What happens when you import a module?

摘要

We all "import" modules . But how does Python find and load modules, and making their definitions available? The answer is surprisingly complex. This talk walks you through the world of module importation, from the differences between "import" and "from .. import" to the load path, to finders and loaders. Even if you've been using Python for many years, you will likely discover quite a lot about what happens behind the `import` statement.

說明