Getting a combination using a function

-1

I got a problem here. The question is that assuming Z=3, and Y= 4, how do I create a function that returns me a random combination of maybe zzzyyyy or zzyyyzy or any permutation? I did the code below but im quite confused.

def combinations(iterable,r):

   pool= tuple(iterable)

   n= len(pool)

   for indices in permutations(range(n), r):

       if sorted(indices)==listed(indices):

           yield tuple(pool[i] for i in indices)

       return



print(combinations('AAABBB', 4))

but i got only

output: <generator object combinations at 0x103f81518>

Thanks!!

edited Nov 22 '18 at 7:15

Andreas

1,8312918

asked Nov 22 '18 at 6:25

Jonathan

467

yeap thanks. i just edited the question

– Jonathan
Nov 22 '18 at 6:35

i really did try and im new to this. how am i supposed to convince you that i did try.. ah forget it im not here to argue with u

– Jonathan
Nov 22 '18 at 6:45

edited and still cant figure it out

– Jonathan
Nov 22 '18 at 7:03

well honestly i have no clue what you're saying cos its already properly spaced. can just give me a mark down.

– Jonathan
Nov 22 '18 at 7:08

add a comment |

-1

def combinations(iterable,r):

   pool= tuple(iterable)

   n= len(pool)

   for indices in permutations(range(n), r):

       if sorted(indices)==listed(indices):

           yield tuple(pool[i] for i in indices)

       return



print(combinations('AAABBB', 4))

but i got only

output: <generator object combinations at 0x103f81518>

Thanks!!

edited Nov 22 '18 at 7:15

Andreas

1,8312918

asked Nov 22 '18 at 6:25

Jonathan

467

yeap thanks. i just edited the question

– Jonathan
Nov 22 '18 at 6:35

i really did try and im new to this. how am i supposed to convince you that i did try.. ah forget it im not here to argue with u

– Jonathan
Nov 22 '18 at 6:45

edited and still cant figure it out

– Jonathan
Nov 22 '18 at 7:03

well honestly i have no clue what you're saying cos its already properly spaced. can just give me a mark down.

– Jonathan
Nov 22 '18 at 7:08

add a comment |

-1

def combinations(iterable,r):

   pool= tuple(iterable)

   n= len(pool)

   for indices in permutations(range(n), r):

       if sorted(indices)==listed(indices):

           yield tuple(pool[i] for i in indices)

       return



print(combinations('AAABBB', 4))

but i got only

output: <generator object combinations at 0x103f81518>

Thanks!!

edited Nov 22 '18 at 7:15

Andreas

1,8312918

asked Nov 22 '18 at 6:25

Jonathan

467

def combinations(iterable,r):

   pool= tuple(iterable)

   n= len(pool)

   for indices in permutations(range(n), r):

       if sorted(indices)==listed(indices):

           yield tuple(pool[i] for i in indices)

       return



print(combinations('AAABBB', 4))

but i got only

output: <generator object combinations at 0x103f81518>

Thanks!!

function

edited Nov 22 '18 at 7:15

Andreas

1,8312918

asked Nov 22 '18 at 6:25

Jonathan

467

edited Nov 22 '18 at 7:15

Andreas

1,8312918

asked Nov 22 '18 at 6:25

Jonathan

467

edited Nov 22 '18 at 7:15

Andreas

1,8312918

edited Nov 22 '18 at 7:15

Andreas

1,8312918

edited Nov 22 '18 at 7:15

Andreas

1,8312918

asked Nov 22 '18 at 6:25

Jonathan

467

asked Nov 22 '18 at 6:25

Jonathan

467

asked Nov 22 '18 at 6:25

Jonathan

467

yeap thanks. i just edited the question

– Jonathan
Nov 22 '18 at 6:35

i really did try and im new to this. how am i supposed to convince you that i did try.. ah forget it im not here to argue with u

– Jonathan
Nov 22 '18 at 6:45

edited and still cant figure it out

– Jonathan
Nov 22 '18 at 7:03

well honestly i have no clue what you're saying cos its already properly spaced. can just give me a mark down.

