I'm a beginner with python 2.4. I use it on Win XP Pro. I have no problems with the GUI IDLE, but when I copy the instructions in a script file, say 'test.py' and double click on the file, I have just a console window for a few moments, no output shown and the window closes automatically before I can do anything else. I am greatful if anyone can help me. Please reply also to [EMAIL PROTECTED] Thanks a lot, Jean-Claude -- http://mail.python.org/mailman/listinfo/python-list
Re: Beginner's question: executing scripts under Win XP pro
there seems to be an error in your script. Why don't you execute it directly from IDLE (F5) ? There, you should see where the problem is. -- http://mail.python.org/mailman/listinfo/python-list
Re: How do I handle #
On Sat, 25 Mar 2006 07:06:59 +0100, Fredrik Lundh wrote: Michael Sperlle wrote: I need to write out a file containing the # comment. When I try to specify it as part of a literal, everything afterward turns into a comment. turns into a comment in what sense ? from your description, it sounds like a bug in your editor's syntax highlighter. Python itself definitely won't look for comment markers inside string literals. Thanks, I just tried it again and it worked. I must have had a misplaced bit. -- http://mail.python.org/mailman/listinfo/python-list
Re: Beginner's question: executing scripts under Win XP pro
Thank you for your answer. I did it. It executes perfectly in IDLE. I made a copy/paste from IDLE into the 'test.py' and I obseved the behavior I discribed. The script is extremely simple (it is just a test): n=0 while( n10 ): print n,n*n n+=1 [EMAIL PROTECTED] a écrit dans le message de news: [EMAIL PROTECTED] there seems to be an error in your script. Why don't you execute it directly from IDLE (F5) ? There, you should see where the problem is. -- http://mail.python.org/mailman/listinfo/python-list
Re: What's The Best Editor for python
Christoph Zwerschke wrote: Just because nobody has mentioned them so far: - SciTe is a perfect editor for Pyhton on Win and Linx - PyScripter is a wonderful IDE (but only on Win) - DrPython is a nice platform independent editor/mini-IDE http://www.artima.com/forums/flat.jsp?forum=106thread=148389start=0msRange=15 http://activestate.com/Products/Komodo/?utm_source=home_pageutm_medium=bannerutm_campaign=Komodo http://wingware.com/ Also vim, emacs, jedit or eclipse, textmate, Leo, Kate, -- http://mail.python.org/mailman/listinfo/python-list
Re: Beginner's question: executing scripts under Win XP pro
On Sat, 25 Mar 2006 14:45:34 +0100, Jean-Claude Garreau [EMAIL PROTECTED] wrote: Hi, I'm a beginner with python 2.4. I use it on Win XP Pro. I have no problems with the GUI IDLE, but when I copy the instructions in a script file, say 'test.py' and double click on the file, I have just a console window for a few moments, no output shown and the window closes automatically before I can do anything else. I am greatful if anyone can help me. Please reply also to [EMAIL PROTECTED] Thanks a lot, Jean-Claude Your script may be working properly, but XP simply removes the window after the script runs. Here is a simple fix that will stop at the end of the script and leave the Command window open: print Hello World raw_input() -- http://mail.python.org/mailman/listinfo/python-list
Re: What's The Best Editor for python
gene tani wrote: Christoph Zwerschke wrote: Just because nobody has mentioned them so far: http://spyced.blogspot.com/2006/02/pycon-python-ide-review.html -- http://mail.python.org/mailman/listinfo/python-list
Re: __slots__
Aahz [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] Because __slots__ breaks with inheritance. I believe that was the point of Ziga's example, which I acknowledged as a good one in my reply. So there still appears to be this single reason, which applies if your class may be subclassed. Does this beg the question of whether __slots__ *should* break with inheritance? One other question I did not get answered: is there any simple example of a Pythonic use of __slots__ that does NOT involve the creation of **many** instances. Thanks, Alan Isaac -- http://mail.python.org/mailman/listinfo/python-list
Re: overlapping sets
Lonnie Princehouse [EMAIL PROTECTED] wrote: There is a sets.Set class built in to Python. You might want to use In 2.4, there's also a set builtin type -- you can keep using the sets module from the standard library, but the built-in set is faster. If you need compatibility with both 2.3 and 2.4, getting the best set implementation available in each case, the common idiom is: try: set except NameError: from sets import Set as set The interface to use the set type/class is the same in either case. Alex -- http://mail.python.org/mailman/listinfo/python-list
Re: Comparisons and singletons
Ziga Seilnacht [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] a = 1 b = 1 a == b True a is b False Two follow up questions: 1. I wondered about your example, and noticed a = 10 b = 10 a is b True Why the difference? 2. If I really want a value True will I ever go astray with the test: if a is True: a = True b = 1. c = 1 a is True, b is True, c is True (True, False, False) Thanks, Alan Isaac -- http://mail.python.org/mailman/listinfo/python-list
Re: __slots__
David Isaac [EMAIL PROTECTED] wrote: ... Does this beg the question of whether __slots__ *should* break with inheritance? How would you expect the following code to behave: class Base(object): def __init__(self): self.x = 23 class Derived(Base): __slots__ = 'y', ? I would expect it to work (as it does in Python), therefore I think it's fit and proper that __slots__ breaks with inheritance, meaning it basically has no effect unless every class in the inheritance DAG has slots. One other question I did not get answered: is there any simple example of a Pythonic use of __slots__ that does NOT involve the creation of **many** instances. Since the only benefit of __slots__ is saving a few bytes per instance, it's not worth the bother unless there are many instances -- so, the answer is 'no'. Alex -- http://mail.python.org/mailman/listinfo/python-list
check object being a compiled regular expression
Hi,
sorry, this seems to be a FAQ but I couldn't find anything
I need to check if an object is a compiled regular expression
Say
import re
RX= re.compile('^something')
how to test
if RX is a compiled regular expression
type(RX) says
type '_sre.SRE_Pattern'
but
if isinstance(RX,_sre.SRE_Pattern)
and
if isinstance(RX,re._sre.SRE_Pattern)
both fail.
Many thanks for a hint,
Helmut Jarausch
Lehrstuhl fuer Numerische Mathematik
RWTH - Aachen University
D 52056 Aachen, Germany
--
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Re: Comparisons and singletons
On 3/25/06, David Isaac [EMAIL PROTECTED] wrote: Ziga Seilnacht [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] a = 1 b = 1 a == b True a is b False Two follow up questions: 1. I wondered about your example, and noticed a = 10 b = 10 a is b True Why the difference? 2. If I really want a value True will I ever go astray with the test: if a is True: a = True b = 1. c = 1 a is True, b is True, c is True (True, False, False) None, True, and False are all singletons and should be compared with is. There are some other singletons - small integers (up to 10, I believe) as well as the empty string. However, I am not sure (and I am sure someone will correct me if I'm wrong) but I believe that these are not specified as singletons, and that it's an implementation detail that they are. Thanks, Alan Isaac -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
Re: MySQLDB - return strange type of variable
Grzegorz Smith wrote:
Hi all. I'm trying get data from text field in MySQl 5.0 with my National
characters. Data are stored in utf8 encodings. Here is the script:
import MySQLdb, MySQLdb.cursors
conn = MySQLdb.connect(host='localhost', user='root', passwd='123456',
db='profile_locale')
c = conn.cursor(MySQLdb.cursors.DictCursor)
c.execute(SET CHARACTER SET utf8)
c.execute(SELECT string_value FROM lang_pl_pl WHERE id=8)
row = c.fetchone()
print row
and i get:
{'string_value': array('c', 'Zmie\xc5\x84 has\xc5\x82o')}
where it come array type?
Recent versions of MySQL/MySQLdb return binary strings as Python array
objects, rather than bytestrings (I think the change was around version 4.2
of MySQL.) Details on array objects are here:
http://www.python.org/doc/lib/module-array
How can i get value 'Zmie\xc5\x84 has\xc5\x82o' ??
array('c', 'Zmie\xc5\x84 has\xc5\x82o').tostring()
If I do c.fetchone -shouldn't i get type tuple?
