commit 046da1669598d6112d0a6fb056081f3eb5a4d4e7
author Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Fri Jun 15 15:26:29 2018 -0700
committer GitHub <noreply@github.com> Fri Jun 15 15:26:29 2018 -0700
tree 4ee813adb3b7e6f80b509bde2ebb9211103675f5
parent ba67b4f7cb87035e24098f52cf9711b9e793e033

bpo-33824, bpo-32030: Fix pymain_read_conf() (GH-7712)


Fix "LC_ALL=C python3.7 -V": reset properly the command line parser
when the encoding changes after reading the Python configuration.

Fix pymain_read_conf(): use memset(0) to reset properly cmdline.
(cherry picked from commit 6c5a4b315664f21bffc36ff6987fb4c4d1590897)

Co-authored-by: Victor Stinner <vstinner@redhat.com>

Modules/main.c

diff --git a/Modules/main.c b/Modules/main.c
index 286ad41..3809fa4 100644
--- a/Modules/main.c
+++ b/Modules/main.c
@@ -2015,6 +2015,7 @@
         Py_IgnoreEnvironmentFlag = init_ignore_env;
         _PyCoreConfig_Clear(&pymain->config);
         pymain_clear_cmdline(pymain, cmdline);
+        memset(cmdline, 0, sizeof(*cmdline));
         pymain_get_global_config(pymain, cmdline);
 
         /* The encoding changed: read again the configuration