Re: os.path.split gets confused with combined \\ and /
Stef Mientki wrote: I've to distribute both python files and data files. Everything is developed under windows and now the datafiles contains paths with mixed \\ and /. For your info: Some (!!!) parts of MS Windows understand forward slashes as path separators and disallows them in file names, so you can often get away with mixed paths. However, no POSIX system will understand a backslash as path separator, which is a normal (though unusual) character in a file name. Under windows everthing is working well, but under Ubuntu / Fedora sometimes strange errors occurs. Now I was thinking that using os.path.split would solve all problems, but if I've the following relative path path1/path2\\filename.dat split will deliver the following under windows path = path1 / path2 filename = filename.dat while under Linux it will give me path = path1 filename = path\\filename.dat So I'm now planning to replace all occurences of os.path.split with a call to the following function def path_split ( filename ) : # under Ubuntu a filename with both # forward and backward slashes seems to give trouble # already in os.path.split filename = filename.replace ( '\\','/') return os.path.split ( filename ) how do others solve this problem ? Are there better ways to solve this problem ? Your data files must not contain OS-dependent paths. So, I would recommend that you simply use forward slashes exclusively there, because those are most common as path separators. Under POSIX systems like Ubuntu, you can then use them 'as-is', while under win32 you would first convert them to paths with backslashes (os.path.separator). Generalised, you could do something like this: indep_path = string.split(line, data_path_separator) native_path = os.path.join(indep_path) 'data_path_separator' would then of course have to be the type of path separator that is defined for your data format, per above I would suggest slashes. Uli -- Sator Laser GmbH Geschäftsführer: Thorsten Föcking, Amtsgericht Hamburg HR B62 932 -- http://mail.python.org/mailman/listinfo/python-list
os.path.split gets confused with combined \\ and /
hello, just wonder how others solve this problem: I've to distribute both python files and data files. Everything is developed under windows and now the datafiles contains paths with mixed \\ and /. Under windows everthing is working well, but under Ubuntu / Fedora sometimes strange errors occurs. Now I was thinking that using os.path.split would solve all problems, but if I've the following relative path path1/path2\\filename.dat split will deliver the following under windows path = path1 / path2 filename = filename.dat while under Linux it will give me path = path1 filename = path\\filename.dat So I'm now planning to replace all occurences of os.path.split with a call to the following function def path_split ( filename ) : # under Ubuntu a filename with both # forward and backward slashes seems to give trouble # already in os.path.split filename = filename.replace ( '\\','/') return os.path.split ( filename ) how do others solve this problem ? Are there better ways to solve this problem ? thanks, Stef Mientki -- http://mail.python.org/mailman/listinfo/python-list
Re: os.path.split gets confused with combined \\ and /
On Sun, May 17, 2009 at 3:11 AM, Stef Mientki stef.mien...@gmail.com wrote: hello, just wonder how others solve this problem: I've to distribute both python files and data files. Everything is developed under windows and now the datafiles contains paths with mixed \\ and /. Under windows everthing is working well, but under Ubuntu / Fedora sometimes strange errors occurs. Now I was thinking that using os.path.split would solve all problems, but if I've the following relative path path1/path2\\filename.dat split will deliver the following under windows path = path1 / path2 filename = filename.dat while under Linux it will give me path = path1 filename = path\\filename.dat So I'm now planning to replace all occurences of os.path.split with a call to the following function def path_split ( filename ) : # under Ubuntu a filename with both # forward and backward slashes seems to give trouble # already in os.path.split filename = filename.replace ( '\\','/') return os.path.split ( filename ) how do others solve this problem ? Are there better ways to solve this problem ? Just always use forward-slashes for paths in the first place since they work on both platforms. But your technique seems a reasonable way of dealing with mixed-up datafiles, since you're in that situation. Cheers, Chris -- http://blog.rebertia.com -- http://mail.python.org/mailman/listinfo/python-list
