[Distutils] distutils 0.1 problem and fix
Thu, 30 Sep 1999 20:46:46 -0400
On 29 September 1999, Amos Latteier said:
> Three cheers for distutils 0.1!
> Unfortunately it fails to install itself on my NT box.
Details, details. You Windows people are so picky. ;-)
> running install_py
> creating D:\Python1.5.2
> Traceback (innermost last):
> File "setup.py", line 22, in ?
> packages = ['distutils', 'distutils.command'],
[...yikes -- at least my tracebacks aren't as bad as JPython's...]
> File "distutils\util.py", line 318, in copy_tree
> mkpath (dst, verbose=verbose)
> File "distutils\util.py", line 74, in mkpath
> raise DistutilsFileError, "%s: %s" % (head, errstr)
> distutils.errors.DistutilsFileError: D:\Python1.5.2: File exists
> To fix this I changed line 317 of distutils/util.py to:
> if not dry_run and not os.path.exists(os.path.normpath(dst)):
Hmm, no, this is really mkpath's fault. But thanks for reminding me
of the existence of normpath() -- somehow I forgot all about it.
Anyone on a Windows box with Python and the Distutils handy, please try
this out to see if I've fixed it. First, verify the bug:
>>> from distutils.util import mkpath
>>> mkpath ("\blah\")
where "\blah" doesn't already exist on the current drive. Should blow
up with that "File exists" error. Try it without the trailing
Now apply this patch (in "Distutils-0.1\distutils"):
*** util.py 1999/09/29 12:14:16 1.7
--- util.py 1999/10/01 00:25:18
*** 39,40 ****
--- 39,42 ----
+ name = os.path.normpath (name)
if os.path.isdir (name):
*** 45,48 ****
(head, tail) = os.path.split (name)
- if not tail: # in case 'name' has trailing
- (head, tail) = os.path.split (head)
tails = [tail] # stack of lone dirs to create
--- 47,48 ----
and try it again. Try it with and without the trailing backslash, on
different and the same directories.
Of course, I'll do all this tomorrow at work, where I have access to a
Windows machine. Let me know if you find other bugs in mkpath though --
this is a surprisingly tricky little thing to get right.
Greg Ward - software developer email@example.com
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