Issue #23731: Implement PEP 488.
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.
diff --git a/Lib/py_compile.py b/Lib/py_compile.py
index 1277b93..166c488 100644
--- a/Lib/py_compile.py
+++ b/Lib/py_compile.py
@@ -1,4 +1,4 @@
-"""Routine to "compile" a .py file to a .pyc (or .pyo) file.
+"""Routine to "compile" a .py file to a .pyc file.
This module has intimate knowledge of the format of .pyc files.
"""
@@ -67,7 +67,7 @@
:param file: The source file name.
:param cfile: The target byte compiled file name. When not given, this
- defaults to the PEP 3147 location.
+ defaults to the PEP 3147/PEP 488 location.
:param dfile: Purported file name, i.e. the file name that shows up in
error messages. Defaults to the source file name.
:param doraise: Flag indicating whether or not an exception should be
@@ -85,12 +85,12 @@
Note that it isn't necessary to byte-compile Python modules for
execution efficiency -- Python itself byte-compiles a module when
it is loaded, and if it can, writes out the bytecode to the
- corresponding .pyc (or .pyo) file.
+ corresponding .pyc file.
However, if a Python installation is shared between users, it is a
good idea to byte-compile all modules upon installation, since
other users may not be able to write in the source directories,
- and thus they won't be able to write the .pyc/.pyo file, and then
+ and thus they won't be able to write the .pyc file, and then
they would be byte-compiling every module each time it is loaded.
This can slow down program start-up considerably.
@@ -105,8 +105,9 @@
"""
if cfile is None:
if optimize >= 0:
+ optimization = optimize if optimize >= 1 else ''
cfile = importlib.util.cache_from_source(file,
- debug_override=not optimize)
+ optimization=optimization)
else:
cfile = importlib.util.cache_from_source(file)
if os.path.islink(cfile):