If you use the default MySQLdb cursor object you will get a tuple. Using the
DictCursor as you are returns a dictionary instead.
Jeffrey
--
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Re: how to format a return value by using re.sub(regx,rep1,str)?
dongdong [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
for example:
re.sub('a( [^]+)+\s?[^^]*/a','',' asd gaa target=_blank
href=http://www.sine.com; class=wordstyle asdgasdghae rha/a')
I wish to get the return value asd ga asdgasdghae rha,how do do?
I have a impression on % and {number},but forgot how to use them.
Well, here's the pyparsing rendition (two, actually). I hope it's easier to
follow then trying to pick apart the above regexp. Both
Download pyparsing at http://pyparsing.sourceforge.net.
-- Paul
instr = ' asd gaa target=_blank
href=http://www.sine.com; class=wordstyle asdgasdghae rha/a'
from pyparsing import makeHTMLTags,Suppress,MatchFirst
# makeHTMLTags returns a tuple of the start and end pattern for the given
tag
aStart,aEnd = makeHTMLTags(a)
# define a filter that will suppress the opening and closing tags
# this is easily extended to filter additional patterns, too
filter = Suppress(aStart) | Suppress(aEnd)
# invoke transformString using the filter
print filter.transformString(instr)
# or for the dense-code minded...
filter = MatchFirst( map( Suppress, makeHTMLTags(a) ) )
print filter.transformString(instr)
Prints:
' asd ga asdgasdghae rha'
' asd ga asdgasdghae rha'
--
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Re: check object being a compiled regular expression
This is crude, but works:
import re
RX= re.compile('^something')
str(RX).find(_sre.SRE_Pattern) == 0
True
--
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Re: Python types
Salvatore wrote: Hello, I've read several articles where it's said that Python is weakly typed. I'm a little surprised. All objects seem to have a perfectly defined type Am i wrong? Regards Aye, the other posters are right about you being right. This is just one of the great mass confusions in programming (sadly, there are a lot of them these days). -- http://mail.python.org/mailman/listinfo/python-list
Re: Python types
Thank's everybody :-) Here is a type définition I've found on the net which I agree with : Attribute of a variable which determines the set of the values this variabe can take and the operations we can apply on it. -- http://mail.python.org/mailman/listinfo/python-list
Re: Comparisons and singletons
David Isaac wrote: Ziga Seilnacht [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] a = 1 b = 1 a == b True a is b False Two follow up questions: 1. I wondered about your example, and noticed a = 10 b = 10 a is b True Why the difference? Python has a special internal list of integers in which it caches numbers smaller than 1000 (I'm not sure that the number is correct), but that is an implementation detail and you should not rely on it. 2. If I really want a value True will I ever go astray with the test: if a is True: a = True b = 1. c = 1 a is True, b is True, c is True (True, False, False) I think that True and False, although they were added in version 2.3, were not true singeltons until version 2.4. You should finish reading the PEP, see especially this part: - Don't compare boolean values to True or False using == Yes: if greeting: No:if greeting == True: Worse: if greeting is True: Thanks, Alan Isaac Ziga -- http://mail.python.org/mailman/listinfo/python-list
Re: check object being a compiled regular expression
Helmut Jarausch schrieb:
Hi,
sorry, this seems to be a FAQ but I couldn't find anything
I need to check if an object is a compiled regular expression
Say
import re
RX= re.compile('^something')
how to test
if RX is a compiled regular expression
type(RX) says
type '_sre.SRE_Pattern'
but
if isinstance(RX,_sre.SRE_Pattern)
and
if isinstance(RX,re._sre.SRE_Pattern)
both fail.
Many thanks for a hint,
Just invoke type on a compiled expression and store that:
Python 2.4.1 (#2, Mar 31 2005, 00:05:10)
[GCC 3.3 20030304 (Apple Computer, Inc. build 1666)] on darwin
Type help, copyright, credits or license for more information.
Welcome to rlcompleter2 0.96
for nice experiences hit tab multiple times
import re
re_type = type(re.compile(foo))
isinstance(re.compile(bar), re_type)
True
Diez
--
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Custom behavior defined in the imported module
I have a new enhancement to pyparsing that doubles the parse speed (using a technique called packrat parsing), but which is not suitable for all parsers, specifically those that have complex parse actions. I don't want to just enable this feature by default - I think there is too much risk of it breaking existing code. Actually, I think the chance is 10%, but I think I'm better off leaving the feature dormant unless explicitly enabled, so that it doesn't take someone by surprise when they install the new version. The alternatives I've come up with for the user to enable this packrat parse mode are: 1. Add a staticmethod enablePackrat() to the pyparsing ParserElement class, to modify the ParserElement defintion of the internal (non-packrat) parse() method. This method essentially runs code looking like: ParserElement.parse,ParserElement.originalParse = \ ParserElement.packratParse,ParserElement.parse where the packratParse method is a memoizing wrapper around calls to originalParse. This technique requires the caller to invoke ParserElement.enablePackrat() after having imported pyparsing. This renaming trick actually breaks when using psyco, if psyco has compiled the pyparsing methods before calling enablePackrat(). You have to import pyparsing, call enablePackrat(), then call psyco.full(), or whatever psyco commands to cache compiled versions of the pyparsing function code. 2. Implement some sort of onImport hook to allow the calling routine to use a specialized import statement, something like from pyparsing import packratParsing that would do the same as the above enablePackrat() call, but perhaps in a more Pythonic-looking manner. (I was inspired along these lines from Jim Hugunin's IronPython talk, in which he used import hooks to modify the behavior of the base Python string class.) I've looked a bit at imp, imputil, and ihooks, and these all seem to be modifiers to the import mechanism as called from the importing module. What import hooks are accessible from within the module being imported? Is there any way to see which form of import was used, and to access the arguments of the import command as invoked from the calling module? I was hoping that by hooking into the import command, I could make this mode-setting command more atomic with the actual import of pyparsing's class and function definitions, to avoid problems like the psyco issue. Plus I'm open to other suggestions as well. Thanks, -- Paul -- http://mail.python.org/mailman/listinfo/python-list
Re: __slots__
In article [EMAIL PROTECTED], [EMAIL PROTECTED] (Alex Martelli) wrote: One other question I did not get answered: is there any simple example of a Pythonic use of __slots__ that does NOT involve the creation of **many** instances. Since the only benefit of __slots__ is saving a few bytes per instance, it's not worth the bother unless there are many instances -- so, the answer is 'no'. I can think of at least two other benefits to using __slots__: 1. If you have a typo in an attribute assignment you get an exception instead of a latent downstream bug. 2. Implicit documentation. rg -- http://mail.python.org/mailman/listinfo/python-list
Re: Python types
Salvatore [EMAIL PROTECTED] wrote: Thank's everybody :-) Here is a type définition I've found on the net which I agree with : Attribute of a variable which determines the set of the values this variabe can take and the operations we can apply on it. Hmmm -- that doesn't work very well for languages in which a variable is just a name, because we cannot apply any operations at all on THE NAME -- we apply operations on the OBJECT to which the name refer. This issue arises with both languages where names can take any object, like Python, and ones where the compiler infers the subset (type) of objects that each name can take, like Boo. Moreover, asserting that 'type' is an attribute of a variable means, for example, that a function's return-value, not being a variable, has no type -- that really makes no sense. And similarly for other expressions; e.g., consider, in Java, something like...: ( (Fooable) zip() ).getFoo() + ( (Barable) zop() ).getBar() no variables in sight, yet a lot of types in Java's normal sense -- the types of whatever objects zip() and zop() return, the (Fooable and Barable, respectively) types after the cast, the type of whatever getFoo and getBar return, and the type of their sum... Saying that an _object_ has a type thus makes more sense (even in Java and similar languages) than considering type to be an attribute of a variable -- *in addition* to objects, which have types, other language constructs, depending on the language, may or may not be imbued with type-constraints, be that declaratively (as, say, in Java), by compiler inference (as, say, in Boo), or by other means yet such as stropping (e.g., in Perl, you can tell from just looking at the name whether a variable refers to a scalar, $something, an array, @something, or a hash, %something -- in Python, Java or Boo you can't tell from just the name, but rather must find a declaration [Java], assignment [Python] or use [Boo] to let you read or infer the scalar vs array type issue). Alex -- http://mail.python.org/mailman/listinfo/python-list
Re: imap folder scanner
senders is list, that is why that regex does not work. I don't like regexes that much so you can try this:parsed_senders = []sender = for item in senders: if isinstance(item,tuple):
item= ''.join(item) if item==')': parsed_senders.append(sender[sender.find('From:')+5:].strip()) sender = else: sender+=itemprint parsed_sendersSebastjan
On 3/25/06, Kun [EMAIL PROTECTED] wrote:
Marco Carvalho wrote: On 3/24/06, Sebastjan Trepca [EMAIL PROTECTED] wrote:
m.select('myfolder') Some attention is required here to retrieve subfolders.
