commit 42a4359390b78b3360e100fc9c075495e48354b2
author Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Mon Nov 18 07:10:31 2019 -0800
committer GitHub <noreply@github.com> Mon Nov 18 07:10:31 2019 -0800
tree 2bf1d752a5c121f902f66c752c1d2daccef9fd8c
parent bef2815533011be9f0ce5fa2965bcada76b509b8

bpo-38823: Clean up refleaks in _tkinter initialization. (GH-17206)


https://bugs.python.org/issue38823
(cherry picked from commit 289cf0fbf78c4f38c38ac71ac8b772be7ec2672f)

Co-authored-by: Brandt Bucher <brandtbucher@gmail.com>

Modules/_tkinter.c

diff --git a/Modules/_tkinter.c b/Modules/_tkinter.c
index b622c15..a1071e5 100644
--- a/Modules/_tkinter.c
+++ b/Modules/_tkinter.c
@@ -3549,11 +3549,13 @@
             if (!ret && GetLastError() == ERROR_ENVVAR_NOT_FOUND) {
                 str_path = _get_tcl_lib_path();
                 if (str_path == NULL && PyErr_Occurred()) {
+                    Py_DECREF(m);
                     return NULL;
                 }
                 if (str_path != NULL) {
                     wcs_path = PyUnicode_AsWideCharString(str_path, NULL);
                     if (wcs_path == NULL) {
+                        Py_DECREF(m);
                         return NULL;
                     }
                     SetEnvironmentVariableW(L"TCL_LIBRARY", wcs_path);