How to configure Atom to run Python3 scripts?

Go to the Atom's menu bar -> Packages -> Script -> Configure Script(Or, you can use the shortcut Shift+Ctrl+Alt+O)

Then type python3 to the Command space.Hopefully, it will work.

i am using "script" package (3.18.1 by rgbkrk) to run code inside atom and this is how i fixed it

1. open package settings -> view code
2. open lib -> grammars -> python.coffee
3. change from python to python3 in those two places 'Selection Based' and 'File Based'

Install atom-runner in your Atom going into your settings of Atom and then inside Package and search for atom-runner and install it.

Now click on settings tab for atom-runner as shown above on picture.Then click on View Code as shown in below picture.

Then go to lib folder and open atom-runner.coffee and replace the following section of code:

defaultScopeMap:coffee: 'coffee'js: 'node'ruby: 'ruby'python: 'python3'go: 'go run'shell: 'bash'powershell: 'powershell -noninteractive -noprofile -c -'

Make sure that for python keyword value is python3, by default it is python. Refer to the pic below:

Other way is to find the location of python3 using command

which python3

for me output is :

/usr/local/bin/python3

and add as a shebang in your every python file. For example:-

#!/usr/local/bin/python3import sysprint("Version ",sys.version)

Only catch is that you have to write this in each file.