Some imap servers like Cyrus and Courier uses INBOX.subfolder to access subfolders. -- Marco Carvalho (macs) | marcoacarvalho(a)gmail.com
http://arrakis.no-ip.info| http://cdd.debian-br.org Maceio - Alagoas - Brazil Debian GNU/Linux unstable (Sid)
GNU-PG ID:08D82127 - Linux Registered User #141545
Notícias Semanais do Debian em Português: http://www.debian.org/News/weekly Alertas de Segurança Debian (DSA):
http://www.debian.org/security
so i have used the following code and have successfully saved a list ofsenders as a string.however, the string has much more information thanjust the email address and i am wondering what is the best way to parse
the email address out of the entire string.sample string: print status, sendersOK [('460 (BODY[HEADER.FIELDS (FROM)] {46}', 'From: Friend
[EMAIL PROTECTED]
\r\n\r\n'), ')', ('462 (BODY[HEADER.FIELDS (FROM)] {37}','From: Kun [EMAIL PROTECTED]\r\n\r\n'), ')']
how do i just get the two email addresses out of there?
my code is:from imaplib import *import getpassm = IMAP4()m.login('xx', 'xxx')m.select('Inbox')status, data = "" BIKES)')
assert status=='OK', Error. Message: %s%datadata = "" #you get your results in a list and search returns onlyone resultassert data,No results#cool, we have results, but IMAP's search command only returns IDs so we
have to fetch#msgs nowstatus,senders = m.fetch(data.replace(' ',','),'(BODY.PEEK[HEADER.FIELDS(FROM)])')assert status=='OK', Error. Message: %s%dataprint senders--
http://mail.python.org/mailman/listinfo/python-list-- Sebastjan
http://www.trepca.si/blog
--
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Re: newbie parsing question
Kun [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
i have a list of that is:
[('460 (BODY[HEADER.FIELDS (FROM)] {46}', 'From: Friend
[EMAIL PROTECTED]\r\n\r\n'), ')', ('462 (BODY[HEADER.FIELDS (FROM)] {37}',
'From: Kun [EMAIL PROTECTED]\r\n\r\n'), ')']
how do i parse the email addresses out of it into another list or string?
data = [('460 (BODY[HEADER.FIELDS (FROM)] {46}',
'From: Friend [EMAIL PROTECTED]\r\n\r\n'), ')',
('462 (BODY[HEADER.FIELDS (FROM)] {37}',
'From: Kun [EMAIL PROTECTED]\r\n\r\n'), ')']
for s in data:
if type(s) is tuple:
print s[1][6:].strip().split()[1]
Gives:
[EMAIL PROTECTED]
[EMAIL PROTECTED]
-- Paul
--
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Re: __slots__
Ron Garret [EMAIL PROTECTED] wrote: In article [EMAIL PROTECTED], [EMAIL PROTECTED] (Alex Martelli) wrote: One other question I did not get answered: is there any simple example of a Pythonic use of __slots__ that does NOT involve the creation of **many** instances. Since the only benefit of __slots__ is saving a few bytes per instance, it's not worth the bother unless there are many instances -- so, the answer is 'no'. I can think of at least two other benefits to using __slots__: 1. If you have a typo in an attribute assignment you get an exception instead of a latent downstream bug. If your unittests are so feeble that they won't catch such typos, you have far bigger problems -- and you should be using pychecker or pylint anyway, as they'll catch far more typos than __slots__ ever will (far from all, of course -- a simple typo of + vs - can still kill you -- which is why they can't *substitute* for unittests in any case). 2. Implicit documentation. If you don't document what the sundry variables are FOR, you're really not documenting your code at all -- just listing the names of some attributes is far too weak. If the existence of such listing can in any way give the programmer an excuse to NOT do real documentation (as your classifying it as implicit documentation strongly suggests), then the net effet is not a benefit, but a serious detriment to code quality. Alex -- http://mail.python.org/mailman/listinfo/python-list
Re: image reduction script
Larry, I actually did not find what I needed in PIL (missed it ?) but found this package quite usefull: http://www.imagemagick.org/script/index.php Philippe Larry Bates wrote: Philippe Martin wrote: Hi, I need to write a script to reduce the resolution/color depth of an image (ex: .jpg) based on a target size. The point is for the target picture to still be understandable - yet I target getting down to 5K. Are there libraries out there that could help me start ? Thanks Philippe Python Imaging Library (PIL). http://www.pythonware.com/products/pil/ -Larry Bates -- http://mail.python.org/mailman/listinfo/python-list
Accessing func_name from inside a function
I'd like to access the name of a function from inside the function. My first idea didn't work. def foo(): ... print func_name ... foo() Traceback (most recent call last): File stdin, line 1, in ? File stdin, line 2, in foo NameError: global name 'func_name' is not defined My second attempt works but looks ugly. def foo(): ... import inspect ... print inspect.stack()[0][3] ... foo() foo Is there a standard way of getting the name of a function from inside the function? -- http://mail.python.org/mailman/listinfo/python-list
Re: Python types
Grazie ALex, for your comment. -- http://mail.python.org/mailman/listinfo/python-list
Re: __slots__
Ron Garret wrote: [EMAIL PROTECTED] (Alex Martelli) wrote: One other question I did not get answered: is there any simple example of a Pythonic use of __slots__ that does NOT involve the creation of **many** instances. Since the only benefit of __slots__ is saving a few bytes per instance, it's not worth the bother unless there are many instances -- so, the answer is 'no'. I can think of at least two other benefits to using __slots__: 1. If you have a typo in an attribute assignment you get an exception instead of a latent downstream bug. Only if all classes in the inheritance define __slots__, and don't include __dict__ in their slots. In particular, it means you can never rely on this in any code you write which inherits from a library class over which you have no control. In other words, it is such a risky thing to depend on that you would be much better never to rely on it. Try writing some unit tests instead. 2. Implicit documentation. Explicit is better than implicit. -- http://mail.python.org/mailman/listinfo/python-list
Re: Accessing func_name from inside a function
James Thiele wrote: Is there a standard way of getting the name of a function from inside the function? No, there isn't. Martin -- http://mail.python.org/mailman/listinfo/python-list
HIRING: PHP Developer
From: In Need - view profile Date: Fri, Mar 24 2006 10:39 pm Email: In Need [EMAIL PROTECTED] Groups: hfx.forsale Not yet ratedRating: show options Reply | Reply to Author | Forward | Print | Individual Message | Show original | Report Abuse | Find messages by this author We are hiring a PHP developer! The site must contain the following: - database - administrator panel (implementing multiple employee logins / permissions) - credit card / paypal processing - affiliate program - news scripting control panel - image design - coupons / discounts, gift certificates - customer log in / log out - specials page - contests - forum Would like to have: - flash design - various language support - pages that have pre-loaded data (click the link and no new page opens within the main frame. Simply brings the information forward). The individual(s) that are selected for this project will have the opportunity to remain our company's web and image designer(s). Please send a price quote for the above mentioned request, as well as a quote for a design similar to www.IGE.com to [EMAIL PROTECTED] Thank you. -- http://mail.python.org/mailman/listinfo/python-list
detecting drives for windows and linux
Hi, I'm writing a file browser, but I'm not sure how I could go about detecting the drives available on windows and linux systems (preferably using the standard modules if possible). I guess I could just try to list root on each letter of the alphabet for windows and see if it works, but that seems crude; besides, I want to know what kind of drive each drive/partition is (i.e. is it local and is it a harddrive or optical drive). Thanks, Brian -- http://mail.python.org/mailman/listinfo/python-list
Re: Custom behavior defined in the imported module
Paul McGuire wrote: The alternatives I've come up with for the user to enable this packrat parse mode are: 1. Add a staticmethod enablePackrat() to the pyparsing ParserElement class, to modify the ParserElement defintion of the internal (non-packrat) parse() method. This method essentially runs code looking like: ParserElement.parse,ParserElement.originalParse = \ ParserElement.packratParse,ParserElement.parse Could you just define a module pyparsingpackrat like this: from pyparsing import * ParserElement.parse,ParserElement.originalParse = \ ParserElement.packratParse,ParserElement.parse Then users would just import pyparsingpackrat instead of pyparsing. Kent -- http://mail.python.org/mailman/listinfo/python-list
