11

I understand from How do I run a Python program? that in command prompt i can use 

C:\python>python first.py

, to run first.py.

But, is it possible, that after i entered the interactive python prompt, by runnning 

C:\python>python

and see the >>> python indication, run first.py, and after finished running first.py, back to the interactive python prompt, I could see variables defined inside first.py?

For example, if first.py created some variables inside, e.g. by

(x,y) = [3,5]

, is it possible that after running first.py and back to the interactive python prompt, x and y are still there?

Running windows shell commands with python shows how to run the windows shell command in python, so in the interactive python prompt, i could actually use

>>>os.system('python first.py')

to run first.py, but x and y defined inside are lost after running.

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6
  • 1
    try import first from prompt Commented Jun 26, 2017 at 11:24
  • 2
    If you did not put the code into if __name__ == "__main__":, you can just do import first. Commented Jun 26, 2017 at 11:24
  • @AzatIbrakov then is it possible to keep variables in first.py after running? Commented Jun 26, 2017 at 11:30
  • @tobias_k same question... Commented Jun 26, 2017 at 11:30
  • 2
    @athos: you can get objects from module using dot notation Commented Jun 26, 2017 at 11:30

2 Answers 2

Reset to default
19

Use

C:\python>python -i first.py

to run the script and get the interactive shell in the same namespace afterwards.

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1 Comment

This way the script is executed the same way OP does it right now, with added interactive shell. import would indeed not work with a if __name__ == "__main__":-statement.
18

Try the following for Python 2.x:

>>> execfile('first.py')

For Python 3.x, try this:

>>> exec(open("./first.py").read())

The variables should then be available to you.

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4 Comments

somehow it returns error: Traceback (most recent call last): File "<stdin>", line 1, in <module> NameError: name 'execfile' is not defined
@athos You maybe on Python 3; check the updated answer.
thx it's working!
The Python 3.x version works for me

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