posted message: I hope anyone could help me. For the exercises I've been doing, to ensure the code is working I paste each line on python 2.7. I've been trying to call the file that contains the code but I get an error when executing say python myfile.py. I tried this with Ninja as well and same thing happens. So I am starting to believe I might be missing something can anyone give me a hand? I appreciate the help. Thanks!