Re: Accessing func_name from inside a function
James Thiele wrote: I'd like to access the name of a function from inside the function. http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/66062 Kent -- http://mail.python.org/mailman/listinfo/python-list
Re: Custom behavior defined in the imported module
Kent Johnson [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] Paul McGuire wrote: The alternatives I've come up with for the user to enable this packrat parse mode are: 1. Add a staticmethod enablePackrat() to the pyparsing ParserElement class, to modify the ParserElement defintion of the internal (non-packrat) parse() method. This method essentially runs code looking like: ParserElement.parse,ParserElement.originalParse = \ ParserElement.packratParse,ParserElement.parse Could you just define a module pyparsingpackrat like this: from pyparsing import * ParserElement.parse,ParserElement.originalParse = \ ParserElement.packratParse,ParserElement.parse Then users would just import pyparsingpackrat instead of pyparsing. Kent I *really* like keeping pyparsing's footprint down -- http://mail.python.org/mailman/listinfo/python-list
Re: Custom behavior defined in the imported module
Kent Johnson [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] Paul McGuire wrote: The alternatives I've come up with for the user to enable this packrat parse mode are: 1. Add a staticmethod enablePackrat() to the pyparsing ParserElement class, to modify the ParserElement defintion of the internal (non-packrat) parse() method. This method essentially runs code looking like: ParserElement.parse,ParserElement.originalParse = \ ParserElement.packratParse,ParserElement.parse Could you just define a module pyparsingpackrat like this: from pyparsing import * ParserElement.parse,ParserElement.originalParse = \ ParserElement.packratParse,ParserElement.parse Then users would just import pyparsingpackrat instead of pyparsing. Kent (damned touchy touchpad!) ... anyway... I *really* like keeping pyparsing's footprint down to just one Python module. It would be nice if I could pass an argument along with the import statement: import pyparsing(packrat=True) or some such. -- Paul -- http://mail.python.org/mailman/listinfo/python-list
Re: Accessing func_name from inside a function
OK. But that's just as ugly as my attempt. -- http://mail.python.org/mailman/listinfo/python-list
Re: Custom behavior defined in the imported module
Kent Johnson [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] Paul McGuire wrote: The alternatives I've come up with for the user to enable this packrat parse mode are: 1. Add a staticmethod enablePackrat() to the pyparsing ParserElement class, to modify the ParserElement defintion of the internal (non-packrat) parse() method. This method essentially runs code looking like: ParserElement.parse,ParserElement.originalParse = \ ParserElement.packratParse,ParserElement.parse Could you just define a module pyparsingpackrat like this: from pyparsing import * ParserElement.parse,ParserElement.originalParse = \ ParserElement.packratParse,ParserElement.parse Then users would just import pyparsingpackrat instead of pyparsing. Kent I'm also not overkeen on elevating the word packrat into the module name itself! -- Paul -- http://mail.python.org/mailman/listinfo/python-list
a somewhat off-topic question about linux
I'm interested in trying out Linux, probably Ubuntu, but I was wondering which distribution you guys like to use (because it's a pain trying to decide!) and you guys are smart. And to keep it Python related, I'll also ask, is there anything special I need to know about using Python on Linux? Do any things change, or can it be used just as I use it on Windows? Thanks! -- http://mail.python.org/mailman/listinfo/python-list
Re: a somewhat off-topic question about linux
On Sat, Mar 25, 2006 at 03:09:53PM -0500, John Salerno wrote: I'm interested in trying out Linux, probably Ubuntu, but I was wondering which distribution you guys like to use (because it's a pain trying to decide!) and you guys are smart. We had this discussion a couple of time during the last months already. :) I believe the most frequently recommended distribution was Ubuntu (or Debian which Ubuntu is based upon). And to keep it Python related, I'll also ask, is there anything special I need to know about using Python on Linux? Do any things change, or can it be used just as I use it on Windows? Some issues are platform-dependant. You will not be able to read the registry or start a Microdoze-based program of course. Otherwise most parts of Python are working the same way unless the documentation tells otherwise in certain details. Christoph (Hoping to prevent a huge thread discussing pros/cons of distributions) -- ~ ~ .signature [Modified] 1 line --100%--1,48 All -- http://mail.python.org/mailman/listinfo/python-list
Re: detecting drives for windows and linux
BWill wrote: Hi, I'm writing a file browser, but I'm not sure how I could go about detecting the drives available on windows and linux systems (preferably using the standard modules if possible). I guess I could just try to list root on each letter of the alphabet for windows and see if it works, but that seems crude; besides, I want to know what kind of drive each drive/partition is (i.e. is it local and is it a harddrive or optical drive). I'm not aware of any cross-platform way of doing this. On Windows you have a few options, but I'd go down the WMI route; it just makes life easier for doing this kind of thing. You might want to start by adapting this example: http://tgolden.sc.sabren.com/python/wmi_cookbook.html#percentage_free by removing the restriction to fixed disk (DriveType=3) TJG -- http://mail.python.org/mailman/listinfo/python-list
Re: Comparisons and singletons
Em Sáb, 2006-03-25 às 09:11 -0800, Ziga Seilnacht escreveu: Python has a special internal list of integers in which it caches numbers smaller than 1000 (I'm not sure that the number is correct), but that is an implementation detail and you should not rely on it. By testing: a = 10 b = 10 a is b True a = 100 b = 100 a is b False a = 50 b = 50 a is b True a = 70 b = 70 a is b True a = 99 b = 99 a is b True And to the other side: a = -10 b = -10 a is b False a = -5 b = -5 a is b True a = -6 b = -6 a is b False And then, when looking to Python 2.4's code[1]: #ifndef NSMALLPOSINTS #define NSMALLPOSINTS 100 #endif #ifndef NSMALLNEGINTS #define NSMALLNEGINTS 5 #endif #if NSMALLNEGINTS + NSMALLPOSINTS 0 /* References to small integers are saved in this array so that they can be shared. The integers that are saved are those in the range -NSMALLNEGINTS (inclusive) to NSMALLPOSINTS (not inclusive). */ static PyIntObject *small_ints[NSMALLNEGINTS + NSMALLPOSINTS]; #endif However, as stated before, don't rely on these numbers. The trunk[2] defines now 256, not 99, as the biggest integer shared. [1] http://svn.python.org/projects/python/tags/release24-fork/Objects/intobject.c [2] http://svn.python.org/projects/python/trunk/Objects/intobject.c HTH, -- Felipe. -- http://mail.python.org/mailman/listinfo/python-list
Re: a somewhat off-topic question about linux
Christoph Haas wrote: On Sat, Mar 25, 2006 at 03:09:53PM -0500, John Salerno wrote: I'm interested in trying out Linux, probably Ubuntu, but I was wondering which distribution you guys like to use (because it's a pain trying to decide!) and you guys are smart. We had this discussion a couple of time during the last months already. :) I believe the most frequently recommended distribution was Ubuntu (or Debian which Ubuntu is based upon). Oh sorry! I should have checked first. And yeah, I don't mean to start a big argument about which is better... :) But thanks for the answer. I'm comforted to know that my choice is a good one. And as for Python, as long as there are no surprises, I should be okay. -- http://mail.python.org/mailman/listinfo/python-list
pondering about the essence of types in python
