global: rename some fields for consistency

Since version 5 is making a lot of changes, why don't we clean up some
other fields.

Author: indygreg

cpython-unix/build-cpython.sh

@@ -243,7 +243,7 @@ metadata = {
         "optimized_bytecode": importlib.machinery.OPTIMIZED_BYTECODE_SUFFIXES,
         "source": importlib.machinery.SOURCE_SUFFIXES,
     },
-    "bytecode_magic_number": codecs.encode(importlib.util.MAGIC_NUMBER, "hex").decode("ascii"),
+    "python_bytecode_magic_number": codecs.encode(importlib.util.MAGIC_NUMBER, "hex").decode("ascii"),
     "python_paths": {},
     "python_exe": "install/bin/python%s%s" % (sysconfig.get_python_version(), sys.abiflags),
     "python_major_minor_version": sysconfig.get_python_version(),

cpython-unix/build.py

@@ -729,8 +729,8 @@ def build_cpython(
             "python_version": entry["version"],
             "python_stdlib_test_packages": sorted(STDLIB_TEST_PACKAGES),
             "python_symbol_visibility": python_symbol_visibility,
-            "extension_module_loading": extension_module_loading,
-            "link_mode": "static",
+            "python_extension_module_loading": extension_module_loading,
+            "libpython_link_mode": "static",
             "crt_features": crt_features,
             "run_tests": "build/run_tests.py",
             "build_info": python_build_info(

cpython-windows/build.py

@@ -1900,8 +1900,8 @@ def build_cpython(python_entry_name: str, arch: str, sh_exe, profile):
             "python_version": python_version,
             "python_symbol_visibility": python_symbol_visibility,
             "python_stdlib_test_packages": sorted(STDLIB_TEST_PACKAGES),
-            "extension_module_loading": extension_module_loading,
-            "link_mode": "static" if static else "shared",
+            "python_extension_module_loading": extension_module_loading,
+            "libpython_link_mode": "static" if static else "shared",
             "crt_features": crt_features,
             "build_info": build_info,
             "licenses": entry["licenses"],

cpython-windows/generate_metadata.py

@@ -21,9 +21,9 @@
         "optimized_bytecode": importlib.machinery.OPTIMIZED_BYTECODE_SUFFIXES,
         "source": importlib.machinery.SOURCE_SUFFIXES,
     },
-    "bytecode_magic_number": codecs.encode(importlib.util.MAGIC_NUMBER, "hex").decode(
-        "ascii"
-    ),
+    "python_bytecode_magic_number": codecs.encode(
+        importlib.util.MAGIC_NUMBER, "hex"
+    ).decode("ascii"),
     "python_paths": {},
     "python_exe": "install/python.exe",
     "python_major_minor_version": sysconfig.get_python_version(),

docs/distributions.rst

@@ -188,13 +188,13 @@ python_suffixes
 
    (Version 5 or above only.)
 
-bytecode_magic_number
+python_bytecode_magic_number
    Magic number to use for bytecode files, expressed as a hexidecimal
    string.
 
    (Version 5 or above only.)
 
-link_mode
+libpython_link_mode
    How `libpython` is linked. Values can be one of the following:
 
    `static`
@@ -204,7 +204,12 @@ link_mode
       Dynamically linked. (A `libpythonXY` shared library will be part
       of the distribution.)
 
-   (Version 4 or above only.)
+   (Version 5 or above only.)
+
+link_mode
+   Alias of ``libpython_link_mode``.
+
+   (Version 4 or above only. Deprecated in version 5.)
 
 python_symbol_visibility
    Defines how Python symbols are defined in binaries.
@@ -219,7 +224,7 @@ python_symbol_visibility
 
    (Version 5 or above only.)
 
-extension_module_loading
+python_extension_module_loading
    Defines support for loading Python extension modules.
 
    The value is an array of strings denoting support for various