Re: How to replace space in a string with \n
hi ^Bert,
I've just thought that you don't like to use text.replace(' ', '\n'), and so I
came up with another way to get the job done.
So it was part of a "school-test" - uiuitststs ;-)
follow the hint from Peter then, and inside *your* for-loop ask yourself, how
to inspect the value of c in a loop and what to do *if* the value of c was ' ' .
as mentioned, a string is immuteable, so you cannot change it *inplace* - you
have to build a new str-object (has a new object-id the starting with an empty
string say
newtext = ''
and with each loop over your original text you add one character like
newtext = newtext+c
and only if c has a value of ' ', then you add a different value like '\n'
well, now you should try to understand peters for-loop, and then you should try
to combine what you have learned with the if-statement within the for(-loop)
block
happy learning the python-language! It's a great one, this I can promise you!
regards
Michael
* Peter Otten <__pete...@web.de> [2019-01-31 11:15]:
> ^Bart wrote:
>
> >> Why?
> >
> > It's a school test, now we should use just what we studied, if than,
> > else, sequences, etc.!
> >
> > ^Bart
>
> Hint: you can iterate over the characters of a string
>
> >>> for c in "hello":
> ... print(c)
> ...
> h
> e
> l
> l
> o
>
>
>
>
> --
> https://mail.python.org/mailman/listinfo/python-list
--
Michael Poeltl
Computational Materials Physics at University
Wien, Sensengasse 8/12, A-1090 Wien, AUSTRIA
http://cmp.univie.ac.at/
http://homepage.univie.ac.at/michael.poeltl/
using elinks-0.12, mutt-1.5.21, and vim-7.4,
with python-3.6.1, on linux mint 17.3 (rose) :-)
fon: +43-1-4277-51409
"Lehrend lernen wir!"
--
https://mail.python.org/mailman/listinfo/python-list
Re: How to replace space in a string with \n
hi,
^Bart ended in a Mail-Delivery...
so I send it ONLY to the python-list
^Bert, a proper way to do what you'd liked to achieve is the following:
>>> text = "The best day of my life!"
>>> newtext = '\n'.join( text.split() )
>>> print(newtext)
The
best
day
of
my
life!
>>>
regards
Michael
* ^Bart [2019-01-31 10:22]:
> Hello everybody! :)
>
> I got a text and I should replace every space with \n without to use
> str.replace, I thought something like this:
>
> text = "The best day of my life!"
>
> space = (' ')
>
> if text.count(' ') in text:
> space=\n
>
> rightText = text-space
>
> print(rightText)
>
> I should have an output like this:
> The
> best
> day
> of
> my
> life!
>
> --
> https://mail.python.org/mailman/listinfo/python-list
--
Michael Poeltl
Computational Materials Physics at University
Wien, Sensengasse 8/12, A-1090 Wien, AUSTRIA
http://cmp.univie.ac.at/
http://homepage.univie.ac.at/michael.poeltl/
using elinks-0.12, mutt-1.5.21, and vim-7.4,
with python-3.6.1, on linux mint 17.3 (rose) :-)
fon: +43-1-4277-51409
"Lehrend lernen wir!"
--
https://mail.python.org/mailman/listinfo/python-list
Re: How to replace space in a string with \n
hi,
Maybe this is a proper way to do what you'd liked to achieve
>>> text = "The best day of my life!"
>>> newtext = '\n'.join( text.split() )
>>> print(newtext)
The
best
day
of
my
life!
>>>
yours
Michael
* ^Bart [2019-01-31 10:22]:
> Hello everybody! :)
>
> I got a text and I should replace every space with \n without to use
> str.replace, I thought something like this:
>
> text = "The best day of my life!"
>
> space = (' ')
>
> if text.count(' ') in text:
> space=\n
>
> rightText = text-space
>
> print(rightText)
>
> I should have an output like this:
> The
> best
> day
> of
> my
> life!
>
> --
> https://mail.python.org/mailman/listinfo/python-list
--
Michael Poeltl
Computational Materials Physics at University
Wien, Sensengasse 8/12, A-1090 Wien, AUSTRIA
http://cmp.univie.ac.at/
http://homepage.univie.ac.at/michael.poeltl/
using elinks-0.12, mutt-1.5.21, and vim-7.4,
with python-3.6.1, on linux mint 17.3 (rose) :-)
fon: +43-1-4277-51409
"Lehrend lernen wir!"
