How deeply does Python Workout, Second Edition cover wildcard import?

Defines __all__ through a focused exercise, but does not develop wildcard-import internals or broader trade-offs.

Wildcard import

As explained in Python Workout, Second Edition

A wildcard import imports the names designated for export by a module rather than naming each imported name individually.

A wildcard import uses `from module import *` to bring in the names designated for export, instead of naming each imported name individually. section 9.9

Control the imported names

Define module `stuff` with variables `a`, `b`, and `c`, plus functions `foo` and `bar`. Set `__all__` so `from stuff import *` imports `a`, `c`, and `bar`, but not `b` or `foo`. section 9.9

How Python Workout, Second Edition covers it

liveBook manning.com

Read Python Workout, Second Edition on liveBook Get the book at manning.com

Also explained in

liveBook manning.com

The Quick Python Book, Fourth EditionA wildcard import is an import statement form that brings the names exported by a module directly into the importing namespace.

Compare how 2 books explain wildcard import →

Related concepts

__all__configured by · __all__ is a module-level sequence of names specifying which names a Python module exports for wildcard imports.
import statementkind of · An import statement is a source-code declaration that makes names or definitions from another module, package, or namespace available in the current scope.
namespaceuses · A namespace is a naming context or identifier space in which names are defined and resolved, distinguishing them from names in other contexts.
use declarationuses · A use declaration is Rust syntax that brings names or items from a module or crate into scope for unqualified access.

This explainer was generated by Manning's knowledge graph from the text of Python Workout, Second Edition. The section links point to the parts of the book it draws on.