Re: PIL: The _imaging C module is not installed
I had this happening to me as well someday. I recall that first installing it (python setup.py install), and then rerunning selftest, solved that error. I tried that as well. Here is the summary of the install process: build/temp.linux-x86_64-2.4/libImaging/ZipEncode.o -L/usr/local/lib -L/usr/lib -ljpeg -lz -o build/lib.linux-x86_64-2.4/_imaging.so /usr/bin/ld: skipping incompatible /usr/lib/libpthread.so when searching for -lpthread /usr/bin/ld: skipping incompatible /usr/lib/libpthread.a when searching for -lpthread /usr/bin/ld: skipping incompatible /usr/lib/libc.so when searching for -lc /usr/bin/ld: skipping incompatible /usr/lib/libc.a when searching for -lc building '_imagingft' extension gcc -pthread -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -fPIC -I/usr/include/freetype2 -IlibImaging -I/usr/local/include -I/usr/include -I/usr/local/include/python2.4 -c _imagingft.c -o build/temp.linux-x86_64-2.4/_imagingft.o gcc -pthread -shared build/temp.linux-x86_64-2.4/_imagingft.o -L/usr/local/lib -L/usr/lib -lfreetype -o build/lib.linux-x86_64-2.4/_imagingft.so /usr/bin/ld: skipping incompatible /usr/lib/libfreetype.so when searching for -lfreetype /usr/bin/ld: skipping incompatible /usr/lib/libpthread.so when searching for -lpthread /usr/bin/ld: skipping incompatible /usr/lib/libpthread.a when searching for -lpthread /usr/bin/ld: skipping incompatible /usr/lib/libc.so when searching for -lc /usr/bin/ld: skipping incompatible /usr/lib/libc.a when searching for -lc building '_imagingmath' extension gcc -pthread -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -fPIC -I/usr/include/freetype2 -IlibImaging -I/usr/local/include -I/usr/include -I/usr/local/include/python2.4 -c _imagingmath.c -o build/temp.linux-x86_64-2.4/_imagingmath.o gcc -pthread -shared build/temp.linux-x86_64-2.4/_imagingmath.o -L/usr/local/lib -L/usr/lib -o build/lib.linux-x86_64-2.4/_imagingmath.so /usr/bin/ld: skipping incompatible /usr/lib/libpthread.so when searching for -lpthread /usr/bin/ld: skipping incompatible /usr/lib/libpthread.a when searching for -lpthread /usr/bin/ld: skipping incompatible /usr/lib/libc.so when searching for -lc /usr/bin/ld: skipping incompatible /usr/lib/libc.a when searching for -lc PIL 1.1.7 SETUP SUMMARY version 1.1.7 platform linux2 2.4.6 (#1, Mar 16 2011, 11:33:33) [GCC 4.1.2 20080704 (Red Hat 4.1.2-48)] *** TKINTER support not available --- JPEG support available --- ZLIB (PNG/ZIP) support available --- FREETYPE2 support available *** LITTLECMS support not available To add a missing option, make sure you have the required library, and set the corresponding ROOT variable in the setup.py script. To check the build, run the selftest.py script. running build_scripts creating build/scripts-2.4 copying Scripts/pilfont.py - build/scripts-2.4 copying and adjusting Scripts/pilconvert.py - build/scripts-2.4 copying and adjusting Scripts/pilfile.py - build/scripts-2.4 copying and adjusting Scripts/pilprint.py - build/scripts-2.4 copying and adjusting Scripts/pildriver.py - build/scripts-2.4 changing mode of build/scripts-2.4/pilfont.py from 644 to 755 changing mode of build/scripts-2.4/pilconvert.py from 644 to 755 changing mode of build/scripts-2.4/pilfile.py from 644 to 755 changing mode of build/scripts-2.4/pilprint.py from 644 to 755 changing mode of build/scripts-2.4/pildriver.py from 644 to 755 running install_lib copying build/lib.linux-x86_64-2.4/_imagingft.so - /usr/local/lib/python2.4/site-packages/PIL copying build/lib.linux-x86_64-2.4/_imagingmath.so - /usr/local/lib/python2.4/site-packages/PIL copying build/lib.linux-x86_64-2.4/_imaging.so - /usr/local/lib/python2.4/site-packages/PIL running install_scripts copying build/scripts-2.4/pilconvert.py - /usr/local/bin copying build/scripts-2.4/pilfile.py - /usr/local/bin copying build/scripts-2.4/pilprint.py - /usr/local/bin copying build/scripts-2.4/pildriver.py - /usr/local/bin changing mode of /usr/local/bin/pilfont.py to 755 changing mode of /usr/local/bin/pilconvert.py to 755 changing mode of /usr/local/bin/pilfile.py to 755 changing mode of /usr/local/bin/pilprint.py to 755 changing mode of /usr/local/bin/pildriver.py to 755 creating /usr/local/lib/python2.4/site-packages/PIL.pth $ python selftest.py *** The _imaging C module is not installed Regards Nico -- http://mail.python.org/mailman/listinfo/python-list
Re: Python-list Digest, Vol 92, Issue 40
PIL will compile and install if you don't have some development libraries and then simply not work or not work up to full steam when used. To avoid this, you need to install the appropriate libraries, among which are: libjpeg-devel freetype-devel libpng-devel Dear Albert Thank you for your reply. I did install all these libraries. Testing it with yum shows: $ yum install libpng-devel Package 2:libpng-devel-1.2.10-7.1.el5_5.3.x86_64 already installed and latest version Package 2:libpng-devel-1.2.10-7.1.el5_5.3.i386 already installed and latest version $ yum install libjpeg-devel Package libjpeg-devel-6b-37.x86_64 already installed and latest version Package libjpeg-devel-6b-37.i386 already installed and latest version $ yum install libpng-devel Package 2:libpng-devel-1.2.10-7.1.el5_5.3.x86_64 already installed and latest version Package 2:libpng-devel-1.2.10-7.1.el5_5.3.i386 already installed and latest version Re-Compiling PIL shows: $ python setup.py build_ext -i *** TKINTER support not available --- JPEG support available --- ZLIB (PNG/ZIP) support available --- FREETYPE2 support available *** LITTLECMS support not available However, running the selftest still fails: $ python selftest.py *** The _imaging C module is not installed Regards Nico -- http://mail.python.org/mailman/listinfo/python-list
