Import Custom Package/Library/Module In Python

Python - 載入自己寫的套件/模組/包/Library/Modules

Library, also called modules, packages in Python. In fact, it seems there is some difference between these words, but I haven’t dived so deep. I don’t think it really matters either. In short, packages mean collections of bulk code, like famous ones, Pandas, and NumPy.

Many awesome programmers tend to develop their toolkit. It can be simple, but helpful to your effectiveness. I named my package Arsenal.

Include Custom Packages In Projects

I use GitHub to execute version control and have a repository called Arsenal. When I start a new project, I always clone the newest version Arsenal to the project directory, then import in the other Python files. Usually, you will keep optimizing and expanding the toolkit, and some inevitable modifying or reconstructing. This method can prevent version conflicts and not crash your previous projects.

Copy, Paste And Work

How to load your custom package in projects after all? Just copy-paste the code below.

import sys
# Assign project_home as project directory
project_home = u'/Users/Aron/Documents/Project'
if project_home not in sys.path:
    sys.path = [project_home] + sys.path
# Import whole module or specific function
import arsenal
from arsenal import custom_function

Remember to note that the code only adds the project path to sys.path temporarily, but it won’t affect system settings. You can restart Kernal to check.

A data scientist working in a retail company, with experience in web design and marketing. Recently dives into cryptocurrency and quantitative investing.