bpo-36301: _PyCoreConfig_Read() ensures that argv is not empty (GH-12347)
If argv is empty, add an empty string.
diff --git a/Lib/test/test_embed.py b/Lib/test/test_embed.py
index 952bc32..374346e 100644
--- a/Lib/test/test_embed.py
+++ b/Lib/test/test_embed.py
@@ -292,7 +292,7 @@
'pycache_prefix': None,
'program_name': './_testembed',
- 'argv': [],
+ 'argv': [""],
'program': None,
'xoptions': [],
diff --git a/Python/coreconfig.c b/Python/coreconfig.c
index 15107fa..0827376 100644
--- a/Python/coreconfig.c
+++ b/Python/coreconfig.c
@@ -1464,6 +1464,13 @@
return err;
}
+ if (config->argv.length < 1) {
+ /* Ensure at least one (empty) argument is seen */
+ if (_PyWstrList_Append(&config->argv, L"") < 0) {
+ return _Py_INIT_NO_MEMORY();
+ }
+ }
+
assert(config->preconfig.use_environment >= 0);
assert(config->filesystem_encoding != NULL);
assert(config->filesystem_errors != NULL);