python file import another python file, prompts error

Question

I'm on mac using python2.7 and I have 2 python files under same directory

$ls *.py
1p.py 2.py

And they're very simple:

$cat 1p.py
def f():
    print "hello"

$cat 2.py
import 1p
f()

But running 2.py failed:

$python 2.py
File "2.py", line 1
    import 1p
        ^
SyntaxError: invalid syntax

Do I need to setup and env variable, or to change my program? Thanks

Possible duplicate of [In python, how to import filename starts with a number](http://stackoverflow.com/questions/9090079/in-python-how-to-import-filename-starts-with-a-number) — Nick is tired, Jan 12 '17 at 12:57

score 1 · Accepted Answer · answered Jan 12 '17 at 12:56

In order to be imported, module names, and thus file names must be valid python identifiers. So even if your filesystem accepts the name, it's not enough.

An identifier like 1p isn't valid, you have to rename your module file. Why not p1.py instead? That would work.

python file import another python file, prompts error

1 Answers1