How do I import a file that is in another directory?

Question

-Booking
    -components
        -db.py
    -scripts
        -insert_data.py

How do I import db.py in insert_data.py? (I'm using python 3)

Answer 1

from components import db

只要components有（可能为空） __init__.py就可以工作

Answer 2

1. Put __init__.py inside components folder
2. Access it from scripts folder using from ..components import db

Answer 3

There are several options, and it helps to know how Python's modules and packages work (which is not always completely straightforward and intuitive):

• What's the difference between a Python module and a Python package?
• What is __init__.py for?
• Importing files from different folder
• Relative imports for the billionth time
• How to import a module given the full path?
• https://docs.python.org/3/reference/import.html (even the official documentation can be helpful at times :)

One way is to explicitly modify the module search path in the beginning of your script:

import sys, os
sys.path.append(os.path.join(os.path.dirname(os.path.abspath(__file__)), '..', 'components'))
import db

A less hacky way uses relative import , as described in Importing from a relative path in Python and Execution of Python code with -m option or not .