let's start with a question: == class z(object): ... def __init__(self): ... self.blah=5 ... class x(object): ... def __init__(self): ... z.__init__(self) ... y=x() Traceback (most recent call last): File stdin, line 1, in ? File stdin, line 3, in __init__ TypeError: unbound method __init__() must be called with z instance as first argument (got x instance instead) == and the question is -- WHY? what is a type? generally speaking, if everything were an object, the type only defines the MRO (method resolution order) for that object. x.y first looks at the instance, then the class, then the parent classes, etc. (this was changed a little in python2.3 to something more complicated, but it's basically the same). you can see the mro like this: == class x(object): pass class y(x): pass class z(y): pass a=z() print a.__class__.mro() [class '__main__.z', class '__main__.y', class '__main__.x', type 'object'] == after all, if we stay out of builtin types, all python objects are dicts, which support chian-lookup according to the mro. and a method is just a function that takes the instance as a first argument. so why is all this type hassle necessary? if we've taken it that far already, then let's really go over the edge. I WANT TO DERIVE FROM INSTANCES. not only types. why? i'm the developer of rpyc (http://rpyc.sf.net), and i got a request from someone to add support for deriving from remote types. the concrete example he gave was quite silly, but after i thought about it a little, i said why not try? a little intro about rpyc: it gives you proxies (instances) to remote objects, which can be instances, functions, or classes. and that user wanted to do something like this: class my_frame(conn.modules.wx.Frame): ... so the client was actually creates the graphics on the server. not very usable, but why not? all it means is, when he does my_frame.xyz, python should add the remote type to the mro chain. not too bizar. but __mro__ is a readonly attribute, and deriving from instances is impossible (conn.modules.wx.Frame is a PROXY to the class)... and again -- WHY? these all look like INTENTIONAL limitations. someone went around and added type checks (which are NOT pythonic) into the cPython implementation. argh. why do that? so i thought -- let's be nasty. i created a function that creates a class that wraps an instance. very ugly. small children and peope with heart problems should close their eyes. def derive_from(obj): class cls(object): def __getattr(self, name): return getattr(obj, name) return cls class my_frame(derive_from(conn.modules.wx.Frame)): the actual implementation is quite more complex, but that shows the concept. so now i'm experimenting with that little shit. but then i came to the problem that methods check the type of the first argument... ARGH. dont check types. DONT. the whole point of duck-typing is you DONT CHECK THE TYPES. you just work with objects, and instead of TypeError you'd get AttribiuteError, which is much better. AAARRGGGHH. python is EVIL at the low level. the high-level is just fine, but when you try to go under the hood... you better go with an exorcist. -tomer -- http://mail.python.org/mailman/listinfo/python-list
Re: detecting drives for windows and linux
Tim Golden wrote: BWill wrote: Hi, I'm writing a file browser, but I'm not sure how I could go about detecting the drives available on windows and linux systems (preferably using the standard modules if possible). I guess I could just try to list root on each letter of the alphabet for windows and see if it works, but that seems crude; besides, I want to know what kind of drive each drive/partition is (i.e. is it local and is it a harddrive or optical drive). I'm not aware of any cross-platform way of doing this. On Windows you have a few options, but I'd go down the WMI route; it just makes life easier for doing this kind of thing. You might want to start by adapting this example: http://tgolden.sc.sabren.com/python/wmi_cookbook.html#percentage_free by removing the restriction to fixed disk (DriveType=3) TJG oh, I wasn't expecting a single solution for both platforms, just some good solutions thanks -- http://mail.python.org/mailman/listinfo/python-list
Re: a somewhat off-topic question about linux
John Salerno wrote: I'm interested in trying out Linux, probably Ubuntu, but I was wondering which distribution you guys like to use (because it's a pain trying to decide!) and you guys are smart. If you just want to try out Linux then a very easy way is to use VMWare Player: download it from http://www.vmware.com/products/player/. You can then run almost any Linux you wish directly on your windows system, no need to reboot or anything. Start with Browser Appliance which is a cut-down installation of Ubuntu (but it is configured so that things like the clipboard interact properly with Windows clipboard, and you can share files by sharing folders on windows and connecting to them from Ubuntu). Then you can use the package manager (on the System menu) to install Python and other packages (when it asks for a password use 'vmware' if you are using the default 'vmware' user). You need about 2Gb of free disk space to install and use VMWare and Browser appliance: all of the Linux file system is stored in one file which expands as required up to 9.5Gb maximum (it helps performance if you keep the file defragmented: use contig.exe from www.sysinternals.com). Once you have Vmware installed, as well as Ubuntu, you can also download Linux images for Novell/Suse, RedHat and literally dozens of other versions of Linux and Unix variants, some preconfigured for specific applications try them out and then throw them away. The only limits are your disc space. And to keep it Python related, I'll also ask, is there anything special I need to know about using Python on Linux? Do any things change, or can it be used just as I use it on Windows? The main difference is that it is much easier to install packages which are part of the Ubuntu distribution: just run up the package manager, select the ones to install and download and install happen automatically. -- http://mail.python.org/mailman/listinfo/python-list
simple string search and replace
hey guys, here's my code,
senders = [('460 (BODY[HEADER.FIELDS (FROM)] {46}', 'From: Friend
[EMAIL PROTECTED]\r\n\r\n'), ')', ('462 (BODY[HEADER.FIELDS
(FROM)] {37}', 'From: Kun [EMAIL PROTECTED]\r\n\r\n'), ')']
print senders
parsed_senders = []
sender =
for item in senders:
if isinstance(item,tuple):
item= ''.join(item)
if item==')':
parsed_senders.append(sender[sender.find('')+1:].strip())
sender =
else:
sender+=item
print parsed_senders
wondering if anyone knows how i can remove the ''s from the list, which
outputs to something like ['[EMAIL PROTECTED]', '[EMAIL PROTECTED]']
--
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(not really) randon ideas
I have been programming in Python for many years, and I generally have run into alot of the same problems repeatedly. What is the consensus on these ideas please? * enums * constants * an imagefile ala smalltalk * symbols ala lisp/scheme thx in advance -- http://mail.python.org/mailman/listinfo/python-list
Re: a somewhat off-topic question about linux
Duncan Booth wrote: John Salerno wrote: I'm interested in trying out Linux, probably Ubuntu, but I was wondering which distribution you guys like to use (because it's a pain trying to decide!) and you guys are smart. If you just want to try out Linux then a very easy way is to use VMWare Player: download it from http://www.vmware.com/products/player/. You can then run almost any Linux you wish directly on your windows system, no need to reboot or anything. Start with Browser Appliance which is a cut-down installation of Ubuntu (but it is configured so that things like the clipboard interact properly with Windows clipboard, and you can share files by sharing folders on windows and connecting to them from Ubuntu). Then you can use the package manager (on the System menu) to install Python and other packages (when it asks for a password use 'vmware' if you are using the default 'vmware' user). You need about 2Gb of free disk space to install and use VMWare and Browser appliance: all of the Linux file system is stored in one file which expands as required up to 9.5Gb maximum (it helps performance if you keep the file defragmented: use contig.exe from www.sysinternals.com). Once you have Vmware installed, as well as Ubuntu, you can also download Linux images for Novell/Suse, RedHat and literally dozens of other versions of Linux and Unix variants, some preconfigured for specific applications try them out and then throw them away. The only limits are your disc space. And to keep it Python related, I'll also ask, is there anything special I need to know about using Python on Linux? Do any things change, or can it be used just as I use it on Windows? The main difference is that it is much easier to install packages which are part of the Ubuntu distribution: just run up the package manager, select the ones to install and download and install happen automatically. Thanks! -- http://mail.python.org/mailman/listinfo/python-list
is mysqlsb compatible with MySQL 5.0?
