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Python in Keyword
The in keyword in Python is used when we need either:
- to check whether a particular value is available in a sequence such as list, tuple etc. or not
- or to traverse a sequence in for loop
For example:
x = [12, 23, 65, 87] if 23 in x: print("23 is available in the list 'x'") else: print("23 is not available in the list 'x'") print("\nAll elements of list 'x':") for e in x: print(e)
The snapshot given below shows the sample output produced by above program, demonstrating the in keyword in Python:
Note - Python is a case-sensitive language, therefore keep both the letter of in in small letter.
Python in Keyword Example
Here is an example of in keyword in Python:
x = (134, 54, 65, 67, 0, 23) print("Enter a Number: ", end="") num = int(input()) if num in x: print("\nThe number is available") else: print("\nThe number is not available") print("\nEnter a String: ", end="") str = input() print("\nCharacters of given string are:") for c in str: print(c)
Sample run with user input 66 as number, Python as string is shown in the snapshot given below:
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