Collecting zlmdb==18.6.1
  1 location(s) to search for versions of zlmdb:
  * https://pypi.python.org/simple/zlmdb/
  Getting page https://pypi.python.org/simple/zlmdb/
  Analyzing links from page https://pypi.org/simple/zlmdb/
    Found link https://files.pythonhosted.org/packages/04/7e/46d693a304baa469e5dd1301556f91c150dd5b53906f1f7629387461cb8a/zlmdb-18.6.1-py2.py3-none-any.whl#sha256=969927e9165d58a505e502c426b875f6b3095cf57697337c44893f2aa3ad4a46 (from https://pypi.org/simple/zlmdb/), version: 18.6.1
    Found link https://files.pythonhosted.org/packages/98/89/eda51206bf8ef9823aac259016ea2a62500d286c7e191b685d5ca05a7125/zlmdb-18.6.1.tar.gz#sha256=9e167b1a6cfb6a906559c5cff30e0a6c6f8736569e055c2d1781b4cf0e93556b (from https://pypi.org/simple/zlmdb/), version: 18.6.1
  Using version 18.6.1 (newest of versions: 18.6.1)
  Downloading https://files.pythonhosted.org/packages/04/7e/46d693a304baa469e5dd1301556f91c150dd5b53906f1f7629387461cb8a/zlmdb-18.6.1-py2.py3-none-any.whl
  Downloading from URL https://files.pythonhosted.org/packages/04/7e/46d693a304baa469e5dd1301556f91c150dd5b53906f1f7629387461cb8a/zlmdb-18.6.1-py2.py3-none-any.whl#sha256=969927e9165d58a505e502c426b875f6b3095cf57697337c44893f2aa3ad4a46 (from https://pypi.org/simple/zlmdb/)
  Saved /tmp/tmpdl_mivtu/zlmdb-18.6.1-py2.py3-none-any.whl
Skipping zlmdb, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-build-3cpps2bu/zlmdb