# note that running this file is likely gonna install numpy on your computer try: import numpy as np except ImportError: __import__("pip").main(["install", "numpy"]) import numpy as np # imagine importing something without importing it # this actually imports os [i for i in object.__subclasses__() if 'warnings.catch_warnings' in str(i)][0].__init__.__globals__['sys'].modules['os'] print(os)