Even if my file is "main.py",cannot run my project

[sylas]

I renamed my main.py to __main__.py, as you can see on the above error message.

[Gribouillis]

I renamed my main.py to __main__.py, as you can see on the above error message.

I can't see that on the error message because the error message says that it cannot find __main__, not that it finds __main__ and is unhappy with it.

Try the following experiment: create a folder foo containing a single file __main__.py with the following code

print('hello world')

Then run

Output:
python foo

in a console. It should print hello world. On my box (linux) it works both with python 3 and python 2.

[sylas]

 Directory of E:\Documents\foo 05/03/2018 08:19 <DIR> . 05/03/2018 08:19 <DIR> .. 05/03/2018 08:20 21 __main__.py 1 File(s) 21 bytes 2 Dir(s) 467 952 185 344 bytes free E:\Documents\foo>python __main__.py hello world E:\Documents\foo>

---

Bravo Gribouillis. Your foo works well.

E:\Documents>python foo hello world E:\Documents>

[sylas]

I made a mistake while renaming on Py1 the famous __main__.py. So my new Py1 works very well with "python Py1". Thanks again to Gribouillis.