John J. Lee wrote: > Stef Mientki <[EMAIL PROTECTED]> writes: > >> It looks like sometimes a single backslash is replaced by a double backslash, >> but sometimes it's not ??? >> See the error message below, >> the first backslash is somewhere (not explicitly in my code) replaced, >> but the second is not ??? >> Is it in general better to use double backslash in filepaths ? > [...] >> IOError: [Errno 2] No such file or directory: >> 'D:\\data_to_test\test_global.pd' > > '\t' is the tab character. '\d' is not a valid escape sequence, so > the backslash there survives intact. repr() normalises the string on > output, so the (single!) backslash in '\d' is displayed, as always in > the repr of strings, as '\\'. > > You should either use this: > > 'D:\\data_to_test\\test_global.pd' > > > Or this: > > r'D:\data_to_test\test_global.pd' > > See also: > > http://www.python.org/doc/faq/general/#why-can-t-raw-strings-r-strings-end-with-a-backslash > > > Or even this, which will work unless you're using crufty software that > doesn't like slash path separators (cmd.exe being one of those pieces > of software): > > 'D:/data_to_test/test_global.pd' > > > John
thanks John and Michael, this is a very helpful explanation. cheers, Stef -- http://mail.python.org/mailman/listinfo/python-list