--
https://mail.python.org/mailman/listinfo/python-list
Re: How to replace space in a string with \n
maybe this is an alternative way to get your wished result.
>>> text = "The best day of my life!"
>>> newtext = '\n'.join( text.split() )
>>> print(newtext)
The
best
day
of
my
life!
>>>
yours
Michael
* ^Bart [2019-01-31 10:22]:
> Hello everybody! :)
>
> I got a text and I should replace every space with \n without to use
> str.replace, I thought something like this:
>
> text = "The best day of my life!"
>
> space = (' ')
>
> if text.count(' ') in text:
> space=\n
>
> rightText = text-space
>
> print(rightText)
>
> I should have an output like this:
> The
> best
> day
> of
> my
> life!
>
> --
> https://mail.python.org/mailman/listinfo/python-list
--
Michael Poeltl
Computational Materials Physics at University
Wien, Sensengasse 8/12, A-1090 Wien, AUSTRIA
http://cmp.univie.ac.at/
http://homepage.univie.ac.at/michael.poeltl/
using elinks-0.12, mutt-1.5.21, and vim-7.4,
with python-3.6.1, on linux mint 17.3 (rose) :-)
fon: +43-1-4277-51409
"Lehrend lernen wir!"
--
https://mail.python.org/mailman/listinfo/python-list
Re: Can't find way to install psycopg2 in 3.5
hi, I'm used to compile postgresql from source (last time it was postgresql-9.4.4 with ./configure --prefix=/usr --enable-thread-safety --docdir=/usr/share/doc/postgresql-9.4.4 --with-tcl --with-openssl --enable-nls=de --with-libxml on my linuxmint17-box) and then the installation of psycopg2 (in my case psycopg2-2.6.1) works just fine and smoothly (even for python-3.5!). If you've got postgresql through a pre-compiled package it is (maybe) necessary to *show* where to find 'pg_config' by editing the setup.cfg-file in the psycopg2-source-folder. Have you visited this site? http://initd.org/psycopg/ regards Michael * Dhaval Parekh - NCrypted <dhaval.par...@ncrypted.com> [2015-12-14 09:29]: > Hello, > > > > I'm newbie in using python. I've installed python 3.5 and django 1.9 to > develop web application. I wanted to set postgresql as a DBMS but I couldn't > complete the setup as it was continuously throwing me an error that psycopg2 > module not found. I've digged a lot but I couldn't find psycopg2 for python > 3.5. Is it something 3.5 has different scenario for django? I couldn't find > anyway to complete my setup so I'm going to downgrade to 3.4 as I found > psycopg2 for 3.4 only. > > > > If you have any idea about it then please let me know. > > > > > > > > Regards, > > Dhaval Parekh > > Project Coordinator, > > NCrypted Technologies Pvt. Ltd. > <http://www.ncrypted.com/> http://www.ncrypted.com > > > > An ISO 9001:2008 Certified Company | BID International Quality Crown (2012) > <http://www.ncrypted.com/iqc-international-quality-crown-award> Award Winner > > IDC: 2nd floor, Shivalik 5, Gondal Road, Rajkot (Gujarat), India | +91 (281) > 237 8880, 391 8880 > > Disclaimer & Privilege Notice: This e-Mail may contain proprietary, > privileged and confidential information and is sent for the intended > recipient(s) only. If, by an addressing or transmission error, this mail has > been misdirected to you, you are requested to notify us immediately by > return email message and delete this mail and its attachments. You are also > hereby notified that any use, any form of reproduction, dissemination, > copying, disclosure, modification, distribution and/or publication of this > e-mail message, contents or its attachment(s) other than by its intended > recipient(s) is strictly prohibited. Any opinions expressed in this email > are those of the individual and may not necessarily represent those of > NCrypted Technologies Pvt. Ltd. Before opening attachment(s), please scan > for viruses. > > NCrypted is a registered trademark of NCrypted Technologies Pvt. Ltd. in > India and other countries. > > > > -- > https://mail.python.org/mailman/listinfo/python-list -- Michael Poeltl <michael.poe...@univie.ac.at> Computational Materials Physics at University Wien, Sensengasse 8/12, A-1090 Wien, AUSTRIA http://cmp.univie.ac.at/ http://homepage.univie.ac.at/michael.poeltl/ using elinks-0.12, mutt-1.5.21, and vim-7.4, with python-3.4.3, on linux mint 17 (qiana) :-) fon: +43-1-4277-51409 "Lehrend lernen wir!" -- https://mail.python.org/mailman/listinfo/python-list
