How to get pipenv running in docker? : <p>Im installing pipenv in my docker:</p>

<pre><code>RUN pip install pipenv
RUN cd /my/app/path/ &amp;&amp; pipenv install
RUN cd /my/app/path/ &amp;&amp; pipenv shell
</code></pre>

<p>Im getting the error:</p>

<pre><code>Traceback (most recent call last):
  File "/usr/local/bin/pipenv", line 11, in &lt;module&gt;
    sys.exit(cli())
  File "/usr/local/lib/python2.7/dist-packages/pipenv/vendor/click/core.py", line 722, in __call__
    return self.main(*args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/pipenv/vendor/click/core.py", line 697, in main
    rv = self.invoke(ctx)
  File "/usr/local/lib/python2.7/dist-packages/pipenv/vendor/click/core.py", line 1066, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/usr/local/lib/python2.7/dist-packages/pipenv/vendor/click/core.py", line 895, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/local/lib/python2.7/dist-packages/pipenv/vendor/click/core.py", line 535, in invoke
    return callback(*args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/pipenv/cli.py", line 2057, in shell
    do_shell(three=three, python=python, fancy=fancy, shell_args=shell_args)
  File "/usr/local/lib/python2.7/dist-packages/pipenv/cli.py", line 1952, in do_shell
    shell = os.path.abspath(PIPENV_SHELL)
  File "/usr/lib/python2.7/posixpath.py", line 360, in abspath
    if not isabs(path):
  File "/usr/lib/python2.7/posixpath.py", line 54, in isabs
    return s.startswith('/')
AttributeError: 'NoneType' object has no attribute 'startswith'
</code></pre>

<p>If I run</p>

<pre><code>RUN cd /my/app/path/ &amp;&amp; pipenv install --system 
</code></pre>