Re: PIL: The _imaging C module is not installed
PIL will compile and install if you don't have some development libraries and then simply not work or not work up to full steam when used. To avoid this, you need to install the appropriate libraries, among which are: libjpeg-devel freetype-devel libpng-devel Dear Albert Thank you for your reply. I did install all these libraries. Testing it with yum shows: $ yum install libpng-devel Package 2:libpng-devel-1.2.10-7.1.el5_5.3.x86_64 already installed and latest version Package 2:libpng-devel-1.2.10-7.1.el5_5.3.i386 already installed and latest version $ yum install libjpeg-devel Package libjpeg-devel-6b-37.x86_64 already installed and latest version Package libjpeg-devel-6b-37.i386 already installed and latest version $ yum install libpng-devel Package 2:libpng-devel-1.2.10-7.1.el5_5.3.x86_64 already installed and latest version Package 2:libpng-devel-1.2.10-7.1.el5_5.3.i386 already installed and latest version Re-Compiling PIL shows: $ python setup.py build_ext -i *** TKINTER support not available --- JPEG support available --- ZLIB (PNG/ZIP) support available --- FREETYPE2 support available *** LITTLECMS support not available However, running the selftest still fails: $ python selftest.py *** The _imaging C module is not installed Regards Nico -- http://mail.python.org/mailman/listinfo/python-list
PIL: The _imaging C module is not installed
Hi there I am having trouble to install PIL 1.1.7 on CentOS. I read and followed the instructions from http://effbot.org/zone/pil-imaging-not-installed.htm However, I still get the The _imaging C module is not installed error if I run the selftest: $ python selftest.py *** The _imaging C module is not installed Here is what I have tested so far: 1.) $ python -v ... import Image ... dlopen(/usr/local/lib/python2.4/site-packages/PIL/_imaging.so, 2); import _imaging # dynamically loaded from /usr/local/lib/python2.4/site-packages/PIL/_imaging.so ... 2.) $ python ... import _imaging ...success imported! Any idea what might be wrong? Regards Nico -- http://mail.python.org/mailman/listinfo/python-list
Build unordered list in HTML from a python list
Dear list members
I have this python list that represets a sitemap:
tree = [{'indent': 1, 'title':'Item 1', 'hassubfolder':False},
{'indent': 1, 'title':'Item 2', 'hassubfolder':False},
{'indent': 1, 'title':'Folder 1', 'hassubfolder':True},
{'indent': 2, 'title':'Sub Item 1.1', 'hassubfolder':False},
{'indent': 2, 'title':'Sub Item 1.2', 'hassubfolder':False},
{'indent': 1, 'title':'Item 3', 'hassubfolder':False},
{'indent': 1, 'title':'Folder 2', 'hassubfolder':True},
{'indent': 2, 'title':'Sub Item 2.1', 'hassubfolder':False},
{'indent': 2, 'title':'Folder 2.1', 'hassubfolder':True},
{'indent': 3, 'title':'Sub Item 2.1.1', 'hassubfolder':False},
{'indent': 3, 'title':'Sub Item 2.1.2', 'hassubfolder':False},
]
From that list I want to create the following HTML code:
ul id=tree
liItem 1/li
liItem 2/li
liFolder 1
ul
liSub Item 1.1/li
liSub Item 1.2/li
/ul
/li
liItem 3/li
liFolder 2
ul
liSub Item 2.1/li
liFolder 2.1
ul
liSub Item 2.1.1/li
liSub Item 2.1.2/li
/ul
/li
/ul
/li
/ul
If an item of the list has 'True' for the 'hassubfolder' key than a new
ulli must be created instead of /li after its title. (See
Folder 2 node in the HTML code above.
My problem is: How do I keep track of the closing tags while iterating
over the python list?
Any help is much appreciated.
Regards
Nico
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Re: Build unordered list in HTML from a python list
Use a stack? Whenever you start a new list, push the corresponding closing tag onto a stack. Whenever your indent level decreases, pop the stack and write out the closing tag you get. It's straightforward to use a python list as a stack. Thanks for the tip, Kushal. Do you have a short code example for me? Regards Nico -- http://mail.python.org/mailman/listinfo/python-list
Sort list of dictionaries by key (case insensitive)
Hi there
I have the following list 'mylist' that contains some dictionaries:
mylist = [{'title':'the Fog', 'id':1},
{'title':'The Storm', 'id':2},
{'title':'the bible', 'id':3},
{'title':'The thunder', 'id':4}
]
How I can sort (case insensitive) the list by the dictioary's 'title' key?
The result should be this list:
[{'title':'the bible', 'id':3},
{'title':'the Fog', 'id':1},
{'title':'The Storm', 'id':2},
{'title':'The thunder', 'id':4}
]
I am using Python 2.4.
