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Dependency Injection with Import Hooks in Python 3

Kermit Alexander II on December 26, 2018

sys.meta_path is one of the best-kept secrets in the Python standard library, despite being squarely located in a module every Python programmer is...
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rhymes profile image
rhymes •

Hi Kermit, super interesting. I didn't know about sys.meta_path - seems also very handy to develop plugin systems like you did! Great for a big customizable app

A small suggestion: if you re-edit your post you can add syntax highlighting with tags like this:

>>> import platform
>>> platform.python_version()
'3.7.1'
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You just need to add python at the end of the three beginning ticks, like this:

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dangerontheranger profile image
Kermit Alexander II •

Ah, appreciate the tip on syntax highlighting! I've updated the article accordingly.

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florimondmanca profile image
Florimond Manca •

Interesting post! Thanks.

Have you tried seeing how static type checking behaves with this meta_path trick? Or would IDEs complain that the myapp.virtual.foo module does not exist?