Relative import in Python 3 not working -

i have following directory:

mydirectory ├── __init__.py ├── file1.py  └── file2.py

i have function f defined in file1.py.

if, in file2.py, do

from .file1 import f

i following error:

systemerror: parent module '' not loaded, cannot perform relative import

why? , how make work?

since file1 , file2 in same directory, don't need have __init__.py file. if you're going scaling up, leave there.

to import in file in same directory, this

from file1 import f

i.e., don't need relative path .file1 because in same directory.

if main function, script, or whatever, running whole application in directory, have make relative wherever being executed.

Three