This python tutorial helps to convert a string into a number. We can convert string str to an integer int and a floating-point number float with int() and float().
We’ll cover the following topics in this python article:
- Convert a string to an integer using int() method
- Convert a string to a floating point number using float() method
- Convert a string of binary, octal, and hexadecimal using int() method
- Convert a string of exponential string to number using float() method
Convert a String to an Integer using int()
The int() method can be used to converts a string of numbers to an integer int.
print(int('12'))
print(type(int('12')))Output:
12
Convert a String to an float number using float()
The float() method can be used to converts a string of numbers to a floating-point number.
print(float('12.45'))
print(type(float('12.45')))Output:
12.45
Convert a Binary, Octal to an float number using float()
The int() method can be used to converts a string binary, octal, and hexadecimal into integre, we need to pass second argument as a base number.
Output:
4 64 256
Convert an exponential notation number using float()
The float() method can be used to convert an exponential string into a float number.
print(float('1.13e-4'))
Output:
0.000113