New submission from levkivskyi:
The documentation on execution model
https://docs.python.org/3/reference/executionmodel.html contains the statement
"""
A class definition is an executable statement that may use and define names.
These references follow the normal rules for name resolution. The namespace of
the class definition becomes the attribute dictionary of the class. Names
defined at the class scope are not visible in methods.
"""
However, the following code (taken from
http://lackingrhoticity.blogspot.ch/2008/08/4-python-variable-binding-oddities.html):
x = "xtop"
y = "ytop"
def func():
x = "xlocal"
y = "ylocal"
class C:
print(x)
print(y)
y = 1
func()
prints
xlocal
ytop
In case of "normal rules for name resolution" it should rise UnboundLocalError.
I suggest replacing the mentioned statement with the following:
"""
A class definition is an executable statement that may use and define names.
Free variables follow the normal rules for name resolution, bound variables are
looked up in the global namespace. The namespace of the class definition
becomes the attribute dictionary of the class. Names defined at the class scope
are not visible in methods.
"""
or a similar one.
----------
assignee: docs@python
components: Documentation
messages: 242619
nosy: docs@python, levkivskyi
priority: normal
severity: normal
status: open
title: Incorrect (misleading) statement in the execution model documentation
type: behavior
versions: Python 3.4, Python 3.5
_______________________________________
Python tracker <[email protected]>
<http://bugs.python.org/issue24129>
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