New submission from STINNER Victor:
The definition of a new nametuple creates a large Python script to create the
new type. The code stores the code in a private attribute:
namespace = dict(__name__='namedtuple_%s' % typename)
exec(class_definition, namespace)
result = namespace[typename]
result._source = class_definition
This attribute wastes memory, I don't understand the purpose of the attribute.
It was not discussed in an issue, so I guess that there is no real use case:
changeset: 68879:bffdd7e9265c
user: Raymond Hettinger <[email protected]>
date: Wed Mar 23 12:52:23 2011 -0700
files: Doc/library/collections.rst Lib/collections/__init__.py
Lib/test/test_collections.py
description:
Expose the namedtuple source with a _source attribute.
Can we just drop this attribute to reduce the Python memory footprint?
----------
messages: 203270
nosy: haypo, rhettinger
priority: normal
severity: normal
status: open
title: Drop _source attribute of namedtuple
versions: Python 3.4
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<http://bugs.python.org/issue19640>
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