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Mention __cached__ in the import ref.

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Brett Cannon 2013-05-25 11:32:50 -04:00
parent 533f1ed334
commit 4b4e38e7d4
1 changed files with 5 additions and 1 deletions
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Doc/reference/import.rst
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@ -353,7 +353,11 @@ Loaders must satisfy the following requirements:
* The loader may set the ``__file__`` attribute of the module. If set, this
attribute's value must be a string. The loader may opt to leave
``__file__`` unset if it has no semantic meaning (e.g. a module loaded from
a database).
a database). If ``__file__`` is set, it may also be appropriate to set the
``__cached__`` attribute which is the path to any compiled version of the
code (e.g. byte-compiled file). The file does not need to exist to set this
attribute; the path can simply point to whether the compiled file would
exist (see :pep:`3147`).
* The loader may set the ``__name__`` attribute of the module. While not
required, setting this attribute is highly recommended so that the