Re: [Tutor] easygui question, again
"Rafael Bejarano" <[EMAIL PROTECTED]> wrote > that it would be a relatively simple matter to import the easygui > module and call its functions using the terminal window, especially > given that I have had success in the past importing other modules > and > calling their functions. I suspect that this is because you have been using the standard library modules which Python knows how to find. When you add a downloaded module, like easygui, you need to let Python know how to find it. This is done in one of three ways: 1) Put it in the same folder from which you run python 2) Put it in /lib/site-packages 3) Put in in some other folder and add that folder to your PYTHONPATH environment variable setting The easiest way for you is probably number 2. Try following this procedure: 1) Start Python to get a >>> prompt 2) import sys 3) print sys.path 4) use the mouse to select one of the lines that contains "site-packages" 5) Open a Finder window 6) Navigate in Finder to the folder highlighted in your Python window 7) If necessary navigate back up to site-packages itself 8) Create a new sub folder and name it EasyGui 9) Copy easygui.py into the new folder 10) Create a new text file called EasyGui.pth 11) enter the single line "EasyGui" (without the quotes) and save/exit the editor 12) exit python and enter it again. 13) type import easygui at the Python prompt. If no error messages appear you should have installed easygui where python can see it. NB I typed that at my PC so its from memory and untested but hopefully its close enough that you can figure out any discrepancies. HTH, -- Alan Gauld Author of the Learn to Program web site http://www.freenetpages.co.uk/hp/alan.gauld ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] easygui question, again
"Rafael Bejarano" <[EMAIL PROTECTED]> wrote > As I understand it from the description of this list, that is > exactly > its purpose--to help people who no relatively little python. That's true, but usually the folks asking questions are fairly expert at using their computers so they are familiar with concepts like command lines, changing directories, creating text files, setting environment variables etc. I suspect you are too within the confines of the MacOS GUI, the problem is that MacOS is such a good GUI that Mac users rarely need to use a command line! Unfortunately programming on any computer requires a reasonable knowledge of the technical underpinnings of how the computer works, something many Mac users don't necessarily have. The easiest way to access these things is via the Terminal application and the Unix command prompt. The others are suggesting that before progressing further you should invest the time to learn the basics of using the MacOS Unix command prompt. In fact I think the only problem here is that you are trying to use a non-standard module and something is wrong with how it is set up. (See my other post). If you stick to the standard Python modules you will be fine. > Naturally, if the list collectively deems my questions > inappropriate, The questions are fine, unfortunately the solutions require some skills and knowledge that you apparently don't possess yet. That's OK but this list is not the best place to learn how to drive MacOS since most members don't use it. But enough of us do that we should be able to give you some pointers at least. Regards, -- Alan Gauld Author of the Learn to Program web site http://www.freenetpages.co.uk/hp/alan.gauld ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] easygui question, again
* Rafael Bejarano (Sun, 10 Jun 2007 20:49:40 -0500) > As I understand it from the description of this list, that is exactly > its purpose--to help people who no relatively little python. That's correct. But your problem (or the solution to your problem) is more related to _Operating System_ basics as to Python basics (see also Alan Gaulds response). And please don't send me private email. Thanks, Thorsten ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] looking for some general advice
Alan Gauld wrote: > I'm not surecwhy but your messages are coming through to me > as text attachments which makes quoting them tricky... Hmmm, I did a group reply in mutt the last time, lets see if a direct reply and manuall CC: works right. > > Also, what would be the right exception to raise if not > > enough arguments were passed to a programm? > > I don't think there is a right answer, you can decide > for yourself, buty in general I try using the >>> prompt > with a deliberate error to see what Python does, thus: > > >>> range() > Traceback (most recent call last): > File "", line 1, in ? > TypeError: range expected at least 1 arguments, got 0 That`s a very useful hint :) (makes me ask myself why I didn`t thought about that yet ;)). > So it looks like TypeError but personally I'm not so sure > that works for argv... I think a simple usage message and > exit with non zero is fine. Well, that`s an option I didn`t thought of yet, I think I`ll do it that way then. Thanks or all your feedback. Best Regards Michael -- Michael Klier signature.asc Description: Digital signature ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] easygui question, again