Re: Bug in floating point multiplication
hi Steven, I'm running python-3.4.2 on a linuxmint16 box and CANNOT reproduce it is just that int(i*x) == i is never True! hope that helps regards Michael * Steven D'Aprano st...@pearwood.info [2015-07-02 16:56]: Despite the title, this is not one of the usual Why can't Python do maths? bug reports. Can anyone reproduce this behaviour? If so, please reply with the version of Python and your operating system. Printing sys.version will probably do. x = 1 - 1/2**53 assert x == 0. for i in range(1, 100): if int(i*x) == i: print(i); break Using Jython and IronPython, the loop runs to completion. That is the correct behaviour, or so I am lead to believe. Using Python 2.6, 2.7 and 3.3 on Centos and Debian, it prints 2049 and breaks. That should not happen. If you can reproduce that (for any value of i, not necessarily 2049), please reply. See also http://bugs.python.org/issue24546 for more details. -- Steven -- https://mail.python.org/mailman/listinfo/python-list -- Michael Poeltl michael.poe...@univie.ac.at Computational Materials Physics at University Wien, Sensengasse 8/12, A-1090 Wien, AUSTRIA http://cmp.univie.ac.at/ http://homepage.univie.ac.at/michael.poeltl/ using elinks-0.12, mutt-1.5.21, and vim-7.3, with python-3.4.2, on linux mint 16 (petra) :-) fon: +43-1-4277-51409 Lehrend lernen wir! -- https://mail.python.org/mailman/listinfo/python-list
Re: Python Magazine
* DRJ Reddy rama29...@gmail.com [2013-05-25 05:26]: Planning to start a python online chronicle.What you want to see in it. :) - idiomatic python (common mistakes; do it 'pythonically') - interviews - challenge of the week (how would you solve that?) - python for kids - scientific python news - new python-books - -- http://mail.python.org/mailman/listinfo/python-list -- Michael Poeltl michael.poe...@univie.ac.at Computational Materials Physics at University Wien, Sensengasse 8/12, A-1090 Wien, AUSTRIA http://cmp.univie.ac.at/ http://homepage.univie.ac.at/michael.poeltl/ using elinks-0.12, mutt-1.5.21, and vim-7.3, with python-3.2.3, on slackware-13.37 :-) fon: +43-1-4277-51409 -- http://mail.python.org/mailman/listinfo/python-list
Re: Python trademark - A request for civility
hi, there are also ruby.co.uk lua.co.uk in my opinion someone who is on the ruby-/lua-malinglist too should warn these guys * Steven D'Aprano steve+comp.lang.pyt...@pearwood.info [2013-02-16 06:50]: Folks, It seems that people have been sending threats and abuse to the company claiming a trademark on the name Python. And somebody, somewhere, may have launched a DDOS attack on their website. The Python Software Foundation has asked the community for restraint and civility during this dispute. Abuse and threats just bring the Python community into disrepute. yeah - that's also my opinion! Michael http://pyfound.blogspot.com/2013/02/asking-for-civility-during-our.html -- Steven -- http://mail.python.org/mailman/listinfo/python-list -- Michael Poeltl Computational Materials Physics voice: +43-1-4277-51409 Univ. Wien, Sensengasse 8/12 fax: +43-1-4277-9514 (or 9513) A-1090 Wien, AUSTRIA cmp.mpi.univie.ac.at --- slackware-13.37 | vim-7.3 | python-3.2.3 | mutt-1.5.21 | elinks-0.12 --- -- http://mail.python.org/mailman/listinfo/python-list
Re: Further evidence that Python may be the best language forever
hi Stefan, * Stefan Behnel stefan...@behnel.de [2013-01-29 08:00]: Michael Torrie, 29.01.2013 02:15: On 01/28/2013 03:46 PM, Malcolm McCrimmon wrote: My company recently hosted a programming competition for schools across the country. One team made it to the finals using the Python client, one of the four default clients provided (I wrote it). Most of the other teams were using Java or C#. Guess which team won? http://www.windward.net/codewar/2013_01/finals.html We did a similar (although way smaller) contest once at a university. The task was to write a network simulator. We had a C team, a Java team and a Python team, four people each. The Java and C people knew