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Python Articles
Page 6 of 852
Python – Incremental Slice concatenation in String list
When it is required to display incremental slice concatenation in string list, a simple iteration and list slicing is used.Below is a demonstration of the same −Examplemy_list = ['pyt', 'is', 'all', 'fun'] print("The list is :") print(my_list) my_result = '' for index in range(len(my_list)): my_result += my_list[index][:index + 1] print("The result is :") print(my_result)OutputThe list is : ['pyt', 'is', 'all', 'fun'] The result is : pisallfunExplanationA list is defined and displayed on the console.An empty string is created.The list is iterated over, and the element is concatenated with the consecutive element.This result is assigned to ...
Read MorePython – Sort Tuples by Total digits
When it is required to sort tuples by total digits, a method is defined that converts every element in the list to a string, and gets the length of each of these strings, and adds them up. This is displayed as result of the method.Below is a demonstration of the same −Exampledef count_tuple_digits(row): return sum([len(str(element)) for element in row]) my_tuple = [(32, 14, 65, 723), (13, 26), (12345, ), (137, 234, 314)] print("The tuple is :") print(my_tuple) my_tuple.sort(key = count_tuple_digits) print("The result is :") print(my_tuple)OutputThe tuple is : [(32, 14, 65, 723), (13, 26), (12345, ...
Read MorePython – Extract Row with any Boolean True
When it is required to extract row with any Boolean True, a list comprehension is used along with the ‘any’ operator.Below is a demonstration of the same −Examplemy_tuple = [[False, True], [False, False], [True, False, True], [False]] print("The tuple is :") print(my_tuple) my_result = [row for row in my_tuple if any(element for element in row)] print("The result is ") print(my_result)OutputThe tuple is : [[False, True], [False, False], [True, False, True], [False]] The result is [[False, True], [True, False, True]]ExplanationA list of list is defined and displayed on the console.A list comprehension is used to check if any ...
Read MorePython – Sort Matrix by Maximum String Length
When it is required to sort matrix by maximum string length, a method is defined that takes a list as parameter and uses list comprehension and the ‘max’ and ‘len’ methods to determine the result.Below is a demonstration of the same −Exampledef max_length(row): return max([len(element) for element in row]) my_matrix = [['pyt', 'fun'], ['python'], ['py', 'cool'], ['py', 'ea']] print("The matrix is :") print(my_matrix ) my_matrix .sort(key=max_length) print("The result is :") print(my_matrix )OutputThe matrix is : [['pyt', 'fun'], ['python'], ['py', 'cool'], ['py', 'ea']] The result is : [['py', 'ea'], ['pyt', 'fun'], ['py', 'cool'], ['python']]ExplanationA method named ...
Read MorePython – Test for all Even elements in the List for the given Range
When it is required to test all even elements in the list for the given range, a simple iteration and the modulus operator is used.Below is a demonstration of the same −Examplemy_list = [32, 12, 42, 61, 58, 60, 19, 16] print("The list is :") print(my_list) i, j = 2, 7 my_result = True for index in range(i, j + 1): if my_list[index] % 2 : my_result = False break print("The result is :") if(my_result == True): print("All The elements are in the given range") else: ...
Read MorePython – Test String in Character List and vice-versa
When it is required to test string in character list and vice-versa, a simple ‘in’ operator and ‘join’ method are used.Below is a demonstration of the same −Examplemy_string = 'python' print("The string is :") print(my_string) my_key = ['p', 'y', 't', 'h', 'o', 'n', 't', 'e', 's', 't'] print("The key is ") print(my_key) joined_list = ''.join(my_key) my_result = my_string in joined_list print("The result is :") if(my_result == True): print("The string is present in the character list") else: print("The string is not present in the character list")OutputThe string is : python The key is ['p', 'y', ...
Read MorePython – Average digits count in a List
When it is required to count average digits in a list, a simple iteration, the ‘str’ method and the ‘/’ operator is used.Below is a demonstration of the same −Examplemy_list = [324, 5345, 243, 746, 432, 463, 946787] print("The list is :") print(my_list) sum_digits = 0 for ele in my_list: sum_digits += len(str(ele)) my_result = sum_digits / len(my_list) print("The result is :") print(my_result)OutputThe list is : [324, 5345, 243, 746, 432, 463, 946787] The result is : 3.5714285714285716ExplanationA list is defined and displayed on the console.A variable is initialized to 0.The list is ...
Read MorePython – All combinations of a Dictionary List
When it is required to display all the combinations of a dictionary list, a simple list comprehension and the ‘zip’ method along with the ‘product’ method are used.Below is a demonstration of the same −Examplefrom itertools import product my_list_1 = ["python", "is", "fun"] my_list_2 = [24, 15] print("The first list is :") print(my_list_1) print("The second list is :") print(my_list_2) temp = product(my_list_2, repeat = len(my_list_1)) my_result = [{key : value for (key , value) in zip(my_list_1, element)} for element in temp] print("The result is :") print(my_result)OutputThe first list is : ['python', 'is', 'fun'] The second ...
Read MorePython – Sort Matrix by Row Median
When it is required to sort matrix by row median, a method is defined that uses the ‘median’ method to determine the result.Below is a demonstration of the same −Examplefrom statistics import median def median_row(row): return median(row) my_list = [[43, 14, 27], [13, 27, 24], [32, 56, 18], [34, 62, 55]] print("The list is :") print(my_list) my_list.sort(key = median_row) print("The result is :") print(my_list)OutputThe list is : [[43, 14, 27], [13, 27, 24], [32, 56, 18], [34, 62, 55]] The result is : [[13, 27, 24], [43, 14, 27], [32, 56, 18], [34, 62, ...
Read MorePython program to Sort Strings by Punctuation count
When it is required to sort strings by punctuation count, a method is defined that takes a string as a parameter and uses list comprehension and ‘in’ operator to determine the result.Below is a demonstration of the same −Examplefrom string import punctuation def get_punctuation_count(my_str): return len([element for element in my_str if element in punctuation]) my_list = ["python@%^", "is", "fun!", "to@#r", "@#$learn!"] print("The list is :") print(my_list) my_list.sort(key = get_punctuation_count) print("The result is :") print(my_list)OutputThe list is : ['python@%^', 'is', 'fun!', 'to@#r', '@#$learn!'] The result is : ['is', 'fun!', 'to@#r', 'python@%^', '@#$learn!']ExplanationThe required packages are ...
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