🌐 Mailman 3 July 2008 - Python-list - python.org

Re: convert unicode characters to visibly similar ascii characters
by Jim July 2, 2008

July 2, 2008

Peter Bulychev wrote: > I want to convert unicode character into ascii one. You have to make some arbitrary choices of what to translate. Based on some materials on effbot's site, and a recipe, I made ftp://alan.smcvt.edu/hefferon/unicode2ascii.py which has at least some of what you are looking for. $ grep HYPHEN unicode2ascii.py u'\N{SOFT HYPHEN}':u'-', u'\N{HYPHEN}':u'-', u'\N{NON-BREAKING HYPHEN}':u'-', u'\N{SOFT HYPHEN}': '-', No doubt I have some terrible gaffes and some things missing. Corrections appreciated. Jim

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Re: simple UnZip
by noydb July 2, 2008

July 2, 2008

On Jul 2, 10:07 am, Cédric Lucantis <o...(a)no-log.org> wrote: > Le Wednesday 02 July 2008 15:39:51 noydb, vous avez écrit : > > > > > > > Can someone help me with this script, which I found posted elsewhere? > > I'm trying to figure out what is going on here so that I can alter it > > for my needs, but the lack of descriptive names is making it > > difficult. And, the script doesn't quite do anything worthwhile -- it > > unzips one file from a zipfile, not all files in a zipfile. > > > *** > > import zipfile, os, sys, glob > > > os.chdir("C:\\Temp") > > zips = glob.glob('*.zip') > > > for fzip in zips: > > if zipfile.is_zipfile(fzip): > > print fzip," is a zip" > > z = zipfile.ZipFile(fzip,'r') > > lstName = z.namelist() > > sHgt = lstName[0] > > print "Unpacking",sHgt > > hgt = z.read(sHgt) > > fHgt = open(sHgt,'wb') > > fHgt.write(hgt) > > # fHgt.flush > > fHgt.close > > print "Finished" > > *** > > > I changed it somewhat to > > &&& > > import zipfile, os, sys > > > event_zip = ("C:\\Temp\\data4event.zip") > > > z = zipfile.ZipFile(event_zip, 'r') > > > zList = z.namelist() > > > for zItem in zList: > > print "Unpacking",zItem > > zRead = z.read(zItem) > > z1File = open(zItem,'wb') > > z1File.write(zRead) > > z1File.close > > namelist() returns a list of relative file names, so you can just put them > anywhere you want with: > > zlFile = open(os.path.join(DESTDIR, zItem), 'wb') > > or change the current directory, but the first way should be preferred. > > > print "Finished" > > &&& > > > This works, but I want to be able to specify a different output > > location. > > -- > Cédric Lucantis- Hide quoted text - > > - Show quoted text - Thanks everyone! I did read the help on zipfile. I know it was simple, but for newbies, sometimes it just helps to see how it is done and learn from that.

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simple UnZip
by noydb July 2, 2008

July 2, 2008

Can someone help me with this script, which I found posted elsewhere? I'm trying to figure out what is going on here so that I can alter it for my needs, but the lack of descriptive names is making it difficult. And, the script doesn't quite do anything worthwhile -- it unzips one file from a zipfile, not all files in a zipfile. *** import zipfile, os, sys, glob os.chdir("C:\\Temp") zips = glob.glob('*.zip') for fzip in zips: if zipfile.is_zipfile(fzip): print fzip," is a zip" z = zipfile.ZipFile(fzip,'r') lstName = z.namelist() sHgt = lstName[0] print "Unpacking",sHgt hgt = z.read(sHgt) fHgt = open(sHgt,'wb') fHgt.write(hgt) # fHgt.flush fHgt.close print "Finished" *** I changed it somewhat to &&& import zipfile, os, sys event_zip = ("C:\\Temp\\data4event.zip") z = zipfile.ZipFile(event_zip, 'r') zList = z.namelist() for zItem in zList: print "Unpacking",zItem zRead = z.read(zItem) z1File = open(zItem,'wb') z1File.write(zRead) z1File.close print "Finished" &&& This works, but I want to be able to specify a different output location. The scenario is that the zip file will always be the same (gets copied over daily), but it needs to be unzipped to a specific different directory. Can anyone help? Thanks!