Alan Gauld wrote: > "Rafael Bejarano" <[EMAIL PROTECTED]> wrote > >> that it would be a relatively simple matter to import the easygui >> module and call its functions using the terminal window, especially >> given that I have had success in the past importing other modules >> and >> calling their functions. > > I suspect that this is because you have been using > the standard library modules which Python knows how to find. > When you add a downloaded module, like easygui, you need > to let Python know how to find it. This is done in one of > three ways: > 1) Put it in the same folder from which you run python > 2) Put it in /lib/site-packages > 3) Put in in some other folder and add that folder to > your PYTHONPATH environment variable setting > > The easiest way for you is probably number 2. > > Try following this procedure: > > 1) Start Python to get a >>> prompt Which means, 1a) Open Terminal 1b) type python and press return > 2) import sys > 3) print sys.path > 4) use the mouse to select one of the lines that contains > "site-packages" It won't be a line, it will be a long list. Depending on how your Python is installed site-packages will be at a location like /System/Library/Frameworks/Python.framework/Versions/2.3/lib/python2.3/site-packages or /Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages > 5) Open a Finder window > 6) Navigate in Finder to the folder highlighted in your Python window > 7) If necessary navigate back up to site-packages itself > 8) Create a new sub folder and name it EasyGui > 9) Copy easygui.py into the new folder > 10) Create a new text file called EasyGui.pth > 11) enter the single line "EasyGui" (without the quotes) and save/exit > the editor This will work but instead of 8-11 I would just copy easygui.py into site-packages. Kent > 12) exit python and enter it again. > 13) type import easygui at the Python prompt. > > If no error messages appear you should have installed easygui > where python can see it. > > NB I typed that at my PC so its from memory and untested but > hopefully its close enough that you can figure out any discrepancies. > > HTH, > ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] Ipython and refreshing changed modules
Dear People Silly question, I'm using Ipython and importing python modules which I've written. After a code modification, is there an easy, quick way to refresh changed modules? I've googled for the solutions but the answers does not seem clear! Andy ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Ipython and refreshing changed modules
"Andy Cheesman" <[EMAIL PROTECTED]> wrote > I've written. After a code modification, is there an easy, quick way > to > refresh changed modules? Look at the reload() function. Alan G ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Ipython and refreshing changed modules
* Alan Gauld (Mon, 11 Jun 2007 13:27:41 +0100) > "Andy Cheesman" <[EMAIL PROTECTED]> wrote > > > I've written. After a code modification, is there an easy, quick way > > to > > refresh changed modules? > > Look at the reload() function. ...and the deep reload option (which is the primary functional enhancement to the standard Python console)... (Of course that's all pretty much documented in IPython's docs) ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Correct use of range function..
I see... Very Intriguing.> To: tutor@python.org> From: [EMAIL PROTECTED]> Date: Sun, 10 Jun 2007 18:16:00 +0100> Subject: Re: [Tutor] Correct use of range function..> > > "Adam Urbas" <[EMAIL PROTECTED]> wrote> >I discovered something about your revers word program here. I used> > the "for c in word" one.> > if you type an indented print after print c, then it will print the> > words vertically. Just thought I'd share that with you.> > You can achieve the same by missing out the comma at the end> of the print statement too. The comma suppresses a newline> character. By using a second print you put it back! So just> missing the comma achieves the same end result.> > Alan G.> > > On 6/10/07, Kent Johnson <[EMAIL PROTECTED]> wrote:> >> David Hamilton wrote:> >> > I just finished doing an exercise in a tutorial on the range > >> > function> >> > and while I got it to work, my answer seems ugly. I'm wondering > >> > if I'm> >> > missing something in the way I'm using the range function.