Python Typecasting
Python Implicit Casting
When any language compiler/interpreter automatically converts objects of one type into another, it is called automatic or implicit casting. Python is a strongly typed language. It doesn't allow automatic type conversion between unrelated data types. For example, a string cannot be converted to any number type. However, an integer can be cast into a float. Other languages such as JavaScript is a weakly typed language, where an integer is coerced into a string for concatenation.
Note that memory requirement of each data type is different. For example, an integer object in Python occupies 4 bytes of memory, while a float object needs 8 bytes because of its fractional part. Hence, Python interpreter doesn't automatically convert a float to int, because it will result in loss of data. On the other hand, int can be easily converted into float by setting its fractional part to 0.
Implicit int to float casting takes place when any arithmetic operation on int and float operands is done.
a = 10
type(a) #class 'int
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