Python Permutations and Combinations

In this Python tutorial, we will go over how to find permutations and combinations, combinations with replacement, and all possible combinations.

[BagofSunChips]

Really helped with my Python 2 class project, thanks for your help.

[nicklansbury]

Hi Ryan. I just stumbled across your channel. Nice tutorial series here. Very clear. Thanks. Subbed.

[zert]

Hi Ryan, Thank You very much for the tutorial.
I have just one question:

how do I create permutations of 3,
BUT WITHOUT repetitions?

example:
123 would normally give permutations of
(132, 213, 231 321, 312)

So, how do I then only have permutations of ONLY 123???
(since the rest are sort of REPEATS of the same thing)




thank you in Advance for your answer.



Tafara

[khalilj.]

Hello!

Thanks a lot for this useful information.
I wonder if I need to add some restrictions to the #Combinations part.
How to code the algorithm only printing out combinations with a total sum between 59-190 for example?
I modified the code for my special use as shown below:

#Python Combinations

import itertools

combin = itertools.combination(range(1, 36), 7)

#combin = itertools.combinaions([1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35], 7)

count_combin = []
for i in combin:
count combin.append(i)
# print all combinations


# print total number of combinations
print('number of combinations', len(count_combin))

[SMajid--SMajid]

Since you are online, a quick question: this won't work for dictionaries, right?

[toggrimegga]

ihi. i would like to have it with repetition

[DrIlyas-sqpz]

This kind of error is appearing. what is it sir. Thanks
<itertools.permutations at 0xc1adba0>