itertools.tee

Describing itertools.tee(itr, n=2)

• The takewhile function is used to repeat an iterable itr an n amount of times
• This iterable is based on the itr parameter
• This number of times is based on the n parameter
• The n parameter is optional and defaults to $2$
• tee returns an iterator of n iterators each representing our iterable itr

Illustrating the tee Function

>>> from itertools import tee
>>> nums = [1,2,3]

>>> for elem in tee(nums,3): print(elem)
<itertools._tee object at 0x10b157148>
<itertools._tee object at 0x10b117988>
<itertools._tee object at 0x10b117c48>

>>> for elem in tee(nums,3):
...     for i in elem:
...         print(i)
1
2
3
1
2
3
1
2
3

References

• Documentation of the Tee Function from Itertools