– Jonathan
Nov 22 '18 at 7:08

add a comment |

yeap thanks. i just edited the question

– Jonathan
Nov 22 '18 at 6:35

i really did try and im new to this. how am i supposed to convince you that i did try.. ah forget it im not here to argue with u

– Jonathan
Nov 22 '18 at 6:45

edited and still cant figure it out

– Jonathan
Nov 22 '18 at 7:03

well honestly i have no clue what you're saying cos its already properly spaced. can just give me a mark down.

– Jonathan
Nov 22 '18 at 7:08

yeap thanks. i just edited the question

– Jonathan
Nov 22 '18 at 6:35

i really did try and im new to this. how am i supposed to convince you that i did try.. ah forget it im not here to argue with u

– Jonathan
Nov 22 '18 at 6:45

edited and still cant figure it out

– Jonathan
Nov 22 '18 at 7:03

well honestly i have no clue what you're saying cos its already properly spaced. can just give me a mark down.

– Jonathan
Nov 22 '18 at 7:08

add a comment |

1 Answer
1

active

oldest

votes

You can simply use the permutations function in itertools. It will generate all possible permutation of the given list (or string). Then use randrange in random to generate the random number in the range of 0 to the list length, to select any random element in the list.

from itertools import permutations

import random



def build_string(z_num, y_num):

    string = ''

    string += 'Z'*z_num

    string += 'Y'*y_num

    return string



string = build_string(3, 4)

perms = [''.join(p) for p in permutations('ZZZYYYY')]

print(perms[random.randrange(0, len(perms))]) # print random permutation

answered Nov 22 '18 at 7:20

Andreas

1,8312918

Thanks Andres. Apologies for losing my temper. Am still very new to this and am trying to figure out a lot of things. It's crazy difficult

– Jonathan
Nov 22 '18 at 7:23

I would suggest you to start from simpler task or project. Also, to get better understanding regarding python capabilities, so that you would know what to search in Google or in here. I found that usually most questions has already been answered in one way or another in StackOverflow

– Andreas
Nov 22 '18 at 7:24

thanks. how long did it take you to learn python?

– Jonathan
Nov 22 '18 at 7:27

This is not a suitable place for that, we can move to chat.stackoverflow.com if you have other unrelated questions.

– Andreas
Nov 22 '18 at 7:29

add a comment |

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1 Answer
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active

oldest

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1 Answer
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active

oldest

votes

from itertools import permutations

import random



def build_string(z_num, y_num):

    string = ''

    string += 'Z'*z_num

    string += 'Y'*y_num

    return string



string = build_string(3, 4)

perms = [''.join(p) for p in permutations('ZZZYYYY')]

print(perms[random.randrange(0, len(perms))]) # print random permutation

answered Nov 22 '18 at 7:20

Andreas

1,8312918

Thanks Andres. Apologies for losing my temper. Am still very new to this and am trying to figure out a lot of things. It's crazy difficult

– Jonathan
Nov 22 '18 at 7:23

I would suggest you to start from simpler task or project. Also, to get better understanding regarding python capabilities, so that you would know what to search in Google or in here. I found that usually most questions has already been answered in one way or another in StackOverflow

– Andreas
Nov 22 '18 at 7:24

thanks. how long did it take you to learn python?

– Jonathan
Nov 22 '18 at 7:27

This is not a suitable place for that, we can move to chat.stackoverflow.com if you have other unrelated questions.

