title: Python3 - error installing jwt with pip3 on Ubuntu 14
body: <p>After know that jwt package is incompatible with python2, I am trying to install it with pip3:</p>
  
  <pre><code>sudo pip3 install jwt
  </code></pre>
  
  <p>I am getting the following output:</p>
  
  <blockquote>
    <p>Exception:<br>
      Traceback (most recent call last):<br>
     File "/usr/lib/python3/dist-packages/pkg_resources.py", line 2482, in
    _dep_map<br>
       return self.<strong>dep_map<br>
       File "/usr/lib/python3/dist-packages/pkg_resources.py", line 2344, in
    __getattr</strong><br>
       raise AttributeError(attr) AttributeError: _DistInfoDistribution__dep_map</p>
    
    <p>During handling of the above exception, another exception occurred:</p>
    
    <p>Traceback (most recent call last):<br>
     File "/usr/lib/python3/dist-packages/pip/basecommand.py", line 122, in main<br>
        status = self.run(options, args)<br>
     File "/usr/lib/python3/dist-packages/pip/commands/install.py", line 278, in run<br>
        requirement_set.prepare_files(finder, force_root_egg_info=self.bundle, bundle=self.bundle)<br>
      File
    "/usr/lib/python3/dist-packages/pip/req.py", line 1266, in
    prepare_files
        req_to_install.extras):<br>
    File "/usr/lib/python3/dist-packages/pkg_resources.py", line 2291, in
    requires
        dm = self._dep_map   File "/usr/lib/python3/dist-packages/pkg_resources.py", line 2484, in
    _dep_map
        self.__dep_map = self._compute_dependencies()<br>
     File "/usr/lib/python3/dist-packages/pkg_resources.py", line 2508, in
    _compute_dependencies
        parsed = next(parse_requirements(distvers))<br>
     File "/usr/lib/python3/dist-packages/pkg_resources.py", line 2605, in
    parse_requirements
        line, p, specs = scan_list(VERSION,LINE_END,line,p,(1,2),"version spec")<br>
     File "/usr/lib/python3/dist-packages/pkg_resources.py", line
    2583, in scan_list
        "Expected ',' or end-of-list in",line,"at",line[p:] ValueError: ("Expected ',' or end-of-list in", 'cryptography &lt;2.<em>,>=1.7.2', 'at',
    '</em>,>=1.7.2')</p>
  </blockquote>
  
  <p>Any help?</p>