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-2.2.1.180	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.179	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.178	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.177	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.176	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.175	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.174	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.173	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.172	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.171	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.170	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.169	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.167	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.166	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.165	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.164	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.163	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.162	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.161	tracks/python/exercises/flatten-array/example.py
trackler-2.2.1.160	tracks/python/exercises/flatten-array/example.py