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Issue #23731: Implement PEP 488.

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The concept of .pyo files no longer exists. Now .pyc files have an
optional `opt-` tag which specifies if any extra optimizations beyond
the peepholer were applied.
This commit is contained in:
Brett Cannon 2015-04-13 14:21:02 -04:00
parent a63cc21234
commit f299abdafa
56 changed files with 4731 additions and 4621 deletions
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11
Doc/tutorial/modules.rst
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@ -216,15 +216,15 @@ Some tips for experts:
statements, the ``-OO`` switch removes both assert statements and __doc__
strings. Since some programs may rely on having these available, you should
only use this option if you know what you're doing. "Optimized" modules have
a .pyo rather than a .pyc suffix and are usually smaller. Future releases may
an ``opt-`` tag and are usually smaller. Future releases may
change the effects of optimization.
* A program doesn't run any faster when it is read from a ``.pyc`` or ``.pyo``
* A program doesn't run any faster when it is read from a ``.pyc``
file than when it is read from a ``.py`` file; the only thing that's faster
about ``.pyc`` or ``.pyo`` files is the speed with which they are loaded.
about ``.pyc`` files is the speed with which they are loaded.
* The module :mod:`compileall` can create .pyc files (or .pyo files when
:option:`-O` is used) for all modules in a directory.
* The module :mod:`compileall` can create .pyc files for all modules in a
directory.
* There is more detail on this process, including a flow chart of the
decisions, in PEP 3147.
@ -548,4 +548,3 @@ modules found in a package.
.. [#] In fact function definitions are also 'statements' that are 'executed'; the
execution of a module-level function definition enters the function name in
the module's global symbol table.