Issue #20769: Improve reload() docs. Patch by Dorian Pula.
diff --git a/Doc/library/functions.rst b/Doc/library/functions.rst
index f8f8780..8fac448 100644
--- a/Doc/library/functions.rst
+++ b/Doc/library/functions.rst
@@ -1191,10 +1191,11 @@
except NameError:
cache = {}
- It is legal though generally not very useful to reload built-in or dynamically
- loaded modules, except for :mod:`sys`, :mod:`__main__` and :mod:`__builtin__`.
- In many cases, however, extension modules are not designed to be initialized
- more than once, and may fail in arbitrary ways when reloaded.
+ It is generally not very useful to reload built-in or dynamically loaded
+ modules. Reloading :mod:`sys`, :mod:`__main__`, :mod:`builtins` and other
+ key modules is not recommended. In many cases extension modules are not
+ designed to be initialized more than once, and may fail in arbitrary ways
+ when reloaded.
If a module imports objects from another module using :keyword:`from` ...
:keyword:`import` ..., calling :func:`reload` for the other module does not