ensure Python.h is included first in most circumstances

Except when "pyconfig.h" is included first, and for platform specific
code such as android/emscripten

Author: chouquette

Modules/_hashopenssl.c

@@ -22,7 +22,6 @@
 #  define Py_BUILD_CORE_MODULE 1
 #endif
 
-#include <stdbool.h>
 #include "Python.h"
 #include "pycore_hashtable.h"
 #include "pycore_strhex.h"               // _Py_strhex()
@@ -37,6 +36,7 @@
 #include <openssl/objects.h>
 #include <openssl/err.h>
 
+#include <stdbool.h>
 
 #ifndef OPENSSL_THREADS
 #  error "OPENSSL_THREADS is not defined, Python requires thread-safe OpenSSL"

Parser/string_parser.c

@@ -1,5 +1,3 @@
-#include <stdbool.h>
-
 #include <Python.h>
 #include "pycore_bytesobject.h"   // _PyBytes_DecodeEscape()
 #include "pycore_unicodeobject.h" // _PyUnicode_DecodeUnicodeEscapeInternal()
@@ -8,6 +6,8 @@
 #include "pegen.h"
 #include "string_parser.h"
 
+#include <stdbool.h>
+
 //// STRING HANDLING FUNCTIONS ////
 
 static int

Python/codegen.c

@@ -12,8 +12,6 @@
  * objects.
  */
 
-#include <stdbool.h>
-
 #include "Python.h"
 #include "opcode.h"
 #include "pycore_ast.h"           // _PyAST_GetDocString()
@@ -32,6 +30,8 @@
 #include "pycore_opcode_metadata.h" // _PyOpcode_opcode_metadata, _PyOpcode_num_popped/pushed
 #undef NEED_OPCODE_METADATA
 
+#include <stdbool.h>
+
 #define COMP_GENEXP   0
 #define COMP_LISTCOMP 1
 #define COMP_SETCOMP  2

Python/flowgraph.c

@@ -1,6 +1,3 @@
-
-#include <stdbool.h>
-
 #include "Python.h"
 #include "opcode.h"
 #include "pycore_flowgraph.h"
@@ -12,6 +9,8 @@
 #include "pycore_opcode_utils.h"
 #include "pycore_opcode_metadata.h" // OPCODE_HAS_ARG, etc
 
+#include <stdbool.h>
+
 
 #undef SUCCESS
 #undef ERROR

Python/index_pool.c

@@ -1,10 +1,10 @@
-#include <stdbool.h>
-
 #include "Python.h"
 
 #include "pycore_index_pool.h"
 #include "pycore_lock.h"
 
+#include <stdbool.h>
+
 #ifdef Py_GIL_DISABLED
 
 static inline void

Python/instruction_sequence.c

@@ -5,8 +5,6 @@
  */
 
 
-#include <stdbool.h>
-
 #include "Python.h"
 
 #include "pycore_compile.h" // _PyCompile_EnsureArrayLargeEnough
@@ -22,6 +20,8 @@ typedef _Py_SourceLocation location;
 
 #include "clinic/instruction_sequence.c.h"
 
+#include <stdbool.h>
+
 #undef SUCCESS
 #undef ERROR
 #define SUCCESS 0