My web server told me it isn't, which is why they are sticking with MySQL 4.0 for now, but I'm obsessed with using the latest versions, so I just want to be sure. According to the mysqldb download page at sourceforge, it is compatible with 5.0 Thanks. -- http://mail.python.org/mailman/listinfo/python-list
Re: simple string search and replace
Generally, to remove a substring (like ) from a string you can use the replace method (that returns a new string): s = ...anon.wharton.com... s.replace(, ) '...anon.wharton.com...' You can use it with something like: print [s.replace(, ) for s in parsed_senders] or you can put the replace() somewhere in the main loop. Probably to solve your problem there are other solutions, like using a RE to find email addresses inside the string... Bye, bearophile -- http://mail.python.org/mailman/listinfo/python-list
Re: Why are so many built-in types inheritable?
Kent Johnson [EMAIL PROTECTED] wrote: You could do this with a simple decorator: http://wiki.python.org/moin/PythonDecoratorLibrary#head-d4ce77c6d6e75aad25baf982f6fec0ff4b3653f4 or I think your class PrintingFunction would work as class PrintingFunction(object): def __init__(self, func): self.func = func def __call__(self, *args, **kwargs): print args, kwargs return self.func(*args, **kwargs) The problem with this is that the func_code attribute would contain the code of PrintingFunction instead of func. What I wanted to do, is to keep the original behaviour, i.e. set the variable __metaclass__ to DebugMeta and so get debug output, without changing a function and getting the original function's code object by the func_code attribute, not PrintigFunction's one. That's why I *must* inherit from type 'function'. Greetings, F. Sidler -- http://mail.python.org/mailman/listinfo/python-list
using regex to pull out email addresses
i have a regular expression that searches a string and plucks out email
addresses however it doesn't work for email addresses w/a subdomain e.g.
[EMAIL PROTECTED]
emails = re.findall('([EMAIL PROTECTED])', senderlist) -- my code
is there any way to modify that to include email addresses that also
have subdomains?
--
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Re: is mysqlsb compatible with MySQL 5.0?
Yes! It does. Assuming that you are not terribly bandwidth constrained, isn't it easier for you to try it yourself on your own machine than wait for other people to assure you, given that both are free and pretty much run on any platform? -- http://mail.python.org/mailman/listinfo/python-list
noobie mkdir problem/question
Hi,
I'm trying to write a script that will create a new directory and then
write the results to this newly created directory but it doesn't seem
to work for me and I don't know why. I'm hoping someone can see my
mistake or at least point me in the right direction.
I start like this capturing the root directory and making my new
xrefs directory (I can see the new folder in windows explorer):
root = raw_input(Enter the path where the program should run: )
xrefs = os.path.join(root,'xrefs')
if (os.path.isdir(xrefs) == 0):
os.mkdir(xrefs)
else:
sys.exit('LOG folder already exists. Exiting program.')
...I do everything else...
And then I'm trying to write the results out to xrefs. But instead of
writing to xrefs they're written to the original directory, i.e., root.
and I'm not sure why.
outputFname = given + '.log'
outputFile = open(os.path.join(xrefs,outputFname), 'w')
outputFile.write(data)
outputFile.close()
Anyone?
Thanks,
Greg
--
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Re: HIRING: PHP Developer
[EMAIL PROTECTED] wrote: From: In Need - view profile Date: Fri, Mar 24 2006 10:39 pm Email: In Need [EMAIL PROTECTED] Groups: hfx.forsale Not yet ratedRating: show options Reply | Reply to Author | Forward | Print | Individual Message | Show original | Report Abuse | Find messages by this author We are hiring a PHP developer! The site must contain the following: - database - administrator panel (implementing multiple employee logins / permissions) - credit card / paypal processing - affiliate program - news scripting control panel - image design - coupons / discounts, gift certificates - customer log in / log out - specials page - contests - forum Would like to have: - flash design - various language support - pages that have pre-loaded data (click the link and no new page opens within the main frame. Simply brings the information forward). The individual(s) that are selected for this project will have the opportunity to remain our company's web and image designer(s). Please send a price quote for the above mentioned request, as well as a quote for a design similar to www.IGE.com to [EMAIL PROTECTED] Thank you. I want to buy a car. It must seat four people and be read. Please send quote. That's basically what you're asking for. No way would I ever make a quote to do a project based on this information. However, I can quote you an hourly rate for the design you can use to get a quote. -- == Remove the x from my email address Jerry Stuckle JDS Computer Training Corp. [EMAIL PROTECTED] == -- http://mail.python.org/mailman/listinfo/python-list
Re: (not really) randon ideas
In [EMAIL PROTECTED], oluoluolu wrote: I have been programming in Python for many years, and I generally have run into alot of the same problems repeatedly. What is the consensus on these ideas please? * enums There's a cookbook recipe: http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/413486 And a package in the Chesseshop: http://cheeseshop.python.org/pypi/enum/0.4.1 * constants People tend to write the names of constants all uppercase. Example:: ANSWER = 42 Ciao, Marc 'BlackJack' Rintsch -- http://mail.python.org/mailman/listinfo/python-list
Re: is mysqlsb compatible with MySQL 5.0?
Ravi Teja wrote: Yes! It does. Assuming that you are not terribly bandwidth constrained, isn't it easier for you to try it yourself on your own machine than wait for other people to assure you, given that both are free and pretty much run on any platform? Yeah, actually I went ahead and installed them both to try it out, but Norton Internet Security is causing huge problems with the MySQL setup. Even when I disable it, it won't let me get past the configuration steps. :( -- http://mail.python.org/mailman/listinfo/python-list
Re: using regex to pull out email addresses
senderlist=na nu [EMAIL PROTECTED] hu [EMAIL PROTECTED] [EMAIL PROTECTED] fa hu print [ s[0] for s in re.findall((\w+@(\w+\.)+\w+),senderlist) ] ['[EMAIL PROTECTED]', '[EMAIL PROTECTED]'] -- http://mail.python.org/mailman/listinfo/python-list
Re: pondering about the essence of types in python
gangesmaster wrote: let's start with a question: == class z(object): ... def __init__(self): ... self.blah=5 ... class x(object): ... def __init__(self): ... z.__init__(self) ... y=x() Traceback (most recent call last): File stdin, line 1, in ? File stdin, line 3, in __init__ TypeError: unbound method __init__() must be called with z instance as first argument (got x instance instead) == and the question is -- WHY? what is a type? generally speaking, if everything were an object, the type only defines the MRO (method resolution order) for that object. x.y first looks at the instance, then the class, then the parent classes, etc. (this was changed a little in python2.3 to something more complicated, but it's basically the same). you can see the mro like this: == class x(object): pass class y(x): pass class z(y): pass a=z() print a.__class__.mro() [class '__main__.z', class '__main__.y', class '__main__.x', type 'object'] == after all, if we stay out of builtin types, all python objects are dicts, which support chian-lookup according to the mro. and a method is just a function that takes the instance as a first argument. so why is all this type hassle necessary? if we've taken it that far already, then let's really go over the edge. I WANT TO DERIVE FROM INSTANCES. not only types. why? i'm the developer of rpyc (http://rpyc.sf.net), and i got a request from someone to add support for deriving from remote types. the concrete example he gave was quite silly, but after i thought about it a little, i said why not try? a little intro about rpyc: it gives you proxies (instances) to remote objects, which can be instances, functions, or classes. and that user wanted to do something like this: class my_frame(conn.modules.wx.Frame): ... so the client was actually creates the graphics on the server. not very usable, but why not? all it means is, when he does my_frame.xyz, python should add the remote type to the mro chain. not too bizar. but __mro__ is a readonly attribute, and deriving from instances is impossible (conn.modules.wx.Frame is a PROXY to the class)... and again -- WHY? these all look like INTENTIONAL limitations. someone went around and added type checks (which are NOT pythonic) into the cPython implementation. argh. why do that? so i thought -- let's be nasty. i created a function that creates a class that wraps an instance. very ugly. small children and peope with heart problems should close their eyes. def derive_from(obj): class cls(object): def __getattr(self, name): return getattr(obj, name) return cls class my_frame(derive_from(conn.modules.wx.Frame)): the actual implementation is quite more complex, but that shows the concept. so now i'm experimenting with that little shit. but then i came to the problem that methods check the type of the first argument... ARGH. dont check types. DONT. the whole point of duck-typing is you DONT CHECK THE TYPES. you just work with objects, and instead of TypeError you'd get AttribiuteError, which is much better. AAARRGGGHH. python is EVIL at the low level. the high-level is just fine, but when you try to go under the hood... you better go with an exorcist. Take a look at languages like Self. Self was actually the first prototype-based OO language. You could consider Javascript to be a prototype-based language as well. regards Steve -- Steve Holden +44 150 684 7255 +1 800 494 3119 Holden Web LLC/Ltd www.holdenweb.com Love me, love my blog holdenweb.blogspot.com -- http://mail.python.org/mailman/listinfo/python-list
Re: simple string search and replace
Kun wrote:
hey guys, here's my code,
senders = [('460 (BODY[HEADER.FIELDS (FROM)] {46}', 'From: Friend
[EMAIL PROTECTED]\r\n\r\n'), ')', ('462 (BODY[HEADER.FIELDS
(FROM)] {37}', 'From: Kun [EMAIL PROTECTED]\r\n\r\n'), ')']
print senders
parsed_senders = []
sender =
for item in senders:
if isinstance(item,tuple):
item= ''.join(item)
if item==')':
parsed_senders.append(sender[sender.find('')+1:].strip())
sender =
else:
sender+=item
print parsed_senders
wondering if anyone knows how i can remove the ''s from the list, which
outputs to something like ['[EMAIL PROTECTED]', '[EMAIL PROTECTED]']
Where you append to parsed_senders, replace
sender[sender.find('')+1:]
with
sender[sender.find('')+1:-1]
and that will use a string one shorter, omitting the character.
