String index

Python 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)

-1

Source: programiz.com

String index

  s = 'Hello'
  len(s)   ## 5
  ## Chars are numbered starting with 0
  s[0]     ## 'H'
  s[1]     ## 'e'
  s[4]     ## 'o'  -- last char is at length-1
  s[5]     ## ERROR, index out of bounds

-1

Source: codingbat.com

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