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Distribute ctypes based modules
by rocksportrocker July 2, 2008

July 2, 2008

Hi, how do you distribute ctypes based modules on a linux machine ? What does your setup.py look like ? I have to copy my shared library to /usr/lib or another common place, but I would prefer .../site-packages/... In the latter case I have to modify LD_LIBRARY_PATH oder some ld.so.conf configuration file. So, what is the prefered method for this task ? Greetings, Uwe

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Re: dynamically load from module import xxx
by mgi820＠motorola.com July 2, 2008

July 2, 2008

In article <mailman.1019.1214925114.1044.python-list(a)python.org>, Neal Becker <ndbecker2(a)gmail.com> wrote: >What is a good way to emulate: > >from module import xxx >where 'module' is a dynamically generated string? > >__import__ ('modulename', fromlist=['xxx']) > >seems to be what I want, but then it seems 'xxx' is not placed in globals() >(which makes me wonder, what exactly did fromlist do?) You might want to read what "help(__import__)" tells you. It sounds like what you want is: mynamespace['xxx'] = __import__('modulename.xxx', fromlist=['xxx']) Seems a bit weird to me, but that's the way it is, and I'm sure there is a reason for it. Good luck. Gary Duzan Motorola H&NM

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Re: Why is recursion so slow?
by Nick Craig-Wood July 2, 2008

July 2, 2008

Rich Harkins <rharkins(a)nettrekker.com> wrote: > Nick Craig-Wood wrote: > [snip] > > By definition any function in a functional language will > > always produce the same result if given the same arguments, so you can > > memoize any function. > > > > Ah, so that's why time.time() seems to be stuck... ;) ;-) As Bruno noted I should have said "pure functional language" above. As for how you deal with IO in a pure functional language, well, either you make it impure (eg Erlang or Lisp) - functions can have side effects, or you do other complicated things like monads in Haskell! -- Nick Craig-Wood <nick(a)craig-wood.com> -- http://www.craig-wood.com/nick

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Re: How to pickle bound methods
by srinivasan srinivas July 2, 2008

July 2, 2008

I am writing client-server program. The server will send a methodname and its arguments to a client. The client has to execute the method and return back the results. Thanks, Srini ----- Original Message ---- From: Peter Otten <__peter__(a)web.de> To: python-list(a)python.org Sent: Wednesday, 2 July, 2008 5:15:41 PM Subject: Re: How to pickle bound methods srinivasan srinivas wrote: (Please don't top-post) > It works will for instance and class methods. But it doesn't work for > static methods. Can you tel me how to pickle static methods as well?? For static methods pickling is not so easy because these don't carry information about the class they belong to. What are you trying to do? Peter -- http://mail.python.org/mailman/listinfo/python-list Explore your hobbies and interests. Go to http://in.promos.yahoo.com/groups/

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How to modify the data in a binary file?
by Jim Brown July 2, 2008

July 2, 2008

Hi all, I'm a Python newbie, so please pardon me if my question may look a little silly. :) I want to modify a binary file p.data (which has some C-style "short" integers -- 16-bit integers) in such a way: The bit m and bit n of every "short int" si in the file are set to 1, and the left bits in si are not affected. I.e, for the first short int in the file, I think the code would be: import os f = os.open("/root/p.data", os.O_RDWR) str = os.read(f, 2) #assume the short int in str is 0x0102, and I want to change it to 0x8182 (changing bit7 and bit15 to 1). #how to change the str into a short int variable si?? ??? si = (si & ~0x8080) | 0x8080 # how to change the si to a two-byte str? ??? os.lseek(f, 0, 0); os.write(f, si) os.close(f) Thanks a lot!

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Re: How to pickle bound methods
by Peter Otten July 2, 2008

July 2, 2008

srinivasan srinivas wrote: (Please don't top-post) > It works will for instance and class methods. But it doesn't work for > static methods. Can you tel me how to pickle static methods as well?? For static methods pickling is not so easy because these don't carry information about the class they belong to. What are you trying to do? Peter

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Re: How to pickle bound methods
by srinivasan srinivas July 2, 2008

July 2, 2008

HI Peter, It works will for instance and class methods. But it doesn't work for static methods. Can you tel me how to pickle static methods as well?? Thanks, Srini ----- Original Message ---- From: Peter Otten <__peter__(a)web.de> To: python-list(a)python.org Sent: Wednesday, 2 July, 2008 12:53:19 PM Subject: Re: How to pickle bound methods srinivasan srinivas wrote: > I would like to know how to pickle a bound method?? $ cat pickle_method.py import copy_reg import new def make_instancemethod(inst, methodname): return getattr(inst, methodname) def pickle_instancemethod(method): return make_instancemethod, (method.im_self, method.im_func.__name__) copy_reg.pickle(new.instancemethod, pickle_instancemethod, make_instancemethod) if __name__ == "__main__": import pickle class A(object): def __init__(self, who): self.who = who def alpha(self): print "Hello,", self.who FILENAME = "method.pickle" import sys args = sys.argv[1:] if args: a = A(args[0]) m = a.alpha pickle.dump(m, open(FILENAME, "wb")) else: m = pickle.load(open(FILENAME, "rb")) m() $ python pickle_method.py world $ python pickle_method.py Hello, world $ python pickle_method.py Srini $ python pickle_method.py Hello, Srini Peter -- http://mail.python.org/mailman/listinfo/python-list Bring your gang together. Do your thing. Find your favourite Yahoo! group at http://in.promos.yahoo.com/groups/

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