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import subprocess
"""Helper functions, decorators, ... for working with locales"""
def get_avail_locales():
try:
return {loc.decode(errors="replace").strip() for loc in subprocess.check_output(["locale", "-a"]).split()}
except FileNotFoundError:
return {"C"}
def missing_locales(required, available):
canon_locales = {loc.replace("UTF-8", "utf8") for loc in required}
return canon_locales - set(available)
def requires_locales(locales):
"""A decorator factory to skip tests that require unavailable locales
:param set locales: set of required locales
**Requires the test to have the set of available locales defined as its
``avail_locales`` attribute.**
"""
def decorator(test_method):
def decorated(test, *args):
missing = missing_locales(locales, test.avail_locales)
if missing:
test.skipTest("requires missing locales: %s" % missing)
else:
return test_method(test, *args)
return decorated
return decorator
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