Regards,
Nico
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Re: Sort list of dictionaries by key (case insensitive)
Er, that should have been mylist.sort(key = lambda d: d['title'].lower()) of course. Thanks a lot for the tip, chris. Unfortunately, I only have Python 2.3.5 installed and can't upgrade to 2.4 due to an underliying application server. In python 2.3 the 'sort()' function does not excepts any keywords arguments (TypeError: sort() takes no keyword arguments), so is there a workaround? Regards Nico -- http://mail.python.org/mailman/listinfo/python-list
Re: Sort list of dictionaries by key (case insensitive)
Thanks a lot Stefan Peter.
I'm almost there (except sorting of umlauts does not work yet).
import locale
def sorted(items, key):
decorated = [(key(item), index, item) for index, item in
enumerate(items)]
decorated.sort()
return [item[2] for item in decorated]
items = [{'title':'the Ähnlich', 'id':1},
{'title':'The Storm', 'id':2},
{'title':'the bible','id':3},
{'title':'The thunder', 'id':4}]
print sorted(items, key=lambda d: locale.strxfrm(d.get('title')))
- [{'id': 2, 'title': 'The Storm'}, {'id': 4, 'title': 'The thunder'},
{'id': 3, 'title': 'the bible'}, {'id': 1, 'title': 'the \xc4hnlich'}]
The entry with the umlaut is the last item in but according to german
umlaut rules it should be the first item in the result.
Do I have to set anything with the locale module?
Regards
Nico
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Re: Sort list of dictionaries by key (case insensitive)
http://wiki.python.org/moin/HowTo/Sorting#Topicstobecovered Works fine. Thanks a lot for your help, Stefan. Regards Nico -- http://mail.python.org/mailman/listinfo/python-list
Re: ftplib timeout in Python 2.4
Try the timelimited function from this recipe http://code.activestate.com/recipes/576780/ Works perfect! Thanks a lot, Jean! -- http://mail.python.org/mailman/listinfo/python-list
ftplib timeout in Python 2.4
Hi there, The ftplib has a timeout parameter in Python 2.6 and above. Is there a way to set a timeout in Python 2.4? Regards Nico -- http://mail.python.org/mailman/listinfo/python-list
Re: ftplib timeout in Python 2.4
I don't know of one so you may need a workaround. What platforms do you need to support? Suse Linux Enterprise 10, 64 Bit with Python 2.4.4. I need the Python 2.4.4 for a running application Server (Zope). -- http://mail.python.org/mailman/listinfo/python-list
Re: List of paths
Here's a tricky case that doesn't show up in your example: In each case above, the directory names are distinct. how about: ['/desk', '/desk/ethanallen', '/desk/ikea', '/desktop', /desktop/pc', '/desktop/mac'] Should the answer be ['/desk'] or ['/desk', '/desktop'] ? Hi Scott good point. It should be: ['/desk', '/desktop'] -- http://mail.python.org/mailman/listinfo/python-list
List of paths
Dear Python developers I have the following (sorted) list. ['/notebook', '/notebook/mac', '/notebook/mac/macbook', '/notebook/mac/macbookpro', '/notebook/pc', '/notebook/pc/lenovo', '/notebook/pc/hp', '/notebook/pc/sony', '/desktop', '/desktop/pc/dell', '/desktop/mac/imac', '/server/hp/proliant', '/server/hp/proliant/385', '/server/hp/proliant/585' ] I want to remove all paths x from the list if there is a path y in the list which is part of x so y.startswith(x) is true. The list I want to have is: ['/notebook', '/desktop', '/server/hp/proliant'] Any idea how I can do this in Python? Thanks in advance Nico -- http://mail.python.org/mailman/listinfo/python-list
Re: List of paths
May be not so much pythonic, but works for i in range(len(q)): for x in q[i:]: if x.startswith(q[i]) and x!=q[i]: q.remove(x) ...but works fine. Thanks, Eugene. Also thanks to Andrew. Your example works fine, too. Thanks to remind me of the 'yield' statement! ;-) Regards Nico -- http://mail.python.org/mailman/listinfo/python-list
Rebuild list of objects with redundancies on objects' attribute
Hi there I have a list of dummy objects which have the attributes 'location', 'name', 'gender'. Now I want to rebuild this list in order to avoid redundancies on objects with the same 'location'. Example: #-- class Dummy: pass a = Dummy() a.location = 'tokio' a.name = 'john' a.gender = 'm' b = Dummy() b.location = 'tokio' b.name = 'peter' b.gender = 'm' c = Dummy() c.location = 'madrid' c.name = 'susan' c.gender = 'f' d = Dummy() d.location = 'london' d.name = 'alex' d.gender = 'm' persons = [a, b, c, d] print loc name gender print - for obj in persons: print %s - %s - %s % (obj.location, obj.name, obj.gender) #-- The output reads like this: loc name gender - tokio john m tokio peter m madrid susan f london alex m I want to create this list (where name and gender are lists): loc name gender - tokio[john, peter] [m] madrid [susan] [f] london [alex][m] How can I do this? Thanks in advance. Nico -- http://mail.python.org/mailman/listinfo/python-list
Find Replace hyperlinks in a string
Hi there, I have a string containing some hyperlinks. I'd like to replace every hyperlink with a HTML style link. Example: Replace 'http://www.foo.com/any_url' with 'a href=http://www.foo.com/any_url;http://www.foo.com/any_url/a' What's the best way to do this if I have a few hundret strings to check? Thanks in advance, Nico -- http://mail.python.org/mailman/listinfo/python-list
How to use unix_md5_crypt from Perl in Python?
Dear list members,
I have a Perl script which crypts a password using a clearteaxt password
and a username.
