ensure-import 0.3.0

Auto install third part packages by pip into virtual environment when import error.

ensure_import

Auto install third part packages by pip into virtual environment when import error.

Install

pip install ensure_import

Usage

• Simple case that package name is module name

from ensure_import import EnsureImport as _EI

while (_ei := _EI()).trying:
    with _ei:
        import uvicorn
        from fastapi import FastAPI

• Package name is difference from module name

while (_ei := _EI()).trying:
    with _ei(dotenv='python-dotenv', odbc='pyodbc'):
        import numpy as np
        import uvicorn
        import odbc  # who's package name is `pyodbc`
        from fastapi import FastAPI
        # package name of dotenv is `python-dotenv`
        from dotenv import load_dotenv

• Supply module path

while (_ei := _EI('..')).trying:
    with _ei:
        import gunicorn
        import uvicorn

This is equal to:

try:
    import gunicorn
    import uvicorn
except ImportError:
    import sys
    sys.path.append('..')

    import gunicorn
    import uvicorn