regards
Steve
--
Steve Holden +44 150 684 7255 +1 800 494 3119
Holden Web LLC/Ltd www.holdenweb.com
Love me, love my blog holdenweb.blogspot.com
--
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sending emails to a list of recipients
i have the following code:
--
import smtplib
from email.MIMEText import MIMEText
fp = open('confirmation.txt', 'rb')
msg = MIMEText(fp.read())
From = '[EMAIL PROTECTED]'
msg['Subject'] = 'Purchase Confirmation'
msg ['From'] = From
msg['To'] = emails
s = smtplib.SMTP('.xxx.xxx.edu')
s.login('x','')
s.sendmail(msg['From'], msg['To'], msg.as_string())
s.close()
--
it works if msg['To'] = '[EMAIL PROTECTED]'
however, i'm trying to attach a list of emails named 'emails' to msg['To']
emails is in the following format: ['[EMAIL PROTECTED]', '[EMAIL PROTECTED]',
'[EMAIL PROTECTED]']
anyone have an idea how i can modify this script to work with sending a
list? note this is a snippet of a larger code, 'emails' is as a string
defined earlier.
--
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Re: sending emails to a list of recipients [update]
Kun wrote:
i have the following code:
--
import smtplib
from email.MIMEText import MIMEText
fp = open('confirmation.txt', 'rb')
msg = MIMEText(fp.read())
From = '[EMAIL PROTECTED]'
msg['Subject'] = 'Purchase Confirmation'
msg ['From'] = From
msg['To'] = emails
s = smtplib.SMTP('.xxx.xxx.edu')
s.login('x','')
s.sendmail(msg['From'], msg['To'], msg.as_string())
s.close()
--
it works if msg['To'] = '[EMAIL PROTECTED]'
however, i'm trying to attach a list of emails named 'emails' to msg['To']
emails is in the following format: ['[EMAIL PROTECTED]', '[EMAIL PROTECTED]',
'[EMAIL PROTECTED]']
anyone have an idea how i can modify this script to work with sending a
list? note this is a snippet of a larger code, 'emails' is as a string
defined earlier.
this is my error msg of leaving the code in its current state... (brave
yourself)
Traceback (most recent call last):
File /Tutorial/IMAP/scannermailer.py, line 41, in -toplevel-
s.sendmail(msg['From'], msg['To'], msg.as_string())
File
/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/email/Message.py,
line 129, in as_string
g.flatten(self, unixfrom=unixfrom)
File
/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/email/Generator.py,
line 82, in flatten
self._write(msg)
File
/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/email/Generator.py,
line 120, in _write
self._write_headers(msg)
File
/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/email/Generator.py,
line 166, in _write_headers
header_name=h, continuation_ws='\t').encode()
File
/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/email/Header.py,
line 395, in encode
return self._encode_chunks(newchunks, maxlinelen)
File
/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/email/Header.py,
line 355, in _encode_chunks
_max_append(chunks, s, maxlinelen, extra)
File
/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/email/quopriMIME.py,
line 79, in _max_append
L.append(s.lstrip())
AttributeError: 'list' object has no attribute 'lstrip'
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Re: (not really) randon ideas
regarding the constants, this is more for the vm (and type safety). actually enums, constants and symbols can prolly be implemented more or less the same. -- http://mail.python.org/mailman/listinfo/python-list
Re: __slots__
[EMAIL PROTECTED] (Alex Martelli) writes: [...] you should be using pychecker or pylint [...] I'm curious, as somebody who doesn't regularly use these tools: How do they fit into your workflow? Do you run them every few hours, every day, every time you run functional tests, every release, every so often, on gut feeling about when it's likely to catch problems...? How do you cope with spurious warnings? Does it involve tweaking code to quell warnings? Keeping suppression lists? Maintaining special invocations of pychecker / pylint per-project? Do they cope well with other people's code who do not use these tools? John -- http://mail.python.org/mailman/listinfo/python-list
Re: is mysqlsb compatible with MySQL 5.0?
Ah! An overzealous firewall! My sympathies :-). I am using the free Kerio personal firewall on Windows. -- http://mail.python.org/mailman/listinfo/python-list
Re: __slots__
John J. Lee [EMAIL PROTECTED] wrote: [EMAIL PROTECTED] (Alex Martelli) writes: [...] you should be using pychecker or pylint [...] I'm curious, as somebody who doesn't regularly use these tools: How do they fit into your workflow? Do you run them every few hours, every day, every time you run functional tests, every release, every so often, on gut feeling about when it's likely to catch problems...? I use them before mailing code off for review (which in our workflow is mandatory before the code is submitted into the codebase) -- not quite as often as unittests, which I run with just about every keystroke in my editor;-). I'd rather have such a tool run automatically, as a presubmit check, but that depends on convincing every colleague that it's worth it (probably hopeless for pychecker as long as it needs to i How do you cope with spurious warnings? Does it involve tweaking code to quell warnings? Keeping suppression lists? Maintaining special invocations of pychecker / pylint per-project? Do they cope well with other people's code who do not use these tools? If said other people's code, for example, does pointless (but hopefully innocuous, otherwise unittests would have caught that;-) things such as importing modules it never uses, the warning tools complain. I do not consider such complaints spurious, and prefer to fix those things (sending the brief codereview to the original author with advice to start using the checking tools -- it usually works;-). Very occasionally, there _are_ warnings which are indeed spurious: the typical example is a function which, to comply with a certain API, MUST take three arguments named exactly x, y, and z (no more, no less, not with any different names) but only needs x; in such cases, you do need to add, e.g., __pychecker__ = 'unusednames=y,z' I pay the price gladly, since this will also serve to reassure human readers that my code's anomalous behavior (accepting arguments y and z but ignoring them) is by design, and not an accident or mistake. I do just about the same thing with the lint variant we use for C++, btw. Alex -- http://mail.python.org/mailman/listinfo/python-list
Re: noobie mkdir problem/question
if (os.path.isdir(xrefs) == 0): os.mkdir(xrefs) os.path.isdir(stuff) returns True or False -- http://mail.python.org/mailman/listinfo/python-list
Re: sending emails to a list of recipients
Kun wrote:
i have the following code:
--
import smtplib
from email.MIMEText import MIMEText
fp = open('confirmation.txt', 'rb')
msg = MIMEText(fp.read())
From = '[EMAIL PROTECTED]'
msg['Subject'] = 'Purchase Confirmation'
msg ['From'] = From
msg['To'] = emails
s = smtplib.SMTP('.xxx.xxx.edu')
s.login('x','')
s.sendmail(msg['From'], msg['To'], msg.as_string())
s.close()
--
it works if msg['To'] = '[EMAIL PROTECTED]'
however, i'm trying to attach a list of emails named 'emails' to msg['To']
emails is in the following format: ['[EMAIL PROTECTED]', '[EMAIL PROTECTED]',
'[EMAIL PROTECTED]']
anyone have an idea how i can modify this script to work with sending a
list? note this is a snippet of a larger code, 'emails' is as a string
defined earlier.
