This can happen in the following conditions.ġ.Python ValueError: invalid literal for int() with base 10 occurs when input to int() method is alphanumeric instead of numeric and hence the input cannot be converted into an integer.This can be understood with the following example. When does “ValueError: invalid literal for int() with base 10” occur?Īs discussed above, “ValueError: invalid literal for int()” with base 10 can occur when input with an inappropriate value is passed to the int() function. Now, we will look at various types of inputs for which ValueError can be generated in the int() function. With other types of inputs, ValueError will be generated with the message ”invalid literal for int() with base 10” when they are passed as arguments to the int() function. The two input types shown in the above two examples are the only input types for which int() function works properly. Here the input consists of only the digits and hence it will be directly converted into an integer. We can convert a string consisting of digits to an integer as given in the following example. We can convert a floating point number to integer as given in the following example.When we convert a floating point number into integer using int() function, the digits after the decimal are dropped from the number in the output. This can be seen in the following examples.
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In this article, we will use the int() function with only the first argument and the default value for base will always be zero. The base has a default value 10 which is used for decimal numbers but we can pass a different value for base such as 2 for binary number or 16 for hexadecimal number. The int() function in python takes a string or a number as first argument and an optional argument base which denotes the number format. The second part of the message “invalid literal for int() with base 10” tells us that we have tried to convert an input to integer but the input has characters other than digits in the decimal number system. “ValueError” tells us that an exception has occurred because an improper value is passed as argument to the int() function.
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What is “ValueError: invalid literal for int() with base 10” in Python?Ī ValueError is an exception in python which occurs when an argument with the correct type but improper value is passed to a method or function.The first part of the message i.e. In this article, we will try to understand the reasons behind this exception and will look at different methods to avoid it in our programs. Python ValueError: invalid literal for int() with base 10 is an exception which can occur when we attempt to convert a string literal to integer using int() method and the string literal contains characters other than digits.