I'm converting all my Python2 scripts to work with Python3.
From within a bash wrapper, scripts can be executed with Python3 with:
python3 myScript.py
However, I have an old wrapper which called a Python2 script via the shorthand, i.e
./myScript.py
How do I ensure that this shorthand will run the script with Python3 by default?
The server these scripts are running on is Ubuntu 14.04.
You can use the "hash-bang" #!/usr/bin/python3
#!/usr/bin/env python since not every distribution will have python in that location (for example NixOS)
more information regarding your operating system would be helpful. If you are on linux or mac you can add the following to the first line of your script:
#!/usr/local/bin/python
adjusting for the location of your python3. Then you could change the file to executable using:
chmod u+x script
After this you would be able to run your script with just
script
#!/usr/bin/env python to avoid hardcoding the location of the python interpreter.
/usr/bin/env with python as argument. env will run the first python it finds in your $PATH. More info here: stackoverflow.com/a/2429517/7228176