flattenonly

emlib.iterlib.flattenonly(l, types)

Flatten only if subsequences are of type ‘type’

Parameters:

• l – a seq

• type – a type or a tuple of types, as passed to isinstance

Example

flatten only list items, pass tuples untouched

>>> l = [1, [2, 3], (4, 5)]
>>> list(flattenonyl(l, list))
[1, 2, 3, (4, 5)]