The int() function assumes that the string argument represents the decimal integer by default. ValueError: invalid literal for int() with base 10: 'eleven' Also, print(int(“11.21”)) will result in the Error since the String is an invalid argument to convert to an integer. For example: print(int(11.21)) will print 7. You should remember some of the exceptional cases:Īs an argument, the floating-point(an integer with a fractional part) will return the float rounded down to the nearest whole integer. It will raise the ValueError exception if any digit does not belong to a decimal number system. To convert the hexadecimal number to an integer, you will not have to pass the argument base=16 in the int() function. The ValueError exception occurs if the String you want to convert does not represent any numbers. While converting from String to int, you may get a ValueError exception. But one thing you need to keep in mind is that the output integer is always in base 10.Īnother thing you need to remember is that a given base must be between 2 to 32. If a string you want to convert belongs to a different number base other than base 10, you can specify that base for that conversion. If your String does not have decimal places, you will probably want to convert it to an integer using the int() method. Strings can be transformed into numbers using the int() and float() methods. #app.pyĬonverting str to int from different base These types offer flexibility for working with integers in different circumstances. You can see that we converted a string to an integer in Python. To convert the number represented in a string to int, you must use the int() function. Python also offers a handy built-in function, which takes a String object as an argument and returns the corresponding integer object. We have taken the different types of variables and printed them on the Python Console. To check the data type of a variable, use the type()function.
Python defines type conversion functions to convert one data type to another, useful in day-to-day and competitive programming. To convert a string to an integer with a different base in Python, pass the string to the int() method, which returns a decimal integer. Python string to int with different bases Complex numbers are not used much in Python programming. The real part of the number is a, and the imaginary part is b. Floats may also be in scientific notation, with E or e indicating the power of 10 (2.5e2 = 2.5 x 10 2 = 250).Ĭomplex (complex numbers) − are of the form a + bJ, where a and b are floats, and J (or j) represents the square root of -1 (which is an imaginary number). float (floating point real values) − Floats represent real numbers and are written with the decimal point dividing the integer and fractional parts.long (long integers ) − Also called longs, they are integers of unlimited size, written like integers and followed by the uppercase or lowercase L.Int (signed integers) − They are often called just ints or integers, are positive or negative whole numbers with no decimal point. If you define k = “10,” Python understands that you want to store the integer 10 as a string.Īlthough there are numerous other number systems, such as binary and hexadecimal, that use different bases to represent an integer.įor instance, you can represent the number one hundred and ten(110) in binary and hexadecimal as 1101110 and 6e, respectively. Of course, you can also use the String literal to store an integer. To store an integer value as an int in Python, assign a number to any variable, and it will become an integer data type.
#CONVERT STRING TO INT HOW TO#
Let’s see how to convert back to String from integer. You can see from the output that we have successfully converted a string to an integer in Python. Print("After converting Python String to Integer")Īfter converting Python String to Integer The int() is a built-in Python function that accepts the initial string and the optional base representing the data and returns an integer. To convert string to int in Python, use the int() function. You call it with the String containing the number as the argument, and it returns the number converted to an integer. Python interpreter understands that you want to store the integers 1 and 11 as strings.
Print('The data type of v1 is:', type(v1))
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