def quote_plus(s, safe=''):
    if ' ' in s:
        s = quote(s, safe + ' ')
        return s.replace(' ', '+')
    return quote(s, safe)
Test parsing of default values.
dataset/ETHPy150Open kleientertainment/ds_mod_tools/pkg/win32/Python27/Lib/urllib.py/quote_plus--crossover with--dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/test/test_usage.py/TypedTestCase.test_defaultValues