[Distutils] pypi and easy_install

[Phillip J. Eby]

At 02:08 PM 1/19/2008 -0500, Phillip J. Eby wrote:
>Oh, and if tarfile is present, you can open a tarfile for writing
>with 'w:gz' or 'w:bz2' to have it apply the compression while
>building, which is probably more efficient.  However, if the
>appropriate module isn't available, it'll raise a
>tarfile.CompressionError at creation time.  So the code could be
>something like:
>
>      try:
>          import tarfile
>      except ImportError:
>          tarfile = None
>
>      if tarfile is not None:
>          ext = compress_ext.get(compress, '')
>          try:
>              tar = tarfile.open(archive_name+ext, "w"+ext.replace('.',':'))
>          except tarfile.CompressionError:
>              tar = tarfile.open(archive_name, "w")
>          tar.add(base_dir)
>          tar.close()
>          if tar.name == archive_name+ext:
>              return tar.name  # we're done

Actually, this bit above is wrong, as it turns out tar.name will 
never include the extra extension.  :(  So, a flag is needed in place 
of using tar.name.