import a file in python 3 in another folder code example
Example 1: import python module from another directory
import sys
# sys.path is a list of absolute path strings
sys.path.append('/path/to/application/app/folder')
import file
Example 2: python add module from another directory
# some_file.py
import sys
# insert at 1, 0 is the script path (or '' in REPL)
sys.path.insert(1, '/path/to/application/app/folder')
import file