their language, the Python team just started learning it. The C team ended up getting totally lost and failed. The Java team got most things working ok and passed. The Python team got everything working, but additionally implemented a web interface for the simulator that monitored and visualised its current state. They said it helped them with debugging. quite interesting! I'd liked to see the code is it available for 'download'? thx Michael What language was the web page hosted in? It comes up completely blank for me. :) Yep, same here. Hidden behind a flash wall, it seems. Stefan -- http://mail.python.org/mailman/listinfo/python-list -- Michael Poeltl Computational Materials Physics voice: +43-1-4277-51409 Univ. Wien, Sensengasse 8/12 fax: +43-1-4277-9514 (or 9513) A-1090 Wien, AUSTRIA cmp.mpi.univie.ac.at --- slackware-13.37 | vim-7.3 | python-3.2.3 | mutt-1.5.21 | elinks-0.12 --- -- http://mail.python.org/mailman/listinfo/python-list
Re: PyGreSQL 4.1 released
no python3 support yet? can you tell us when pygresql will be ready for python3? thx Michael * D'Arcy J.M. Cain da...@pygresql.org [2013-01-03 15:05]: --- Release of PyGreSQL version 4.1 --- It has been a long time coming but PyGreSQL v4.1 has been released. It is available at: http://pygresql.org/files/PyGreSQL-4.1.tgz. If you are running NetBSD, look in the packages directory under databases. There is also a package in the FreeBSD ports collection which will probably be updated shortly. Please refer to `changelog.txt changelog.html`_ for things that have changed in this version. Please refer to `readme.txt readme.html`_ for general information. This version has been built and unit tested on: - NetBSD - FreeBSD - openSUSE 12.2 - Windows 7 with both MinGW and Visual Studio - PostgreSQL 8.4, 9.0 and 9.2 32 and 64bit - Python 2.5, 2.6 and 2.7 32 and 64bit -- D'Arcy J.M. Cain PyGreSQL Development Group http://www.PyGreSQL.org IM:da...@vex.net -- http://mail.python.org/mailman/listinfo/python-list -- Michael Poeltl Computational Materials Physics voice: +43-1-4277-51409 Univ. Wien, Sensengasse 8/12 fax: +43-1-4277-9514 (or 9513) A-1090 Wien, AUSTRIA cmp.mpi.univie.ac.at --- slackware-13.37 | vim-7.3 | python-3.2.3 | mutt-1.5.21 | elinks-0.12 --- -- http://mail.python.org/mailman/listinfo/python-list
Re: Books?
I would recommend Dive into Python3 just goole-search dive into python3 filetype:pdf and you got it! regards Michael * Anonymous Group anonymous42311...@gmail.com [2012-08-22 03:40]: What books do you recomend for learning python? Preferably free and/or online. -- http://mail.python.org/mailman/listinfo/python-list -- Michael Poeltl Computational Materials Physics voice: +43-1-4277-51409 Univ. Wien, Sensengasse 8/12 fax: +43-1-4277-9514 (or 9513) A-1090 Wien, AUSTRIA cmp.mpi.univie.ac.at --- ubuntu-11.10 | vim-7.3 | python-3.2.2 | mutt-1.5.21 | elinks-0.12 --- -- http://mail.python.org/mailman/listinfo/python-list
Re: find out whether a module exists (without importing it)
in my opinion, without importing it makes it unnecessarily complicated. You just want to know it module xyz exists, or better said can be found (sys.path). why not try - except[ - else ] try: import mymodule except ImportError: # NOW YOU KNOW it does not exist #+ and you may react properly ?? * Gelonida N gelon...@gmail.com [2012-08-06 22:49]: Is this possible. let's say I'd like to know whether I could import the module 'mypackage.mymodule', meaning, whther this module is located somewhere in sys.path i tried to use imp.find_module(), but it didn't find any module name containing a '.' Am I doing anything wrong? Is there another existing implementation, that helps. I could do this manually, but this is something I'd just like to do if necessary. -- http://mail.python.org/mailman/listinfo/python-list -- Michael Poeltl Computational Materials Physics voice: +43-1-4277-51409 Univ. Wien, Sensengasse 8/12 fax: +43-1-4277-9514 (or 9513) A-1090 Wien, AUSTRIA cmp.mpi.univie.ac.at --- ubuntu-11.10 | vim-7.3 | python-3.2.2 | mutt-1.5.21 | elinks-0.12 --- -- http://mail.python.org/mailman/listinfo/python-list
Re: Python Book for a C Programmer?
