How can I make one python file run another

Question

How can I make one python file to run another     For example I have two  py files   I want one file to be run  and then have it run the other  py file

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You could use this script   def run runfile     with open runfile  r   as rnf      exec rnf read      Syntax   run  file py

User · Answer

you can run your  py file simply with this code      import os  os system  python filename py     note     put the file in the same directory of your main python file

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from subprocess import Popen  Popen  python filename py     or how-can-i-make-one-python-file-run-another-file

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It may be called abc py from the main script as below     usr bin python import abc  abc py may be something like this  print abc

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I used subprocess call it s almost same like subprocess Popen  from subprocess import call call   python    your file py

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You d treat one of the files as a python module and make the other one import it  just as you import standard python modules   The latter can then refer to objects  including classes and functions  defined in the imported module  The module can also run whatever initialization code it needs  See http   docs python org tutorial modules html

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Get one python file to run another  using python 2 7 3 and Ubuntu 12 10    Put this in main py      usr bin python import yoursubfile  Put this in yoursubfile py     usr bin python print  hello    Run it   python main py   It prints   hello    Thus main py runs yoursubfile py  There are 8 ways to answer this question  A more canonical answer is here  How to import other Python files

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There are more than a few ways  I ll list them in order of inverted preference  i e   best first  worst last     Treat it like a module  import file  This is good because it s secure  fast  and maintainable  Code gets reused as it s supposed to be done  Most Python libraries run using multiple methods stretched over lots of files  Highly recommended  Note that if your file is called file py  your import should not include the  py extension at the end  The infamous  and unsafe  exec command  Insecure  hacky  usually the wrong answer  Avoid where possible    execfile  file py   in Python 2 exec open  file py   read    in Python 3  Spawn a shell process  os system  python file py    Use when desperate

[python] How can I make one python file run another?

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