Convert String to Integer

Converting string to int python – Python: Convert String to Integer

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Converting string to int python: String is an immutable sequence data type in Python. It’s a string of Unicode characters enclosed by single, double, or triple quotes.

Given a string , the task is to convert the given string to integer.

Convert String to Integer in Python

1)int() function

Convert string to integer python: The int() function returns an integer number from the specified value.

If no arguments are provided, the int() function returns an integer object constructed from a number or string x, or it returns 0.

Syntax:

int(string, base)

Parameters:

string : consists of 1's and 0's   ( or )  The string that contains a number, such as ‘9347' or ‘1734' and so on.
base : (integer value) base of the number.
10 is the default value of base.

Returns :

Returns an integer value in the given base that is the binary string's equivalent.

2)Converting given string in integer

How to convert string to int in python: Assume we have a string as a Str object that contains the value ‘28119′. We’ll pass the string to the int() function to convert it to an integer, or int object. Which returns the int object after converting this string to an integer.

Below is the implementation:

# given string value
string_value = '28119'
# converting given string to integer
integer = int(string_value)
# printing the integer value
print(integer)
# printing the type after converting string to integer
print('printing the type of object after converting string to integer', type(integer))

Output:

28119
printing the type of object after converting string to integer <class 'int'>

Explanation:

Because we didn't provide a base argument, the base value 10 was used by default when converting the string to an integer.

3)Converting Binary string to integer

Convert string to integer python: Assume we have a Str object with the string ‘10101′. It contains a number’s binary representation. We’ll pass this string to the int() function along with the base value 2 to convert it to an integer, i.e., an int object. The int() function then converts the binary string to an integer and returns a value of int.

Below is the implementation:

# given binary string value
binary_String = '10101'
# converting given binarystring to integer
integer = int(binary_String, 2)
# printing the integer value
print(integer)

Output:

21

4)Converting Hexadecimal string to integer

Python cast str to int: Assume we have a Str object with the string ‘0x6DCF’. It contains a number’s hexadecimal representation. We’ll pass this string to the int() function along with the base value 16 to convert it to an integer, i.e., an int object. The int() function then converts the hex string to an integer and returns the object int.

Below is the implementation:

# given hexadecimal string value
hexadecimal_string = '0x6DCF'
# converting given hexadecimal to integer
integer = int(hexadecimal_string, 16)
# printing the integer value
print(integer)

Output:

28111

ValueError will be raised if the base value is not set to 16 with a hex string in the int() function. When converting a hexadecimal string to an int object, always remember to set the base value to 16.

5)Converting octal string to integer

Python convert string to integer: Assume we have a Str object with the string ‘0o103650′. It contains a number’s octadecimal representation. We’ll pass this string to the int() function along with the base value 8 to convert it to an integer, i.e., an int object. The int() function then converts the octadecimal to an integer and returns the object int.

Below is the implementation:

# given octal string value
octal_string = '0o103650'
# converting given octal_string to integer
integer = int(octal_string, 8)
# printing the integer value
print(integer)

Output:

34728

6)Converting a number string with a comma to an integer

Python cast string to int: We can convert the number string with comma  to integer . By removing all the ‘,’ from the string by replacing the ‘,’ with empty character and then we can use int() to convert it to integer.

Below is the implementation:

# given string
given_string = '2803,11,02'
# replacing the , with empty charcater using replace() function
given_string = given_string.replace(',', "")
# converting the string to integer
intvalue = int(given_string)
# print the string
print(intvalue)

Output:

28031102

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