Example:
username = '[EMAIL PROTECTED]'
password = 'root'
The crypted password is: 'roK20XGbWEsSM'
The crypted password always starts with the first 2 characters of the
username (here: 'ro' from '[EMAIL PROTECTED]').
The Perl script contains this code and I am wondering how I can do this
in Python:
#
my $CryptedPw = '';
# md5 pw
if ($Self-{ConfigObject}-Get('AuthModule::DB::CryptType')
$Self-{ConfigObject}-Get('AuthModule::DB::CryptType') eq 'md5') {
$CryptedPw = unix_md5_crypt($Pw, $Param{UserLogin});
}
# crypt pw
else {
# crypt given pw (unfortunately there is a mod_perl2 bug
# on RH8 - check if
# crypt() is working correctly) :-/
if (crypt('root', '[EMAIL PROTECTED]') eq 'roK20XGbWEsSM') {
$CryptedPw = crypt($Pw, $Param{UserLogin});
}
else {
$Self-{LogObject}-Log(
Priority = 'notice',
Message = The crypt() of your mod_perl(2) is not working
correctly! Update mod_perl!,
);
my $TempUser = quotemeta($Param{UserLogin});
my $TempPw = quotemeta($Pw);
my $CMD = perl -e \print crypt('$TempPw', '$TempUser');\;
open (IO, $CMD | ) || print STDERR Can't open $CMD: $!;
while (IO) {
$CryptedPw .= $_;
}
close (IO);
chomp $CryptedPw;
}
}
#
What do I have to do in Python to create the crypted password
'roK20XGbWEsSM' by using '[EMAIL PROTECTED]' for username and 'root' for
password?
I tried:
username = '[EMAIL PROTECTED]'
password = 'root'
import crypt
crypt.crypt(username, password)
'roowueH.vq6VM'
This creates 'roowueH.vq6VM' but not 'roK20XGbWEsSM'. :-(
Thanks in advance,
Nico
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Python's email module - problem with umlauts in some email clients
Hi there,
I wrote a short python script that sends an email using python's email
module and I am using Python 2.3.5.
The problem is, that umlauts are not displayed properly in some email
clients:
+ On a windows machine running thunderbird 1.0.2 umlauts are displayed
properly.
The email header contains Content-type: text/plain; charset=utf-8
so the email client's character encoding automatically switches to
Unicode (UTF-8)
+ On a solaris machine running thunderbird 1.5.0.8 and on a macintosh
machine running eudora umlauts are *not* displayed properly.
The email header does not contain any Content-type. If I manually
switch the email client's character encoding to Unicode (UTF-8), the
umlauts are displayed properly. Therefore, I guess it has something to
do with the missing Content-type: text/plain; charset=utf-8
information in the email header.
Any idea why the Content-type: text/plain; charset=utf-8 is missing?
Here is my script:
#--
# send email
from email.Header import Header
import email.Message
import email.Utils
import mimetypes
from smtplib import SMTP
host = 'mail.example.com'
mFrom = '[EMAIL PROTECTED]'
mTo = '[EMAIL PROTECTED]'
mSubj = u'f\xfcr'
mBody = u'f\xfcr foo bar'
mBody = mBody.encode('UTF-8')
mainMsg = email.Message.Message()
mainMsg['From'] = mFrom
mainMsg['To'] = mTo
mainMsg['Subject'] = mSubj
mainMsg.set_payload(mBody)
mainMsg['Date'] = email.Utils.formatdate(localtime=1)
mainMsg['Message-ID'] = email.Utils.make_msgid()
mainMsg['Mime-version'] = '1.0'
mainMsg['Content-type'] = 'text/plain; charset=utf-8'
mainMsg['Content-transfer-encoding'] = '8bit'
# 'quoted-printable' does not work either
# mainMsg['Content-Transfer-Encoding'] = 'quoted-printable'
s = SMTP(host)
s.sendmail(mFrom, [mTo], mainMsg.as_string())
s.close()
#--
Regards,
Nico
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ldapsearch example in python-ldap?
Hi there, on a linux machine I am running this ldapsearch from the command line: ldapsearch -x -h myldaphost.mydomain.com \ -D CN=ldapuser,CN=Users,DC=mydomain,DC=com -w secret \ -b CN=ANYCOMPUTER,CN=Computers,DC=mydomain,DC=com How can I do this with python-ldap? Regards, Nico -- http://mail.python.org/mailman/listinfo/python-list
PIL on Python 2.4 - ImportError: No module named _imagingft
Dear list members, I have installed Python 2.4.3. and PIL 1.1.5. on a Suse Linux 10 64 Bit machine. If I try import _imagingft I get this error: ImportError: No module named _imagingft Did I miss something? On my 32 But Linux with Python 2.3.5. everything works fine. Kind regards, Nico -- http://mail.python.org/mailman/listinfo/python-list
Re: PIL on Python 2.4 - ImportError: No module named _imagingft [Solved]
If I try import _imagingft I get this error: ImportError: No module named _imagingft Did I miss something? Yes, I did. Somehow, there was no _imagingft.so in the PIL directory. -- http://mail.python.org/mailman/listinfo/python-list
Convert binary image to JPEG with 72 dpi
Dear list members,I have the binary content of an image file and it's filename.I neither know the resolution nor the dpi of the image.No I need to convert this binary content into a 72 dpi jpeg image. Furthermore I have to resize the image so neither the width nor the height is bigger than 250 pixels. I'd like to use PIL for this job. Any tips how to do it?Regards, Nico -- http://mail.python.org/mailman/listinfo/python-list
Re: Installing Python on a 64-Bit OS
Several changes have been made to Python 2.4 and 2.5 to support AMD64-Linux better, and not all of these changes have been incorporated into Python 2.3, as this software is no longer maintained. As others have said: you should really try to use the python 2.4 that comes with the operating system. Can you share the reason why you have to use Python 2.3? I actually should use the Python 2.3.5 for an application server called Zope and a Zope product that officially does not support the latest Zope version yet. The latest stable Zope version requires Python 2.4.2 so I'll installed Python 2.4.3. and I am trying to get it running. Thanks for the tips. Nico -- http://mail.python.org/mailman/listinfo/python-list
Installing Python on a 64-Bit OS
