Search for tag: "dictionaries"

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50:32 Zoom Oct. 27. Nested Lists and Dictionaries Zoom Oct. 27. Nested Lists and Dictionaries	Zoom Oct. 27. Nested Lists and Dictionaries This presentation explores the last built-in (as opposed to user-defined) types in this course. These types are often used to store data in files.We actually had an (accidental) sneak peak at these… row dictionary question dictionaries table thing elements function loops loop things copy questions exam length element alright call level accumulator From Hannah Lee 29 plays
52:31 Zoom Oct. 22. More Recursion Zoom Oct. 22. More Recursion	Zoom Oct. 22. More Recursion The divide-and-conquer examples we saw in the previous session were on the easy side. In this session we look at some much more challenging examples.Included in this session is segregate, the most… exam thing recursion alright lists fact question function numbers ladder string test letter element call tests left videos questions dictionaries From Hannah Lee 34 plays
10:01 Lesson 19.8 Keyword Expansion (OPTIONAL) Lesson 19.8 Keyword Expansion (OPTIONAL)	Lesson 19.8 Keyword Expansion (OPTIONAL) This video introduces an advanced topic that is completely optional and will not appear on any exam. Keyword expansion is the dictionary version of tuple expansion. It is used in modules like Kivy to… function expansion dictionary width star height keyword rectangle arguments call parameters bottom variable python edge definition y. tuple dictionaries lot From Hannah Lee 75 plays
05:47 Lesson 19.7 Mutable Table Functions Lesson 19.7 Mutable Table Functions	Lesson 19.7 Mutable Table Functions Dictionaries are mutables and support mutable functions. But this is a case where dictionaries are slightly different from lists. We are allowed to loop over a dictionary as we modify it, so long as… dictionary keys key student ids credit loop function grades net bonus folder statement assignment values dictionaries frame call students modifications From Hannah Lee 60 plays
04:43 Lesson 19.6 Immutable Dictionary Functions Lesson 19.6 Immutable Dictionary Functions	Lesson 19.6 Immutable Dictionary Functions Since we can loop over dictionaries, that means we probably want to use them in functions with accumulators. In this video we show how to do this and why they are not that much different from lists. grade accumulator dictionary exam function cutoff person maximum grades net ids functions dictionaries keys loop thing result ideas key frame From Hannah Lee 61 plays
04:32 Lesson 19.5 Dictionaries and For-Loops Lesson 19.5 Dictionaries and For-Loops	Lesson 19.5 Dictionaries and For-Loops Dictionaries are not sliceable, but they are iterable. In this video we show the many different ways you can use a dictionary in a for-loop. The primary thing to understand is that you have to… dictionary loop iterable key values keys dot pairs interval tuple method positions operator range notation brackets d. dictionaries job tool From Hannah Lee 83 plays
07:45 Lesson 19.4 Nested Dictionaries Lesson 19.4 Nested Dictionaries	Lesson 19.4 Nested Dictionaries In this video we show that we can nest dictionaries just like we nested lists. In fact, a lot of real world data is represented this way. We show off a particularly complicated JSON file that… dictionary dictionaries json weather key keys fact lists values units visibility hour timestamp things strings string tool airport 31st assignment From Hannah Lee 65 plays
06:19 Lesson 19.3 Dictionary Visualization Lesson 19.3 Dictionary Visualization	Lesson 19.3 Dictionary Visualization Since dictionaries are mutable, we must represent them with folders. In this video we show what these folders must look like. In doing so, we see that they look suspiciously similar to other folders… dictionary object color dictionaries objects folder rgb keys values methods python attributes boxes underscores strings key reason range gl method From Hannah Lee 70 plays
03:03 Lesson 19.2 Dictionary Assignment Lesson 19.2 Dictionary Assignment	Lesson 19.2 Dictionary Assignment Dictionaries are mutable. In this video we show how to alter there contents. This includes reassigning the value of a dictionary for a given key. But it also includes adding and deleting keys. dictionary key values keys john assignment net statement error things jane contents dictionaries pairs steps alt thing s3 idea operator From Hannah Lee 66 plays
07:52 Lesson 19.1 Dictionary Expressions Lesson 19.1 Dictionary Expressions	Lesson 19.1 Dictionary Expressions In this video, we introduce a dictionary as a collection of key-value pairs. We also show how to write a dictionary expression in Python. It looks just like a JSON string, but without the quotes. dictionary key dictionaries keys net values string pairs json lists strings names ids cornell things john assignment fact thing python From Hannah Lee 77 plays