how to find the location of a character in a string in python
>>> myString = 'Position of a character'
>>> myString.find('s')
2
>>> myString.find('x')
-1how to find the location of a character in a string in python
>>> myString = 'Position of a character'
>>> myString.find('s')
2
>>> myString.find('x')
-1python string indexing
str = 'codegrepper'
# str[start:end:step]
#by default: start = 0, end = len(str), step = 1
print(str[:]) #codegrepper
print(str[::]) #codegrepper
print(str[5:]) #repper
print(str[:8]) #codegrep
print(str[::2]) #cdgepr
print(str[2:8]) #degrep
print(str[2:8:2]) #dge
#step < 0 : reverse
print(str[::-1]) #reppergedoc
print(str[::-3]) #rpgo
# str[start:end:-1] means start from the end, go backward and stop at start
print(str[8:3:-1]) #ppergpython string index of
sentence = 'Python programming is fun.'
result = sentence.index('is fun')
print("Substring 'is fun':", result)
result = sentence.index('Java')
print("Substring 'Java':", result)how to find the indexes of a substring in a string in python
import re
# matches_position_start will be a list of starting index positions
matches_start = re.finditer(word.lower(), string.lower())
matches_position_start = [match.start() for match in matches_start]
# matches_position_end will be a list of ending index positions
matches_end = re.finditer(word.lower(), string.lower())
matches_position_end = [match.end() for match in matches_end]Copyright © 2021 Codeinu
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