– Andreas
Nov 22 '18 at 7:29

add a comment |

from itertools import permutations

import random



def build_string(z_num, y_num):

    string = ''

    string += 'Z'*z_num

    string += 'Y'*y_num

    return string



string = build_string(3, 4)

perms = [''.join(p) for p in permutations('ZZZYYYY')]

print(perms[random.randrange(0, len(perms))]) # print random permutation

answered Nov 22 '18 at 7:20

Andreas

1,8312918

Thanks Andres. Apologies for losing my temper. Am still very new to this and am trying to figure out a lot of things. It's crazy difficult

– Jonathan
Nov 22 '18 at 7:23

I would suggest you to start from simpler task or project. Also, to get better understanding regarding python capabilities, so that you would know what to search in Google or in here. I found that usually most questions has already been answered in one way or another in StackOverflow

– Andreas
Nov 22 '18 at 7:24

thanks. how long did it take you to learn python?

– Jonathan
Nov 22 '18 at 7:27

This is not a suitable place for that, we can move to chat.stackoverflow.com if you have other unrelated questions.

– Andreas
Nov 22 '18 at 7:29

add a comment |

from itertools import permutations

import random



def build_string(z_num, y_num):

    string = ''

    string += 'Z'*z_num

    string += 'Y'*y_num

    return string



string = build_string(3, 4)

perms = [''.join(p) for p in permutations('ZZZYYYY')]

print(perms[random.randrange(0, len(perms))]) # print random permutation

answered Nov 22 '18 at 7:20

Andreas

1,8312918

from itertools import permutations

import random



def build_string(z_num, y_num):

    string = ''

    string += 'Z'*z_num

    string += 'Y'*y_num

    return string



string = build_string(3, 4)

perms = [''.join(p) for p in permutations('ZZZYYYY')]

print(perms[random.randrange(0, len(perms))]) # print random permutation

answered Nov 22 '18 at 7:20

Andreas

1,8312918

answered Nov 22 '18 at 7:20

Andreas

1,8312918

answered Nov 22 '18 at 7:20

Andreas

1,8312918

answered Nov 22 '18 at 7:20

Andreas

1,8312918

Thanks Andres. Apologies for losing my temper. Am still very new to this and am trying to figure out a lot of things. It's crazy difficult

– Jonathan
Nov 22 '18 at 7:23

I would suggest you to start from simpler task or project. Also, to get better understanding regarding python capabilities, so that you would know what to search in Google or in here. I found that usually most questions has already been answered in one way or another in StackOverflow

– Andreas
Nov 22 '18 at 7:24

thanks. how long did it take you to learn python?

– Jonathan
Nov 22 '18 at 7:27

This is not a suitable place for that, we can move to chat.stackoverflow.com if you have other unrelated questions.

– Andreas
Nov 22 '18 at 7:29

add a comment |

Thanks Andres. Apologies for losing my temper. Am still very new to this and am trying to figure out a lot of things. It's crazy difficult

– Jonathan
Nov 22 '18 at 7:23

I would suggest you to start from simpler task or project. Also, to get better understanding regarding python capabilities, so that you would know what to search in Google or in here. I found that usually most questions has already been answered in one way or another in StackOverflow

– Andreas
Nov 22 '18 at 7:24

thanks. how long did it take you to learn python?

– Jonathan
Nov 22 '18 at 7:27

This is not a suitable place for that, we can move to chat.stackoverflow.com if you have other unrelated questions.

– Andreas
Nov 22 '18 at 7:29

Thanks Andres. Apologies for losing my temper. Am still very new to this and am trying to figure out a lot of things. It's crazy difficult

– Jonathan
Nov 22 '18 at 7:23

I would suggest you to start from simpler task or project. Also, to get better understanding regarding python capabilities, so that you would know what to search in Google or in here. I found that usually most questions has already been answered in one way or another in StackOverflow

– Andreas
Nov 22 '18 at 7:24

thanks. how long did it take you to learn python?

– Jonathan
Nov 22 '18 at 7:27

This is not a suitable place for that, we can move to chat.stackoverflow.com if you have other unrelated questions.

– Andreas
Nov 22 '18 at 7:29

add a comment |

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