Traceback (most recent call last):
File "/usr/lib/python2.7/runpy.py", line 162, in _run_module_as_main
"__main__", fname, loader, pkg_name)
File "/usr/lib/python2.7/runpy.py", line 72, in _run_code
exec code in run_globals
File "/tmp/yapf/yapf/__main__.py", line 18, in <module>
sys.exit(yapf.main(sys.argv))
File "/tmp/yapf/yapf/__init__.py", line 104, in main
verify=args.verify))
File "/tmp/yapf/yapf/yapflib/yapf_api.py", line 99, in FormatCode
tree = pytree_utils.ParseCodeToTree(unformatted_source.rstrip() + '\n')
File "/tmp/yapf/yapf/yapflib/pytree_utils.py", line 100, in ParseCodeToTree
tree = parser_driver.parse_string(code, debug=False)
File "/usr/lib/python2.7/lib2to3/pgen2/driver.py", line 106, in parse_string
return self.parse_tokens(tokens, debug)
File "/usr/lib/python2.7/lib2to3/pgen2/driver.py", line 71, in parse_tokens
if p.addtoken(type, value, (prefix, start)):
File "/usr/lib/python2.7/lib2to3/pgen2/parse.py", line 116, in addtoken
ilabel = self.classify(type, value, context)
File "/usr/lib/python2.7/lib2to3/pgen2/parse.py", line 172, in classify
raise ParseError("bad token", type, value, context)
lib2to3.pgen2.parse.ParseError: bad token: type=55, value=u' ', context=('', (1, 5))
The time diff between 2.7.3 and 2.7.6 is a year and a half, and lib2to3 got a bunch of fixed merge in during that period. I peeked at the CPython logs, and there's a number of changes so this bug may very well have been plugged.
I guess we should be recommending the latest Python 2.7 possible, since it's very difficult for us to work around lib2to3 bugs in yapf - we're basically limited to whatever it can parse. Some things can be monkey-patched, but core parsing bugs are challenging.
