Lectures

lect01a—Why study programming languages?
lect01b—Scheme intro
lect01c-examples.ss
lect01c—Scheme intro: functions
lect02a.html
lect02a.ss
lect02b-Book.java
lect02b.ss
lect02c—design recipe; functions returning structs
lect02c.ss
lect03a—types as sets
lect03a.ss
lect03b—union types
lect03b.ss
lect03c—structs containing structs
lect04a—intro grammars/BNF
lect04b-list-template.ss
lect04b—recursive data def'ns, and processing them
lect04c—recursive structs: and the design recipe
lect04c.ss
lect05a.html
lect05a.ss
lect05b.ss
lect06-accum.ss
lect06c-.ss
lect07a.ss
lect07c.ss
lect08a.html
lect08b—still to do...
lect09a—union types in Java: and representing parse trees
lect09b.txt
lect09c—prolog intro
lect10a.ss
lect10b—prolog intro
lect10c—prolog intro
lect11a—numbers in prolog
lect11b—prolog finish: project comments
lect11c—prolog finish: project comments
lect12-scheme-versions-of-prolog.ss
lect12—prolog
lect12a—prolog: sorting
lect12b—sorting in prolog: and, review N2 soln
lect13a-scope-objects.html
lect13a-scope-objects.ss
lect13b-python—python primer
lect13b—...
lect13c—project notes; python cont.
lect14a—repl; python cont.
lect14b—pass-by-reference; start macros

Reading on Python: http://docs.python.org/tutorial/appetite.html.
Skim over sections 1,3,4,5. Don't pay close attention to individual library functions, but more to the control constructs and the language's “attitude”. You'll find it is heavily influenced by Scheme.
In class I'll breeze through parts of the above sections, and then talk more in depth about objects and classes in python (which can also be found in section 9 of that tutorial).

If you want (run-time) type-checking in your programs, see contract-examples.ss.

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