Collecting m-singleton==0.1
  1 location(s) to search for versions of m-singleton:
  * https://pypi.python.org/simple/m-singleton/
  Getting page https://pypi.python.org/simple/m-singleton/
  Analyzing links from page https://pypi.org/simple/m-singleton/
    Found link https://files.pythonhosted.org/packages/20/2f/9181cd54296e93ca965804223fb933168dbb58688dcfb050e0af6021791c/m-singleton-0.1.tar.gz#sha256=b1db6e0db751539b4fb71d0d66742f470810e3cd58d5b9b3181082a20b696865 (from https://pypi.org/simple/m-singleton/), version: 0.1
    Found link https://files.pythonhosted.org/packages/2d/93/480d7a6654869a49cd9d7857daf60bb731c3a97dbe606e07deeb75bc5f96/m_singleton-0.1-py3-none-any.whl#sha256=dde39b8465691944abac34d5f7f9fd1567738c4325979a3e38a95c8576893e22 (from https://pypi.org/simple/m-singleton/), version: 0.1
  Using version 0.1 (newest of versions: 0.1)
  Downloading https://files.pythonhosted.org/packages/2d/93/480d7a6654869a49cd9d7857daf60bb731c3a97dbe606e07deeb75bc5f96/m_singleton-0.1-py3-none-any.whl
  Downloading from URL https://files.pythonhosted.org/packages/2d/93/480d7a6654869a49cd9d7857daf60bb731c3a97dbe606e07deeb75bc5f96/m_singleton-0.1-py3-none-any.whl#sha256=dde39b8465691944abac34d5f7f9fd1567738c4325979a3e38a95c8576893e22 (from https://pypi.org/simple/m-singleton/)
  Saved /tmp/tmp0i03bw_5/m_singleton-0.1-py3-none-any.whl
Skipping m-singleton, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-build-n3i6smib/m-singleton