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Set the locale on app startup. #58

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Merged
mhsmith merged 1 commit into from
Aug 6, 2025
Merged

Set the locale on app startup. #58

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6 changes: 6 additions & 0 deletions {{ cookiecutter.format }}/{{ cookiecutter.class_name }}/main.m
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Original file line number Diff line number Diff line change
Expand Up @@ -38,6 +38,10 @@ int main(int argc, char *argv[]) {
PyObject *systemExit_code;

@autoreleasepool {
// iOS doesn't export an LANG environment variable; that variable is
// needed to set the locale correctly on startup.
setenv("LANG", [[NSString stringWithFormat:@"%@.UTF-8", NSLocale.currentLocale.localeIdentifier] UTF8String], 1);

NSString *resourcePath = [[NSBundle mainBundle] resourcePath];

// Generate an isolated Python configuration.
Expand All @@ -49,6 +53,8 @@ int main(int argc, char *argv[]) {
// Enforce UTF-8 encoding for stderr, stdout, file-system encoding and locale.
// See https://docs.python.org/3/library/os.html#python-utf-8-mode.
preconfig.utf8_mode = 1;
// Ensure the locale is set (isolated interpreters won't by default)
preconfig.configure_locale = 1;
// Don't buffer stdio. We want output to appears in the log immediately
config.buffered_stdio = 0;
// Don't write bytecode; we can't modify the app bundle
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