Emrcreatejobflowoperator Example

Resolution. Real life example: Below is a screenshot of the first "problem client" I ever let go. Below are some examples. Even if you are relying…. Toads and rats are both vertebrates of similar size. I am trying to set up an AWS EMR process in Airflow and I need the job_flow_overrides in the EmrCreateJobFlowOperator and the steps in the EmrAddStepsOperator to be set by separate JSON files located. Gerrit Code Review. The data collected by this form overlapped considerably with data collected on a paper admission form that was also filled out by nurses. Why GitHub? Features →. The cluster runs the steps specified. GitHub Gist: star and fork aviemzur's gists by creating an account on GitHub. Message view « Date » · « Thread » Top « Date » · « Thread » From: [email protected] FileIO TextFieldParser. Example Pipeline definition; It’s a DAG definition file; Importing Modules; Default Arguments; Instantiate a DAG; Tasks; Templating with Jinja; Setting up Dependencies; Recap; Testing. Using the primitive types and the constructs for creating complex types, types with arbitrary levels of nesting can be created. Airflow is a platform to programmatically author, schedule and monitor workflows. You must have the Admin role in the project to manage collaborato. Authorization can be done by supplying a login (=Storage account name) and password (=KEY), or login and SAS token in the extra field (see connection wasb_default for an example). Example exception: airflow. Airflow is a platform to programmatically author, schedule and monitor workflows. If operating system authentication is used, the name of the user logged in to the system will be used. Concurrency and Parallelism: Understanding I/O by Dávid Szakállas ( @szdavid92 ) – Full-Stack Developer at RisingStack With this article, we are launching a series of posts targeting developers who want to learn or refresh their knowledge about writing concurrent applications in general. it normally consists of overall application dataflow and processes of the Job Portal process. Who should use this guide. Codecademy is a great example of MOOC. An example of a POORLY written introduction to a biology report Footnote. Examples of Filipino Essays - Sanaysay, tailor-made for DepEd's Alternative Learning System A&E Test. There are never enough examples and sometimes you just want to see what something looks like on your local system through the eyes of puppet. Code with purpose with our engineering team. But when I run the Airflow Dag, it's continuously. In my last post, I shared my How To Build Your MVP presentation that A great example is Pebble, an e-paper watch for smart phones, which raised the largest kickstarter. Using the primitive types and the constructs for creating complex types, types with arbitrary levels of nesting can be created. Authorization can be done by supplying a login (=Storage account name) and password (=Storage account key), or login and SAS token in the extra field (see connection wasb_default for an example). But when I run the Airflow Dag, it's continuously. Afghanistan. Contribute to apache/airflow development by creating an account on GitHub. The benefit of doing this programmatically compared to interactively is that it is easier to schedule a Python script to run daily. Authorization can be done by supplying a login (=Storage account name) and password (=KEY), or login and SAS token in the extra field (see connection ``wasb_default`` for an example). The cluster runs the steps specified. Message view « Date » · « Thread » Top « Date » · « Thread » From: Björn Pollex (JIRA) Subject [jira] [Commented] (AIRFLOW-2508) Handle. For example, if a compute environment is associated with more than one job queue, the job queue with a higher priority is given preference for scheduling jobs to that compute environment. The best thing you can do for your company as founder/CEO is to hire a great team, so it’s worth investing a lot of time and energy into writing a great job description. Program 6-7, JobObjectShell, illustrates using job objects to limit process execution time and to obtain user time statistics. Message view « Date » · « Thread » Top « Date » · « Thread » From: [email protected] WasbBlobSensor. 集成反向代理Azure:Microsoft AzureAzure Blob存储WasbBlobSensorWasbPrefixSensorFileToWasbOperatorWasbHookAzure文件共享AzureFileShareHook记录Azure Data. I am trying to set up an AWS EMR process in Airflow and I need the job_flow_overrides in the EmrCreateJobFlowOperator and the steps in the EmrAddStepsOperator to be set by separate JSON files located. Example exception: airflow. Following is an example of an application letter. THANK YOU SO MUCH for posting assessment documentation examples. Apache Airflow Documentation¶. RunJobFlow creates and starts running a new cluster (job flow). py; configuration. For example, a type User may comprise of the following fields: gender — which is a STRING. For example, if a compute environment is associated with more than one job queue, the job queue with a higher priority is given preference for scheduling jobs to that compute environment. How to write a business plan Get detailed