mirror of
https://github.com/TheAlgorithms/Python.git
synced 2024-10-05 21:29:29 +00:00
00165a5fb2
* Added test cases to join.py * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci --------- Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
55 lines
1.3 KiB
Python
55 lines
1.3 KiB
Python
"""
|
|
Program to join a list of strings with a separator
|
|
"""
|
|
|
|
|
|
def join(separator: str, separated: list[str]) -> str:
|
|
"""
|
|
Joins a list of strings using a separator
|
|
and returns the result.
|
|
|
|
:param separator: Separator to be used
|
|
for joining the strings.
|
|
:param separated: List of strings to be joined.
|
|
|
|
:return: Joined string with the specified separator.
|
|
|
|
Examples:
|
|
|
|
>>> join("", ["a", "b", "c", "d"])
|
|
'abcd'
|
|
>>> join("#", ["a", "b", "c", "d"])
|
|
'a#b#c#d'
|
|
>>> join("#", "a")
|
|
'a'
|
|
>>> join(" ", ["You", "are", "amazing!"])
|
|
'You are amazing!'
|
|
|
|
This example should raise an
|
|
exception for non-string elements:
|
|
>>> join("#", ["a", "b", "c", 1])
|
|
Traceback (most recent call last):
|
|
...
|
|
Exception: join() accepts only strings
|
|
|
|
Additional test case with a different separator:
|
|
>>> join("-", ["apple", "banana", "cherry"])
|
|
'apple-banana-cherry'
|
|
"""
|
|
|
|
joined = ""
|
|
for word_or_phrase in separated:
|
|
if not isinstance(word_or_phrase, str):
|
|
raise Exception("join() accepts only strings")
|
|
joined += word_or_phrase + separator
|
|
|
|
# Remove the trailing separator
|
|
# by stripping it from the result
|
|
return joined.strip(separator)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
from doctest import testmod
|
|
|
|
testmod()
|