Search for tag: "statements"

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07:51 Lesson 30.3 Insertion Sort Lesson 30.3 Insertion Sort	Lesson 30.3 Insertion Sort In this video we introduce insertion sort, which is one of the simplest sorting algorithms to understand. If you have ever sorted cards in your hand it is likely that you have used this sorting… region position insertion hand question loop mark algorithm function card lot cards thing element statements assignment location notation helper helpers From Hannah Lee on December 10th, 2020 10 plays Content Categories Instructional Recordings Creation Date December 11th, 2020 Creator 1 First Name Walker Creator 1 Last Name White Creator 1 Role Faculty or Staff Member Creator 1 NetID wmw2 Language English Searchable Yes Searchable On Cornell Web Search
07:12 Lesson 30.2 Horizontal Notation Lesson 30.2 Horizontal Notation	Lesson 30.2 Horizontal Notation Sorting algorithms can be quite sophisticated. In order to understand them, we need some way to visualize them. In this video, we introduce horizontal notation, which is a way to track how much of a… dot region notation range things sorting loop numbers regions picture n. sort python videos box invariants portions pictures statements assignment From Hannah Lee on December 10th, 2020 11 plays Content Categories Instructional Recordings Creation Date December 11th, 2020 Creator 1 First Name Walker Creator 1 Last Name White Creator 1 Role Faculty or Staff Member Creator 1 NetID wmw2 Language English Searchable Yes Searchable On Cornell Web Search
07:29 Lesson 29.4 The yield Statement Lesson 29.4 The yield Statement	Lesson 29.4 The yield Statement While generators are coroutines, the communication only goes one way: from the child to the calling parent. In this video we show how to reverse this communication, passing down information from the… yield generator expression statement parent parentheses variable iteration letter receive x. statements expressions equals object return generators z. print tutor From Hannah Lee on December 3rd, 2020 35 plays Content Categories Instructional Recordings Creation Date December 4th, 2020 Creator 1 First Name Walker Creator 1 Last Name White Creator 1 Role Faculty or Staff Member Creator 1 NetID wmw2 Language English Searchable Yes Searchable On Cornell Web Search
08:46 Lesson 26.2 While-Loop Traces Lesson 26.2 While-Loop Traces	Lesson 26.2 While-Loop Traces While-loops can do everything that a for-loop can (and more) but they are much harder to use. That is why, in this video, we talk about how to debug a while-loop before we talk about how to write… loop loops accumulator function things tutor squares trace python sum flow x. variable body numbers lot control debugging statements print From Hannah Lee on November 12th, 2020 39 plays Content Categories Instructional Recordings Creation Date November 12th, 2020 Creator 1 First Name Walker Creator 1 Last Name White Creator 1 Role Faculty or Staff Member Creator 1 NetID wmw2 Language English Searchable Yes Searchable On Cornell Web Search
08:15 Lesson 26.1 The While-Loop Lesson 26.1 The While-Loop	Lesson 26.1 The While-Loop In this video we talk about the while-loop and explain why it is necessary. In particular, there are types of iteration that are not possible with the for-loop. loop expression times loops variable script statement elements body iterator accept chance lines difference statements iteration inside problem letter python From Hannah Lee on November 12th, 2020 45 plays Content Categories Instructional Recordings Creation Date November 12th, 2020 Creator 1 First Name Walker Creator 1 Last Name White Creator 1 Role Faculty or Staff Member Creator 1 NetID wmw2 Language English Searchable Yes Searchable On Cornell Web Search
06:04 Lesson 25.4 The raise Statement Lesson 25.4 The raise Statement	Lesson 25.4 The raise Statement Up until now, the only way that we knew how to create an error is with an assert statement. But these always create errors with the type AssertionError. In this video we show how to create errors… error statement object range integer errors precondition thing statements assertion function air custom expression rays bug enforcement foo preconditions division From Hannah Lee on November 12th, 2020 43 plays Content Categories Instructional Recordings Creation Date November 12th, 2020 Creator 1 First Name Walker Creator 1 Last Name White Creator 1 Role Faculty or Staff Member Creator 1 NetID wmw2 Language English Searchable Yes Searchable On Cornell Web Search
07:01 Lesson 25.3 Error Types and the Call Stack Lesson 25.3 Error Types and the Call Stack	Lesson 25.3 Error Types and the Call Stack After the last video, try-except looks less like an if-else statement and more like an if-elif-else statement. As we see in this video, this has profound effects on how errors interact with the call… error call function errors frame assertion functions statements subclass stack feedback recovery arithmetic division arguments beginning points valueerror zerodivisionerror bottom From Hannah Lee on November 12th, 2020 42 plays Content Categories Instructional Recordings Creation Date November 12th, 2020 Creator 1 First Name Walker Creator 1 Last Name White Creator 1 Role Faculty or Staff Member Creator 1 NetID wmw2 Language English Searchable Yes Searchable On Cornell Web Search
07:37 Lesson 21.4 Invariant Enforcement Lesson 21.4 Invariant Enforcement	Lesson 21.4 Invariant Enforcement We know how to enforce preconditions, but how do we force invariants for our attributes? As we see in this video, we do it much the same as for preconditions. But that is because we are going to… preconditions methods class attributes precondition statements invariance method hour purpose object getter programmer minute initializer attribute setter problem invariants values From Hannah Lee on October 30th, 2020 56 plays Content Categories Instructional Recordings Creation Date October 29th, 2020 Creator 1 First Name Walker Creator 1 Last Name White Creator 1 Role Faculty or Staff Member Creator 1 NetID wmw2 Language English Searchable Yes Searchable On Cornell Web Search
