Contents

def is_iterable(thing):
    try:
        iter(thing)
    except TypeError:
        return False
    else:
        return True


def flatten(iterable):
    """Flatten a list of lists."""
    flattened = []
    for item in iterable:
        if is_iterable(item) and not isinstance(item, (str, bytes)):
            flattened += flatten(item)
        elif item is not None:
            flattened.append(item)
    return flattened

Version data entries

387 entries across 387 versions & 1 rubygems

Version	Path
trackler-2.2.1.139	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.138	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.137	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.136	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.135	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.134	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.133	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.132	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.131	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.130	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.129	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.128	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.127	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.126	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.125	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.124	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.123	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.122	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.121	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.120	tracks/python/exercises/flatten-array/example.py