hi, take 'Pro Python' (by Marty Alchin) regards Michael * hsa...@gmail.com hsa...@gmail.com [2012-05-24 07:54]: I am trying to join an online class that uses python. I need to brush up on the language quickly. Is there a good book or resource that covers it well but does not have to explain what an if..then..else statement is? Thanks. -- http://mail.python.org/mailman/listinfo/python-list -- Michael Poeltl Computational Materials Physics voice: +43-1-4277-51409 Univ. Wien, Sensengasse 8/12 fax: +43-1-4277-9514 (or 9513) A-1090 Wien, AUSTRIA cmp.mpi.univie.ac.at --- ubuntu-11.10 | vim-7.3 | python-3.2.2 | mutt-1.5.21 | elinks-0.12 --- -- http://mail.python.org/mailman/listinfo/python-list
Re: python segfault
hi, * Dave Angel d...@davea.name [2012-03-28 04:38]: On 03/27/2012 06:27 PM, Michael Poeltl wrote: hi, can anybody tell why this 'little stupid *thing* of code' let's python-3.2.2, 2.6.X or python 2.7.2 segfault? def get_steps2(pos=0, steps=0): ... if steps == 0: ... pos = random.randint(-1,1) ... if pos == 0: ... return steps ... steps += 2 ... pos += random.randint(-1,1) ... return get_steps2(pos,steps) ... SNIP 0 2 8 0 Segmentation fault ? funny, isn't it? I was able to reproduce this segfault on various machines (32bit 64bit), ubuntu, slackware, debian python.X segfaults on all of them thx Michael Others have explained why you can't just raise the recursion limit to arbitrarily large values, and why there's no particular bound on the possible recursion size. But the real question is why you don't do the completely trivial conversion to a non-recursive equivalent. All you need do is add a while True: to the beginning of the function, and remove the return statement. yeah - of course 'while True' was the first, most obvious best way... ;-) but I was asked if there was a way without 'while True' and so I started the 'recursive function' and quick quick; RuntimeError-Exception - not thinking much - just adding two zeros to the default limit (quick and dirty) - segfault == subject: python segfault ;-) and that was my first time that I received a segfault and not an Exception NOW it's quite clear ;-) thank you! Michael -- DaveA -- Michael Poeltl Computational Materials Physics voice: +43-1-4277-51409 Univ. Wien, Sensengasse 8/12 fax: +43-1-4277-9514 (or 9513) A-1090 Wien, AUSTRIA cmp.mpi.univie.ac.at --- ubuntu-11.10 | vim-7.3 | python-3.2.2 | mutt-1.5.21 | elinks-0.12 --- -- http://mail.python.org/mailman/listinfo/python-list
python segfault
hi, can anybody tell why this 'little stupid *thing* of code' let's python-3.2.2, 2.6.X or python 2.7.2 segfault? def get_steps2(pos=0, steps=0): ... if steps == 0: ... pos = random.randint(-1,1) ... if pos == 0: ... return steps ... steps += 2 ... pos += random.randint(-1,1) ... return get_steps2(pos,steps) ... import random, sys sys.setrecursionlimit(10) for i in range(200): ... print ( get_steps2() ) ... 4 0 8 0 0 0 2 2 166 2 0 0 16 4 2 16 0 0 10 70 152 50 58 0 6 0 0 0 2 8 0 Segmentation fault ? funny, isn't it? I was able to reproduce this segfault on various machines (32bit 64bit), ubuntu, slackware, debian python.X segfaults on all of them thx Michael -- Michael Poeltl Computational Materials Physics voice: +43-1-4277-51409 Univ. Wien, Sensengasse 8/12 fax: +43-1-4277-9514 (or 9513) A-1090 Wien, AUSTRIA cmp.mpi.univie.ac.at --- ubuntu-11.10 | vim-7.3 | python-3.2.2 | mutt-1.5.21 | elinks-0.12 --- -- http://mail.python.org/mailman/listinfo/python-list
Re: random number
* Nikhil Verma varma.nikhi...@gmail.com [2012-03-26 08:09]:
Hi All
How can we generate a 6 digit random number from a given number ?
what about this?
given_number=123456
def rand_given_number(x):
... s = list(str(x))
... random.shuffle(s)
... return int(''.join(s))
...
print (rand_given_number(given_number))
653421
--
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Re: random number
* Nikhil Verma varma.nikhi...@gmail.com [2012-03-26 08:49]:
Hi
I want something to achieve like this :-
def random_number(id): # I am passing it from request
# do something
return random_number
Output
random_number(5)
AXR670
One input that is a number in return you are getting 6 digit alphanumeric
string.
