Issue #19207: Improved cross-references in the os, os.path, and posix modules
documentation.
diff --git a/Doc/library/posix.rst b/Doc/library/posix.rst
index ba1b4b5..06bab04 100644
--- a/Doc/library/posix.rst
+++ b/Doc/library/posix.rst
@@ -19,7 +19,7 @@
available through the :mod:`os` interface. Once :mod:`os` is imported, there is
*no* performance penalty in using it instead of :mod:`posix`. In addition,
:mod:`os` provides some additional functionality, such as automatically calling
-:func:`putenv` when an entry in ``os.environ`` is changed.
+:func:`~os.putenv` when an entry in ``os.environ`` is changed.
Errors are reported as exceptions; the usual exceptions are given for type
errors, while errors reported by the system calls raise :exc:`OSError`.
@@ -74,9 +74,10 @@
pathname of your home directory, equivalent to ``getenv("HOME")`` in C.
Modifying this dictionary does not affect the string environment passed on by
- :func:`execv`, :func:`popen` or :func:`system`; if you need to change the
- environment, pass ``environ`` to :func:`execve` or add variable assignments and
- export statements to the command string for :func:`system` or :func:`popen`.
+ :func:`~os.execv`, :func:`~os.popen` or :func:`~os.system`; if you need to
+ change the environment, pass ``environ`` to :func:`~os.execve` or add
+ variable assignments and export statements to the command string for
+ :func:`~os.system` or :func:`~os.popen`.
.. versionchanged:: 3.2
On Unix, keys and values are bytes.