Hi there, I'd like to install Python 2.3.5. on a 64-Bit OS (Suse Linux Enterprise Server 10) on an AMD Opteron 64-Bit machine. I have to use Python 2.3.5. Do I need a special source archive or can I use Python-2.3.5.tgz from http://www.python.org/ftp/python/2.3.5/Python-2.3.5.tgz ? Is there anything special I have to care about or is installing Python on a 64 Bit OS just as easy as installing it on a 32-Bit OS? Regards, Nico -- http://mail.python.org/mailman/listinfo/python-list
Re: Searching a string and extract all occurancies of a substring
is this XML, or just something that looks a little like XML ? Unfortunately, something that looks a little XML so I can't use a XML parser. But the HTML parser does the job. -- http://mail.python.org/mailman/listinfo/python-list
Searching a string and extract all occurancies of a substring
Hi there, in a text with no carriage returns I need to look for all occurancies of this string: source id=boxparameter key=path.../parameter/source The ... can contain different values. I need to extract the string between source id=boxparameter key=path and /parameter/source. Example text: This is a test. link url=/www/folder target=_self title= A test. source id=boxparameter key=path/www/mydoc1/parameter/source And I need to extraxt /www/mydoc1 and /www/mydoc2 from this text. source id=boxparameter key=path/foo/bar/doc/parameter/source From this text I need to get a list with this: [/www/mydoc1, /foo/bar/doc] What's the best way to do this? I'll need to use Python: 2.3.5 Thanks in advance, Nico -- http://mail.python.org/mailman/listinfo/python-list
Re: Searching a string and extract all occurancies of a substring
Try Beautiful Soup, or if your input is simple enough, the re module.
Hi Gabriel,
I first tried HTMLParser and wrote this short script:
from HTMLParser import HTMLParser
from htmlentitydefs import entitydefs
class MyDocParser(HTMLParser):
def __init__(self):
self.paths = []
self.readingpaths = 0 # flag
HTMLParser.__init__(self)
def handle_starttag(self, tag, attrs):
if tag == 'parameter':
self.readingpaths = 1
def handle_endtag(self, tag):
if tag == 'parameter':
self.readingpaths = 0
def handle_data(self, data):
if self.readingpaths:
self.paths.append(data)
def handle_entityref(self, name):
handle values like 'Home amp; Products'
if entitydefs.has_key(name):
self.handle_data(entitydefs[name])
else:
self.handle_data('' + name + ';')
def handle_charref(self, name):
handle values like 'Home amp; Products#174;'
Ignores invalid character references
try:
charnum = int(name)
except ValueError:
return
if charnum 1 or charnum 255:
return
def get_paths(self):
return self.paths
def parse_content(content):
parse
parser = MyDocParser()
parser.feed(content)
paths = parser.get_paths()
return paths
# /end
This works as long as there are no other paramter Tags in the content
that I parse.
Nico
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Re: Searching a string and extract all occurancies of a substring
This works as long as there are no other paramter Tags in the content
that I parse.
Got it.
I forgot to handle the 'attrs' parameter in handle_starttag().
Changed it to:
def handle_starttag(self, tag, attrs):
if tag == 'parameter':
if attrs == [('key', 'infobox_path')]:
self.readingpaths = 1
This works so far.
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How to change the path for python binary?
Hi there, I have installed Python 2.3.5 on Suse Linux 10. If I enter python in the shell, the Python 2.3.5 interpreter is called. After I installed Python 2.4.3. the Python 2.4.3 interpreter is called which is the default behaviour I guess. which python brings me /usr/local/bin/python which calls the Python 2.4.3 interpreter. My question now is: What do I have to do in order to get the Python 2.3.5 interpreter each time I enter python in the shell? Regards, Nico -- http://mail.python.org/mailman/listinfo/python-list
Search substring in a string and get index of all occurances
Hi there, I would like to search for a substring in a string and get the index of all occurances. mystring = 'John has a really nice powerbook.' substr = ' ' # space I would like to get this list: [4, 8, 10, 17, 22] How can I do that without using for i in mystring which might be expensive for large strings? Thanks in advance, Nico -- http://mail.python.org/mailman/listinfo/python-list
Re: os.popen3() - how to close cmd window automatically?
replace console=[... by windows=[... in your setup.py Works perfect. Thank you, Rony! -- http://mail.python.org/mailman/listinfo/python-list
os.popen3() - how to close cmd window automatically?
Dear Python developers, I use a short python script in order to run an external application plus to open a browser displaying a default page. My Setup: Python 2.4.3. / Windows2000 # -- # Script shortcut.py import os import webbrowser import win32api # open default web browser and display webbpage page = 'C:\\Temp\\Welcome.html' webbrowser.open(page) # path to application that is opened path = C:\\Program Files\\ExternalApplication.exe # get short name shortpath = win32api.GetShortPathName(path) # open external application stdin, stdout, stderr = os.popen3(shortpath) output = stdout.read() errors = stderr.read() stdin.close() stdout.close() stderr.close() print output print errors # -- In order to make this Script available on other Windows2000 machines where no Python installation is present, I made this script executable using py2exe (http://www.py2exe.org/). This creates a shortcut.exe file. If I run shortcut.exe everything works fine but a black empty cmd window opens and its kept open until I close the application ExternalApplication.exe. How can I close that black empty window automatically? Thanks in advance, Nico -- http://mail.python.org/mailman/listinfo/python-list
Re: How to open https Site and pass request?