information about how to write a business plan on the Start Up Donut website. API description is available here. Each workflow includes cross-references to help you locate more information about performing each task. emr_create_job_flow_operator import EmrCreateJobFlowOperator:. RCA examples with evidence, problem statement, cause and effect, incident timeline, solutions, and final report. Apache Airflow. Examples for our common API. A community-based mothers and infants center called "Healthy Moms for Healthy Kids" (Pusat Ibu dan Anak Sihat or PIAS) will be established in Kota Emessu. Serving up Chicago-style Deep Learning. It enables firstline workers and their managers to manage time, communicate with their teams, and share content. Message view « Date » · « Thread » Top « Date » · « Thread » From: GitBox <@apache. Example Pipeline definition; It’s a DAG definition file; Importing Modules; Default Arguments; Instantiate a DAG; Tasks; Templating with Jinja; Setting up Dependencies; Recap; Testing. After the steps complete, the cluster stops and the HDFS partition is lost. emr_create_job_flow_operator import EmrCreateJobFlowOperator: from airflow. Select Category Accounting Tips Examples of Income Statement and Balance Sheet Financial Mathematics Fundamental Concepts of Accounting Goods and Services Tax Income Tax International. Airflow is a platform to programmatically author, schedule and monitor workflows. emr_job_flow_sensor import EmrJobFlowSensor: DEFAULT_ARGS = {' owner ': ' Airflow ', ' depends_on_past ': False,. A deep learning blog from the University of Chicago. com Skip to Job Postings , Search Close. I am capable of retrieving the job_flow_id from the operator but when I am going to create the steps to. After you create a project, add collaborators to share knowledge and resources freely, shift workloads flexibly, and help one another complete jobs. Meet The Overflow, a newsletter by developers, for developers. A number of the examples eschew pythonicity in order to demonstrate functional techniques common to many. A job is the smallest unit of work that you can schedule independently for execution. You must have the Admin role in the project to manage collaborato. JobObjectShell is a simple extension of JobShell that adds a command line time limit argument, in seconds. Who should use this guide. If using Internet Explorer, version 8 or newer is required. An example of a POORLY written introduction to a biology report Footnote. Purpose of this Documentation: The main agenda behind creating this documentation is to know how to create a project, job , one to one mapping and job execution in Data Service designer. For more information on how to set up. For example, an internal name for a user can be MBEECH or 009, where 009 represents the user's employee ID. from airflow. Example problems & RCA templates. Do you send emails or messages to yourself so you won't forget something cool you found online? With Flow you can share and keep links, images, videos and notes across your devices. 4,038 Oracle Workflow jobs available on Indeed. bootstrap_actions (--bootstrap-actions) : string list. Workflow Jobs; Workflow Jobs. Incubation is required of all newly accepted projects until a further review indicates that the infrastructure, communications, and decision making process have stabilized in a manner consistent with other successful ASF projects. Resolution. 15 examples of work flow charts to inspire and edit as you like 1- Employee termination Employee termination is an example of a delicate process flow chart because it has several steps that, if mismanaged, can create discomfort for both the employee and the employer, as well as providing a risk of monetary damages to the company. APIDOC Generated Example. Interface with Azure Blob Storage. A work flow defines the decision-making process for executing data flows. First, I had a Person class which is just a POJO…. If using Internet Explorer, version 8 or newer is required. A job is the smallest unit of work that you can schedule independently for execution. airflow-commits mailing list archives: January 2019 Site index · List index. emr_create_job_flow_operator. For example, you may wish to change the memory allocated to an executor process by changing spark. After the steps complete, the cluster stops and the HDFS partition is lost. It provides an overview of Process Manager concepts, how to use the Process Manager graphical interfaces to define, schedule, submit, monitor and control your work flows. Example Concept Maps - a visual learning tool, the concept map is an interactive and effective active learning strategy that can be used in a variety of educational settings. Use airflow to author workflows as directed acyclic graphs (DAGs) of tasks. Airflow is a platform to programmatically author, schedule and monitor workflows. Make sure that a Airflow connection of type wasb exists. You must have the Admin role in the project to manage collaborato. Connecting Organizational Silos: Taking Knowledge Flow Management to the Next Level with Social Media [Frank Leistner] on Amazon. Use Airflow to author workflows as Directed Acyclic