What is type conversion in Python?
It convert one data type to another.
Additional information
There are two types of Type Conversion in Python:
Implicit Type Conversion- The Python interpreter automatically converts one data type to another.
Example:
E = 30
print("E = ",type(E))
K = 33.0
print("K = ",type(K))
E = E + K
print("E = ", E)
print('Now "E" have different type!',type(E))
Output:
E = <class 'int'>
K = <class 'float'>
E = 63.0
Now "E" have different type! <class 'float'>
You can see the type ‘E’ is automatically changed to the “float” type from the “integer” type. This is a simple case of Implicit type conversion in python.
Explicit Type Conversion- The data type is manually changed by the user.
Data type examples
int() – converts any data type into integer type
E = 30
print(float(E))
#Output:
30.0
float() – converts any data type into float type
K = 33.6
print(int(K))
#Output:
33
ord() – converts characters into integer
character_to_integer = ord("E")
print ("After converting character to integer: ", character_to_integer)
#Output:
After converting character to integer: 69
hex() – converts integers to hexadecimal
int_to_hex = hex(30)
print ("After converting 30 to hexadecimal string : ", int_to_hex)
#Output:
After converting 30 to hexadecimal string : 0x1e
oct() – converts integer to octal
int_to_oct = oct(33)
print ("After converting 33 to octal string : ", int_to_oct)
#Output:
After converting 33 to octal string : 0o41
tuple() – This function is used to convert to a tuple.
E = "Ellie"
K = tuple(E)
print ("After converting string to tuple:", K)
#Output:
('E', 'l', 'l', 'i', 'e')
set() – This function returns the type after converting to set.
E = "Ellie"
K = set(E)
print ("After converting string to set : ", K)
#Output:
After converting string to set : {'l', 'E', 'i', 'e'}
list() – This function is used to convert any data type to a list type.
E = "Ellie"
K = list(E)
print ("After converting string to list : ", K)
#Output:
After converting string to list : ['E', 'l', 'l', 'i', 'e']
dict() – This function is used to convert a tuple of order (key,value) into a dictionary.
tup = (('a', 1) ,('f', 2), ('g', 3))
c = dict(tup)
print ("After converting tuple to dictionary: ", c)
#Output:
After converting tuple to dictionary: {'a': 1, 'f': 2, 'g': 3}
str() – Used to convert integer into a string.
a = 1
c = str(a)
print ("After converting integer to string: ", c)
#Output:
After converting integer to string: 1
complex(real,image) – This function converts real numbers to complex(real) number.
c = complex(1,2)
print ("After converting integer to complex number : ", c)
#Output:
After converting integer to complex number : (1+2j)