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# Python3.x Python3 isdecimal() Method [ Python3 Strings](#) * * * ## Description The isdecimal() method checks whether all characters in a string are decimal characters. ## Syntax The syntax for the isdecimal() method is: str.isdecimal() ## Parameters * None ## Return Value * **True** - If all characters in the string are decimal characters. * **False** - If at least one character is not a decimal character. ## Example The following examples demonstrate the usage of the isdecimal() function: ## Example #!/usr/bin/python3 str="tutorial2016" print(str.isdecimal()) str="23443434" print(str.isdecimal()) The output of the above examples is as follows: FalseTrue * * Python3 Strings](#)