Graphs (DAGs) of tasks. Note: The Workflow Manager repository name is created based on the database instance name and user name, for example, _. Who should use this guide. Authorization can be done by supplying a login (=Storage account name) and password (=KEY), or login and SAS token in the extra field (see connection wasb_default for an example). GitHub Gist: star and fork aviemzur's gists by creating an account on GitHub. Fascinating questions, illuminating answers, and entertaining links from around the web. Example Pipeline definition; It’s a DAG definition file; Importing Modules; Default Arguments; Instantiate a DAG; Tasks; Templating with Jinja; Setting up Dependencies; Recap; Testing. After you create a project, add collaborators to share knowledge and resources freely, shift workloads flexibly, and help one another complete jobs. Now, let's look at an example and try to further understand the various components of a SOW. where logs is a local dir to sync to. Their physiology, however, is quite different, as toads are ectothermic and. At Facebook, leadership began moving engineers around on different projects, giving workers opportunities to recharge and find passion projects. Do not begin your steps with a system response, however. Tett uses Facebook as an example of a business that avoided this despite the sort of rapid growth that often transforms company culture for the worse. An example of a POORLY written introduction to a biology report Footnote. org: Subject [04/35] incubator-airflow-site git commit: 1. An example application. This is an example dag for a AWS EMR Pipeline with auto steps. A work flow defines the decision-making process for executing data flows. This manual provides examples of complex printing scenarios and an overview of the Fiery EXP6000/EXP5000 features used in the examples. 5 Awesome MVP Examples. Say, you have to enter into an agreement with your client to deliver a mobile application within a certain. Afghanistan. Now, let's look at a few examples of what under most circumstances would probably be considered Since a translation is a derivative work, just as in the other examples, if an original foreign work is still. First, I had a Person class which is just a POJO…. Connecting Organizational Silos: Taking Knowledge Flow Management to the Next Level with Social Media [Frank Leistner] on Amazon. active — which is a BOOLEAN. Authorization can be done by supplying a login (=Storage account name) and password (=KEY), or login and SAS token in the extra field (see connection wasb_default for an example). Q&A for Work. In this example, I see that the EmrCreateJobFlowOperator receives the aws/emr connections that were setup in Airflow UI: cluster_creator = EmrCreateJobFlowOperator( task_id='create_job_flow',. emr_create_job_flow_operator import EmrCreateJobFlowOperator: from airflow. For example, a c1. Azure File Share¶. A work flow defines the decision-making process for executing data flows. 20 Amazon Elastic MapReduce Developer Guide Hive Script Overview You can submit steps to a cluster when the cluster is created or while it is running (if it is a long-running cluster). Apache Airflow. The best thing you can do for your company as founder/CEO is to hire a great team, so it’s worth investing a lot of time and energy into writing a great job description. Epic Systems EMR Certified in Inpatient; Clinical Documentation, Procedure Orders and EpicCare® Ambulatory Procedure Orders (EAP and EDP) builder for various hospital units and ambulatory practices; Nutrition/dietary, Behavioral Health (psych), Respiratory Therapy, Occupational Therapy, and Sleep Language Pathology, Pediatrics, Supplies, Cardiology, Orthopedics, etc. I am capable of retrieving the job_flow_id from the operator but when I am going to create the steps to. This is an example dag for a AWS EMR Pipeline. In this article we introduce a method to upload our local Spark applications to an Amazon Web Services (AWS) cluster in a programmatic manner using a simple Python script. This chapter describes the architecture and configuration of security for Oracle Workflow. Do you send emails or messages to yourself so you won't forget something cool you found online? With Flow you can share and keep links, images, videos and notes across your devices. Job analysis is one of the most important aspects of the HR’s job in a company and it is definitely not an easy job as the HR also has to deal with various aspects that would be related to the job. The script reads and queries a series of sample CloudFront logs stored in Amazon S3. Perl by Fayland Lam. Example problems & RCA templates. Example: Using Job Objects. API Example Scripts. Dear readers, these SAP BODS Interview Questions have been designed specially to get you acquainted with the nature of questions you may encounter during your interview for the subject of SAP BODS. Apache Airflow. For example, the hospital specific unit name might be 3-West, but nobody outside the hospital For example, did you have any experiences that might make you a more attractive candidate to the. In addition the HR also has to specify the various roles pertinent to a