maybe try : msg['To'] = ', '.join( emails )
taken from:
http://docs.python.org/lib/node597.html
Gerard
--
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Re: pondering about the essence of types in python
i was taking about python... -- http://mail.python.org/mailman/listinfo/python-list
Re: Accessing func_name from inside a function
James Thiele [EMAIL PROTECTED] writes: I'd like to access the name of a function from inside the function. A function, like most other objects in Python, can have any number of names bound to it without the object being informed. Any of those names can then be used to reference the object, and the object has no way of knowing by what name it was referenced. Because of this fallacy, it's generally considered bad programming style to want to know the name of the current object from inside that object. What is it you're trying to achieve? -- \ Unix is an operating system, OS/2 is half an operating system, | `\ Windows is a shell, and DOS is a boot partition virus. -- | _o__) Peter H. Coffin | Ben Finney -- http://mail.python.org/mailman/listinfo/python-list
Re: __slots__
John J. Lee wrote: [EMAIL PROTECTED] (Alex Martelli) writes: you should be using pychecker or pylint I'm curious, as somebody who doesn't regularly use these tools: How do they fit into your workflow? Do you run them every few hours, every day, every time you run functional tests, every release, every so often, on gut feeling about when it's likely to catch problems...? I use pychecker when I have finished a chunk of work that is supposed to be syntactically correct, but before I try any unit testing. Think of it as an optional step that takes the place of running the compiler in statically-typed language development. I use pytchecker again before I release anything, just to be sure. How do you cope with spurious warnings? Does it involve tweaking code to quell warnings? Keeping suppression lists? Suppression lists work for me. From http://pychecker.sourceforge.net/ *** begin quote *** You can also define suppressions in your code by doing: __pychecker__ = 'no-namedargs maxreturns=0 unusednames=foo,bar' *** end quote *** Do they cope well with other people's code who do not use these tools? pychecker complains a lot when used on code that is poorly written and includes bad practices such as using builtin function names as local variable names. I consider pychecker's complaints in these cases to be a *feature*. -- Ben Caradoc-Davies [EMAIL PROTECTED] http://wintersun.org/ Those who deny freedom to others deserve it not for themselves. - Abraham Lincoln -- http://mail.python.org/mailman/listinfo/python-list
Re: noobie mkdir problem/question
I understand that but I'm still puzzled. Is this the reason why I can't write files to this directory? The xrefs directory is created the way I expect it would be using mkdir but I can't seem to write to it. I thought that my results would be written to the xrefs directory here but they're ending up in the original folder not the subfolder. outputFile = open(os.path.join(xrefs,outputFname), 'w') outputFile.write(data) outputFile.close() What am I missing? [EMAIL PROTECTED] wrote: if (os.path.isdir(xrefs) == 0): os.mkdir(xrefs) os.path.isdir(stuff) returns True or False -- http://mail.python.org/mailman/listinfo/python-list
Re: Beginner's question: executing scripts under Win XP pro
Scott Souva [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] Your script may be working properly, but XP simply removes the window after the script runs. Here is a simple fix that will stop at the end of the script and leave the Command window open: print Hello World raw_input() That'll work (it waits for input from the user, and, as soon as it receives it shuts down the window). Another way to do it is instead of doubleclicking on the script, open a command prompt window (StartRuncmd OR StartProgramsAccessoriesCommand Prompt) then type 'python test.py' at the prompt. Now the window stays open until you specifically close it and you can rerun the script many times. HTH, JC -- http://mail.python.org/mailman/listinfo/python-list
Re: years later DeprecationWarning
On Wed, 22 Mar 2006 13:59:00 -0800, Chris Lasher wrote: Two things: 1) math.floor returns a float, not an int. Doing an int() conversion on a float already floors the value, anyways. No it doesn't, or rather, int() is only equivalent to floor() if you limit the input to non-negative numbers: int(-2.2) = -2, but floor(-2.2) should give -3. The standard definition of floor() and ceil() are: floor(x) = maximum integer n such that n = x ceil(x) = minimum integer n such that n = x or as Python functions: def floor(x): Returns the maximum integer less than or equal to x if x = 0: return int(x) else: if x % 1: return int(x)-1 else: return int(x) def ceil(x): Returns the minimum integer greater than or equal to x return -floor(-x) or even simpler: from math import floor, ceil (Caution: the functions defined in the math module return the floor and ceiling as floats, not int, so you may want to wrap them in a call to int.) -- Steven. -- http://mail.python.org/mailman/listinfo/python-list
Re: Why are so many built-in types inheritable?
25 Mar 2006 13:58:17 -0800, Ziga Seilnacht [EMAIL PROTECTED]: No, you don't have to: Okay, but I'd prefer! ;) [a lot of python code] That's what I wanted to avoid. Additionally, the possibility to do it this way doesn't make it reasonable that type 'function' is inheritable. Are there any reasons for that? Greetings, F.Sidler -- http://mail.python.org/mailman/listinfo/python-list
Re: sending emails to a list of recipients [update]
smtplib docs http://python.active-venture.com/lib/SMTP-example.html
say that the to should be a list of addresses (your emails);
s.sendmail(msg['From'], emails, msg.as_string())
-Larry Bates
Kun wrote:
Kun wrote:
i have the following code:
--
import smtplib
from email.MIMEText import MIMEText
fp = open('confirmation.txt', 'rb')
msg = MIMEText(fp.read())
From = '[EMAIL PROTECTED]'
msg['Subject'] = 'Purchase Confirmation'
msg ['From'] = From
msg['To'] = emails
s = smtplib.SMTP('.xxx.xxx.edu')
s.login('x','')
s.sendmail(msg['From'], msg['To'], msg.as_string())
s.close()
--
it works if msg['To'] = '[EMAIL PROTECTED]'
however, i'm trying to attach a list of emails named 'emails' to
msg['To']
emails is in the following format: ['[EMAIL PROTECTED]',
'[EMAIL PROTECTED]', '[EMAIL PROTECTED]']
anyone have an idea how i can modify this script to work with sending
a list? note this is a snippet of a larger code, 'emails' is as a
string defined earlier.
this is my error msg of leaving the code in its current state... (brave
yourself)
Traceback (most recent call last):
File /Tutorial/IMAP/scannermailer.py, line 41, in -toplevel-
s.sendmail(msg['From'], msg['To'], msg.as_string())
File
/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/email/Message.py,
line 129, in as_string
g.flatten(self, unixfrom=unixfrom)
File
/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/email/Generator.py,
line 82, in flatten
self._write(msg)
File
/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/email/Generator.py,
line 120, in _write
self._write_headers(msg)
File
/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/email/Generator.py,
line 166, in _write_headers
header_name=h, continuation_ws='\t').encode()
File
/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/email/Header.py,
line 395, in encode
return self._encode_chunks(newchunks, maxlinelen)
File
/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/email/Header.py,
line 355, in _encode_chunks
_max_append(chunks, s, maxlinelen, extra)
File
/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/email/quopriMIME.py,
line 79, in _max_append
L.append(s.lstrip())
AttributeError: 'list' object has no attribute 'lstrip'
--
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Re: noobie mkdir problem/question
First, what version of python are you using? 2.4.2 (and some previous versions) use file() instead of open(), although open may still work. also, if your code in the previous post is still using: outputFname = given + '.log' outputFile = open(os.path.join(xrefs,outputFname), 'w') I hope you have 'given' defined somewhere, since it's not in the code you show. give this a try: output = file(xrefs + r'\filenamewhatever', 'w') output.write(data) output.close() -- http://mail.python.org/mailman/listinfo/python-list
