python.pl:
print join " ", "hello", "world\n"

python.py:
print("hello", "world", sep=" ")

pythone.py:
import os
print(os.environ['hello'])

##</code><code>##

% python python.pl
It parses as Perl so I am running it ...
hello world

% python python.py
Can't modify constant item in scalar assignment at python.py line 1, near "" ")
"
Execution of python.py aborted due to compilation errors.
I guess it is &*^#$* pyton /sic/ ...
hello world

% export hello="hello world" 
% python pythone.py
syntax error at pythone.py line 2, near "environ["
Execution of pythone.py aborted due to compilation errors.
I guess it is &*^#$* pyton /sic/ ...
hello world