I tried this
s = '%06d' % random.randint(0, 99)
it gives : '192862' (a string )
Thanks in advance.
ah - so I misunderstood - I thought you want a permutation of a given
6-digit number
It's still not quite clear to me what role 'id' is playing ... so let's
check this one;
and Steven, who is maybe more experienced than I am will help us ufrther
import random, string
def random_number(id):
... characters = list(string.ascii_lowercase +
... string.ascii_uppercase +
... string.digits)
... coll_rand = []
... for i in range(6):
... random.shuffle(characters)
... coll_rand.append(characters[0])
... return ''.join(coll_rand)
...
id = 5
print (random_number(id))
puMHCr
regards
Michael
On Mon, Mar 26, 2012 at 12:10 PM, Michael Poeltl
michael.poe...@univie.ac.at wrote:
* Nikhil Verma varma.nikhi...@gmail.com [2012-03-26 08:09]:
Hi All
How can we generate a 6 digit random number from a given number ?
what about this?
given_number=123456
def rand_given_number(x):
... s = list(str(x))
... random.shuffle(s)
... return int(''.join(s))
...
print (rand_given_number(given_number))
653421
--
Regards
Nikhil Verma
+91-958-273-3156
--
Michael Poeltl
Computational Materials Physics voice: +43-1-4277-51409
Univ. Wien, Sensengasse 8/12 fax: +43-1-4277-9514 (or 9513)
A-1090 Wien, AUSTRIA cmp.mpi.univie.ac.at
---
ubuntu-11.10 | vim-7.3 | python-3.2.2 | mutt-1.5.21 | elinks-0.12
---
--
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Re: Looking under Python's hood: Will we find a high performance or clunky engine?
* Ian Kelly ian.g.ke...@gmail.com [2012-01-22 19:29]:
On Sun, Jan 22, 2012 at 8:50 AM, Rick Johnson
rantingrickjohn...@gmail.comwrote:
What does Python do when presented with this code?
py [line.strip('\n') for line in f.readlines()]
If Python reads all the file lines first and THEN iterates AGAIN to do
the strip; we are driving a Fred flintstone mobile. If however Python
strips each line of the lines passed into readlines in one fell swoop,
we made the correct choice.
Which is it Pythonistas? Which is it?
I cannot understand why it is so important for you to store
lines out of a textfile in a list without '\n'.
have you ever considered the *pros* of leaving '\n' ?
Two iterations. And since that is the only possible way to do this, you
are correct, the language is terribly archaic. I suggest you switch to
Ruby ASAP.
why there is only one possibility to do so? in a second i found this
''.join(open('test').readlines()).split('\n')
and if you don't like python, then stick to ruby. who cares???
--
Michael Poeltl
Computational Materials Physics voice: +43-1-4277-51409
Univ. Wien, Sensengasse 8/12 fax: +43-1-4277-9514 (or 9513)
A-1090 Wien, AUSTRIA cmp.mpi.univie.ac.at
---
ubuntu-11.10 | vim-7.3 | python-3.2.2 | mutt-1.5.21 | elinks-0.12
---
On Sun, Jan 22, 2012 at 8:50 AM, Rick Johnson rantingrickjohn...@gmail.com wrote:
What does Python do when presented with this code?
py [line.strip(\n) for line in f.readlines()]
If Python reads all the file lines first and THEN iterates AGAIN to do
the strip; we are driving a Fred flintstone mobile. If however Python
strips each line of the lines passed into readlines in one fell swoop,
we made the correct choice.
Which is it Pythonistas? Which is it?Two iterations. And since that is the only possible way to do this, you are correct, the language is terribly archaic. I suggest you switch to Ruby ASAP.
--
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Re: Commands for changing ownership of a file
in python-3.2.1 I'm using os.system() again, from time to time
maybe that's the one you were looking for?
os.system('chown user:group /tmp/f')
0
os.system('ls -l /tmp/f')
-rw-r--r-- 1 user group 0 Aug 15 03:52 /tmp/f
and besides os.chown() (where you ned the uid and gid), you could also use
subprocess.call() or subprocess.Popen()
regards
Michael
* Jason Hsu jhsu802...@gmail.com [2011-08-15 01:15]:
I have a script that I execute as root, but I need to change the
ownership of the files created in the script to that of my username.
