Collecting pkg-resources==0.0.0 (from -r requirements.txt (line 21))
Could not find a version that satisfies the requirement pkg-resources==0.0.0 (from -r requirements.txt (line 21)) (from versions: )
No matching distribution found for pkg-resources==0.0.0 (from -r requirements.txt (line 21))
below is the logs after running, found a related issue on stack overflow, https://stackoverflow.com/questions/39577984/what-is-pkg-resources-0-0-0-in-output-of-pip-freeze-command