That depends on your OS. In Windows, I believe you would have to recompile Python from source. On Linux, you could probably just get a package. From Debian, I know that it's python-ssl. I'm sure most the others would have one as well. Hi Jerry, thank you for your reply. I use Linux and installed the package python-openssl which allows me to import the module OpenSSL (import OpenSSL) but I think installing this package has nothing to do with the SSL support of my python installation. Is that true? Regards, Nico -- http://mail.python.org/mailman/listinfo/python-list
Re: How to find out a date/time difference
I use datetime class in my program and now I have two fields that have the datetime format like this datetime.datetime(2006, 5, 24, 16, 1, 26) How can I find out the date/time difference ( in days) of such two fields? Hi Lad, you could do this: a = datetime.datetime(2006, 5, 24, 16, 1, 26) b = datetime.datetime(2006, 5, 20, 12, 1, 26) a-b datetime.timedelta(4) # 4 days b = datetime.datetime(2006, 5, 20, 12, 1, 26) x = a-b x datetime.timedelta(4, 14400) str(x) '4 days, 4:00:00' Regards, Nico -- http://mail.python.org/mailman/listinfo/python-list
How to open https Site and pass request?
Hi there,
I am trying to open an https site and pass a request to it in order to
simulate the submit of an HTML form on a https site that sets an
authentication cookie for a tomcat application, so the the URL I am
trying to open points to a web form provided by the tomcat webserver.
I tried (Python 2.3.5):
import urllib
import urllib2
the_url = https://myserver/application/login.do;
user_agent = 'Mozilla/4.0 (compatible; MSIE 5.5; Windows NT)'
headers = { 'User-Agent' : user_agent }
values = { 'username' : 'myuser', 'password' : 'mypasswd' }
data = urllib.urlencode(values)
req = urllib2.Request(the_url, data)
handle = urllib2.urlopen(req)
This raises the following exception:
Traceback (most recent call last):
File stdin, line 1, in ?
File /usr/local/lib/python2.3/urllib2.py, line 129, in urlopen
return _opener.open(url, data)
File /usr/local/lib/python2.3/urllib2.py, line 331, in open
'unknown_open', req)
File /usr/local/lib/python2.3/urllib2.py, line 306, in _call_chain
result = func(*args)
File /usr/local/lib/python2.3/urllib2.py, line 914, in unknown_open
raise URLError('unknown url type: %s' % type)
urllib2.URLError: urlopen error unknown url type: https
Any idea, what I did wrong?
Regards,
Nico
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Re: How to open https Site and pass request?
import urllib
import urllib2
the_url = https://myserver/application/login.do;
user_agent = 'Mozilla/4.0 (compatible; MSIE 5.5; Windows NT)'
headers = { 'User-Agent' : user_agent }
values = { 'username' : 'myuser', 'password' : 'mypasswd' }
data = urllib.urlencode(values)
req = urllib2.Request(the_url, data)
handle = urllib2.urlopen(req)
urllib2.URLError: urlopen error unknown url type: https
To answer my question myself:
My python installation does not have SSL support (from socket import ssl
failed). I tested the same code on another machine and it's working.
However, I am wondering how I can additionally enable SSL support for my
python installation ?
Regards,
Nico
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Re: Zope Guru...
In doing some research into Workflow apps regarding document management, I came across Zope. Given that it's Python Based, I figured I'd shout to the group here... If you want to develop an application with Zope+Python from scratch, there are a few Zope products out there that handle workflow (DCWorkflow, Openflow). If you look for an existing Zope based DMS, you might want to look at the Document Library application which has been released yesterday by infrae. http://www.infrae.com/download/documentlibrary Another existing Zope based application for document management including workflow is Plone. http://www.plone.org If you plan to start using Zope 3, you might want to take a look at http://www.zope.org/Wikis/DevSite/Projects/ComponentArchitecture/Zope3Workflow Regards, Nico -- http://mail.python.org/mailman/listinfo/python-list
Sorting a list of dictionaries by dictionary key
Hi there,
I am looking for a way to sort a list containing dictionaries.
This is my example list:
[{'Title': 'ABC', 'from_datetime': DateTime('2006/04/25 12:45:00
GMT+2')}, {'Title': 'DEF', 'from_datetime': DateTime('2006/04/18
12:45:00 GMT+2')}, {'Title': 'GHI', 'from_datetime':
DateTime('2006/03/10 12:45:00 GMT+2')}]
I want to sort the list by dictionary's key 'from_datetime' so the
sorted list should be:
[{'Title': 'GHI', 'from_datetime': DateTime('2006/03/10 12:45:00
GMT+2')}, {'Title': 'DEF', 'from_datetime': DateTime('2006/04/18
12:45:00 GMT+2')}, {'Title': 'ABC', 'from_datetime':
DateTime('2006/04/25 12:45:00 GMT+2')}]
Any idea how I can sort this list?