In GNU Bash, the command is something like chown myusername:users.
What's the equivalent Python command? I know that there is a command
that uses numbers for the username and group, but is there a command
that would allow me to use myusername and users instead of numbers?
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Re: how to solve it?
* 守株待兔 1248283...@qq.com [2011-08-01 06:22]: from matplotlib.matlab import * Traceback (most recent call last): File stdin, line 1, in module ImportError: No module named matlab does this work? import matplotlib next check 'gallery' at http://matplotlib.sourceforge.net/index.html choose the graph (click it) you need, and there you can browse the source-code (python-code) this is maybe the best starting-point, I guess. cheers Michael -- Michael Poeltl Computational Materials Physics voice: +43-1-4277-51409 Univ. Wien, Sensengasse 8/12 fax: +43-1-4277-9514 (or 9513) A-1090 Wien, AUSTRIA cmp.mpi.univie.ac.at slackware-12.2/ubuntu-10.10 | vim-7.3 | python-3.2.1 | mutt-1.5.18 | elinks-0.12 -- http://mail.python.org/mailman/listinfo/python-list
Re: how to solve it?
* 守株待兔 1248283...@qq.com [2011-08-01 06:22]: from matplotlib.matlab import * Traceback (most recent call last): File stdin, line 1, in module ImportError: No module named matlab is this what you were looking for? from matplotlib.pylab import * cheers Michael -- Michael Poeltl Computational Materials Physics voice: +43-1-4277-51409 Univ. Wien, Sensengasse 8/12 fax: +43-1-4277-9514 (or 9513) A-1090 Wien, AUSTRIA cmp.mpi.univie.ac.at slackware-12.2/ubuntu-10.10 | vim-7.3 | python-3.2.1 | mutt-1.5.18 | elinks-0.12 -- http://mail.python.org/mailman/listinfo/python-list
Re: list comprehension to do os.path.split_all ?
* Michael Torrie torr...@gmail.com [2011-07-31 03:44]:
On Jul 29, 2011 6:33 PM, Michael Poeltl michael.poe...@univie.ac.at
wrote:
what about this?
' '.join('/home//h1122/bin///ghi/'.split('/')).split()
['home', 'h1122', 'bin', 'ghi']
Doesn't work on filenames with spaces in them.
you are right; me, I never put spaces into my filenames and so I didn't
think of this possibility.
so there is another idea, which will not work on dirnames 'with spacs in
them' ;-)
p = '/path//to///file/i am a file'
'
'.join(os.path.split(p)[0].split('/')).split().__add__([os.path.split(p)[1]])
['path', 'to', 'file', 'i am a file']
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Re: list comprehension to do os.path.split_all ?
* Alexander Kapps alex.ka...@web.de [2011-07-29 22:30]:
On 29.07.2011 21:30, Carl Banks wrote:
It's not even fullproof on Unix.
'/home//h1122/bin///ghi/'.split('/')
['','home','','bin','','','ghi','']
what about this?
' '.join('/home//h1122/bin///ghi/'.split('/')).split()
['home', 'h1122', 'bin', 'ghi']
;-)
regards
Michael
Carl Banks
This would also be fixed with normpath() as Dennis Lee Bieber suggested.
And my solution with list comprehensions handles this too.
Still, there might be other path oddities which would break here. I
think, that something like a split_all() function should be available in
the stdlib, no?
Actually, it isn't the first time, where I wonder why os.path.split()
doesn't do this already. I mean, str.split() doesn't only split on the
first part, right?
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Re: PyWart: os.path needs immediate attention!
join 'Python-Dev'-mailinglist and tell them!
from now on I will just ignore threads you initiated
does trolling really make that much fun?
* rantingrick rantingr...@gmail.com [2011-07-29 19:25]:
--
Overview of Problems:
--
* Too many methods exported.
* Poor choice of method names.
* Non public classes/methods exported!
* Duplicated functionality.
--
Proposed new functionality:
--
* New path module will ONLY support one path sep! There is NO reason
to support more than one. When we support more than one path sep we
help to propagate multiplicity.We should only support the slash and
NOT the backslash across ALL OS's since the slash is more widely
accepted. If an OS does not have the capability to support only the
slash then that OS is not worthy of a Python builtin module. The users
of such OS will be responsible for managing their OWN os_legacy.path
module. We are moving forward. Those who wish to wallow in the past
will be left behind.