> >> > The tutorial ask me to print a string backwards. My solution > >> > works, but> >> > it it just doesn't "feel" right :). My result is difficult to > >> > read and> >> > I feel like I'm probably over complicating the solution. > >> > Suggestions?> >> >> >> > word="reverse"> >> > #Start at the end of the string, count back to the start, > >> > printing each> >> > letter> >> > for i in range(len(word)-1,-1,-1):> >> > print word[i],> >>> >> That's probably the best you can do using range(). You could write> >> ln = len(word)> >> for i in range(ln):> >>print word[ln-i-1],> >>> >> but that is not much different.> >>> >> You can do better without using range; you can directly iterate the> >> letters in reverse:> >>> >> for c in word[::-1]:> >>print c,> >>> >> Kent> >> ___> >> Tutor maillist - Tutor@python.org> >> http://mail.python.org/mailman/listinfo/tutor> >>> > ___> > Tutor maillist - Tutor@python.org> > http://mail.python.org/mailman/listinfo/tutor> > > > > ___> Tutor maillist - Tutor@python.org> http://mail.python.org/mailman/listinfo/tutor _ Hotmail to go? Get your Hotmail, news, sports and much more! Check out the New MSN Mobile! http://mobile.msn.com___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Off-Topic - Mutt and mailing lists
Hi Michael, * On 11/06/07, Michael Klier wrote: > Alan Gauld wrote: > > I'm not surecwhy but your messages are coming through to me > > as text attachments which makes quoting them tricky... > > Hmmm, I did a group reply in mutt the last time, lets see if a direct > reply and manuall CC: works right. I don't know if you are aware, but mutt has a great list-reply command (bound to L by default) which "does the right thing" for mailing lists. Look up list-reply in the mutt manual. HTH Simon. -- Simon Hooper ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] easygui question, again
Where did you get this easygui thing you are trying to install. Is it the thing that says Compiled Python File? If so I have it. I've kinda been following your little chat here about it. I want to see if I could do it. On 6/11/07, Kent Johnson <[EMAIL PROTECTED]> wrote: > Alan Gauld wrote: > > "Rafael Bejarano" <[EMAIL PROTECTED]> wrote > > > >> that it would be a relatively simple matter to import the easygui > >> module and call its functions using the terminal window, especially > >> given that I have had success in the past importing other modules > >> and > >> calling their functions. > > > > I suspect that this is because you have been using > > the standard library modules which Python knows how to find. > > When you add a downloaded module, like easygui, you need > > to let Python know how to find it. This is done in one of > > three ways: > > 1) Put it in the same folder from which you run python > > 2) Put it in /lib/site-packages > > 3) Put in in some other folder and add that folder to > > your PYTHONPATH environment variable setting > > > > The easiest way for you is probably number 2. > > > > Try following this procedure: > > > > 1) Start Python to get a >>> prompt > > Which means, > 1a) Open Terminal > 1b) type python and press return > > > 2) import sys > > 3) print sys.path > > 4) use the mouse to select one of the lines that contains > > "site-packages" > > It won't be a line, it will be a long list. Depending on how your Python > is installed site-packages will be at a location like > /System/Library/Frameworks/Python.framework/Versions/2.3/lib/python2.3/site-packages > or > /Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages > > 5) Open a Finder window > > 6) Navigate in Finder to the folder highlighted in your Python window > > 7) If necessary navigate back up to site-packages itself > > 8) Create a new sub folder and name it EasyGui > > 9) Copy easygui.py into the new folder > > 10) Create a new text file called EasyGui.pth > > 11) enter the single line "EasyGui" (without the quotes) and save/exit > > the editor > > This will work but instead of 8-11 I would just copy easygui.py into > site-packages. > > Kent > > > 12) exit python and enter it again. > > 13) type import easygui at the Python prompt. > > > > If no error messages appear you should have installed easygui > > where python can see it. > > > > NB I typed that at my PC so its from memory and untested but > > hopefully its close enough that you can figure out any discrepancies. > > > > HTH, > > > > ___ > Tutor maillist - Tutor@python.org > http://mail.python.org/mailman/listinfo/tutor > ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] easygui question, again
