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Problem: py.checkio.org/en/mission/between-markers/
My solution:
def between_markers(text: str, begin: str, end: str) -> str:
"""
returns substring between two given markers
"""
# your code here
if begin in text and end in text: # condition 1 & condition 5
# condition 1
if text.index(begin) < text.index(end):
return text[text.index(begin)+len(begin):text.index(end)]
# condition 5
else: return ''
# condition 2
elif (not begin in text) and end in text:
return text[:text.index(end)]
# condition 3
elif (not end in text) and begin in text:
return text[text.index(begin)+len(begin):]
# condition 4
else: return text
if __name__ == '__main__':
print('Example:')
print(between_markers('What is >apple<', '>', '<'))
# These "asserts" are used for self-checking and not for testing
assert between_markers('What is >apple<', '>', '<') == "apple", "One sym"
assert between_markers("<head><title>My new site</title></head>",
"<title>", "</title>") == "My new site", "HTML"
assert between_markers('No[/b] hi', '[b]', '[/b]') == 'No', 'No opened'
assert between_markers('No [b]hi', '[b]', '[/b]') == 'hi', 'No close'
assert between_markers('No hi', '[b]', '[/b]') == 'No hi', 'No markers at all'
assert between_markers('No <hi>', '>', '<') == '', 'Wrong direction'
print('Wow, you are doing pretty good. Time to check it!')
A good solution that I see
def between_markers(text: str, begin: str, end: str) -> str:
start = text.find(begin) + len(begin) if begin in text else None
stop = text.find(end) if end in text else None
return text[start:stop]728x90
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