python：无法打开文件“ Functions.py”：[Errno 2

Question

I am trying to run my sample code containing functions but get the following error when running from the command line.

python: can't open file 'Functions.py': [Errno 2

I have checked my environment variables and also reviewed my code. I am currently using JetBrains Pycharm 2018.3.2 version, could this be the issue?

Answer 1

Based on your comments, your code should be like this:

def My1st():
    firstVar = 1
    secondVar = 2
    result = firstVar + secondVar
    print("The result is ", result)


if __name__ == '__main__':
    My1st()

Notice the concatenation in the print statement and the name attribute. and then if you're on windows(as it looks like you are),

py Functions.py

should give you the output: 3

Answer 2

Errno 2 points out at a file or directory not being found (in this case 'Functions.py'). Could you check whether your path to Functions.py is correct?

Answer 3

there was an error in below line of your code

print("The result is " + result)

the problem is that you can't concatenate string with int value

and also i am not able to understand you problem but below are some code that you may want from your problem statement.

def My1st():
    firstVar = 1
    secondVar = 2
    result = firstVar + secondVar
    print("The result is ", result)
if __name__ == "__main__" :
    My1st()

OR

def My1st():
    firstVar = 1
    secondVar = 2
    result = firstVar + secondVar
    print("The result is ", result)

My1st()