The Python float() function is a built-in Python function that converts the given value (number or string) into a floating-point number and returns the result. If the float() method fails to convert string to float then it raises the ValueError.
float(Parameter value)
A number or a string that can be converted into a floating-point number.
Parameter is optional. If there is no parameter then it returns 0.0.
Note: If the value is a string then it should contain a decimal point and the valid argument should contain some numeric value.
The float() function returns a floating-point value equivalent to the number passed as is or in the form of a string.
This method raises exceptions when it receives invalid parameter value.
ValueError – Python ValueError is raised when a Python function receives an argument of the correct type but a wrong value.
TypeError – Python TypeError is raised when a Python function receives an argument is not of the expected type
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