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Use PyConfig_InitPythonConfig instead of PyConfig_InitIsolatedConfig #4473

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Merged
merged 2 commits into from
Feb 1, 2023
Merged

Use PyConfig_InitPythonConfig instead of PyConfig_InitIsolatedConfig #4473

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5432bf9
Use PyConfig_InitPythonConfig instead of PyConfig_InitIsolatedConfig
Jan 27, 2023
5574187
add unit test for default python configuration
Jan 28, 2023
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7 changes: 4 additions & 3 deletions include/pybind11/embed.h
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Original file line number Diff line number Diff line change
Expand Up @@ -198,9 +198,10 @@ inline void initialize_interpreter(bool init_signal_handlers = true,
init_signal_handlers, argc, argv, add_program_dir_to_path);
#else
PyConfig config;
PyConfig_InitIsolatedConfig(&config);
config.isolated = 0;
config.use_environment = 1;
PyConfig_InitPythonConfig(&config);
// See PR #4473 for background
config.parse_argv = 0;

config.install_signal_handlers = init_signal_handlers ? 1 : 0;
initialize_interpreter(&config, argc, argv, add_program_dir_to_path);
#endif
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22 changes: 21 additions & 1 deletion tests/test_embed/test_interpreter.cpp
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Expand Up @@ -184,7 +184,7 @@ TEST_CASE("Custom PyConfig") {
py::initialize_interpreter();
}

TEST_CASE("Custom PyConfig with argv") {
TEST_CASE("scoped_interpreter with PyConfig_InitIsolatedConfig and argv") {
py::finalize_interpreter();
{
PyConfig config;
Expand All @@ -199,6 +199,26 @@ TEST_CASE("Custom PyConfig with argv") {
}
py::initialize_interpreter();
}

TEST_CASE("scoped_interpreter with PyConfig_InitPythonConfig and argv") {
py::finalize_interpreter();
{
PyConfig config;
PyConfig_InitPythonConfig(&config);

// `initialize_interpreter() overrides the default value for config.parse_argv (`1`) by
// changing it to `0`. This test exercises `scoped_interpreter` with the default config.
char *argv[] = {strdup("a.out"), strdup("arg1")};
py::scoped_interpreter argv_scope(&config, 2, argv);
std::free(argv[0]);
std::free(argv[1]);
auto module = py::module::import("test_interpreter");
auto py_widget = module.attr("DerivedWidget")("The question");
const auto &cpp_widget = py_widget.cast<const Widget &>();
REQUIRE(cpp_widget.argv0() == "arg1");
}
py::initialize_interpreter();
}
#endif

TEST_CASE("Add program dir to path pre-PyConfig") {
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