Thank you very much in advance,
Nico
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Re: Sorting a list of dictionaries by dictionary key
assuming that DateTime returns something that compares correctly, you can do something like: def sortkey(item): return item.get(from_datetime) data.sort(key=sortkey) (assuming Python 2.4 or later) Thank you very much, Frederik. Unfortunately, I can only use Python 2.3.5. -- http://mail.python.org/mailman/listinfo/python-list
Splitting a string
Dear Python users, I'd like to split a string where 'and', 'or', 'and not' occurs. Example string: s = 'Smith, R. OR White OR Blue, T. AND Black AND Red AND NOT Green' I need to split s in order to get this list: ['Smith, R.', 'White', 'Blue, T.', 'Back', 'Red', 'Green'] Any idea, how I can split a string where 'and', 'or', 'and not' occurs? Thank you very much in advance, Nico -- http://mail.python.org/mailman/listinfo/python-list
Re: python-soappy
can anybody point me to a tutorial, howto or example code of python-soappy...? google did not have really useful results about... This might be helpful: http://www-128.ibm.com/developerworks/library/ws-pyth5/ http://users.skynet.be/pascalbotte/rcx-ws-doc/python.htm Nico -- http://mail.python.org/mailman/listinfo/python-list
String question - find all possible versions of a person's firstname
Hi there, I have a string 'Michèle' that represents the firstname of a person. What's the best way to get all possible versions of this name if I consider to use these characters: e, è, é, ê I'd like to have a function that returns a list of the following names when passing 'Michèle' as parameter to it: 'Michele' 'Michelè' 'Michelé' 'Michelê' 'Michêle' 'Michêlè' 'Michêlé' 'Michêlê' 'Michèle' 'Michèlè' 'Michèlé' 'Michèlê' 'Michéle' 'Michélè' 'Michélé' 'Michélê' Thanks in advance, Nico -- http://mail.python.org/mailman/listinfo/python-list
Re: String question - find all possible versions of a person's firstname
This sounds like a homework problem. You might try splitting the name at the e's, check the length of the resulting list and do that many nested loops. This was my idea too but I am wondering if there are any scripts for tasks like this. Nico -- http://mail.python.org/mailman/listinfo/python-list
How to ping in Python?
Hi there, I could not find any ping Class or Handler in python (2.3.5) to ping a machine. I just need to ping a machine to see if its answering. What's the best way to do it? Kind regards, Nico -- http://mail.python.org/mailman/listinfo/python-list
Re: ftplib question - ftp.dir() returns something and ftp.nlst() does not
add ftp.set_debuglevel(3) so you can see what the goes on the wire (without that information, it's hard to tell if it's a bug in the library or a glitch in your server). /F Hello Fredrik , thank you for your reply. I did a ftp.set_debuglevel(3) and ftp.nlst() now prints: ftp.nlst() *cmd* 'TYPE A' *put* 'TYPE A\r\n' *get* '200 Type set to I.\r\n' *resp* '200 Type set to I.' *cmd* 'PORT 10,30,1,31,128,129' *put* 'PORT 10,30,1,31,128,129\r\n' *get* '200 PORT command Ok.\r\n' *resp* '200 PORT command Ok.' *cmd* 'NLST' *put* 'NLST\r\n' *get* '150 About to open data connection.\r\n' *resp* '150 About to open data connection.' *retr* '' *get* '226 Transfer complete.\r\n' *resp* '226 Transfer complete.' [] Nico -- http://mail.python.org/mailman/listinfo/python-list
Re: ftplib question - ftp.dir() returns something and ftp.nlst() does not
it's not obvious how Python could translate '' to anything other than an empty list, so it sure looks like a server issue. (or is a problem with running in passive mode? can you test with- out using passive mode on the same server?) I thought using ftp.set_pasv(0) sets active mode so I can use ftp.anyMethod() wihtout using passive mode? I tried: ftp.set_pasv(0) ftp.nlst() *cmd* 'TYPE A' *put* 'TYPE A\r\n' *get* '200 Type set to I.\r\n' *resp* '200 Type set to I.' *cmd* 'PORT 10,30,1,31,128,19' *put* 'PORT 10,30,1,31,128,19\r\n' *get* '200 PORT command Ok.\r\n' *resp* '200 PORT command Ok.' *cmd* 'NLST' *put* 'NLST\r\n' *get* '150 About to open data connection.\r\n' *resp* '150 About to open data connection.' *retr* '' *get* '226 Transfer complete.\r\n' *resp* '226 Transfer complete.' [] ftp.dir() -r--r--r-- 1 ownergroup 121984 Nov 24 12:13 member.dat -r--r--r-- 1 ownergroup 115 Nov 24 15:53 status.dat -r--r--r-- 1 ownergroup 339 Nov 24 15:53 debug.txt Nico -- http://mail.python.org/mailman/listinfo/python-list
ftplib question - ftp.dir() returns something and ftp.nlst() does not
Hi there,
I am using the ftplib library to connect to a ftp server.
After I got connected, I can see a list of file in the current directory
using ftp.dir() or ftp.retrlines('LIST'). But using ftp.nlst() returns
an empty list which seems somehow strange to me. Here is, what I did:
from ftplib import FTP
HOST = 'my.server'
USER = 'myuser'
PASSWD = 'mypass'
ftp = FTP(HOST, USER, PASSWD)
ftp.set_pasv(0) # set active mode
ftp.dir()
-r--r--r-- 1 ownergroup 121984 Nov 24 12:13 member.dat
-r--r--r-- 1 ownergroup 115 Nov 24 15:53 status.dat
-r--r--r-- 1 ownergroup 339 Nov 24 15:53 debug.txt
ftp.retrlines('LIST')
-r--r--r-- 1 ownergroup 121984 Nov 24 12:13 member.dat
-r--r--r-- 1 ownergroup 115 Nov 24 15:53 status.dat
-r--r--r-- 1 ownergroup 339 Nov 24 15:53 debug.txt
'226 Transfer complete.'
ftp.nlst()
[]
I thought ftp.nlst() would return the list ['member.dat',
'status.dat', 'debug.txt']. Any idea, what is going wrong here?
