find all possible combinations of letters in a string in python [duplicate]

by

Your example input/output suggests that you are looking for a power set. You could generate a power set for a string using itertools module in Python:

from itertools import chain, combinations

def powerset(iterable):
    "powerset([1,2,3]) --> () (1,) (2,) (3,) (1,2) (1,3) (2,3) (1,2,3)"
    s = list(iterable)
    return chain.from_iterable(combinations(s, r) for r in range(len(s)+1))

print(list(map(''.join, powerset('abcd'))))

Output

['',
 'a',
 'b',
 'c',
 'd',
 'ab',
 'ac',
 'ad',
 'bc',
 'bd',
 'cd',
 'abc',
 'abd',
 'acd',
 'bcd',
 'abcd']

Note: the output includes the empty string.

More Related Contents:

  1. Does Python have a string ‘contains’ substring method?
  2. How do I get a substring of a string in Python?
  3. Why does substring slicing with index out of range work?
  4. How to extract the substring between two markers?
  5. How to get a string after a specific substring?
  6. Find the nth occurrence of substring in a string
  7. How To Get All The Contiguous Substrings Of A String In Python?
  8. Replace nth occurrence of substring in string
  9. Find substring in string but only if whole words?
  10. Python: How to check a string for substrings from a list? [duplicate]
  11. Python: Find a substring in a string and returning the index of the substring
  12. How do I check if a given Python string is a substring of another one? [duplicate]
  13. ‘str’ object is not callable Python
  14. Unexpected returned variable in Python [duplicate]
  15. How to check if type of a variable is string?
  16. Iterating each character in a string using Python
  17. How to check if a string only contains letters?
  18. str.startswith with a list of strings to test for
  19. Remove non-ASCII characters from pandas column
  20. How to split strings inside a list by whitespace characters
  21. Difference between using commas, concatenation, and string formatters in Python
  22. Mutable strings in Python
  23. Check presence of vowels in a string
  24. Does R have function startswith or endswith like python? [closed]
  25. Remove Sub String by using Python
  26. How to Print “Pretty” String Output in Python
  27. Use a string to call function in Python [duplicate]
  28. Why are str.count(”) and len(str) giving different outputs when used on an empty string?
  29. What is a “bytestring” (the `bytes` data type) in Python?
  30. Python- how to verify if a string ends with specific string?

Leave a Comment