Created temporary directory: /tmp/pip-ephem-wheel-cache-v8_i3ybc
Created temporary directory: /tmp/pip-req-tracker-vn53_ab6
Created requirements tracker '/tmp/pip-req-tracker-vn53_ab6'
Created temporary directory: /tmp/pip-wheel-w94205xr
Collecting tuple-flatten==1.0
  1 location(s) to search for versions of tuple-flatten:
  * https://pypi.org/simple/tuple-flatten/
  Getting page https://pypi.org/simple/tuple-flatten/
  Analyzing links from page https://pypi.org/simple/tuple-flatten/
    Found link https://files.pythonhosted.org/packages/ef/20/67d5c6ca637a95450439fbc7c4ceecc82d04e692c2ed675887f3fc5d6e61/tuple_flatten-1.0-py3-none-any.whl#sha256=e78c2f31d49d80f2a074b5c7aaca56cd1811501d09819d143ba08c29d0bef29f (from https://pypi.org/simple/tuple-flatten/), version: 1.0
    Found link https://files.pythonhosted.org/packages/8b/96/a295a8bb57c43215da7fdb18c051b8e67873c7c7124beee71c1f70166d76/tuple_flatten-1.0.tar.gz#sha256=0b5433876fd5ed3117be5326369cc0f3995431fba0dcc6c28e3928c6b97041bb (from https://pypi.org/simple/tuple-flatten/), version: 1.0
  Using version 1.0 (newest of versions: 1.0)
  Created temporary directory: /tmp/pip-unpack-ztmcte0k
  Downloading https://files.pythonhosted.org/packages/ef/20/67d5c6ca637a95450439fbc7c4ceecc82d04e692c2ed675887f3fc5d6e61/tuple_flatten-1.0-py3-none-any.whl
  Downloading from URL https://files.pythonhosted.org/packages/ef/20/67d5c6ca637a95450439fbc7c4ceecc82d04e692c2ed675887f3fc5d6e61/tuple_flatten-1.0-py3-none-any.whl#sha256=e78c2f31d49d80f2a074b5c7aaca56cd1811501d09819d143ba08c29d0bef29f (from https://pypi.org/simple/tuple-flatten/)
  Saved /tmp/tmpfpxh_6ow/tuple_flatten-1.0-py3-none-any.whl
  Added tuple-flatten==1.0 from https://files.pythonhosted.org/packages/ef/20/67d5c6ca637a95450439fbc7c4ceecc82d04e692c2ed675887f3fc5d6e61/tuple_flatten-1.0-py3-none-any.whl#sha256=e78c2f31d49d80f2a074b5c7aaca56cd1811501d09819d143ba08c29d0bef29f to build tracker '/tmp/pip-req-tracker-vn53_ab6'
  Removed tuple-flatten==1.0 from https://files.pythonhosted.org/packages/ef/20/67d5c6ca637a95450439fbc7c4ceecc82d04e692c2ed675887f3fc5d6e61/tuple_flatten-1.0-py3-none-any.whl#sha256=e78c2f31d49d80f2a074b5c7aaca56cd1811501d09819d143ba08c29d0bef29f from build tracker '/tmp/pip-req-tracker-vn53_ab6'
Skipping tuple-flatten, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-wheel-w94205xr/tuple-flatten
Removed build tracker '/tmp/pip-req-tracker-vn53_ab6'