Python Program - Parse a String to a Float or Int

here's a Python program that parses a string to a float or int:

# Define a string containing a number
num_string = "123.45"

# Parse the string to a float using the float() function
float_num = float(num_string)

# Parse the string to an int using the int() function
int_num = int(float_num)

# Print the parsed numbers
print("Float:", float_num)
print("Int:", int_num)

In this program, we define a string called num_string containing a number ("123.45").

To parse the string to a float, we can use the float() function, which takes a string as its argument and returns a float.

We assign the result of float(num_string) to a variable called float_num.

To parse the float to an int, we can use the int() function, which takes a number as its argument and returns an int.

We assign the result of int(float_num) to a variable called int_num.

Finally, we can print the parsed numbers using the print() function and string formatting.

If we run this program, the output will be:

Float: 123.45
Int: 123

Note that the float() function will raise a ValueError exception if called with a string that cannot be parsed as a float. Similarly, the int() function will raise a ValueError exception if called with a non-integer or a float that cannot be represented as an int. If you need more control over the parsing process, you can use the decimal module, which provides classes for working with decimal numbers.