Type Conversion or Type Casting
Function and Description :
int(x[,base])
Converts x to an integer, base specifies the base if x is a string.
float(x)
Converts x to a floating-point number.
str(x)
Converts object x to a string representation.
list(s)
Converts s to list.
tuple(s)
Convert s to a tuple.
set(s)
Convert s to a set.
dict(d)
Creates a dictionary. D must be a sequence of (key, value) tuple.
ord(x)
Converts a single character to its Integer value.
hex(x)
Coverts an integer to hexadecimal string.
oct(x)
Converts an integer to an octal string.
complex(real)
Creates a complex number.
int(a,base): The function converts any data type to integer. ‘Base’ specifies the base in which string is if data type is string.
Example:
>>> print(int('2014'))
2014
>>> x='2014'
>>> print(type(x),x)
<class 'str'> 2014
>>> x=int(x)
>>> print(type(x),x)
<class 'int'> 2014
>>> print("1001",2)
1001 2
>>> print(int("1001",2))
9
>>> print(int(3.14055))
3
Type float(x) to convert x to a floating-point number.
Example:
>>> print(float('1.90'))
1.9
>>> print(float(5))
5.0
str() : Used to convert integer into a string.
Example :
>>> print(str(3.1455))
3.1455
>>> print(str([1,2,3,4]))
[1, 2, 3, 4]
list() : This function is used to convert any data type to a list type.
Example:
>>> print(list('Mary'))
['M', 'a', 'r', 'y']
>>> print(list((1,2,3,4)))
[1, 2, 3, 4]
>>> print(list((1,2,3,4)))
[1, 2, 3, 4]
>>> s="wercopypastedeveloper.blogspot.com"
>>> print(list(s))
['w', 'e', 'r', 'c', 'o', 'p', 'y', 'p', 'a', 's', 't', 'e', 'd', 'e', 'v', 'e', 'l', 'o', 'p', 'e', 'r', '.', 'b', 'l', 'o', 'g', 's', 'p', 'o', 't', '.', 'c', 'o', 'm']
tuple() : This function is used to convert to a tuple.
Example:
>>> print(tuple('Mary'))
('M', 'a', 'r', 'y')
>>> print(tuple([1,2,3,4]))
(1, 2, 3, 4)
>>> p="Python"
>>> print(tuple(p))
('P', 'y', 't', 'h', 'o', 'n')
set() : This function returns the type after converting to set.
Example:
>>> print(set('Mary'))
{'a', 'r', 'y', 'M'}
>>> print(set([1,2,3,4]))
{1, 2, 3, 4}
>>> s='Python'
>>> print(set(s))
{'n', 'P', 'y', 'o', 't', 'h'}
dict() : This function is used to convert a tuple of order (key, value) into a dictionary.
Example:
>>> print(dict(tup))
{'a': 1, 'b': 2, 'c': 3}
ord() : This function is used to convert a character to integer.
Example:
>>> a='A'
>>> print(ord(a))
65
>>> print(ord('Z'))
90
>>> print(ord('a'))
97
hex(): This function is to convert integer to hexadecimal string.
Example:
>>> c=hex(19)
>>> print(c)
0x13
>>> print(hex(1))
0x1
>>> print(hex(9))
0x9
oct() : This function is to convert integer to octal string.
Example:
>>> print(oct(1))
0o1
>>> print(oct(9))
0o11
>>>
complex(real,imag) : This function converts real numbers to complex(real, imag) number.
Example:
>>> c=complex(1,2)
>>> print(c)
(1+2j)
>>> print(complex(5,10))
(5+10j)
