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Author: mattwang44

_sources/c-api/conversion.rst.txt

@@ -172,3 +172,58 @@ The following functions provide locale-independent string to number conversions.
 
    Case insensitive comparison of strings. The function works almost
    identically to :c:func:`!strncmp` except that it ignores the case.
+
+
+Character classification and conversion
+=======================================
+
+The following macros provide locale-independent (unlike the C standard library
+``ctype.h``) character classification and conversion.
+The argument must be a signed or unsigned :c:expr:`char`.
+
+
+.. c:macro:: Py_ISALNUM(c)
+
+   Return true if the character *c* is an alphanumeric character.
+
+
+.. c:macro:: Py_ISALPHA(c)
+
+   Return true if the character *c* is an alphabetic character (``a-z`` and ``A-Z``).
+
+
+.. c:macro:: Py_ISDIGIT(c)
+
+   Return true if the character *c* is a decimal digit (``0-9``).
+
+
+.. c:macro:: Py_ISLOWER(c)
+
+   Return true if the character *c* is a lowercase ASCII letter (``a-z``).
+
+
+.. c:macro:: Py_ISUPPER(c)
+
+   Return true if the character *c* is an uppercase ASCII letter (``A-Z``).
+
+
+.. c:macro:: Py_ISSPACE(c)
+
+   Return true if the character *c* is a whitespace character (space, tab,
+   carriage return, newline, vertical tab, or form feed).
+
+
+.. c:macro:: Py_ISXDIGIT(c)
+
+   Return true if the character *c* is a hexadecimal digit (``0-9``, ``a-f``, and
+   ``A-F``).
+
+
+.. c:macro:: Py_TOLOWER(c)
+
+   Return the lowercase equivalent of the character *c*.
+
+
+.. c:macro:: Py_TOUPPER(c)
+
+   Return the uppercase equivalent of the character *c*.

_sources/glossary.rst.txt

@@ -1025,6 +1025,15 @@ Glossary
       applied to all scopes, only those relying on a known set of local
       and nonlocal variable names are restricted to optimized scopes.
 
+   optional module
+      An :term:`extension module` that is part of the :term:`standard library`,
+      but may be absent in some builds of :term:`CPython`,
+      usually due to missing third-party libraries or because the module
+      is not available for a given platform.
+
+      See :ref:`optional-module-requirements` for a list of optional modules
+      that require third-party libraries.
+
    package
       A Python :term:`module` which can contain submodules or recursively,
       subpackages.  Technically, a package is a Python module with a

_sources/library/bz2.rst.txt

@@ -25,6 +25,8 @@ The :mod:`bz2` module contains:
 * The :func:`compress` and :func:`decompress` functions for one-shot
   (de)compression.
 
+.. include:: ../includes/optional-module.rst
+
 
 (De)compression of files
 ------------------------

_sources/library/compression.zstd.rst.txt

@@ -33,6 +33,8 @@ The :mod:`!compression.zstd` module contains:
 * The :class:`CompressionParameter`, :class:`DecompressionParameter`, and
   :class:`Strategy` classes for setting advanced (de)compression parameters.
 
+.. include:: ../includes/optional-module.rst
+
 
 Exceptions
 ----------

_sources/library/ctypes.rst.txt

@@ -14,6 +14,8 @@
 data types, and allows calling functions in DLLs or shared libraries.  It can be
 used to wrap these libraries in pure Python.
 
+.. include:: ../includes/optional-module.rst
+
 
 .. _ctypes-ctypes-tutorial:
 

_sources/library/curses.rst.txt

@@ -23,6 +23,8 @@ Linux and the BSD variants of Unix.
 
 .. include:: ../includes/wasm-mobile-notavail.rst
 
+.. include:: ../includes/optional-module.rst
+
 .. note::
 
    Whenever the documentation mentions a *character* it can be specified

_sources/library/ensurepip.rst.txt

@@ -30,6 +30,8 @@ when creating a virtual environment) or after explicitly uninstalling
    needed to bootstrap ``pip`` are included as internal parts of the
    package.
 
+.. include:: ../includes/optional-module.rst
+
 .. seealso::
 
    :ref:`installing-index`

_sources/library/functions.rst.txt

@@ -1887,7 +1887,7 @@ are always available.  They are listed here in alphabetical order.
    the same data with other ordering tools such as :func:`max` that rely
    on a different underlying method.  Implementing all six comparisons
    also helps avoid confusion for mixed type comparisons which can call
-   reflected the :meth:`~object.__gt__` method.
+   the reflected :meth:`~object.__gt__` method.
 
    For sorting examples and a brief sorting tutorial, see :ref:`sortinghowto`.
 

_sources/library/gzip.rst.txt

@@ -11,6 +11,8 @@
 This module provides a simple interface to compress and decompress files just
 like the GNU programs :program:`gzip` and :program:`gunzip` would.
 
+.. include:: ../includes/optional-module.rst
+
 The data compression is provided by the :mod:`zlib` module.
 
 The :mod:`gzip` module provides the :class:`GzipFile` class, as well as the

_sources/library/idle.rst.txt

@@ -37,6 +37,10 @@ IDLE has the following features:
 
 * configuration, browsers, and other dialogs
 
+The IDLE application is implemented in the :mod:`idlelib` package.
+
+.. include:: ../includes/optional-module.rst
+
 Menus
 -----