🌐 Mailman 3 February 2000 - Pythonmac-SIG - python.org

newbie's Q
by KAWASAKI April 25, 2000

April 25, 2000

hello,all I am a newbie to mac python. when I double click a module in whatever folder the interpreter says to me it can't find the module. for example. Double click $PYTHON:Lib:binhex.py --->PythonInterpreter:: can't open file 'binhex.py:' I can import the binhex.py from the interpreter command line. I suspect it is not a problem of path settings.( indeed $PYTHON:Lib: is in the path) I thought I had no trouble when I was using ver 1.4 Please tell me what's wrong. Thank you in advance.

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Re: [Pythonmac-SIG] os.path.getsize()
by JoanCarles p Casasín March 3, 2000

March 3, 2000

Nils Kassube wrote: >Guten Abend. > >I hope, I don't miss something obvious again :-) >--cut-- >>>> import os.path >>>> os.path.getsize("a.py") >Traceback (innermost last): > File "<stdin>", line 1, in ? > File "Macintosh HD:Programme:Python 1.5.2c1:Lib:macpath.py", line 107, >in getsize > return st[stat.ST_SIZE] >NameError: stat >--cut-- Many many time ago Jack Jansen answered this question to me: ---------------------------------- Jack Jansen: There are a few ways to do this, depending on what you're interested in. If you want to get the size of the data fork only the best method is os.stat(). The sixth value is the size of the data fork. This method is portable to other platforms. If you want the full size use os.xstat(). rv[6] is again data fork size, rv[10] is the resource fork size. xstat is mac-specific. You can also use the GetFInfo() method of a macfs.FSSpec object, if that is handier. Again, mac-specific. Note that all these methods give you the number of bytes in the file, *not* the amount of space it occupies on disk (the finder info command gives both). Does anyone know how to obtain the diskspace numbers? ---------------------------------- >What's wrong? It worked on Win32. You're now using a Mac! ;) JoanCarles :::!!!::: joanca(a)typerware.com http://www.typerware.com

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GUSI2... status/etc?
by Chris Jacobson March 1, 2000

March 1, 2000

Whats the status on getting it over to GUSI2? I'd like to get at the source & projects that already has whatever work is done, to help. (why rewrite the blueprints?) - Chris Jacobson

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Re: [Pythonmac-SIG] os.path.getsize()
by Jack Jansen Feb. 29, 2000

Feb. 29, 2000

This is a bug in macpath.py. It's fixed in the CVS archive, and the fix will be in the next release. As I didn't fix (or break:-) this I think a possible workaround may be to add an "import stat" to the top of macpath.py. But of course the comments about getsize() maybe not returning the info you're looking for is true too, -- Jack Jansen | ++++ stop the execution of Mumia Abu-Jamal ++++ Jack.Jansen(a)oratrix.com | ++++ if you agree copy these lines to your sig ++++ www.oratrix.nl/~jack | see http://www.xs4all.nl/~tank/spg-l/sigaction.htm

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Re: [Pythonmac-SIG] Moving files
by Erik van Blokland Feb. 29, 2000

Feb. 29, 2000

-- JoanCarles p Casasín [2/28/00 1:27 PM]: >>Hi, >> >>is there a function available in Python to move a file >>from one directory to another? > >import findertools > >findertools.move(file_or_folder, destination_folder) this one is faster: import os srcpath = 'the:old:location.txt' # fill in your paths here! dstpath = 'the:new:location.txt' os.renames(srcpath, dstpath) findertools instructs the Finder via appleevents to move the files. When you're moving a lot the AE mechanims gets clogged and cause the Finder the protest/crash. os.renames just changes the directory directly. erik van blokland -- letterror

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Re: [Pythonmac-SIG] Nested lists
by Jack Jansen Feb. 29, 2000

Feb. 29, 2000

> When I try to implement this in a function I get something like: > > def mklist(num): > return map(lambda x:[] * num, range(num)) > > and mklist(4) yields [[], [], [], [], [], []] > > This works in 'Python interactive'. In a normal Python window I get a NameError. This is bound to be in an FAQ somewhere: the lambda has its own namespace, i.e. within the lambda body you can see (1) names within that body and (2) global names. So, you can't see the names in the intermedeate function. The workaround is to abuse the parameter mechanism: def mklist(num): return map(lambda x, num=num: []*num, range(num)) -- Jack Jansen | ++++ stop the execution of Mumia Abu-Jamal ++++ Jack.Jansen(a)oratrix.com | ++++ if you agree copy these lines to your sig ++++ www.oratrix.nl/~jack | see http://www.xs4all.nl/~tank/spg-l/sigaction.htm

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Nested lists
by Max Haas Feb. 29, 2000

Feb. 29, 2000

Hi, ask for help for a newbie question (can't find the starting point for a solution) Question: I need some void lists, e.g. map(lambda x:[] * 6, range(6)) Works fine. When I try to implement this in a function I get something like: def mklist(num): return map(lambda x:[] * num, range(num)) and mklist(4) yields [[], [], [], [], [], []] This works in 'Python interactive'. In a normal Python window I get a NameError. I can't figure out the basic difference between the behaviour of 'Python interactive' and a 'normal' Python window. Any help much appreciated. Max

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Moving files
by Pieter Claerhout Feb. 28, 2000

Feb. 28, 2000

Hi, is there a function available in Python to move a file from one directory to another? Kind regards, P.

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Re: [Pythonmac-SIG] Moving files
by JoanCarles p Casasín Feb. 28, 2000

Feb. 28, 2000

Pieter Claerhout wrote: >Hi, > >is there a function available in Python to move a file >from one directory to another? import findertools findertools.move(file_or_folder, destination_folder) Hope this helps, JoanCarles :::!!!::: joanca(a)typerware.com http://www.typerware.com

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Re: [Pythonmac-SIG] Applets and an extended python
by Jack Jansen Feb. 25, 2000

Feb. 25, 2000

> > Hello, > > i still have problems using python without console window. Using the binary > distribution for the Mac i have no problem creating Applets, but what i need > ist an Applet that uses the Phyton-interpreter i have created. What > steps do > i have to go through? I didn't find anything in the dokumentation and looking > through the source seems a bit too much to me :) I'm not sure what you mean by "the Python interpreter I have created", but if you mean that you've built a static Python interpreter (probably with your own extension modules or so) what you want is doable. The main program (which is in macapplication.c) is the same for PythonInterpreter and applets (actually, the BuildApplet simply uses the PythonInterpreter executable to build applets). It checks for a 'PYC ' resource named '__main__' in the application resource fork, and if it finds that it goes in applet-mode otherwise in application-mode. So by copying the PYC resource from an applet to your application you have an applet that uses your application as the interpreter. If people want to do this more often I could add an option to BuildApplet where it wouldn't always use PythonInterpreter to build applets but where you could ask it to use a different file. -- Jack Jansen | ++++ stop the execution of Mumia Abu-Jamal ++++ Jack.Jansen(a)oratrix.com | ++++ if you agree copy these lines to your sig ++++ www.oratrix.nl/~jack | see http://www.xs4all.nl/~tank/spg-l/sigaction.htm

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