position. For example, an internal name for a user can be MBEECH or 009, where 009 represents the user's employee ID. We'll take you through the pros and cons of each method with some examples. PHP - Complete example with login, authentication and listing logs from MainServer. step_id="{{ task_instance. The examples are in Python, because many people find Python easy to read. Here is a list of supported SQL 92 with spatiotemporal based feature services:. C# (CSharp) Microsoft. A work flow defines the decision-making process for executing data flows. To get a flavor of the way a Linux-PAM application is written we include the following example. Perl by Fayland Lam. Example: Using Job Objects. This chapter describes how to configure human task service components and the human workflow service engine, including how to configure the notification mode for messages and actionable addresses. Changes in RcppExamples version 0. Message view « Date » · « Thread » Top « Date » · « Thread » From: Björn Pollex (JIRA) Subject [jira] [Commented] (AIRFLOW-2508) Handle. Meet The Overflow, a newsletter by developers, for developers. Azure Blob Storage¶. *FREE* shipping on qualifying offers. Starting by creating a cluster, adding steps/operations, checking steps and finally when finished terminating the cluster. Terminology and conventions. Example Result: [['Tony', '10'], ['Mike', '20'], ['Steve', '15']] Note If you pass fields to selected_fields which are in different order than the order of columns already in BQ table, the data will still be in the order of BQ table. The following are top voted examples for showing how to use org. This method allows you to solve all types of captchas. Perl by Fayland Lam. Verify that you have JavaScript enabled in your browser. A work flow defines the decision-making process for executing data flows. Use Airflow to author workflows as Directed Acyclic Graphs (DAGs) of tasks. Below are some examples. Top 10 project delivery manager interview questions and answers In this file, you can ref interview materials for project delivery manager such as types of int… Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Read example business plans on the Bplans website. I am trying to set up an AWS EMR process in Airflow and I need the job_flow_overrides in the EmrCreateJobFlowOperator and the steps in the EmrAddStepsOperator to be set by separate JSON files located. Each workflow includes cross-references to help you locate more information about performing each task. This is an example dag for a AWS EMR Pipeline. bootstrap_actions (--bootstrap-actions) : string list. It uses a hosted Hadoop framework running on the web-scale infrastructure of Amazon EC2 and Amazon S3. Everything having to do with data, including reading sources, transforming data, and loading targets, occurs inside a data flow. Codecademy is a great example of MOOC. emr_create_job_flow_operator. Apply to Oracle Developer, Database Administrator, Oracle Iam/idm and more! Oracle Workflow Jobs, Employment | Indeed. GitHub Gist: instantly share code, notes, and snippets. 15 examples of work flow charts to inspire and edit as you like 1- Employee termination Employee termination is an example of a delicate process flow chart because it has several steps that, if mismanaged, can create discomfort for both the employee and the employer, as well as providing a risk of monetary damages to the company. In this example, I see that the EmrCreateJobFlowOperator receives the aws/emr connections that were setup in Airflow UI: cluster_creator = EmrCreateJobFlowOperator( task_id='create_job_flow',. Learn how we can create a Job-Winning Resume for you. Your job description is the first touchpoint between your company and your new hire. Tett uses Facebook as an example of a business that avoided this despite the sort of rapid growth that often transforms company culture for the worse. Order Sets and. However, this python dictionary doesn't allow for templating (for example if you wanted to name your cluster differently for each execution date). General Appearance. For more information on how to set up. bootstrap_actions (--bootstrap-actions) : string list. xcom_pull('add_steps', key='return_value')[0] }}",. emr_terminate_job_flow_operator import. In Airflow, I'm facing the issue that I need to pass the job_flow_id to one of my emr-steps. Now, let's look at an example and try to further understand the various components of a SOW. Feel free to play with them (and watch the. it normally consists of overall application dataflow and processes of the Job Portal process. To get a flavor of the way a Linux-PAM application is written we include the following example. Amazon EMR is a web service which can be used to easily and efficiently process enormous amounts of data. Emrcreatejobflowoperator Example. py; configuration. After Pass 2 end, check for the count of each pair of item and if more than equal to s, the pair if considered to be frequent, i. I am capable of retrieving the job_flow_id from the operator but when I am going to create the steps to. TextFieldParser. Below are six examples of MOOC. For example, spatiotemporal based feature