1. I210 review

2. About Final Exam When: 2:45-4:45 p.m., Thurs., May 7 Where: BU 400
What will be covered: Everything we talked so far (excluding the optional topics)
If you attended most of the lectures, did the PLTL exercises, wrote your own codes, took the quizzes by yourself, you should have nothing to worry about the final exam!
Guide to Programming with Python

3. Data Types Data type: sequences (containers)
Strings (a sequence of letters)
Tuples (a sequence of elements of any type; immutable)
Lists (a sequence of elements of any type; mutable)
Dictionary is NOT a sequence
How to access the elements in a sequence
Sequential access (using for and while loops)
Indexing & Slicing
Removing and adding elements
Important sequence operators and functions, len([1, 2, 3]), ”a" in "abc", [1, 2, 3].index(1)
Guide to Programming with Python

4. Branching Structures Branches based on a condition/conditionsif
if-else
if-elif-else
Condition: Expression that is True or False
Often create conditions by comparing values
Treating values as conditions: Any empty (None) or zero value is False
Compound conditions (logical operators)
Guide to Programming with Python

5. Loop Structure
Need to know when and how to use for and while loops correctly
for loops: iterate over the elements in a sequence
while loops: repeat a block of code as long as a condition is
insertion_sort.py
Guide to Programming with Python

6. Functions How to write functions How to receive and return values
Understand local and global variables
Guide to Programming with Python

7. A Sample Question
Write a function to translate temperate value in Fahreheit to Celcius. The function takes in two real numbers, minF and maxF through its parameters, which signify the minimum Fahrenheit and maximum Fahreheit temperature to display, as well as a third real number, step, which signifies the increment between temperatures to display. The function needs to display the Fahrenheit values between minF and maxF in increments of step in a table associated with their Celcius equivalents to the screen. Recall that the formula for converting a Fahrenheit temperature to Celcius is: C = (5/9) * (F-32)
Guide to Programming with Python

8. Files How to use files text_file = open("read_it.txt", "r")
Read from text files; readline(), readlines()
Write to text files (permanent storage); write(), writelines()
Need to open a file before using it, and close it when it is done
How to extract information from the strings you read in from a text file!
text_file = open("read_it.txt", "r")
for line in text_file:
line = line.strip()
(name, score) = line.split()
Guide to Programming with Python

9. A Sample Question
Write a function that accepts a filename and reads in the comma-separated numbers from the text file. The function saves the numbers in a list, calculates and displays the average of the numbers, and return the list of numbers.
Guide to Programming with Python

10. Handling Exceptions
try:
num = float(raw_input("\nEnter a number: "))
except(ValueError):
print "That was not a number!"
else:
print "You entered the number", num
Can add single else clause after all except clauses
else block executes only if no exception is raised
num printed only if assignment statement in the try block raises no exception
Guide to Programming with Python

11. OOP How to create classes to define objects
How to write methods and create attributes for objects
How to instantiate objects from classes
Understanding inheritance
Derive new classes from existing ones
Extend the definition of existing classes
Override method definitions of existing classes
Using modules
Guide to Programming with Python

12. GUI Programming Events-driven programming! Work with a GUI toolkit
Tkinter
Create a root window and create a frame
Create and use widgets
Buttons; text entries; text boxes; check buttons; radio buttons
Layout of the widget; grid()
Create event handlers and bind (associate) events with event handlers
Guide to Programming with Python

13. A Sample Question
Guide to Programming with Python

14. Games Multiple choices only (no small questions)
How to use livewires, override update() and constructor method in a class derived from the games.Sprite
Understanding the important games objects (screen, keyboard, mouse) and classes (Sprites, Text, Message)
Guide to Programming with Python

15. Test me
Test if a function or a class works correctly by writing up a series of testing cases with different inputs
Of course, you need to know what are the expected results
Guide to Programming with Python