* Introduce a new method named partition which (along with string
splitting methods) will replace the six methods basename, dirname,
split, splitdrive, splitunc, splittext. The method will return
a tuple of the path split into four parts: (drive, path, filename,
extension). This is the ONLY splitting method this module needs. All
other splits can use string methods.
--
Expose of the Warts of current module:
--
~
1. Too many methods
~
Follows is a list of what to keep and what to cull:
+ abspath
+ altsep
- basename -- path.partition[-2]
+ commonprefix
+ curdir
+ defpath
+ devnull
- dirname -- os.path.join(drive,path)
+ exists
+ expanduser
+ expandvars
+ extsep
- genericpath -- should be private!
+ getatime
+ getctime
+ getmtime
+ getsize
+ isabs
+ isdir
+ isfile
+ islink
+ ismount
+ join
- lexists -- duplicate!
- normcase -- path = path.lower()
- normpath -- should not need this!
- os -- should be private!
+ pardir
+ pathsep
+ realpath
+ relpath
+ sep
- split -- path.rsplit('/', 1)
- splitdrive -- path.split(':', 1)
- splitext -- path.rsplit('.')
- splitunc -- Unix specific!
- stat -- should be private!
+ supports_unicode_filenames -- windows specific!
- sys -- should be private!
+ walk
- warnings -- should be private!
~
2. Poor Name Choices:
~
* basename -- should be: filename
* split -- split what?
* splitext -- Wow, informative!
~
3. Non Public Names Exposed!
~
* genericpath
* os
* stat
* sys
* warnings
Note: i did not check the Unix version of os.path for this.
~
4. Duplicated functionality.
~
os.path.lexists.__doc__
'Test whether a path exists. Returns False for broken symbolic links'
os.path.exists.__doc__
'Test whether a path exists. Returns False for broken symbolic links'
Should have been one method:
os.path.exists(path, ignoreSymLnks=False)
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Re: newbie in python
A big help for 'easily learning python was and is Learning Python (a book written by Mark Lutz) after having studied this book you are able to think in python another book I like very much is Core Python Programming (written by Wesley Chun) regards michael On Thursday 21 February 2008 03:26:17 pm subeen wrote: Dive into Python is a very good book but it's for people who have experience in other languages. I liked the book. Whatever book you read, please take a look at the Python Tutorial: http://docs.python.org/tut/tut.html, it will help. regards, Subeen. http://love-python.blogspot.com/ On Feb 21, 6:01 pm, 7stud [EMAIL PROTECTED] wrote: [EMAIL PROTECTED] wrote: Hi anyone I'm very interesed to learn python and really willing to do so,but unfortunately dont know where to start, or what programs need to install to start. Can someone help me to get in the right track, and get a good move? Thanks for all help If you're a good student or you have prior programming experience, get the book 'Learning Python', which just came out with a 3rd edition, so it is the most up to date book. If you are not such a good student or have no prior programming experience, and you want a gentler introduction to python, check out the book 'Python Programming for the Absolute Beginner(2nd Ed.)' -- http://mail.python.org/mailman/listinfo/python-list
Re: may be a bug in string.rstrip
hi,
what about this
'exe.torrent'.split('.')[0]
'exe'
'exe.torrent'.rstrip('toren').rstrip('.')
'exe'
that's what you need, isn't it?
On Friday 23 November 2007 05:09:50 am kyo guan wrote:
Hi :
Please look at this code:
'exe.torrent'.rstrip('.torrent')
'ex' - it should be 'exe', why?
but this is a right answer:
'120.exe'.rstrip('.exe')
'120' -- this is a right value.
there is a bug in the rstrip, lstrip there isn't this problem.
Kyo.
michael
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Re: What is python?????
On Saturday 17 November 2007 01:32:52 pm Cope wrote: On Nov 17, 5:00 pm, Amit Khemka [EMAIL PROTECTED] wrote: On 11/17/07, Cope [EMAIL PROTECTED] wrote: In our place we eat pythons for curry. Its delicious. And how about your python? Cope Not much of the difference here, it is just a bit more flexible. My python goes and brings me whatever I wish to eat. Cheers, -- -- Amit Khemka You must be Python Charmer just clients of a certain cheese-shop ;-) -- http://mail.python.org/mailman/listinfo/python-list