services support the like operator but do not support the not like operator or field equivalency expressions like field1 = field2. Make sure that a Airflow connection of type wasb exists. Azure Blob Storage ''''' All classes communicate via the Window Azure Storage Blob protocol. Bokeh Server example. In the past, barriers to entry with coding has made it difficult for the average learner to get involved. Learn how we can create a Job-Winning Resume for you. Airflow is a platform to programmatically author, schedule and monitor workflows. The example workflows illustrate how you can combine features to create jobs. GitHub Gist: star and fork aviemzur's gists by creating an account on GitHub. Incubation is required of all newly accepted projects until a further review indicates that the infrastructure, communications, and decision making process have stabilized in a manner consistent with other successful ASF projects. The basic way to control type and number of instances is with the instance_type and num_core_instances options, on the command line like this:. This chapter describes the architecture and configuration of security for Oracle Workflow. Contribute to apache/airflow development by creating an account on GitHub. Inactive Content. It's a seamless connection between your phone and your personal computer. For example, the hospital specific unit name might be 3-West, but nobody outside the hospital For example, did you have any experiences that might make you a more attractive candidate to the. Say, you have to enter into an agreement with your client to deliver a mobile application within a certain. Fascinating questions, illuminating answers, and entertaining links from around the web. Example web scraping website. For example, spatiotemporal based feature services support the like operator but do not support the not like operator or field equivalency expressions like field1 = field2. With millions of people searching for jobs on Indeed each month, a great job description can help you attract the most qualified candidates to your open position. The cluster runs the steps specified. Meet The Overflow, a newsletter by developers, for developers. This method allows you to solve all types of captchas. You can copy the text and paste into your own document or you can download a Word file at the bottom of the page. Order Sets and. Airflow is a platform to programmatically author, schedule and monitor workflows. Medical Office Receptionist Job Responsibilities:. airflow-commits mailing list archives: January 2019 Site index · List index. Example exception: airflow. Note: The Workflow Manager repository name is created based on the database instance name and user name, for example, _. Authorization can be done by supplying a login (=Storage account name) and password (=KEY), or login and SAS token in the extra field (see connection wasb_default for an example). Who should use this guide. Online Job Portal Data flow diagram is often used as a preliminary step to create an overview of the Job Portal without going into great detail, which can later be elaborated. *FREE* shipping on qualifying offers. The min() method will be very similar. Fascinating questions, illuminating answers, and entertaining links from around the web. In this example, I see that the EmrCreateJobFlowOperator receives the aws/emr connections that were setup in Airflow UI: cluster_creator = EmrCreateJobFlowOperator( task_id='create_job_flow',. This method allows you to solve all types of captchas. py; default_login. Purpose of this Documentation: The main agenda behind creating this documentation is to know how to create a project, job , one to one mapping and job execution in Data Service designer. You must have the Admin role in the project to manage collaborato. WorkflowJob. Timestamp. Emrcreatejobflowoperator Example. Cunt(i, j) >= s. The basic way to control type and number of instances is with the instance_type and num_core_instances options, on the command line like this:. Sensors are derived from BaseSensorOperator and run a poke method at a specified poke_interval until it returns True. OK ConceptDraw Solution Park Active Directory Diagrams. Course Titl. See also: AWS API Documentation. Each workflow includes cross-references to help you locate more information about performing each task. Apply to Oracle Developer, Database Administrator, Oracle Iam/idm and more! Oracle Workflow Jobs, Employment | Indeed. If you want other examples, our book provides examples of successful transfer essays for Stanford, the This paragraph, which emphasizes a unique aspect of Northern State, provides an example of. This is an example dag for a AWS EMR Pipeline. *FREE* shipping on qualifying offers. A Workflow Precess Step implementation in Java is a Class which implements the Interface JavaProcessExt (or JavaProcess if no external attributes are used). The ability to control user access to Web and application content and to protect your site against people breaking into your system is critical. Following is an example support letter you can use. Project collaborators. In addition the HR also has to specify the various roles pertinent