UCSC CS Major Python Testout Exam

The following skills may be tested in the CSE 20 Testout Exam.

Python data structures: create and use lists, dictionaries, and sets. In particular:

• Creating a list.

• Appending, inserting, extending a list.

• Iterating over a list.

• List slicing.

• Creating a dictionary.

• Key lookup in a dictionary (possibly with a default value if the key is not found).

• Iterating over the keys, and key/value pairs in a dictionary.

• Creating sets

• Membership in a set, union, intersection, difference between sets.

Control flow:

• If / then / else.

• For and while loops.

• Break from a loop.

• For loops containing either other for loops (thus, nested loops), or if-then-else.

• assert statement.

Functions:

• Defining a function.

• Positional and named arguments.

• Returning a value.

Modules:

• Importing a module (from standard lib; no installation necessary).

• Using a function from a module.

I/O: Students should be able to read/write to files simply.

• Print function.

• Open a file.

• Read / write from file (simple).

Classes: Students should be able to define simple classes and create objects from them.

• Defining a simple class.

• Class initializer (__init__), object variables.

• Defining simple methods.

• Creating an object from a class.