def coin_symbol_from_mkey(mkey):
    return FIRST4_MKEY_CS_MAPPINGS_UPPER.get(mkey[:4].upper())

# Addresses #

# Copied 2014-09-24 from http://rosettacode.org/wiki/Bitcoin/address_validation#Python
Take a master private or public extended key in standard format
dataset/ETHPy150Open blockcypher/blockcypher-python/blockcypher/utils.py/coin_symbol_from_mkey