def is_installed(package_name):
    return package_name.lower() in (d.key.lower() for d in WorkingSet())
@Test: Generate a 4 group IPv4 address with good prefix
dataset/ETHPy150Open paylogic/pip-accel/pip_accel/utils.py/is_installed--crossover with--dataset/ETHPy150Open omaciel/fauxfactory/tests/test_ipaddress.py/TestIpaddr.test_gen_ipv4_7