as Alias
Last updated: 2026-09-22
as Alias
as aliases an imported module/name; also used in with and except to bind a name.
| Category | Keywords & Statements |
|---|---|
| Kind | Keyword / Statement |
| Python Version | all |
📝 Syntax
import module as alias
from module import name as alias▶ Example
Edit the code, press Run, and see the result in the output panel:
Output：
[1, 2]🏷️ Related Keywords / Statements
💡 Related Cases
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❓ FAQ
QHow is `as` used in `except` and `with`?
A`except ValueError as e` binds the caught exception object to the name `e`; `with open(...) as f` binds the object returned by the context manager's `__enter__` to `f`.
QAfter `import numpy as np`, can I still use the original name?
ANo. After `as`, the name `numpy` is no longer bound; you must access it via `np`. To keep the original name, import `numpy` again separately.
QWhat is the difference between `import a as b` and `from a import x as y`?
AThe former aliases the whole module and you access it as `b.sqrt()`; the latter aliases a single name from the module and you call `y` directly. The first introduces one name (the module); the second introduces the selected name.
