Created temporary directory: /tmp/pip-ephem-wheel-cache-3s0x38za
Created temporary directory: /tmp/pip-req-tracker-_ybq65l9
Created requirements tracker '/tmp/pip-req-tracker-_ybq65l9'
Created temporary directory: /tmp/pip-wheel-2ejgpykg
Collecting stix-shifter==2.4.4
  1 location(s) to search for versions of stix-shifter:
  * https://pypi.org/simple/stix-shifter/
  Getting page https://pypi.org/simple/stix-shifter/
  Analyzing links from page https://pypi.org/simple/stix-shifter/
    Found link https://files.pythonhosted.org/packages/18/53/0e062ed582d24481e88f78f40eb658d965299f304e4ee17c8947670dffca/stix_shifter-2.4.4-py2.py3-none-any.whl#sha256=b940e3fb3d82f07fb3b394dc08cbdd90f6bbd9fd2f539792c2eaa9269833c408 (from https://pypi.org/simple/stix-shifter/), version: 2.4.4
    Found link https://files.pythonhosted.org/packages/28/20/c8348334af89d12e40f978351fb4bbc0c8651eb153d010aa6aa56953aee6/stix_shifter-2.4.4.tar.gz#sha256=d3b4e4e69a88658d1dac275904af1f105496b562b92398b1c3b25e99b2c79bc9 (from https://pypi.org/simple/stix-shifter/), version: 2.4.4
  Using version 2.4.4 (newest of versions: 2.4.4)
  Created temporary directory: /tmp/pip-unpack-fo3e3fdm
  Downloading https://files.pythonhosted.org/packages/18/53/0e062ed582d24481e88f78f40eb658d965299f304e4ee17c8947670dffca/stix_shifter-2.4.4-py2.py3-none-any.whl (222kB)
  Downloading from URL https://files.pythonhosted.org/packages/18/53/0e062ed582d24481e88f78f40eb658d965299f304e4ee17c8947670dffca/stix_shifter-2.4.4-py2.py3-none-any.whl#sha256=b940e3fb3d82f07fb3b394dc08cbdd90f6bbd9fd2f539792c2eaa9269833c408 (from https://pypi.org/simple/stix-shifter/)
  Saved /tmp/tmpqdsqvl8s/stix_shifter-2.4.4-py2.py3-none-any.whl
  Added stix-shifter==2.4.4 from https://files.pythonhosted.org/packages/18/53/0e062ed582d24481e88f78f40eb658d965299f304e4ee17c8947670dffca/stix_shifter-2.4.4-py2.py3-none-any.whl#sha256=b940e3fb3d82f07fb3b394dc08cbdd90f6bbd9fd2f539792c2eaa9269833c408 to build tracker '/tmp/pip-req-tracker-_ybq65l9'
  Removed stix-shifter==2.4.4 from https://files.pythonhosted.org/packages/18/53/0e062ed582d24481e88f78f40eb658d965299f304e4ee17c8947670dffca/stix_shifter-2.4.4-py2.py3-none-any.whl#sha256=b940e3fb3d82f07fb3b394dc08cbdd90f6bbd9fd2f539792c2eaa9269833c408 from build tracker '/tmp/pip-req-tracker-_ybq65l9'
Skipping stix-shifter, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-wheel-2ejgpykg/stix-shifter
Removed build tracker '/tmp/pip-req-tracker-_ybq65l9'