KPRIDE Python Programming Pedagogy

KPRIDE

Keywords

The code snippet below contains each of these key python programming concepts. Can you identify which line number they're on?

Being able to understand and use the right words to describe the code you're looking at helps you know what to search for and how to ask for help when you're writing your own code

Progress:

assignment: setting the value of a variable

boolean: True or False

built-in subprogram: a type of pre-existing subprogram which you can use in python without having to import any modules or defining it yourself (e.g. input / print)

comments: code is easier to read when each line or section of code is described in a way that helps other programmers understand what it does

indentation: code is easier to read when tabs or spaces are used to move blocks of code across to the right. This is necessary in python but optional in other programming languages

iteration: using FOR to loop through each value in a data structure (e.g. list or string)

output: using print(...) to display a message to the user

parameter: value passed into a subprogram which then behaves like a local variable for the scope of that subprogram

return value: data passed out of a function back to the part of code which called it

string: data structure which stores multiple characters in order

subprogram call: part of the code which causes a subprogram to actually run

subprogram definition: part of the code which tells the code what to do when a subprogram runs

user input: using input(...) to ask the user a question

variable: named memory location which can store a value which can change when the program runs

whitespace: code is easier to read when blank lines are used to break the code into logical paragraphs

Score: 0%

1/15: assignment

setting the value of a variable

Type in a line number where you can see this keyword in the python code then press check, or click on a line number

Line number:

 
# Functions: try it
 
def enter_number():
  while True:
    str_input = input("Please enter a number")
    try:
      number = int(str_input)
      return number
    except:
      print("Sorry, please try again")
      
value = enter_number()
print("Thank you, you entered the number", value)
 
# Challenges
# 1) Call enter_number again and save the return value into a variable called second_value
# 2) Change the function to return a float (real / decimal number) instead of an integer
# 3) Change the function so that it only returns if the user enters a value over 0

Predict

What do you think this program will output? What values do you think each variable will hold?

 
# Functions: try it
 
def enter_number():
  while True:
    str_input = input("Please enter a number")
    try:
      number = int(str_input)
      return number
    except:
      print("Sorry, please try again")
      
value = enter_number()
print("Thank you, you entered the number", value)
 
# Challenges
# 1) Call enter_number again and save the return value into a variable called second_value
# 2) Change the function to return a float (real / decimal number) instead of an integer
# 3) Change the function so that it only returns if the user enters a value over 0

My predictions:

Write each prediction of what the program will output.

You can also predict variable values e.g. a = 10

Predict / Run

See how accurate your predictions were. Did the code behave as you expected?

Investigate

Experiment by editing the code.

Ideas:

Try the program with different input data
Run it line by line (Ctrl and full stop) to see how variables change.
Read through the comments and see if there are any challenges to complete
Change the values of some variables or constants and see how that affects the program
Is there any input data that can crash the program?
Change the logic of the program to make it do something different
Add comments explaining what you've discovered

Debug

This code has been sabotaged with some common mistakes. Can you find and fix them all?

Click on the button to add 5 more errors to the code

Extend

Use your creativity along with what you've learned to create your own python project.

You get more points for each python skill you use from the keywords section

Click on "tests" to see a description of which python skills to aim for and keep track of which ones you've already used