Adam Urbas wrote: > Where did you get this easygui thing you are trying to install. Is it > the thing that says Compiled Python File? If so I have it. I've > kinda been following your little chat here about it. I want to see if > I could do it. Google 'python easygui' You probably want the .py file and the readme, not just the .pyc (compiled) file. Though it should work with just the .pyc file you won't have docs or the source to look at. Kent ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Off-Topic - Mutt and mailing lists
Simon Hooper wrote: > Hi Michael, > > * On 11/06/07, Michael Klier wrote: > > Alan Gauld wrote: > > > I'm not surecwhy but your messages are coming through to me > > > as text attachments which makes quoting them tricky... > > > > Hmmm, I did a group reply in mutt the last time, lets see if a direct > > reply and manuall CC: works right. > > I don't know if you are aware, but mutt has a great list-reply command > (bound to L by default) which "does the right thing" for mailing lists. > Look up list-reply in the mutt manual. Actually I wasn`t aware of "L", so thanks for the tip :D (mutt has a monster of a manpage ;) I am not surprised I missed that). I always use "r" which works with mailing lists that have the "Reply-To" header set (I know that`s not preferred, and I understand why ;)). I think there was a long thread about this topic a while ago on this list (could be another one too, can`t rember that on top of my head). And, maybe I got it wrong, I thought it would be preferred on this list to use the senders mail in To: and CC: to the list? Best Regards Michael -- Michael Klier signature.asc Description: Digital signature ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] Python IDE
Hi, I have been using Kdevelop so far to develop and a few bugs it inherits from Kate/Kwrite are really annoying me. It does not collapse quotes properly and there are other graphical glitches as well. Could someone suggest a few good IDE's for me to look at. I would need a IDE that haves syntax highlighting and I also really like type completion where the IDE gives you suggestions as you type. Extras like a good built in dictionary and anything else that makes coding faster or easier would be great. I also prefer a IDE that is for multiple languages, but I am willing to use a IDE that is only Python for now until those bugs get fixed in Kdevelop. Lastly, I am a Linux user, so the IDE would need to run natively on Linux. Thanks. -- Your friend, Scott Sent to you from a Linux computer using Kubuntu Version 7.04 (Feisty Fawn) ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Python IDE
you can use gedit with some plugins that make it pretty much like an ide, and its really fast. another really cool one is JEdit. That is what i used before i switched to vim to do everything. runs on everything, has what you are looking for. Eclipse with PyDev is cool, too. But a little heavy for me. hth On 6/11/07, scott <[EMAIL PROTECTED]> wrote: Hi, I have been using Kdevelop so far to develop and a few bugs it inherits from Kate/Kwrite are really annoying me. It does not collapse quotes properly and there are other graphical glitches as well. Could someone suggest a few good IDE's for me to look at. I would need a IDE that haves syntax highlighting and I also really like type completion where the IDE gives you suggestions as you type. Extras like a good built in dictionary and anything else that makes coding faster or easier would be great. I also prefer a IDE that is for multiple languages, but I am willing to use a IDE that is only Python for now until those bugs get fixed in Kdevelop. Lastly, I am a Linux user, so the IDE would need to run natively on Linux. Thanks. -- Your friend, Scott Sent to you from a Linux computer using Kubuntu Version 7.04 (Feisty Fawn) ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Python IDE
Try Komodo Edit from ActiveState. It's free (as in beer), it's cross-platform, and it's pretty darn good. I haven't used it on Linux myself, but it does have a Linux download. If being closed-source bothers you, Eclipse+PyDev might be your best option. scott wrote: > Hi, > > I have been using Kdevelop so far to develop and a few bugs it inherits > from Kate/Kwrite are really annoying me. It does not collapse quotes > properly and there are other graphical glitches as well. > > Could someone suggest a few good IDE's for me to look at. I would need > a IDE that haves syntax highlighting and I also really like type > completion where the IDE gives you suggestions as you type. > > Extras like a good built in dictionary and anything else that makes > coding faster or easier would be great. I also prefer a IDE that is for > multiple languages, but I am willing to use a IDE that is only Python > for now until those bugs get fixed in Kdevelop. > > Lastly, I am a Linux user, so the IDE would need to run natively on > Linux. Thanks. > > > ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Python IDE
