bpo-29770: remove outdated PYO related info (GH-590)
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@ -155,7 +155,7 @@ Glossary
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bytecode
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Python source code is compiled into bytecode, the internal representation
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of a Python program in the CPython interpreter. The bytecode is also
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cached in ``.pyc`` and ``.pyo`` files so that executing the same file is
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cached in ``.pyc`` files so that executing the same file is
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faster the second time (recompilation from source to bytecode can be
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avoided). This "intermediate language" is said to run on a
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:term:`virtual machine` that executes the machine code corresponding to
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@ -464,12 +464,12 @@ The :class:`PyZipFile` constructor takes the same parameters as the
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added to the archive, compiling if necessary.
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If *pathname* is a file, the filename must end with :file:`.py`, and
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just the (corresponding :file:`\*.py[co]`) file is added at the top level
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just the (corresponding :file:`\*.pyc`) file is added at the top level
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(no path information). If *pathname* is a file that does not end with
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:file:`.py`, a :exc:`RuntimeError` will be raised. If it is a directory,
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and the directory is not a package directory, then all the files
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:file:`\*.py[co]` are added at the top level. If the directory is a
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package directory, then all :file:`\*.py[co]` are added under the package
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:file:`\*.pyc` are added at the top level. If the directory is a
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package directory, then all :file:`\*.pyc` are added under the package
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name as a file path, and if any subdirectories are package directories,
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all of these are added recursively.
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@ -9,7 +9,7 @@
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--------------
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This module adds the ability to import Python modules (:file:`\*.py`,
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:file:`\*.py[co]`) and packages from ZIP-format archives. It is usually not
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:file:`\*.pyc`) and packages from ZIP-format archives. It is usually not
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needed to use the :mod:`zipimport` module explicitly; it is automatically used
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by the built-in :keyword:`import` mechanism for :data:`sys.path` items that are paths
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to ZIP archives.
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@ -532,8 +532,8 @@ conflict.
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.. envvar:: PYTHONDONTWRITEBYTECODE
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If this is set to a non-empty string, Python won't try to write ``.pyc`` or
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``.pyo`` files on the import of source modules. This is equivalent to
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If this is set to a non-empty string, Python won't try to write ``.pyc``
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files on the import of source modules. This is equivalent to
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specifying the :option:`-B` option.
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@ -53,7 +53,7 @@ static const char usage_1[] = "\
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Options and arguments (and corresponding environment variables):\n\
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-b : issue warnings about str(bytes_instance), str(bytearray_instance)\n\
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and comparing bytes/bytearray with str. (-bb: issue errors)\n\
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-B : don't write .py[co] files on import; also PYTHONDONTWRITEBYTECODE=x\n\
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-B : don't write .pyc files on import; also PYTHONDONTWRITEBYTECODE=x\n\
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-c cmd : program passed in as string (terminates option list)\n\
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-d : debug output from parser; also PYTHONDEBUG=x\n\
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-E : ignore PYTHON* environment variables (such as PYTHONPATH)\n\
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@ -1101,7 +1101,7 @@ get_decompress_func(void)
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_Py_IDENTIFIER(decompress);
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if (importing_zlib != 0)
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/* Someone has a zlib.py[co] in their Zip file;
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/* Someone has a zlib.pyc in their Zip file;
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let's avoid a stack overflow. */
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return NULL;
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importing_zlib = 1;
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@ -1260,7 +1260,7 @@ eq_mtime(time_t t1, time_t t2)
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return d <= 1;
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}
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/* Given the contents of a .py[co] file in a buffer, unmarshal the data
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/* Given the contents of a .pyc file in a buffer, unmarshal the data
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and return the code object. Return None if it the magic word doesn't
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match (we do this instead of raising an exception as we fall back
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to .py if available and we don't want to mask other errors).
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@ -1400,7 +1400,7 @@ get_mtime_of_source(ZipImporter *self, PyObject *path)
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PyObject *toc_entry, *stripped;
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time_t mtime;
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/* strip 'c' or 'o' from *.py[co] */
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/* strip 'c' from *.pyc */
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if (PyUnicode_READY(path) == -1)
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return (time_t)-1;
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stripped = PyUnicode_FromKindAndData(PyUnicode_KIND(path),
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@ -185,7 +185,7 @@ exists(wchar_t *filename)
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may extend 'filename' by one character.
