Fetching dependencies fails with Python exception

[the42]

When pushing a new version of my Go app to Heroku, the process fails with:

cd .; hg clone -U https://code.google.com/p/go-uuid /tmp/build_3bf11f97-2087-47a6-a45f-119ef80e1247/.heroku/g/src/code.google.com/p/go-uuid Traceback (most recent call last): File "/app/tmp/cache/venv/bin/hg", line 36, in mercurial.util.setbinary(fp) File "/app/tmp/cache/venv/lib/python2.7/site-packages/mercurial/demandimport.py", line 102, in getattribute self._load() File "/app/tmp/cache/venv/lib/python2.7/site-packages/mercurial/demandimport.py", line 74, in _load mod = _hgextimport(_import, head, globals, locals, None, level) File "/app/tmp/cache/venv/lib/python2.7/site-packages/mercurial/demandimport.py", line 43, in _hgextimport return importfunc(name, globals, args) File "/app/tmp/cache/venv/lib/python2.7/site-packages/mercurial/util.py", line 16, in from i18n import File "/app/tmp/cache/venv/lib/python2.7/site-packages/mercurial/demandimport.py", line 130, in _demandimport mod = _hgextimport(_origimport, name, globals, locals) File "/app/tmp/cache/venv/lib/python2.7/site-packages/mercurial/demandimport.py", line 43, in _hgextimport return importfunc(name, globals, args) File "/app/tmp/cache/venv/lib/python2.7/site-packages/mercurial/i18n.py", line 23, in t = gettext.translation('hg', localedir, fallback=True) File "/usr/local/lib/python2.7/gettext.py", line 465, in translation mofiles = find(domain, localedir, languages, all=1) File "/usr/local/lib/python2.7/gettext.py", line 437, in find for nelang in _expand_lang(lang): File "/usr/local/lib/python2.7/gettext.py", line 131, in _expand_lang from locale import normalize File "/app/tmp/cache/venv/lib/python2.7/site-packages/mercurial/demandimport.py", line 111, in _demandimport return _hgextimport(_import, name, globals, locals, fromlist, level) File "/app/tmp/cache/venv/lib/python2.7/site-packages/mercurial/demandimport.py", line 43, in _hgextimport return importfunc(name, globals, args) File "/app/tmp/cache/venv/lib/python2.7/locale.py", line 182, in _percentre = re.compile(r'%(?:((?P.?)))?' File "/app/tmp/cache/venv/lib/python2.7/site-packages/mercurial/demandimport.py", line 102, in getattribute self._load() File "/app/tmp/cache/venv/lib/python2.7/site-packages/mercurial/demandimport.py", line 74, in _load mod = _hgextimport(_import, head, globals, locals, None, level) File "/app/tmp/cache/venv/lib/python2.7/site-packages/mercurial/demandimport.py", line 43, in _hgextimport return importfunc(name, globals, *args) File "/app/tmp/cache/venv/lib/python2.7/re.py", line 222, in _pattern_type = type(sre_compile.compile("", 0)) File "/app/tmp/cache/venv/lib/python2.7/sre_compile.py", line 502, in compile code = _code(p, flags) File "/app/tmp/cache/venv/lib/python2.7/sre_compile.py", line 484, in _code _compile_info(code, p, flags) File "/app/tmp/cache/venv/lib/python2.7/sre_compile.py", line 363, in _compile_info lo, hi = pattern.getwidth() File "/app/tmp/cache/venv/lib/python2.7/sre_parse.py", line 174, in getwidth self.width = min(lo, MAXREPEAT - 1), min(hi, MAXREPEAT) TypeError: unsupported operand type(s) for -: '_demandmod' and 'int'

Seems like an incompatible Python version?

[freeformz]

I'm going to close this for now as I cannot duplicate.

Please re-open if this is still an issue.

Thanks!