flati
Flatten nested iterable object (Pure-Python implementation)
Installation
$ pip install flati
Usage
import flati
iterable = [(1, 2, 3), (4, (5, 6))]
list(flati.flatten(iterable))
# => [1, 2, 3, 4, 5, 6]
# flati.flatten() returns a generator
import types
isinstance(flati.flatten(iterable), types.GeneratorType)
# => True
# If you want to avoid flattening specific type, then use "ignore" parameter
iterable = [('abc'), ('def', ('g', 'hi'))]
list(flati.flatten(iterable, ignore=str))
# => ['abc', 'def', 'g', 'hi']Tips
If you want to flatten numpy.ndarray, I recommend using following methods:
- numpy.ravel()
- ndarray.reshape(-1)
- ndarray.flatten() # This method is a bit slow because it makes a copy
