trezor-firmware/core/src/apps/common/coins.py

from apps.common.coininfo import COINS


def by_shortcut(shortcut):
    for c in COINS:
        if c.coin_shortcut == shortcut:
            return c
    raise ValueError('Unknown coin shortcut "%s"' % shortcut)


def by_name(name):
    for c in COINS:
        if c.coin_name == name:
            return c
    raise ValueError('Unknown coin name "%s"' % name)


def by_slip44(slip44):
    for c in COINS:
        if c.slip44 == slip44:
            return c
    raise ValueError("Unknown coin slip44 index %d" % slip44)