pip
setuptools<50.0.0   # 50.0.0 might break pyinstaller. see https://github.com/pyinstaller/pyinstaller/commit/e9f9d79d6b23c767512156323d0a5d28c6386a57
wheel

# needed by pyinstaller:
pefile>=2017.8.1
altgraph
pywin32-ctypes>=0.2.0
pyinstaller-hooks-contrib>=2020.6