py for Linux - Ever wanted sth like the py launcher but for linux... just copy this do /bin and chmod +x /bin/py to make it executable

py

#!/usr/bin/python3.6

from subprocess import call
from shutil import which
from sys import exit as sexy_exit, argv
from re import fullmatch
from os import environ
from os.path import join as path_join, isfile

command = 'python3.6'

PATH = path_join(environ['HOME'],'pydef')

if isfile(PATH):
	with open(PATH) as x:
		command = x.read()

del argv[0]

set_def = False

for idx,arg in enumerate(argv):
	if arg == '-sad':
		arg = '--set-as-default'
	if arg == '--set-as-default':
		del argv[idx]
		set_def = True
		break

for idx,arg in enumerate(argv):
	x = fullmatch('-(\d).?(\d)?', arg)
	if x:
		del argv[idx]
		vP1 = x.group(1)
		vP2 = x.group(2)
		if vP2:
			if which(f'python{vP1}.{vP2}') is not None:
				command = f'python{vP1}.{vP2}'
			else:
				print('You don\'t have that version of python installed')
				sexy_exit(100)
		else:
			for i in range(0,10):
				if which(f'python{vP1}.{i}'):
					command = f'python{vP1}.{i}'
					break

if set_def:
	print('Setting default...')
	with open(PATH,'w') as x:
		x.write(command)
x = call([command] + argv)
sexy_exit(x)

this currently does not replicate at any length py on windows for linux... it only gives you the basic features... for development I strongly suggest using the original package name like python3.6
The probably most important missing feature is traceback, which this does not handle correctly, you will only see the internal tracback from this file....