<p>instead, im getting another error:</p>

<pre><code>build   30-Sep-2017 16:50:45    Step 5/9 : RUN cd /my/app/path &amp;&amp;     pipenv install --system
build   30-Sep-2017 16:50:45     ---&gt; Running in cffd31633074
build   30-Sep-2017 16:50:46    [91mPipfile.lock not found, creatingâ€¦
build   30-Sep-2017 16:50:46    [0m[91mLocking [dev-packages] dependenciesâ€¦
build   30-Sep-2017 16:50:46    [0m[91mLocking [packages] dependenciesâ€¦
build   30-Sep-2017 16:50:49    [0m[91mCRITICAL:pip.utils:Error [Errno 2] No such file or directory while executing command python setup.py egg_info
build   30-Sep-2017 16:50:49    [0m[91mTraceback (most recent call last):
build   30-Sep-2017 16:50:49      File "/usr/local/bin/pipenv", line 11, in &lt;module&gt;
build   30-Sep-2017 16:50:49        sys.exit(cli())
build   30-Sep-2017 16:50:49      File "/usr/local/lib/python2.7/dist-packages/pipenv/vendor/click/core.py", line 722, in __call__
build   30-Sep-2017 16:50:49    [0m[91m    return self.main(*args, **kwargs)
build   30-Sep-2017 16:50:49      File "/usr/local/lib/python2.7/dist-packages/pipenv/vendor/click/core.py", line 697, in main
build   30-Sep-2017 16:50:49    [0m[91m    rv = self.invoke(ctx)
build   30-Sep-2017 16:50:49      File "/usr/local/lib/python2.7/dist-packages/pipenv/vendor/click/core.py", line 1066, in invoke
build   30-Sep-2017 16:50:49    [0m[91m    return _process_result(sub_ctx.command.invoke(sub_ctx))
build   30-Sep-2017 16:50:49      File "/usr/local/lib/python2.7/dist-packages/pipenv/vendor/click/core.py", line 895, in invoke
build   30-Sep-2017 16:50:49    [0m[91m    return ctx.invoke(self.callback, **ctx.params)
build   30-Sep-2017 16:50:49      File "/usr/local/lib/python2.7/dist-packages/pipenv/vendor/click/core.py", line 535, in invoke
build   30-Sep-2017 16:50:49        return callback(*args, **kwargs)
build   30-Sep-2017 16:50:49      File "/usr/local/lib/python2.7/dist-packages/pipenv/cli.py", line 1782, in install
build   30-Sep-2017 16:50:49    [0m[91m    do_init(dev=dev, allow_global=system, ignore_pipfile=ignore_pipfile, system=system, skip_lock=skip_lock, verbose=verbose, concurrent=concurrent, deploy=deploy)
build   30-Sep-2017 16:50:49      File "/usr/local/lib/python2.7/dist-packages/pipenv/cli.py", line 1290, in do_init
build   30-Sep-2017 16:50:49    [0m[91m    do_lock(system=system)
build   30-Sep-2017 16:50:49      File "/usr/local/lib/python2.7/dist-packages/pipenv/cli.py", line 1080, in do_lock
build   30-Sep-2017 16:50:49    [0m[91m    pre=pre
build   30-Sep-2017 16:50:49      File "/usr/local/lib/python2.7/dist-packages/pipenv/utils.py", line 421, in resolve_deps
build   30-Sep-2017 16:50:49    [0m[91m    resolved_tree.update(resolver.resolve())
build   30-Sep-2017 16:50:49      File "/usr/local/lib/python2.7/dist-packages/pipenv/patched/piptools/resolver.py", line 101, in resolve
build   30-Sep-2017 16:50:49    [0m[91m    has_changed, best_matches = self._resolve_one_round()
build   30-Sep-2017 16:50:49      File "/usr/local/lib/python2.7/dist-packages/pipenv/patched/piptools/resolver.py", line 199, in _resolve_one_round
build   30-Sep-2017 16:50:49    [0m[91m    for dep in self._iter_dependencies(best_match):
build   30-Sep-2017 16:50:49      File "/usr/local/lib/python2.7/dist-packages/pipenv/patched/piptools/resolver.py", line 293, in _iter_dependencies
build   30-Sep-2017 16:50:49        dependencies = self.repository.get_dependencies(ireq)
build   30-Sep-2017 16:50:49      File "/usr/local/lib/python2.7/dist-packages/pipenv/patched/piptools/repositories/pypi.py", line 171, in get_dependencies
build   30-Sep-2017 16:50:49        result = reqset._prepare_file(self.finder, ireq)
build   30-Sep-2017 16:50:49      File "/usr/local/lib/python2.7/dist-packages/pipenv/patched/pip/req/req_set.py", line 639, in _prepare_file
build   30-Sep-2017 16:50:49    [0m[91m    abstract_dist.prep_for_dist()
build   30-Sep-2017 16:50:49      File "/usr/local/lib/python2.7/dist-packages/pipenv/patched/pip/req/req_set.py", line 134, in prep_for_dist
build   30-Sep-2017 16:50:49    [0m[91m    self.req_to_install.run_egg_info()
build   30-Sep-2017 16:50:49      File "/usr/local/lib/python2.7/dist-packages/pipenv/patched/pip/req/req_install.py", line 438, in run_egg_info
build   30-Sep-2017 16:50:49    [0m[91m    command_desc='python setup.py egg_info')
build   30-Sep-2017 16:50:49      File "/usr/local/lib/python2.7/dist-packages/pipenv/patched/pip/utils/__init__.py", line 667, in call_subprocess
build   30-Sep-2017 16:50:49    [0m[91m    cwd=cwd, env=env)
build   30-Sep-2017 16:50:49      File "/usr/lib/python2.7/subprocess.py", line 711, in __init__
build   30-Sep-2017 16:50:49    [0m[91m    errread, errwrite)
build   30-Sep-2017 16:50:49      File "/usr/lib/python2.7/subprocess.py", line 1343, in _execute_child
build   30-Sep-2017 16:50:49    [0m[91m    raise child_exception
build   30-Sep-2017 16:50:49    OSError: [Errno 2] No such file or directory
error   30-Sep-2017 16:50:49    The command '/bin/sh -c cd /opt/supercrunch/function-service/lib &amp;&amp;     pipenv install --system' returned a non-zero code: 1
build   30-Sep-2017 16:50:49    [0mSending build context to Docker daemon 40.96 kB
</code></pre>

<p>But when I instead do the following:</p>

<pre><code>RUN pip install pipenv
RUN cd /my/app/path &amp;&amp; pipenv install
RUN cd /my/app/path &amp;&amp; pipenv install --system
</code></pre>

<p>It is working...</p>

<p>So two question: First: Why is <code>pipenv shell</code> giving me this error and Second: Why do I have to do <code>pipenv install</code> before <code>pipenv install --system</code> to get it working?</p>

<p>I would like to use pipenv to create virtual environments with different python versions and differne dependency versions.</p>