"scott" <[EMAIL PROTECTED]> wrote > Could someone suggest a few good IDE's for me to look at. If you want to standardise on one environment that is industrial strength and multi platform go for eclipse. its heavyweight but does it all. Not only is it open source IDE king but several commercial companies are moving their in-house IDEs to it as well - Oracle, Borland and IBM to name but three. With pydev installed its pretty impressive, so far as I can tell the only missing feature is a GUI builder! > a IDE that haves syntax highlighting and I also really like type > completion where the IDE gives you suggestions as you type. Yep, Eclipse does both. > Extras like a good built in dictionary Not quite sure what you mean by that one. Can you illustrate? > coding faster or easier would be great. It does folding, has a built in debugger and class browser. > multiple languages, but I am willing to use a IDE > that is only Python It supports Java and C++ out of the box but there are plug-ins for everything from SQL to UML and Lisp. > Lastly, I am a Linux user, so the IDE would need to run natively on > Linux. It runs on most platforms so you can take your skills with you. The only snag is that it is big asnd beefy and needs a powerful box to run it well. If you want something lighter then try SPE, or even Pythonwin. I'm playing with wxPython's tools at the moment and ALa Mode looks promising too. But ulitimately I'm a long term vim user so tend to stick to the traditional Unix toolset personally... HTH, -- Alan Gauld Author of the Learn to Program web site http://www.freenetpages.co.uk/hp/alan.gauld ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Python IDE
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Alan Gauld wrote: > "scott" <[EMAIL PROTECTED]> wrote > >> Could someone suggest a few good IDE's for me to look at. > > If you want to standardise on one environment that is industrial > strength and multi platform go for eclipse. its heavyweight > but does it all. > > Not only is it open source IDE king but several commercial > companies are moving their in-house IDEs to it as well - Oracle, > Borland and IBM to name but three. > > With pydev installed its pretty impressive, so far as I can tell > the only missing feature is a GUI builder! Well, the Subversion support is painful. Dogslow. Eclipse is slow, but the svn plugin that I've seen my colleagues use was IMHO (a Linux based developer, emacs + commandline svk, who complains that svk is painful slow *g*) unuseable for work. (With unusable I mean, that I was able to branch trunk, fix some small errors, run the unittests, merge the branch with svk while eclipse was still running an "Update Workspace" command.) Andreas -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.2 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFGbb3KHJdudm4KnO0RAkqDAJ4p0z+7KNm09jCgxp1CPnAI1AjatACfV0xn Hn9Au6XYc/71zLRyBoEukGE= =QzeR -END PGP SIGNATURE- ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Python IDE
Personally, I use and love Komodo (the full version, although Komodo Edit is nice). I didn't *expect* to like it, but it won me over with ease. On 6/11/07, scott <[EMAIL PROTECTED]> wrote: >Could someone suggest a few good IDE's for me to look at. ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Python IDE
"Andreas Kostyrka" <[EMAIL PROTECTED]> wrote in > Well, the Subversion support is painful. Dogslow. Eclipse is slow, > but > the svn plugin that I've seen my colleagues use was IMHO (a Linux > based > developer, emacs + commandline svk, who complains that svk is > painful > slow *g*) unuseable for work. Haven't used it with subversion, in fact I've never used subversion! (We use Borland tools at work) But I did say eclipse was heavyweight and needed a big PC. :-) My old laptop didn't like it at all and my 600MHz G3 iBook goes to sleep with it. but my nice new 3GHz dual core with 2G Ram seems perfectly happy running it. So if you have a PC with that general kind of spec Eclipse is worth a try. Alan G. ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Python IDE
"Alan Gauld" <[EMAIL PROTECTED]> wrote > It supports Java and C++ out of the box but there are Actually C++ is a plug-in too, but free ones are available... Alan G. ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Python IDE
