hgweb.cgi

py3: avoid iterating over a literal bytes in highlight

In Python 3, iterating over a bytes literal yields integers. Since we
use the value in `text.replace()`, this fails on Python 3 with the
following trackback:

    Traceback (most recent call last):
      File "/usr/lib/python3/dist-packages/mercurial/hgweb/hgwebdir_mod.py", line 378, in run_wsgi
        for r in self._runwsgi(req, res):
      File "/usr/lib/python3/dist-packages/mercurial/hgweb/hgweb_mod.py", line 326, in run_wsgi
        for r in self._runwsgi(req, res, repo):
      File "/usr/lib/python3/dist-packages/mercurial/hgweb/hgweb_mod.py", line 449, in _runwsgi
        return getattr(webcommands, cmd)(rctx)
      File "/usr/lib/python3/dist-packages/mercurial/hgweb/webcommands.py", line 211, in file
        return _filerevision(web, webutil.filectx(web.repo, web.req))
      File "/usr/lib/python3/dist-packages/hgext/highlight/__init__.py", line 72, in filerevision_highlight
        pygmentize(web, b'fileline', fctx, web.tmpl)
      File "/usr/lib/python3/dist-packages/hgext/highlight/__init__.py", line 58, in pygmentize
        field, fctx, style, tmpl, guessfilenameonly=filenameonly
      File "/usr/lib/python3/dist-packages/hgext/highlight/highlight.py", line 62, in pygmentize
        text = text.replace(c, b'')
    TypeError: a bytes-like object is required, not 'int'

#!/usr/bin/env python
#
# 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 = "/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)