Probably not the most beautiful procedure, but this works:
cmds=""'
paste your commands, followed by '''
:
a = 1
b = 2
c = 3
'''
Then exec(cmds)
will execute them.
Or more directly,
exec('''
then paste your commands, followed by ''')
:
a = 1
b = 2
c = 3
''')
It’s just a trick, maybe there’s a more official, elegant way.