title: Cannot collect patch dependency on a local Artifactory Pypi repository
body: <p>While testing out conan, I had to "pip install" it.</p>
  
  <p>As I am working in a fully offline environment, my expectation was that I could simply</p>
  
  <ul>
  <li>Manually deploy all dependencies listed in <a href="https://github.com/conan-io/conan/blob/master/conans/requirements.txt" rel="noreferrer">https://github.com/conan-io/conan/blob/master/conans/requirements.txt</a> to a local Pypi repository called myrepo-python</li>
  <li><p>Install conan with</p>
  
  <p>pip3 install --index <a href="http://myserver/artifactory/api/pypi/myrepo-python/simple" rel="noreferrer">http://myserver/artifactory/api/pypi/myrepo-python/simple</a> conan</p></li>
  </ul>
  
  <p>This works fine for some packages and then fails for the dependency on patch == 1.16</p>
  
  <pre><code>[...]
  Collecting patch==1.16 (from conan)
    Could not find a version that satisfies the requirement patch==1.16 (from conan) (from versions: )
  No matching distribution found for patch==1.16 (from conan)
  </code></pre>
  
  <p>Looking into the Artifactory logs, this shows that even though I manually deployed patch-1.16.zip (from <a href="https://pypi.org/project/patch/1.16/#files" rel="noreferrer">https://pypi.org/project/patch/1.16/#files</a>) into the repository, it is not present in the index...</p>
  
  <ul>
  <li>The .pypi/simple.html file doesn't contain an entry for 'patch' (checked from the Artifactory UI)</li>
  <li>The server logs ($ARTIFACTORY_HOME/logs/artifactory.log) show the file being added to the indexing queue but don't contain a line saying that it got indexed</li>
  </ul>
  
  <p>Does anyone know why patch-1.16.zip is not indexed by Artifactory?</p>
  
  <p>This is on Artifactory 5.8.4.</p>
  
  <p>For now, my only workaround is to gather all the dependencies into a local path and point pip3 at it</p>
  
  <pre><code>scp conan-1.4.4.tar.gz installserver:/tmp/pip_cache
  [...]
  scp patch-1.16.zip installserver:/tmp/pip_cache
  [...]
  scp pyparsing-2.2.0-py2.py3-none-any.whl installserver:/tmp/pip_cache
  ssh installserver
  installserver$ pip3 install --no-index --find-links="/tmp/pip_cache" conan
  </code></pre>