mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-09-27 10:50:04 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 13

bpo-37646: Document that eval() cannot access nested scopes (GH-15117) (GH-15155)

Browse source 
(cherry picked from commit 610a4823cc)

Co-authored-by: Raymond Hettinger <rhettinger@users.noreply.github.com>
This commit is contained in:
Miss Islington (bot) 2019-08-06 18:07:59 -07:00 • committed by Raymond Hettinger
parent ef0b81927a
commit 9341dcb4b9
1 changed files with 10 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

16
Doc/library/functions.rst
View file

@ -465,12 +465,16 @@ are always available. They are listed here in alphabetical order.
dictionaries as global and local namespace. If the *globals* dictionary is dictionaries as global and local namespace. If the *globals* dictionary is
present and does not contain a value for the key ``__builtins__``, a present and does not contain a value for the key ``__builtins__``, a
reference to the dictionary of the built-in module :mod:`builtins` is reference to the dictionary of the built-in module :mod:`builtins` is
inserted under that key before *expression* is parsed. inserted under that key before *expression* is parsed. This means that
This means that *expression* normally has full *expression* normally has full access to the standard :mod:`builtins`
access to the standard :mod:`builtins` module and restricted environments are module and restricted environments are propagated. If the *locals*
propagated. If the *locals* dictionary is omitted it defaults to the *globals* dictionary is omitted it defaults to the *globals* dictionary. If both
dictionary. If both dictionaries are omitted, the expression is executed in the dictionaries are omitted, the expression is executed with the *globals* and
environment where :func:`eval` is called. The return value is the result of *locals* in the environment where :func:`eval` is called. Note, *eval()*
does not have access to the :term:`nested scope`\s (non-locals) in the
enclosing environment.
The return value is the result of
the evaluated expression. Syntax errors are reported as exceptions. Example: the evaluated expression. Syntax errors are reported as exceptions. Example:
>>> x = 1 >>> x = 1