08:24 Lesson 20.3 Classes and Attributes Lesson 20.3 Classes and Attributes	Lesson 20.3 Classes and Attributes The primary role of an object is to store attribute variables. In this video we demonstrate the easiest way to add attributes to an object. We see that we can also add attributes to class folders as… folder object class attribute attributes python dot tutor assignment fall inside statement variable error definition a. constructor folders practice statements From Hannah Lee on October 27th, 2020 47 plays Content Categories Instructional Recordings Creation Date October 27th, 2020 Creator 1 First Name Walker Creator 1 Last Name White Creator 1 Role Faculty or Staff Member Creator 1 NetID wmw2 Language English Searchable Yes Searchable On Cornell Web Search
06:46 Lesson 20.1 Class Definitions Lesson 20.1 Class Definitions	Lesson 20.1 Class Definitions In this video we show you the basic format of a class definition. However, classes can contain a lot of features, so our classes will be very simple for this demonstration. class definition function classes specification parentheses word commands objects definitions functions module convention capital command statement statements body lot colon From Hannah Lee on October 27th, 2020 44 plays Content Categories Instructional Recordings Creation Date October 27th, 2020 Creator 1 First Name Walker Creator 1 Last Name White Creator 1 Role Faculty or Staff Member Creator 1 NetID wmw2 Language English Searchable Yes Searchable On Cornell Web Search
07:30 Lesson 16.1 The For-Loop Lesson 16.1 The For-Loop	Lesson 16.1 The For-Loop In this video we introduce a new control-structure: the for-loop. This control structure is specifically designed for processing iterable types like strings, tuples, and lists. string loop function letter variable dot print control counter instruction thing body expression things statements statement commands problem flow structure From Hannah Lee on October 19th, 2020 48 plays Content Categories Instructional Recordings Creation Date October 19th, 2020 Creator 1 First Name Walker Creator 1 Last Name White Creator 1 Role Faculty or Staff Member Creator 1 NetID wmw2 Language English Searchable Yes Searchable On Cornell Web Search
08:15 Lesson 14.3 Try-Except and the Stack Lesson 14.3 Try-Except and the Stack	Lesson 14.3 Try-Except and the Stack The except-portion of an try-except statement is only executed when there is an error/crash. But, as we have seen, errors can occur anywhere in the call stack. In this video we show how try-except… function call frame error print crash python script statements stack traces flow command infinity tutor result works statement head air From Hannah Lee on October 10th, 2020 22 plays Content Categories Instructional Recordings Creation Date October 10th, 2020 Creator 1 First Name Walker Creator 1 Last Name White Creator 1 Role Faculty or Staff Member Creator 1 NetID wmw2 Language English Searchable Yes Searchable On Cornell Web Search
03:45 Lesson 13.5 Assert Trade-Offs Lesson 13.5 Assert Trade-Offs	Lesson 13.5 Assert Trade-Offs Preconditions can get really complicated, and sometimes it is unclear how to enforce all of the preconditions. In this video we talk about why it is okay to break up a precondition and… precondition statement statements spaces problem space string violation beginning specification end webserver currency developer skill things challenge bit offs trade From Hannah Lee on October 10th, 2020 17 plays Content Categories Instructional Recordings Creation Date October 10th, 2020 Creator 1 First Name Walker Creator 1 Last Name White Creator 1 Role Faculty or Staff Member Creator 1 NetID wmw2 Language English Searchable Yes Searchable On Cornell Web Search
09:54 Lesson 13.4 Assert Messages Lesson 13.4 Assert Messages	Lesson 13.4 Assert Messages We now know how to do assert statements to create errors. But the error messages are a little cryptic. In this video we talk about how we can do a better job. string error precondition space spaces messages violation function statements quotes var parameter idea wrapper repre object objects thing strings statement From Hannah Lee on October 10th, 2020 17 plays Content Categories Instructional Recordings Creation Date October 10th, 2020 Creator 1 First Name Walker Creator 1 Last Name White Creator 1 Role Faculty or Staff Member Creator 1 NetID wmw2 Language English Searchable Yes Searchable On Cornell Web Search
10:24 Lesson 10.7 Multifunction Debugging Lesson 10.7 Multifunction Debugging	Lesson 10.7 Multifunction Debugging Top-down design simplifies the design of code, but it can make debugging a little more complicated. Now bugs are potentially spread across multiple functions. In this video we look at an extended… test month leap lot testing box problem statements print tests function position slash february bugs dates string error screen script From Hannah Lee on October 2nd, 2020 19 plays Content Categories Instructional Recordings Creation Date October 1st, 2020 Creator 1 First Name Walker Creator 1 Last Name White Creator 1 Role Faculty or Staff Member Creator 1 NetID wmw2 Language English Searchable Yes Searchable On Cornell Web Search
06:45 Lesson 10.6 Top-Down Design Lesson 10.6 Top-Down Design	Lesson 10.6 Top-Down Design Top-down design is a widely–used design technique. Your instructor used it to design the first assignment, and you will use it yourself in later assignments. In this video we take a closer look… size function word cases test numbers portion tens digits angler functions script statements glue remainder thousands precondition helper helpers rest From Hannah Lee on October 2nd, 2020 18 plays Content Categories Instructional Recordings Creation Date October 1st, 2020 Creator 1 First Name Walker Creator 1 Last Name White Creator 1 Role Faculty or Staff Member Creator 1 NetID wmw2 Language English Searchable Yes Searchable On Cornell Web Search