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IntroToPython

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17	17	Python, like every programming language, has a structure. Here are the big parts:
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19		* ''Variables'': Things you assign to and read from. Like in Algebra. `a="Dump Truck"` sets the variable `a` to the string "Dump Truck". You can set them to ~~numbers to~~ or fancy things like lists. They're basically the nouns.
	19	* ''Variables'': Things you assign to and read from. Like in Algebra. `a="Dump Truck"` sets the variable `a` to the string "Dump Truck". You can set them to strings/text, numbers or fancy things like lists. They're basically the nouns.
20	20	* ''Control Structures'': These are core programming language instructions like IF this is true THEN do that…. These are a lot like grammar rules, like: use active voice, or use punctuation. They're how you get stuff done.
21	21	* ''Functions'': These do things. They take nouns as arguments, do something, and can return nouns. In `redCar = paintCarRed(blueCar)`, `paintCarRed` is a function. They're the verbs, they do things, and they take variables and return variables. Many functions are built in to Python, but you can (and should) create your own.