My question is very simple. I have a piece of code that I want to reuse, but I don't want to copy it every time I use it. Is there any way I can import it and run it in my main file? For example, in file code1.py: a=1 I want to run in code2.py: import code1 b=a+1 print(b) The output says a is not defined. I don't know where I got it wrong. I am a beginner in Python, so this will help me a lot in the future, thanks. Continue reading...