Created temporary directory: /tmp/pip-ephem-wheel-cache-6i0lr83v
Created temporary directory: /tmp/pip-wheel-kjsky9dt
Looking in indexes: https://pypi.python.org/simple
Collecting rpkg==1.55
  1 location(s) to search for versions of rpkg:
  * https://pypi.python.org/simple/rpkg/
  Getting page https://pypi.python.org/simple/rpkg/
  Analyzing links from page https://pypi.org/simple/rpkg/
    Skipping link https://files.pythonhosted.org/packages/97/ec/fac0fa31181d0a606e96db2e0103caf29c1e233a7978b3548517fa627240/rpkg-1.52-py2-none-any.whl#sha256=d1a4e94bd56529733ef6d582d3062b120ccdf35487963f68ce258d43ff556418 (from https://pypi.org/simple/rpkg/); it is not compatible with this Python
    Found link https://files.pythonhosted.org/packages/5e/9d/d49e41dec54b7dbf437f6d7db03c10df35202c297a6b8aba7e34cb35a3f3/rpkg-1.52-py3-none-any.whl#sha256=a18c73786a4a6dc801467fa03c93826bb3161579bd2a61739d6d73304c7922e9 (from https://pypi.org/simple/rpkg/), version: 1.52
    Found link https://files.pythonhosted.org/packages/15/83/6474c1e752621e4e2eaa35070a1b7e1cacb42b5ee15ab3c2c6d83aba3410/rpkg-1.52.tar.gz#sha256=bcdb7c15d4dcd72e7d66db835b50a99420b3ad242299cc237a2f92c8921d6c70 (from https://pypi.org/simple/rpkg/), version: 1.52
    Found link https://files.pythonhosted.org/packages/60/4f/3ac7eac281db7fabaf71993853ccf4a066e885295b5cb005f5bd9de27a54/rpkg-1.53-py2.py3-none-any.whl#sha256=0450bbe763e705928bb1fe21ca998ba92cb631d76a0cbfa86eb33239a4e9d74d (from https://pypi.org/simple/rpkg/), version: 1.53
    Found link https://files.pythonhosted.org/packages/16/80/89b7415407a59ff859a586a674f2c2f8c0e3c5c969022a9fa9c76825ed6f/rpkg-1.53.tar.gz#sha256=ee8557d11043bb75d78fdd70873ee961fae864a9e2da0ad5e5d57cc5577576c7 (from https://pypi.org/simple/rpkg/), version: 1.53
    Found link https://files.pythonhosted.org/packages/4f/2c/4c4048f37c210de51a724a040b4b54dc561a03722ce3517aa67b528ed260/rpkg-1.54-py2.py3-none-any.whl#sha256=5bb1b59109d5207135ddef4c1a11aea6313958d8d7714df5b271d6f9cddce45a (from https://pypi.org/simple/rpkg/), version: 1.54
    Found link https://files.pythonhosted.org/packages/92/56/40a11cdde409c02ab0958b3a39b1ee5f05bb566811a21d654ed7d16f8e23/rpkg-1.54.tar.gz#sha256=c0db50d9c5d54d8be6a80f27d06ed01624b3c6d0f2b02e04511cc0b02b91f7a0 (from https://pypi.org/simple/rpkg/), version: 1.54
    Found link https://files.pythonhosted.org/packages/22/7e/f9c1acecf4db7aa9e3c03ef97710ec8617b422630268fa630447bedd3a9d/rpkg-1.55-py2.py3-none-any.whl#sha256=ce1beb8f795793e2f487af2e46c6ad4c8bfa59b2660628191c451e1e4acc4e89 (from https://pypi.org/simple/rpkg/), version: 1.55
    Found link https://files.pythonhosted.org/packages/f4/11/9d39189ad59bb7e2ccc0d0807bc1994354a2373b347f16362cc77573ac85/rpkg-1.55.tar.gz#sha256=89cca68002e27213af763e6fe0aa1fb5a2832c794cb856412bc89743497b09e2 (from https://pypi.org/simple/rpkg/), version: 1.55
  Using version 1.55 (newest of versions: 1.55)
  Created temporary directory: /tmp/pip-unpack-ovg278ss
  Downloading https://files.pythonhosted.org/packages/22/7e/f9c1acecf4db7aa9e3c03ef97710ec8617b422630268fa630447bedd3a9d/rpkg-1.55-py2.py3-none-any.whl (67kB)
  Downloading from URL https://files.pythonhosted.org/packages/22/7e/f9c1acecf4db7aa9e3c03ef97710ec8617b422630268fa630447bedd3a9d/rpkg-1.55-py2.py3-none-any.whl#sha256=ce1beb8f795793e2f487af2e46c6ad4c8bfa59b2660628191c451e1e4acc4e89 (from https://pypi.org/simple/rpkg/)
  Saved /tmp/tmp9f1qmvuv/rpkg-1.55-py2.py3-none-any.whl
Skipping rpkg, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-wheel-kjsky9dt/rpkg