Move abi_features to sys from sysconfig

peps/pep-0790.rst

@@ -57,16 +57,16 @@ Examples
 Dependencies can be marked as required for a free threading build of python
 using the following syntax::
 
-    cython; "free-threading" in sysconfig_abi_features
+    cython; "free-threading" in sys_abi_features
 
 or, explicitly for a non-free threading build::
 
-    cython; "free-threading" not in sysconfig_abi_features
+    cython; "free-threading" not in sys_abi_features
 
 Concepts
 --------
 
-This introduces the new marker variable ``sysconfig_abi_features``
+This introduces the new marker variable ``sys_abi_features``
 corresponding to a list of proper feature names that gives more accessible
 information about the interpreters ABI that so far has been available via the
 ``sys.abiflags`` string.
@@ -76,15 +76,15 @@ Grammar
 
 The grammar laid out in :pep:`508` and maintained in the
 :ref:`packaging:dependency-specifiers` will be extended to include the
-``sysconfig_abi_features`` marker by augmenting the definition of ``env_var``
+``sys_abi_features`` marker by augmenting the definition of ``env_var``
 as follows::
 
     env_var       = ('python_version' | 'python_full_version' |
                      'os_name' | 'sys_platform' | 'platform_release' |
                      'platform_system' | 'platform_version' |
                      'platform_machine' | 'platform_python_implementation' |
                      'implementation_name' | 'implementation_version' |
-                     'sysconfig_abi_features' |
+                     'sys_abi_features' |
                      'extra' # ONLY when defined by a containing layer
                      )
 
@@ -102,8 +102,8 @@ row:
     * - Marker
       - Python equivalent
       - Sample values
-    * - ``sysconfig_abi_features``
-      - ``sysconfig.abi_features`` [#sysconfig-abi-features]_
+    * - ``sys_abi_features``
+      - ``sys.abi_features`` [#sys-abi-features]_
       - ``""``, ``"free-threading"``
 
 Backwards Compatibility
@@ -133,7 +133,7 @@ in :ref:`packaging:dependency-specifiers`.
 The new environment marker can be introduced in the same document.
 Additionally, both for package authors and users, free-threading specific
 guidance can be provided at the `Python free-threading guide`_.
-If added to the ``sysconfig`` module, the new ``sysconfig.abi_features``
+If added to the ``sys`` module, the new ``sys.abi_features``
 attribute should be documented in the Python standard library documentation.
 
 
@@ -164,8 +164,8 @@ Open Issues
 Footnotes
 =========
 
-.. [#sysconfig-abi-features] This is contingent on the availability of the
-   ``sysconfig.abi_features`` attribute in the Python standard library. In
+.. [#sys-abi-features] This is contingent on the availability of the
+   ``sys.abi_features`` attribute in the Python standard library. In
    versions that don't provide this attribute, the marker will be constructed
    from other available information, such as the ``sys.abiflags`` string.