Python Articles - Page 617 of 1048

In this article, we will see how the users can get the tags associated in AWS Glue Resources.ExampleGet tags “glue-db: tests” from AWS glue database. Problem Statement: Use boto3 library in Python to get the tags from AWS Glue Resources.Approach/Algorithm to solve this problemStep 1: Import boto3 and botocore exceptions to handle exceptions.Step 2: resource_arn is the required parameter in this function.Format of resource_arn should be as following −Catalogarn:aws:glue:region:account-id:catalogDatabasearn:aws:glue:region:account-id:database/database nameTablearn:aws:glue:region:account-id:table/database name/table nameConnectionarn:aws:glue:region:account-id:connection/connection nameCrawlerarn:aws:glue:region:account-id:crawler/crawler-nameJobarn:aws:glue:region:account-id:job/job-nameTriggerarn:aws:glue:region:account-id:trigger/trigger-nameDevelopment endpointarn:aws:glue:region:account-id:devEndpoint/development-endpoint-nameMachine learning transformarn:aws:glue:region:account-id:mlTransform/transform-idStep 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 ... Read More

In this article, we will see how a user can add tags in AWS Glue Resources.ExampleAdd tags “glue-db: tests” in AWS glue database. Problem Statement: Use boto3 library in Python to add tags in AWS Glue Resources.Approach/Algorithm to solve this problemStep 1: Import boto3 and botocore exceptions to handle exceptions.Step 2: resource_arn and tags_dict are the required parameters in this function.The format of resource_arn should be as following −Catalogarn:aws:glue:region:account-id:catalogDatabasearn:aws:glue:region:account-id:database/database nameTablearn:aws:glue:region:account-id:table/database name/table nameConnectionarn:aws:glue:region:account-id:connection/connection nameCrawlerarn:aws:glue:region:account-id:crawler/crawler-nameJobarn:aws:glue:region:account-id:job/job-nameTriggerarn:aws:glue:region:account-id:trigger/trigger-nameDevelopment endpointarn:aws:glue:region:account-id:devEndpoint/development-endpoint-nameMachine learning transformarn:aws:glue:region:account-id:mlTransform/transform-idtags_dict should be as {“key”:”value”, ..}Step 3: Create an AWS session using boto3 lib. Make sure region_name is mentioned in the default profile. If it is ... Read More

When it is required to create a lap timer using Python, the ‘time’ method is used. The number of laps is predefined, and a try catch block is defined, to start the lap timer.Below is a demonstration of the same −Example Live Demoimport time start_time=time.time() end_time=start_time lap_num=1 print("Click on ENTER to count laps.Press CTRL+C to stop") try:    while True:       input()       time_laps=round((time.time() - end_time), 2)       tot_time=round((time.time() - start_time), 2)       print("Lap No. "+str(lap_num))       print("Total Time: "+str(tot_time))       print("Lap Time: ... Read More

When it is required to find the difference between the current time and a given time, a method can be defined, that takes the hours, minutes, and seconds as parameter. It then calculates the difference between two given times.Below is a demonstration of the same −Example Live Demodef difference_time(h_1, m_1, h_2, m_2):    t_1 = h_1 * 60 + m_1    t_2 = h_2 * 60 + m_2    if (t_1 == t_2):       print("The times are the same")       return    else:       diff = t_2-t_1    hours = (int(diff / ... Read More

When it is required to find yesterday, today and tomorrow’s date with respect to current date, the current time is determined, and a method is used (in built) that helps find previous day and next day’s dates.Below is a demonstration of the same −Example Live Demofrom datetime import datetime, timedelta present = datetime.now() yesterday = present - timedelta(1) tomorrow = present + timedelta(1) print("Yesterday was :") print(yesterday.strftime('%d-%m-%Y')) print("Today is :") print(present.strftime('%d-%m-%Y')) print("Tomorrow would be :") print(tomorrow.strftime('%d-%m-%Y'))OutputYesterday was : 05-04-2021 Today is : 06-04-2021 Tomorrow would be : 07-04-2021ExplanationThe required packages are imported into the environment.The current date is determined ... Read More

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