![]() ![]() If the input string contains characters other than numbers, output will be as follows. Print("Input cannot be converted into integer.") The isdigit() method when invoked on a string returns true if the string consists of only numeric digits. ![]() We can use the isdigit() method to check if a string consists of only numeric characters or not. Both the methods have been discussed below. While converting a string to integer in Python, we can either preemptively check if the passed string consists of only the digits or not so that we can avoid the occurrence of error or we can use Python try except to handle the ValueError after it has been raised by the int() function. ValueError: invalid literal for int() with base 10: '11.17' How to avoid ValueError while converting string to integer? This can be seen in the following example. When the passed string contains any punctuation marks such as period character (.) or comma (,) along with numeric literals, ValueError will occur and input string will not be converted to integer. ValueError: invalid literal for int() with base 10: '11 17' When the passed string contains any space characters along with numeric literals, ValueError will occur and input string will not be converted to integer. When we pass a string containing alphabets instead of numeric literals, ValueError will occur and input string will not be converted to integer. There may be several cases in which int() function will raise ValueError while converting a string to integer. ValueError: invalid literal for int() with base 10: 'aditya1117' For which inputs ValueError will occur while converting a string to integer? When the input string is not in correct format, the int() function raises ValueError. We can convert a string to integer using int() function as follows. The string which has to be converted to integer is passed to the int() function as input argument and the function returns the corresponding integer value if the string passed as input is in proper format and no error occurs during conversion of the string to integer. ![]() We can use int() function to convert a string to integer in Python. How to convert string to integer in Python? In this article, we will look at how we can convert a string to integer without any errors and will implement the programs in Python. To use integer data in our program when it is passed as space separated integers, we need to convert the string input to integer after splitting them using Python string split operation. This is because the standard input in Python is always read as a string independent of the type of input. During programming in Python, We often need to convert a string to an integer in Python. ![]()
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