Python Basic Functions

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What is the purpose of the input() function?

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The input() function is used to take user input from the console. It prompts the user for a value, which is then returned as a string.

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How do you use the input() function in Python?

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user_input = input("Enter something: ") print(user_input) This code will display the prompt "Enter something: ", wait for the user to type something, and then store the input as a string in the variable user_input.

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What is important to remember about the value returned by input()?

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The value returned by input() is always a string, even if the user types numbers. To use the input as an integer or other types, you need to convert it (e.g., using int()).

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What is the purpose of the str() function?

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The str() function is used to convert an object into a string representation. This is useful for ensuring a variable is treated as a string or when concatenating non-string values with strings.

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How do you use the str() function in Python?

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number = 123 number_str = str(number) print(number_str) # Output: '123' Here, str() converts the integer 123 into a string '123'.

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What types of data can be converted using str()?

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You can use str() to convert many different data types to strings, such as numbers, lists, or even objects.

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What is the purpose of the int() function?

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The int() function is used to convert a value into an integer. If the value is already an integer, it remains unchanged. If the value is a string that represents a number, it will be converted to an integer.

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How do you use the int() function in Python?

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str_number = "123" number = int(str_number) print(number) # Output: 123 In this case, int() converts the string "123" into the integer 123.

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What happens if you try to convert a string that doesn't represent a valid integer using int()?

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If you try to convert a string that doesn't represent a valid integer (like "abc"), Python will throw a ValueError.