Traceback (most recent call last):


 "/usr/lib64/python3.6/site-packages/nose/case.py", line 197, in runTest

self.test(*self.arg)
TypeError: test_fixedlengthvalue() missing 1 required positional argument: 'tmpdir'

Traceback (most recent call last):


 "/usr/local/bin/pipenv", line 11, in <module>

sys.exit(cli())


 "/usr/local/lib/python2.7/site-packages/click/core.py", line 722, in __call__

return self.main(*args, **kwargs)


 "/usr/local/lib/python2.7/site-packages/click/core.py", line 697, in main

rv = self.invoke(ctx)


 "/usr/local/lib/python2.7/site-packages/click/core.py", line 1066, in invoke

return _process_result(sub_ctx.command.invoke(sub_ctx))


 "/usr/local/lib/python2.7/site-packages/click/core.py", line 895, in invoke

return ctx.invoke(self.callback, **ctx.params)


 "/usr/local/lib/python2.7/site-packages/click/core.py", line 535, in invoke

return callback(*args, **kwargs)


 "/usr/local/lib/python2.7/site-packages/pipenv/cli.py", line 374, in install

project.add_package_to_pipfile(package_name, dev)


 "/usr/local/lib/python2.7/site-packages/pipenv/project.py", line 91, in add_package_to_pipfile

data = format_toml(toml.dumps(p))


 "/usr/local/lib/python2.7/site-packages/toml.py", line 602, in dumps

addtoretval, addtosections = _dump_sections(sections[section], section)


 "/usr/local/lib/python2.7/site-packages/toml.py", line 619, in _dump_sections

if not re.match(r'^[A-Za-z0-9_-]+$', section):


 "/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/re.py", line 141, in match

return _compile(pattern, flags).match(string)
TypeError: expected string or buffer
