def read_keys(base, key):
    try:
        handle = _winreg.OpenKeyEx(base, key)
    except _winreg.error:
        return None
    L = []
    i = 0
    while True:
        try:
            k = _winreg.EnumKey(handle, i)
        except _winreg.error:
            break
        L.append(k)
        i += 1
    return L
Get default value for field.
dataset/ETHPy150Open cournape/Bento/bento/private/_yaku/yaku/tools/mscommon/common.py/read_keys--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/protorpc/protorpc/messages.py/Field.default