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Update about on-demand creation.

This commit is contained in:
Barry Warsaw 2010-03-23 23:17:33 +00:00
parent b1c944fbd2
commit ceadcf5f92
1 changed files with 14 additions and 1 deletions
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15
pep-3147.txt
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@ -262,7 +262,8 @@ Case 5: read-only file systems
When the source lives on a read-only file system, or the `__pycache__`
directory or pyc file cannot otherwise be written, all the same rules
apply.
apply. This is also the case when `__pycache__` happens to be written
with permissions which do not allow for writing containing pyc files.
@ -569,6 +570,18 @@ in better with future possible use cases such as JIT output from
Unladen Swallow.
On-demand creation
------------------
The original use case was to support multiple versions of Python on
the same system. This could be accomplished solely through
pre-creation of `__pycache__` directories during the compilation phase
of installation, without also supporting on-demand creation of the
`__pycache__` directories. It seems however the consensus to be that
on-demand creation is useful enough to keep since it reduces clutter
in source directories.
References
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