Created temporary directory: /tmp/pip-ephem-wheel-cache-1j93s6xm
Created temporary directory: /tmp/pip-req-tracker-_vsnxme5
Created requirements tracker '/tmp/pip-req-tracker-_vsnxme5'
Created temporary directory: /tmp/pip-wheel-6bbn69oc
Collecting pyperf==1.7.1
  1 location(s) to search for versions of pyperf:
  * https://pypi.org/simple/pyperf/
  Getting page https://pypi.org/simple/pyperf/
  Analyzing links from page https://pypi.org/simple/pyperf/
    Found link https://files.pythonhosted.org/packages/7f/34/12f4f27e43ed9d2269162fbb07005a08b45b6ed275a0e50cc3afda84af76/pyperf-1.6.1-py2.py3-none-any.whl#sha256=b9074a5e16e526ebe260922005ee96b67621ce804efd3e8dd49de49b513397a8 (from https://pypi.org/simple/pyperf/), version: 1.6.1
    Found link https://files.pythonhosted.org/packages/ca/f8/885eb690f4098cd1c9b473f4b877b4aa8e0551b57a963ac36621737f3c65/pyperf-1.6.1.tar.gz#sha256=8d0143a22a13ee10c997a648f30b82cdc40175d5a20b11055ae058a82e45d371 (from https://pypi.org/simple/pyperf/), version: 1.6.1
    Found link https://files.pythonhosted.org/packages/f0/25/b1dfb25b64808deaf4a7f5b5ccedf8e8234e009f3c66d5d0dac86d195064/pyperf-1.7.0-py2.py3-none-any.whl#sha256=d512f79868b45ebe9b5dca60a0b0e89c29609de49303a93dbedc02f6316e6c05 (from https://pypi.org/simple/pyperf/), version: 1.7.0
    Found link https://files.pythonhosted.org/packages/04/6a/8efd2be0f883e5cef006db69e14224b49b2df57633b759ee5c8fee9f3017/pyperf-1.7.0.tar.gz#sha256=0d214aa65e085d3e4108a36152cb12f7cd0f4e7fda93b5134b43a9687c975786 (from https://pypi.org/simple/pyperf/), version: 1.7.0
    Found link https://files.pythonhosted.org/packages/d1/a3/624b96d449cff918925879034ade5fd90af4b0480122f1eeebb035fd4269/pyperf-1.7.1-py2.py3-none-any.whl#sha256=893ec2ebccb7b544e55fcf93e8efbc7d8ebbc7b59cf91139907cc0cdb3d68c1c (from https://pypi.org/simple/pyperf/), version: 1.7.1
    Found link https://files.pythonhosted.org/packages/0e/68/605d68755c8c5d88c7c1c798b6b82f8c13d8435c8ef1cb224c436811b99b/pyperf-1.7.1.tar.gz#sha256=c37690e810116a83a244dfeec47885e2f0475b4c450313904be3bc2cdaf6d50a (from https://pypi.org/simple/pyperf/), version: 1.7.1
  Using version 1.7.1 (newest of versions: 1.7.1)
  Created temporary directory: /tmp/pip-unpack-df7_k4_b
  Downloading https://files.pythonhosted.org/packages/d1/a3/624b96d449cff918925879034ade5fd90af4b0480122f1eeebb035fd4269/pyperf-1.7.1-py2.py3-none-any.whl (87kB)
  Downloading from URL https://files.pythonhosted.org/packages/d1/a3/624b96d449cff918925879034ade5fd90af4b0480122f1eeebb035fd4269/pyperf-1.7.1-py2.py3-none-any.whl#sha256=893ec2ebccb7b544e55fcf93e8efbc7d8ebbc7b59cf91139907cc0cdb3d68c1c (from https://pypi.org/simple/pyperf/)
  Saved /tmp/tmpwp0_kksz/pyperf-1.7.1-py2.py3-none-any.whl
  Added pyperf==1.7.1 from https://files.pythonhosted.org/packages/d1/a3/624b96d449cff918925879034ade5fd90af4b0480122f1eeebb035fd4269/pyperf-1.7.1-py2.py3-none-any.whl#sha256=893ec2ebccb7b544e55fcf93e8efbc7d8ebbc7b59cf91139907cc0cdb3d68c1c to build tracker '/tmp/pip-req-tracker-_vsnxme5'
  Removed pyperf==1.7.1 from https://files.pythonhosted.org/packages/d1/a3/624b96d449cff918925879034ade5fd90af4b0480122f1eeebb035fd4269/pyperf-1.7.1-py2.py3-none-any.whl#sha256=893ec2ebccb7b544e55fcf93e8efbc7d8ebbc7b59cf91139907cc0cdb3d68c1c from build tracker '/tmp/pip-req-tracker-_vsnxme5'
Skipping pyperf, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-wheel-6bbn69oc/pyperf
Removed build tracker '/tmp/pip-req-tracker-_vsnxme5'