Nico
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Question about parsing a string
Hi there, I would like to parse a string in Python. If the string is e.g. '[url=http://www.whatever.org][/url]' I would like to generate this string: 'a href=http://www.whatever.org;http://www.whatever.org/a' If the string is e.g. '[url=http://www.whatever.org]My link[/url]' I would like to generate this string: 'a href=http://www.whatever.org;My link/a' Any idea how I can do this? Maybe with regular expressions? Thanks in advance, Nico -- http://mail.python.org/mailman/listinfo/python-list
How to use a timer in Python?
Hi there,
on a Linux machine running Python 2.3.5. I want to create a file
'newfile' in a directory '/tmp' only if there is no file 'transfer.lock'
in '/temp'.
A cronjob creates a file 'transfer.lock' in '/temp' directory every 15
minutes while the cronjob is doing something. This job takes around 30
seconds. During these 30 seconds the 'transfer.lock' file is present in
the '/temp' directory and I must not create 'newfile'. After the cronjob
has been finished, the 'transfer.lock' file is deleted from '/temp' and
I can create 'newfile'.
How can I use a timer that waits e.g. 10 seconds if 'transfer.lock' is
present and then checks again if 'transfer.lock' is still there?
I want to do something like this:
import os
if 'transfer.lock' in os.listdir('/temp'):
# ...wait 10 seconds and then check again if
# 'transfer.lock' is in os.listdir('/temp')
else:
# create 'newfile'
Nico
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Re: How to use a timer in Python?
Hi Sybren and Wolfram, thank you very much for the time.sleep() tip. My program reads like this now. import os import time WINDOWS_SHARE = 'C:\\Temp' while 'transfer.lock' in os.listdir( WINDOWS_SHARE ): print Busy, please wait... time.sleep(10) f = open(WINDOWS_SHARE + '/myfile', 'w') f.write(test 123) f.close() print Done! Nico -- http://mail.python.org/mailman/listinfo/python-list
Re: How to use a timer in Python?
That all sounds very race-y to me! The cron-job and the other process need to take the same lock, otherwise the cron-job will start 1ms after the other process checks for transfer.lock and before it has a chance to create newfile and there will be trouble. Using files as locks isn't brilliant because the operations read to see if the lock is there and create the file isn't aren't atomic. Ie someone can get in there after you read the directory but before you create the file. However creating a directory is atomic, so you can take the lock by os.mkdir(/tmp/lock). If that succeeded you got the lock, if it failed (threw OSError) then you didn't. If it failed then just time.sleep(1) and try again. This kind of locking works cross platform too. You can use it in shell too, eg mkdir /tmp/lock || exit 1 in your cronjob. There is no cronjob anymore now. I just need to check if there is a lock file. How would you modify my short program to avoid the situation Ie someone can get in there after you read the directory but before you create the file.? Nico -- http://mail.python.org/mailman/listinfo/python-list
How to use writelines to append new lines to an existing file
Hi there,
I would like to open an existing file that contains some lines of text
in order to append a new line at the end of the content.
My first try was:
f = open('/tmp/myfile', 'w') #create new file for writing
f.writelines('123') #write first line
f.close()
f = open('/tmp/myfile', 'w') #open existing file to append new line
f.writelines('456')
f.close()
f = open('/tmp/myfile', 'r') # open file for reading
f.read()
'456'
I supposed to have:
f.read()
'123\n456\n'
Does f = open('/tmp/myfile', 'w') overwrite the existing file or does
f.writelines('456') replace the first line in the existing file?
Nico
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How to copy a file from one machine to another machine
Hi there,
I would like to copy a file from one machine (machine #01) to another
(machine #02).
machine #01: Suse Linux 9.2, Samba 3, Python 2.3.5
machine #02: Windows Machine, Destination Dir: Share\temp\files\
Both machines are in one network so they can communicate each other. In
order to be able to write a file in the directory on Machine #02 I need
to be the user myadmin.
In a short Python program I create the source file on Machine #01 like this:
filecontent = 'This is just a test...'
# my own helper method to generate a unique filename
filename = createUniqueFilename()
f = open('/var/files/' + filename, 'w')
f.write(filecontent)
f.close()
Every time a new source file has been created it needs to be copied or
moved from machine #01 to machine #02.
Are there Python modules which help me doing this job? Any examples how
to do that would be very helpful.
Kind regards and many thanks in advance,
Nico
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Re: How to copy a file from one machine to another machine
This isn't really a Python question, as this problem would exist irrespective of the language you are using. One possibility would be to run Samba (www.smaba.org) on the Linux machine so it offered a share to the Windows machine. Then you could just write to a UNC path (\\server\path\to\file) from Windows and have the file appear on the Linux machine. Another way would be to use CIFS client on Linux to access the share from the Windows machine. There are many other file sharing solutions, and you can of course also consider using FTP to send the file to the Linux server. Hello Steve, Samba is already installed and configured on the Linux machine. Can I just use file=open(path_to_my_windows_share,'w') in Python to mount the windows share and create the file? By the way, your book Python Web Programming is one of the best python books I have read! Really good work! Nico -- http://mail.python.org/mailman/listinfo/python-list
Remove HTML tags (except anchor tag) from a string using regular expressions
Hello,
I want to remove all html tags from a string content except a
...xxx/a.
My script reads like this:
###
import re
content = re.sub('([^!]([^]|\n)*)', '', content)
###
It works fine. It removes all html tags from content.
Unfortunately, this also removes a ...xxx/a occurancies.
Any idea, how to modify this to remove all html tags except a ...xxx/a?
Thanks in advance,
Nico
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