Move sys.implementation -> _imp

Author: mdboom

Lib/importlib/_bootstrap_external.py

@@ -221,7 +221,7 @@ def _write_atomic(path, data, mode=0o666):
 
 _code_type = type(_write_atomic.__code__)
 
-MAGIC_NUMBER = (sys.implementation._pyc_magic_number).to_bytes(2, 'little') + b'\r\n'
+MAGIC_NUMBER = (_imp._pyc_magic_number).to_bytes(2, 'little') + b'\r\n'
 
 _RAW_MAGIC_NUMBER = int.from_bytes(MAGIC_NUMBER, 'little')  # for import.c
 

Python/import.c

@@ -4826,6 +4826,10 @@ imp_module_exec(PyObject *module)
         return -1;
     }
 
+    if (PyModule_AddIntConstant(module, "_pyc_magic_number", PYC_MAGIC_NUMBER) < 0) {
+        return -1;
+    }
+
     return 0;
 }
 

Python/sysmodule.c

@@ -21,7 +21,6 @@ Data members:
 #include "pycore_frame.h"         // _PyInterpreterFrame
 #include "pycore_initconfig.h"    // _PyStatus_EXCEPTION()
 #include "pycore_long.h"          // _PY_LONG_MAX_STR_DIGITS_THRESHOLD
-#include "pycore_magic_number.h"  // PYC_MAGIC_NUMBER
 #include "pycore_modsupport.h"    // _PyModule_CreateInitialized()
 #include "pycore_namespace.h"     // _PyNamespace_New()
 #include "pycore_object.h"        // _PyObject_DebugTypeStats()
@@ -3320,14 +3319,6 @@ make_impl_info(PyObject *version_info)
     if (res < 0)
         goto error;
 
-    value = PyLong_FromLong(PYC_MAGIC_NUMBER);
-    if (value == NULL)
-        goto error;
-    res = PyDict_SetItemString(impl_info, "_pyc_magic_number", value);
-    Py_DECREF(value);
-    if (res < 0)
-        goto error;
-
 #ifdef MULTIARCH
     value = PyUnicode_FromString(MULTIARCH);
     if (value == NULL)