# this is a string
a = "12345"
# use int() to convert to integer
b = int(a)
# if string cannot be converted to integer,
a = "This cannot be converted to an integer"
b = int(a) # the interpreter raises ValueError
# here is the string
stiring = 'str'
# here is the conversion
conv = int(string)
# here is the type of the conv or else if its an integer or not
type(conv)
#Output
# <class 'int'>
# This kind of conversion of types is known as type casting
# Type of variable can be determined using this function type(variable)
>>> string = '123'
>>> type(string) # Getting type of variable string
<class 'str'>
>>> integer = int(string) # Converting str to int
>>> type(integer)
<class 'int'>
>>> float_number = float(string) # Converting str to float.
>>> type(float_number)
<class 'float'>
>>> print(string, integer, float_number)
123 123 123.0