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So I'm pretty stumped on how to convert a string into an int using the try/except function. Does anyone know a simple function on how to do this? I feel like I'm still a little hazy on string and ints. I'm pretty confident that ints are related to numbers. Strings...not so much.
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To convert, or cast, a string to an integer in Python, you use the int() built-in function. The function takes in as a parameter the initial string you want to convert, and returns the integer equivalent of the value you passed. The general syntax looks something like this: int("str") .
To check if a string is integer in Python, use the isdigit() method. The string isdigit() is a built-in Python method that checks whether the given string consists of only digits. In addition, it checks if the characters present in the string are digits or not.
Python also has a built-in function to convert floats to integers: int() . In this case, 390.8 will be converted to 390 . When converting floats to integers with the int() function, Python cuts off the decimal and remaining numbers of a float to create an integer.
It is important to be specific about what exception you're trying to catch when using a try/except block.
string = "abcd" try: string_int = int(string) print(string_int) except ValueError: # Handle the exception print('Please enter an integer') Try/Excepts are powerful because if something can fail in a number of different ways, you can specify how you want the program to react in each fail case.
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