Add three new APIs: PyRun_AnyFileEx(), PyRun_SimpleFileEx(),

PyRun_FileEx().  These are the same as their non-Ex counterparts but
have an extra argument, a flag telling them to close the file when
done.

Then this is used by Py_Main() and execfile() to close the file after
it is parsed but before it is executed.

Adding APIs seems strange given the feature freeze but it's the only
way I see to close the bug report without incompatible changes.

[ Bug #110616 ] source file stays open after parsing is done (PR#209)

Include/pythonrun.h

@@ -29,9 +29,11 @@ DL_IMPORT(PyThreadState *) Py_NewInterpreter(void);
 DL_IMPORT(void) Py_EndInterpreter(PyThreadState *);
 
 DL_IMPORT(int) PyRun_AnyFile(FILE *, char *);
+DL_IMPORT(int) PyRun_AnyFileEx(FILE *, char *, int);
 
 DL_IMPORT(int) PyRun_SimpleString(char *);
 DL_IMPORT(int) PyRun_SimpleFile(FILE *, char *);
+DL_IMPORT(int) PyRun_SimpleFileEx(FILE *, char *, int);
 DL_IMPORT(int) PyRun_InteractiveOne(FILE *, char *);
 DL_IMPORT(int) PyRun_InteractiveLoop(FILE *, char *);
 
@@ -40,6 +42,8 @@ DL_IMPORT(struct _node *) PyParser_SimpleParseFile(FILE *, char *, int);
 
 DL_IMPORT(PyObject *) PyRun_String(char *, int, PyObject *, PyObject *);
 DL_IMPORT(PyObject *) PyRun_File(FILE *, char *, int, PyObject *, PyObject *);
+DL_IMPORT(PyObject *) PyRun_FileEx(FILE *, char *, int,
+				   PyObject *, PyObject *, int);
 
 DL_IMPORT(PyObject *) Py_CompileString(char *, char *, int);
 

Modules/main.c

@@ -268,11 +268,10 @@ Py_Main(int argc, char **argv)
 				}
 			}
 		}
-		sts = PyRun_AnyFile(
+		sts = PyRun_AnyFileEx(
 			fp,
-			filename == NULL ? "<stdin>" : filename) != 0;
-		if (filename != NULL)
-			fclose(fp);
+			filename == NULL ? "<stdin>" : filename,
+			filename != NULL) != 0;
 	}
 
 	if (inspect && stdin_is_interactive &&

Python/bltinmodule.c

@@ -815,10 +815,7 @@ builtin_execfile(PyObject *self, PyObject *args)
 		PyErr_SetFromErrno(PyExc_IOError);
 		return NULL;
 	}
-	res = PyRun_File(fp, filename, Py_file_input, globals, locals);
-	Py_BEGIN_ALLOW_THREADS
-	fclose(fp);
-	Py_END_ALLOW_THREADS
+	res = PyRun_FileEx(fp, filename, Py_file_input, globals, locals, 1);
 	return res;
 }
 

Python/pythonrun.c

@@ -449,13 +449,23 @@ initsite(void)
 
 int
 PyRun_AnyFile(FILE *fp, char *filename)
+{
+	return PyRun_AnyFileEx(fp, filename, 0);
+}
+
+int
+PyRun_AnyFileEx(FILE *fp, char *filename, int closeit)
 {
 	if (filename == NULL)
 		filename = "???";
-	if (Py_FdIsInteractive(fp, filename))
-		return PyRun_InteractiveLoop(fp, filename);
+	if (Py_FdIsInteractive(fp, filename)) {
+		int err = PyRun_InteractiveLoop(fp, filename);
+		if (closeit)
+			fclose(fp);
+		return err;
+	}
 	else
-		return PyRun_SimpleFile(fp, filename);
+		return PyRun_SimpleFileEx(fp, filename, closeit);
 }
 
 int
@@ -541,6 +551,12 @@ PyRun_InteractiveOne(FILE *fp, char *filename)
 
 int
 PyRun_SimpleFile(FILE *fp, char *filename)
+{
+	return PyRun_SimpleFileEx(fp, filename, 0);
+}
+
+int
+PyRun_SimpleFileEx(FILE *fp, char *filename, int closeit)
 {
 	PyObject *m, *d, *v;
 	char *ext;
@@ -558,7 +574,8 @@ PyRun_SimpleFile(FILE *fp, char *filename)
 #endif /* macintosh */
 		) {
 		/* Try to run a pyc file. First, re-open in binary */
-		/* Don't close, done in main: fclose(fp); */
+		if (closeit)
+			fclose(fp);
 		if( (fp = fopen(filename, "rb")) == NULL ) {
 			fprintf(stderr, "python: Can't reopen .pyc file\n");
 			return -1;
@@ -568,7 +585,7 @@ PyRun_SimpleFile(FILE *fp, char *filename)
 			Py_OptimizeFlag = 1;
 		v = run_pyc_file(fp, filename, d, d);
 	} else {
-		v = PyRun_File(fp, filename, Py_file_input, d, d);
+		v = PyRun_FileEx(fp, filename, Py_file_input, d, d, closeit);
 	}
 	if (v == NULL) {
 		PyErr_Print();
@@ -845,8 +862,17 @@ PyObject *
 PyRun_File(FILE *fp, char *filename, int start, PyObject *globals,
 	   PyObject *locals)
 {
-	return run_err_node(PyParser_SimpleParseFile(fp, filename, start),
-			    filename, globals, locals);
+	PyRun_FileEx(fp, filename, start, globals, locals, 0);
+}
+
+PyObject *
+PyRun_FileEx(FILE *fp, char *filename, int start, PyObject *globals,
+	   PyObject *locals, int closeit)
+{
+	node *n = PyParser_SimpleParseFile(fp, filename, start);
+	if (closeit)
+		fclose(fp);
+	return run_err_node(n, filename, globals, locals);
 }
 
 static PyObject *