stdin

stdin

Collecting markdown
  Exception:
  Traceback (most recent call last):
    File "/usr/lib64/python3.3/site-packages/pip/basecommand.py", line 232, in main
      status = self.run(options, args)
    File "/usr/lib64/python3.3/site-packages/pip/commands/install.py", line 339, in run
      requirement_set.prepare_files(finder)
    File "/usr/lib64/python3.3/site-packages/pip/req/req_set.py", line 333, in prepare_files
      upgrade=self.upgrade,
    File "/usr/lib64/python3.3/site-packages/pip/index.py", line 430, in find_requirement
      if self.allow_all_prereleases else None
    File "/usr/lib64/python3.3/site-packages/pkg_resources/_vendor/packaging/specifiers.py", line 751, in filter
      parsed_version = parse(item)
    File "/usr/lib64/python3.3/site-packages/pkg_resources/_vendor/packaging/version.py", line 41, in parse
      return Version(version)
    File "/usr/lib64/python3.3/site-packages/pkg_resources/_vendor/packaging/version.py", line 210, in __init__
      match = self._regex.search(version)
  TypeError: expected string or buffer