run a python script in terminal without the python command

Question

I have a python script let s name it script1 py  I can run it in the terminal this way   python  path script1 py       but I want to run like a command-line program   arbitraryname       how can i do it

User · Accepted Answer

You use a shebang line at the start of your script:

#!/usr/bin/env python

make the file executable:

chmod +x arbitraryname

and put it in a directory on your PATH (can be a symlink):

cd ~/bin/
ln -s ~/some/path/to/myscript/arbitraryname

User · Answer

You need to use a hashbang  Add it to the first line of your python script       lt full path of python interpreter gt    Then change the file permissions  and add the executing permission   chmod  x  lt filename gt    And finally execute it using      lt filename gt    If its in the current directory

User · Answer

Add the following line to the beginning script1 py     usr bin env python   and then make the script executable     chmod  x script1 py   If the script resides in a directory that appears in your PATH variable  you can simply type     script1 py   Otherwise  you ll need to provide the full path  either absolute or relative   This includes the current working directory  which should not be in your PATH       script1 py

User · Answer

There are three parts     Add a  shebang  at the top of your script which tells how to execute your script Give the script  run  permissions  Make the script in your PATH so you can run it from anywhere    Adding a shebang  You need to add a shebang at the top of your script so the shell knows which interpreter to use when parsing your script   It is generally     path to interpretter   To find the path to your python interpretter on your machine you can run the command   which python   This will search your PATH to find the location of your python executable   It should come back with a absolute path which you can then use to form your shebang   Make sure your shebang is at the top of your python script      usr bin python   Run Permissions  You have to mark your script with run permissions so that your shell knows you want to actually execute it when you try to use it as a command   To do this you can run this command   chmod  x myscript py   Add the script to your path  The PATH environment variable  is an ordered list of directories that your shell will search when looking for a command you are trying to run   So if you want your python script to be a command you can run from anywhere then it needs to be in your PATH   You can see the contents of your path running the command   echo  PATH   This will print out a long line of text  where each directory is seperated by a semicolon   Whenever you are wondering where the actual location of an executable that you are running from your PATH  you can find it by running the command   which  lt commandname gt    Now you have two options  Add your script to a directory already in your PATH  or add a new directory to your PATH   I usually create a directory in my user home directory and then add it the PATH   To add things to your path you can run the command   export PATH  my directory with pythonscript  PATH   Now you should be able to run your python script as a command anywhere   BUT  if you close the shell window and open a new one  the new one won t remember the change you just made to your PATH   So if you want this change to be saved then you need to add that command at the bottom of your  bashrc or  bash profile

[python] run a python script in terminal without the python command

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