try text.index() clear solution for Between Markers by martin.pilka - python coding challenges

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try text.index() solution in Clear category for Between Markers by martin.pilka

def between_markers(text: str, begin: str, end: str) -> str:
    # Find i_begin
    try:
        i_begin = text.index(begin) + len(begin)
    except ValueError:
        i_begin = None

    # Find i_end
    try:
        i_end = text.index(end)
    except ValueError:
        i_end = None

    # Return value between markers
    return text[i_begin:i_end]

Dec. 26, 2018

Comments:

RezaCoder_4afc97ca9ab94b378542 on April 13, 2020, 5:06 p.m.
pretty one!

spitfire_ch on July 6, 2021, 7:05 p.m.
Very pythonic solution, nice!

Klaasie on July 12, 2021, 5:41 a.m.
Nice use of try: except:. It saves a lot of checking for possible situations

mu_py on Sept. 17, 2022, 6:23 p.m.
I like the use of None/None for the edge cases instead of 0/len(text).

Dhliu8002 on July 7, 2023, 12:32 p.m.
I literally did the same thing

a8696tk on Feb. 27, 2024, 11:46 a.m.
Try exceptions should be treated with great care and not used when they can be replaced. Because they are very resource intensive. This code avoids the use of try-except blocks and checks for starting and ending markers in the text, making it more efficient. def betweenmarkers(text: str, begin: str, end: str) -> str: ibegin = text.find(begin) + len(begin) if begin in text else 0 iend = text.find(end) if end in text else len(text) return text[ibegin:i_end]

Strings Theory

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