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Agathe Le Corre
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Asked: 2022-04-17T19:02:23+00:00 In:

“If Substring Not In String Python” Samples

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I am learning about “if substring not in string python”, below is a code I wrote

fullstring = "Stestdata"
substring = "test"
​
if fullstring.find(substring) != -1:
    print "substring in string python!"
else:
    print "substring not in string python!"

Anyone have a better idea? Let’s discuss this together

♦ Suggestions of ITtutoria Team
Ideas for “If Substring Not In String Python”: In Python, the find(substring) can be used to check whether a string contains a substring or not. The argument is a string.
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6 Answers

  1. There is a simple way

    >>> string = "Hello World"
>>> # Check Sub-String in String
>>> "World" in string
True
>>> # Check Sub-String not in String
>>> "World" not in string
False
    • 24
  2. fullstring = "StackAbuse"
substring = "tack"
​
if fullstring.find(substring) != -1:
    print "Found!"
else:
    print "Not found!"
​

    Have you ever tried this solution

    • 23
  3. def find_string(string,sub_string):
    return string.find(sub_string)
#.find() also accounts for multiple occurence of the substring in the given string

    I’ve seen this on another forum and this is what help to resolve the problem

    • 18

  4. Maybe not the best solution, but it works.

    def is_value_in_string(value: str, the_string: str):
    return value in the_string.lower()
    • 17

  5. In case you expect more than one maximum this will work

    str = '£35,000 per year'
# check for '£' character in the string
'£' not in str
# >> False
'£' in str
# >> True
    • 12
  6. >>> str = "Messi is the best soccer player"
>>> "soccer" in str
True
>>> "football" in str
False

    Have you ever tried this solution

    • 11

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