Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
When it is required to print the pattern of the letter ‘G’ using ‘*’, a method can be defined, and nested loop can be used to iterate through the numbers and print ‘*” to form a ‘G’ pattern.Below is a demonstration of the same −Exampledef display_pattern(my_line): my_pattern="" for i in range(0, my_line): for j in range(0, my_line): if ((j == 1 and I != 0 and I != my_line-1) or ((I == 0 or I == my_line-1) and j > 1 and j < my_line-2) or (I == ((my_line-1)/2) and j ... Read More
When it is required to print the fibonacci sequence using the method of recursion, a method can be declared that calls the same method again and again until a base value is reached.Below is a demonstration of the same −Example Live Demodef fibonacci_recursion(my_val): if my_val
In this article, we will see how a user can stop a crawler present in an AWS Glue Data Catalog.ExampleProblem Statement: Use boto3 library in Python to stop a crawler.Approach/Algorithm to solve this problemStep 1: Import boto3 and botocore exceptions to handle exceptions.Step 2: crawler_name is the parameter in this function.Step 3: Create an AWS session using boto3 lib. Make sure region_name is mentioned in the default profile. If it is not mentioned, then explicitly pass the region_name while creating the session.Step 4: Create an AWS client for glue.Step 5: Now use the stop_crawler function and pass the parameter crawler_name ... Read More
In this article, we will see how a user can stop a workflow present in an AWS account.ExampleProblem Statement: Use boto3 library in Python to stop a workflow.Approach/Algorithm to solve this problemStep 1: Import boto3 and botocore exceptions to handle exceptions.Step 2: workflow_name and run_id are the required parameters in this function.Step 3: Create an AWS session using boto3 lib. Make sure region_name is mentioned in the default profile. If it is not mentioned, then explicitly pass the region_name while creating the session.Step 4: Create an AWS client for glue.Step 5: Now use the stop_workflow_run function and pass the parameter ... Read More
In this article, we will see how a user can start a workflow in AWS Glue Data Catlog.ExampleProblem Statement: Use boto3 library in Python to start a workflow.Approach/Algorithm to solve this problemStep 1: Import boto3 and botocore exceptions to handle exceptions.Step 2: workflow_name is parameter in this function.Step 3: Create an AWS session using boto3 lib. Make sure region_name is mentioned in the default profile. If it is not mentioned, then explicitly pass the region_name while creating the session.Step 4: Create an AWS client for glue.Step 5: Now use start_workflow_run function and pass the parameter workflow_name as Name.Step 6: It returns ... Read More
In this article, we will see how a user can stop a trigger in AWS Glue Data Catalog.ExampleProblem Statement: Use boto3 library in Python to stop a trigger.Approach/Algorithm to solve this problemStep 1: Import boto3 and botocore exceptions to handle exceptions.Step 2: trigger_name is parameter in this function.Step 3: Create an AWS session using boto3 lib. Make sure region_name is mentioned in the default profile. If it is not mentioned, then explicitly pass the region_name while creating the session.Step 4: Create an AWS client for glue.Step 5: Now use the stop_trigger function and pass the parameter trigger_name as Name.Step 6: ... Read More
In this article, we will see how a user can start a trigger in AWS Glue Data Catalog.ExampleProblem Statement: Use boto3 library in Python to start a trigger.Approach/Algorithm to solve this problemStep 1: Import boto3 and botocore exceptions to handle exceptions.Step 2: trigger_name is the parameter in this function.Step 3: Create an AWS session using boto3 lib. Make sure region_name is mentioned in the default profile. If it is not mentioned, then explicitly pass the region_name while creating the session.Step 4: Create an AWS client for glue.Step 5: Now use the start_trigger function and pass the parameter trigger_name as Name.Step ... Read More
When it is required to get the count of unique keys for values in a list of tuple, it can be iterated over and the respective counts can be determined.Below is a demonstration of the same −Example Live Demoimport collections my_result = collections.defaultdict(int) my_list = [[('Hello', 'Hey')], [('Jane', 'Will')], [('William', 'John')], [('Hello', 'Hey')], [('z', 'q')]] print("The list of list is :") print(my_list) for elem in my_list: my_result[elem[0]] += 1 print("The result is : ") print(my_result)OutputThe list of list is : [[('Hello', 'Hey')], [('Jane', 'Will')], [('William', 'John')], [('Hello', 'Hey')], [('z', 'q')]] The result is : defaultdict(, {('Hello', 'Hey'): 2, ('Jane', ... Read More
When it is required to count the number of bidirectional tuple pairs in a list of tuples, the list can be iterated over using nested loops, and the ‘AND’ operation is performed on the first element and result of equality between first and second element.Below is a demonstration of the same −Example Live Demomy_list = [(45, 67), (11, 23), (67, 45), (23, 11), (0, 9), (67, 45)] print("The list is : ") print(my_list) my_result = 0 for idx in range(0, len(my_list)): for iidx in range(idx + 1, len(my_list)): if my_list[iidx][0] == my_list[idx][1] and my_list[idx][1] == ... Read More
When it is required to get the sum of all the nodes in a Tree, a ‘Tree_structure’ class is created, methods to set a root value, and to add other values are defined. It also has a method to determine the sum of all elements of a Tree structure. Various options are given that the user can select. Based on the user’s choice, the operation is performed on the Tree elements.Below is a demonstration of the same −Example Live Democlass Tree_structure: def __init__(self, data=None): self.key = data self.children = [] def set_root(self, ... Read More