to a position. This resume is an example of our Resume Writing Services. wasb_sensor. Information Technology (IT) Sample Resume. Use Creately’s easy online diagram editor to edit this diagram, collaborate with others and export results to multiple image formats. You can copy the text and paste into your own document or you can download a Word file at the bottom of the page. API description is available here. For example, if you're selling baby products, read baby manuals, not tech. Say, you have to enter into an agreement with your client to deliver a mobile application within a certain. Here's a simple (yet still thorough and mathematical) tutorial of how backpropagation works from the ground-up; together with a couple of example applets. Assessment Documentation Examples. * * @ author Rahul */. Fiery obFlow sample workflow summary If you want to recreate this workflow by yourself, follow the steps below: Create and define internal and/or external reviewers in the JobFlow User Management section so you can assign them later in the Approve module. Это лучшие примеры C# (CSharp) кода для Microsoft. Now, let's look at an example and try to further understand the various components of a SOW. org: Subject [09/35] incubator-airflow-site git commit: 1. org> Subject [GitHub] Fokko closed pull request #3981: [AIRFLOW-3133. More example scripts. , instead of their z-less counterparts [1]. All classes communicate via the Window Azure Storage Blob protocol. C# (CSharp) Microsoft. Authorization can be done by supplying a login (=Storage account name) and password (=KEY), or login and SAS token in the extra field (see connection wasb_default for an example). 5 Awesome MVP Examples. The examples are in Python, because many people find Python easy to read. Thank you for your examples in firing a client. A work flow defines the decision-making process for executing data flows. Efficient volume of qualified visitors to site (Manage to a Avg CPC Performance Metric ($0. Inventory Control Specialist Job Description Example. Cloud variant of a SMB file share. If operating system authentication is used, the name of the user logged in to the system will be used. RunJobFlow creates and starts running a new cluster (job flow). Example exception: airflow. org/docrep/w7295e/w7295e04. Who should use this guide. emr_add_steps_operator import EmrAddStepsOperator. Use airflow to author workflows as directed acyclic graphs (DAGs) of tasks. Now, let's look at an example and try to further understand the various components of a SOW. FileIO TextFieldParser. xlarge costs about 6 times as much as an m1. Make sure that a Airflow connection of type ``wasb`` exists. Attention: If you define custom views, the Name column must be sourced from a column that is no longer than 320 characters, and it is recommended that the internal name be all uppercase. Example: Project Overview. Sending email through SparkPost can be done through SMTP or using our API. Apply to Oracle Developer, Database Administrator, Oracle Iam/idm and more! Oracle Workflow Jobs, Employment | Indeed. Contribute to apache/airflow development by creating an account on GitHub. Course Titl. Setting Configuration Options; Setting up a Backend; Connections; Scaling Out with Celery. Authorization can be done by supplying a login (=Storage account name) and password (=KEY), or login and SAS token in the extra field (see connection ``wasb_default`` for an example). Do you send emails or messages to yourself so you won't forget something cool you found online? With Flow you can share and keep links, images, videos and notes across your devices. Biotechnology Program, Montgomery College - SOP. Dear readers, these SAP BODS Interview Questions have been designed specially to get you acquainted with the nature of questions you may encounter during your interview for the subject of SAP BODS. I am trying to set up an AWS EMR process in Airflow and I need the job_flow_overrides in the EmrCreateJobFlowOperator and the steps in the EmrAddStepsOperator to be set by separate JSON files located. Afghanistan. Feel free to revise this job description to meet your specific job duties and job requirements. How to write a Chef job description. 集成反向代理Azure:Microsoft AzureAzure Blob存储WasbBlobSensorWasbPrefixSensorFileToWasbOperatorWasbHookAzure文件共享AzureFileShareHook记录Azure Data. It enables firstline workers and their managers to manage time, communicate with their teams, and share content. For example, for an array A having the elements ['a', 'b', 'c'], A[1] retruns 'b'. Inventory Control Specialist Job Description Example. 293 Data Flow Diagram Examples jobs available on Indeed. Here you will find 20 plus examples of perceptual maps designed to give you a good understanding of how to construct a perceptual map for marketing purposes. 7 (2016-01-23) All examples were updated to use Rcpp Attributes and (where possible) use const & interfaces. Job analysis is one of the most important aspects of the HR’s job in a company and it is definitely not an easy job as the HR also has to deal with various aspects that would be related to the job. Below are six examples of MOOC. py; default_login.