run program in Python shell

Question

I have a demo file  test py  In the Windows Console I can run the file with  C   gt test py  How can I execute the file in the Python Shell instead

User · Accepted Answer

Use execfile for Python 2    gt  gt  gt  execfile  C   test py     Use exec for Python 3   gt  gt  gt  exec open  C   test py   read

User · Answer

From the same folder  you can do   import test

User · Answer

For newer version of python   exec open filename  read

User · Answer

If you want to avoid writing all of this everytime  you can define a function   def run filename       exec open filename  read     and then call it run  filename py

User · Answer

If you re wanting to run the script and end at a prompt  so you can inspect variables  etc   then use   python -i test py   That will run the script and then drop you into a Python interpreter

User · Answer

It depends on what is in test py  The following is an appropriate structure     suppose this is your  test py  file def main        This function runs the core of your program     print  running main    if   name         main        if you call this script from the command line  the shell  it will    run the  main  function  main     If you keep this structure  you can run it like this in the command line  assume that   is your command-line prompt      python test py     it will print  running main    If you want to run it from the Python shell  then you simply do the following    gt  gt  gt  import test  gt  gt  gt  test main     this calls the main part of your program   There is no necessity to use the subprocess module if you are already using Python  Instead  try to structure your Python files in such a way that they can be run both from the command line and the Python interpreter

[python] run program in Python shell

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