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What do I use on linux to make a python program executable

Posted by: admin November 30, 2017 Leave a comment

Questions:

I just installed a linux system (Kubuntu) and was wondering if there is a program to make python programs executable for linux.

Answers:

Just put this in the first line of your script :

#!/usr/bin/env python

Make the file executable with

chmod +x myfile.py

Execute with

./myfile.py

Questions:
Answers:

If you want to obtain a stand-alone binary application in Python try to use a tool like py2exe or PyInstaller.

Questions:
Answers:

Putting these lines at the starting of the code will tell your operating systems to look up the binary program needed for the execution of the python script i.e it is the python interpreter.

So it depends on your operating system where it keeps the python interpreter. As I have Ubuntu as operating system it keeps the python interpreter in /usr/bin/python so I have to write this line at the starting of my python script;

#!/usr/bin/python

After completing and saving your code

  1. Start your command terminal

  2. Make sure the script lies in your present working directory

  3. Type chmod +x script_name.py

  4. Now you can start the script by clicking the script. An alert box will appear; press “Run” or “Run in Terminal” in the alert box; or, at the terminal prompt, type ./script_name.py

Questions:
Answers:

You can use PyInstaller. It generates a build dist so you can execute it as a single “binary” file.

http://pythonhosted.org/PyInstaller/#using-pyinstaller

Python 3 has the native option of create a build dist also:

https://docs.python.org/3/distutils/builtdist.html

Questions:
Answers:

Another way to do it could be by creating an alias.
For example in terminal write:

alias printhello='python /home/hello_world.py'

Writing printhello will run hello_world.py, but this is only temporary.
To make aliases permanent, you have to add them to bashrc, you can edit it by writing this in the terminal:

gedit ~/.bashrc

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On the top of your code first write:

#usr/bin/python or #usr/bin/env python
Then create a new .sh file called setup.sh and write:

sudo apt-get install python python-pip
sudo chmod +x yourfile.py
sudo -H pip install librariesyouwant

Therefore removing the issue of not having python and installing any missing packages. To make a desktop shortcut do this:

sudo cp yourfile.py ~/Desktop/
sudo chmod +x ~/Desktop/yourfile.py

Please, note that if your code isn’t made to create a GUI you will have to run your code from terminal with ./yourfile.py