setup: fix the py2exe logic to work with py3
TortoiseHg still uses (the modernized) py2exe packaging, but the build was
failing since `py2exe.Distribution` was removed.
One thing to note is that later in this module, there's a hack to include
`distutils` when building from a virtualenv. While `import distutils` works in
`hg debugshell` when built with py2, it doesn't work in py3. I'm not sure why-
I don't see it in `library.zip` either. It doesn't seem to break anything
though.
Differential Revision: https://phab.mercurial-scm.org/D12553
#!/usr/bin/env python3
#
# An example hgweb CGI script, edit as necessary
# See also https://mercurial-scm.org/wiki/PublishingRepositories
# Path to repo or hgweb config to serve (see 'hg help hgweb')
config = b"/path/to/repo/or/config"
# Uncomment and adjust if Mercurial is not installed system-wide
# (consult "installed modules" path from 'hg debuginstall'):
# import sys; sys.path.insert(0, "/path/to/python/lib")
# Uncomment to send python tracebacks to the browser if an error occurs:
# import cgitb; cgitb.enable()
from mercurial import demandimport
demandimport.enable()
from mercurial.hgweb import hgweb, wsgicgi
application = hgweb(config)
wsgicgi.launch(application)