On Monday 11 June 2007 13:01, scott wrote: > Hi, > > I have been using Kdevelop so far to develop and a few bugs it inherits > from Kate/Kwrite are really annoying me. It does not collapse quotes > properly and there are other graphical glitches as well. > > Could someone suggest a few good IDE's for me to look at. I would need > a IDE that haves syntax highlighting and I also really like type > completion where the IDE gives you suggestions as you type. > > Extras like a good built in dictionary and anything else that makes > coding faster or easier would be great. I also prefer a IDE that is for > multiple languages, but I am willing to use a IDE that is only Python > for now until those bugs get fixed in Kdevelop. > > Lastly, I am a Linux user, so the IDE would need to run natively on > Linux. Thanks. Others have suggested free IDE's. But I like 'wing'. Cost a little but works very well. -- John Fabiani ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] cannot pickle instancemethod objects
Dear everyone, I got a problem while pickling a class object. I have done something as below: pickleFile = open(filename, 'wb') pickle.dump(matcher, pickleFile) pickleFile.close() where matcher is class object and I got the follow errors: Traceback (most recent call last): File "/usr/lib/python2.5/pickle.py", line 1362, in dump Pickler(file, protocol).dump(obj) File "/usr/lib/python2.5/pickle.py", line 224, in dump self.save(obj) File "/usr/lib/python2.5/pickle.py", line 286, in save f(self, obj) # Call unbound method with explicit self File "/usr/lib/python2.5/pickle.py", line 725, in save_inst save(stuff) File "/usr/lib/python2.5/pickle.py", line 286, in save f(self, obj) # Call unbound method with explicit self File "/usr/lib/python2.5/pickle.py", line 649, in save_dict self._batch_setitems(obj.iteritems()) File "/usr/lib/python2.5/pickle.py", line 663, in _batch_setitems save(v) File "/usr/lib/python2.5/pickle.py", line 286, in save f(self, obj) # Call unbound method with explicit self File "/usr/lib/python2.5/pickle.py", line 725, in save_inst save(stuff) File "/usr/lib/python2.5/pickle.py", line 286, in save f(self, obj) # Call unbound method with explicit self File "/usr/lib/python2.5/pickle.py", line 649, in save_dict self._batch_setitems(obj.iteritems()) File "/usr/lib/python2.5/pickle.py", line 663, in _batch_setitems save(v) File "/usr/lib/python2.5/pickle.py", line 306, in save rv = reduce(self.proto) File "/usr/lib/python2.5/copy_reg.py", line 69, in _reduce_ex raise TypeError, "can't pickle %s objects" % base.__name__ TypeError: can't pickle instancemethod objects Does anybody please point me what could be a problem here? Thanks very much for your help! da ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Python IDE
Hi, I'm supporting John's opinion. WingIDE rocks!! I use Linux at work, Windows & Mac at home, I notice the Python editor on Windows also hints you the syntax as you type. Enjoy! PB ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] clarification on os.path.walk
Hi,
I have a program like this.
import os,os.path
import re
def print_files(arg,dir,files):
'''print 'arg', arg
print 'dir', dir
print 'files',files'''
for file in files:
path = os.path.join(dir,file)
path = os.path.normcase(path)
if re.search(r".*\.txt",path):
print path
os.path.walk('.',print_files,1)
My doubt is that what does the argument stand for in this program?
os.path.walk('.',print_files,0)
os.path.walk('.',print_files,1)
os.path.walk('.',print_files,2)
all seems to be rendering the same output. Can anyone clarify when this
argument is used.
Thanks,
Chandru
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Re: [Tutor] clarification on os.path.walk
Chandrashekar wrote:
> Hi,
>
> I have a program like this.
>
> import os,os.path
> import re
>
> def print_files(arg,dir,files):
> '''print 'arg', arg
> print 'dir', dir
> print 'files',files'''
> for file in files:
> path = os.path.join(dir,file)
> path = os.path.normcase(path)
> if re.search(r".*\.txt",path):
> print path
>
>
> os.path.walk('.',print_files,1)
>
> My doubt is that what does the argument stand for in this program?
> os.path.walk('.',print_files,0)
> os.path.walk('.',print_files,1)
> os.path.walk('.',print_files,2)
>
> all seems to be rendering the same output. Can anyone clarify when
> this argument is used.
>>> import os
>>> help(os.path.walk)
Help on function walk in module ntpath:
walk(top, func, arg)
Directory tree walk with callback function.
For each directory in the directory tree rooted at top (including top
itself, but excluding '.' and '..'), call func(arg, dirname, fnames).
dirname is the name of the directory, and fnames a list of the names of
the files and subdirectories in dirname (excluding '.' and '..'). func
may modify the fnames list in-place (e.g. via del or slice assignment),
and walk will only recurse into the subdirectories whose names remain in
fnames; this can be used to implement a filter, or to impose a specific
order of visiting. No semantics are defined for, or required of, arg,
beyond that arg is always passed to func. It can be used, e.g., to pass
a filename pattern, or a mutable object designed to accumulate
statistics. Passing None for arg is common.
HTH,
-Luke
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