numpy string operations | isdigit() function Last Updated : 14 Jan, 2019 Comments Improve Suggest changes Like Article Like Report numpy.core.defchararray.isdigit(arr) function returns True for each element if all characters in the string are digits and there is at least one character; returns false otherwise. Parameters: arr : array_like of str or unicode. Returns : [ndarray] Output array of bools. Code #1 : Python3 # Python program explaining # numpy.char.isdigit() method import numpy as geek # input array contains only digits in_arr = geek.array([ '1000', '2000'] ) print ("Input array : ", in_arr) out_arr = geek.char.isdigit(in_arr) print ("Output array: ", out_arr) Output: Input array : ['1000' '2000'] Output array: [ True True] Code #2 : Python3 # Python program explaining # numpy.char.isdigit() method import numpy as geek # input array contains digits along with space and alphabets in_arr = geek.array([ '1000 2', 'a1000', '1234 ab'] ) print ("Input array : ", in_arr) out_arr = geek.char.isdigit(in_arr) print ("Output array: ", out_arr) Output: Input array : ['1000 2' 'a1000' '1234 ab'] Output array: [False False False] Comment More infoAdvertise with us Next Article Convert String to Int in Python J jana_sayantan Follow Improve Article Tags : Python Python-numpy Python numpy-String Operation Practice Tags : python Similar Reads numpy string operations | isdecimal() function numpy.core.defchararray.isdecimal(arr) function returns True for each element if there are only decimal characters in the element.It returns false otherwise. Parameters: arr : array_like of str or unicode. Returns : [ndarray] Output array of bools. Code #1 : Python3 # Python program explaining # num 1 min read numpy string operations | isnumeric() function numpy.core.defchararray.isnumeric(arr) function returns true for each element if there are only numeric characters and there is at least one character.It returns false otherwise. Parameters: arr : array_like of str or unicode. Returns : [ndarray] Output array of bools. Code #1 : Python3 # Python pro 1 min read Python String isdigit() Method The isdigit() method is a built-in Python function that checks if all characters in a string are digits. This method returns True if each character in the string is a numeric digit (0-9) and False otherwise. Example:Pythona = "12345" print(a.isdigit()) b = "1234a5" print(b.isdigit())OutputTrue False 3 min read Convert String to Int in Python In Python, converting a string to an integer is important for performing mathematical operations, processing user input and efficiently handling data. This article will explore different ways to perform this conversion, including error handling and other method to validate input string during conver 3 min read Convert String to Int in Python In Python, converting a string to an integer is important for performing mathematical operations, processing user input and efficiently handling data. This article will explore different ways to perform this conversion, including error handling and other method to validate input string during conver 3 min read Convert String to Int in Python In Python, converting a string to an integer is important for performing mathematical operations, processing user input and efficiently handling data. This article will explore different ways to perform this conversion, including error handling and other method to validate input string during conver 3 min read Like