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*/
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static int
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ismodule(wchar_t *filename, int update_filename) /* Is module -- check for .pyc/.pyo too */
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ismodule(wchar_t *filename, int update_filename) /* Is module -- check for .pyc too */
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{
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size_t n;
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@ -196,7 +196,7 @@ ismodule(wchar_t *filename, int update_filename) /* Is module -- check for .pyc/
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n = wcsnlen_s(filename, MAXPATHLEN+1);
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if (n < MAXPATHLEN) {
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int exist = 0;
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filename[n] = Py_OptimizeFlag ? L'o' : L'c';
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filename[n] = L'c';
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filename[n + 1] = L'\0';
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exist = exists(filename);
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if (!update_filename)
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@ -1,25 +1,19 @@
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# Remove all the .pyc and .pyo files under ../Lib.
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# Remove all the .pyc files under ../Lib.
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def deltree(root):
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import os
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from os.path import join
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npyc = npyo = 0
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npyc = 0
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for root, dirs, files in os.walk(root):
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for name in files:
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delete = False
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if name.endswith('.pyc'):
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delete = True
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# to be thorough
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if name.endswith(('.pyc', '.pyo')):
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npyc += 1
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elif name.endswith('.pyo'):
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delete = True
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npyo += 1
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if delete:
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os.remove(join(root, name))
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return npyc, npyo
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return npyc
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npyc, npyo = deltree("../Lib")
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print(npyc, ".pyc deleted,", npyo, ".pyo deleted")
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npyc = deltree("../Lib")
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print(npyc, ".pyc deleted")
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@ -4,8 +4,8 @@ rem Usage: rt [-d] [-O] [-q] [-x64] regrtest_args
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rem -d Run Debug build (python_d.exe). Else release build.
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rem -O Run python.exe or python_d.exe (see -d) with -O.
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rem -q "quick" -- normally the tests are run twice, the first time
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rem after deleting all the .py[co] files reachable from Lib/.
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rem -q runs the tests just once, and without deleting .py[co] files.
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rem after deleting all the .pyc files reachable from Lib/.
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rem -q runs the tests just once, and without deleting .pyc files.
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rem -x64 Run the 64-bit build of python (or python_d if -d was specified)
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rem from the 'amd64' dir instead of the 32-bit build in this dir.
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rem All leading instances of these switches are shifted off, and
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@ -45,7 +45,7 @@ set exe=%prefix%python%suffix%.exe
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set cmd="%exe%" %dashO% -u -Wd -E -bb -m test %regrtestargs%
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if defined qmode goto Qmode
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echo Deleting .pyc/.pyo files ...
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echo Deleting .pyc files ...
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"%exe%" "%pcbuild%rmpyc.py"
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echo Cleaning _pth files ...
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@ -55,7 +55,7 @@ echo on
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%cmd%
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@echo off
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echo About to run again without deleting .pyc/.pyo first:
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echo About to run again without deleting .pyc first:
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pause
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:Qmode
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@ -88,7 +88,7 @@ int Py_BytesWarningFlag; /* Warn on str(bytes) and str(buffer) */
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int Py_UseClassExceptionsFlag = 1; /* Needed by bltinmodule.c: deprecated */
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int Py_FrozenFlag; /* Needed by getpath.c */
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int Py_IgnoreEnvironmentFlag; /* e.g. PYTHONPATH, PYTHONHOME */
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int Py_DontWriteBytecodeFlag; /* Suppress writing bytecode files (*.py[co]) */
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int Py_DontWriteBytecodeFlag; /* Suppress writing bytecode files (*.pyc) */
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int Py_NoUserSiteDirectory = 0; /* for -s and site.py */
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int Py_UnbufferedStdioFlag = 0; /* Unbuffered binary std{in,out,err} */
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int Py_HashRandomizationFlag = 0; /* for -R and PYTHONHASHSEED */
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