Unit 5 - Lesson 1: Color Revisited Flashcards

Flashcards covering the definition and usage of for loops, the range function, and its application in Python graphical outputs.

for loop

A loop with the count variable built in, used for counting and replacing counting while loops to reduce the likelihood of an infinite loop.

range function

A built-in function in Python that creates and returns a list of numbers.

Conditions for using a for loop

Used instead of a while loop when there is a definite starting and ending point and you know exactly how many times the loop should run.

range(10)

A function call that generates a list of numbers from $0$ to $9$.

range(30, 35)

A function call that generates the numbers $30, 31, 32, 33, \text{ and } 34$.

range(20, 80, 20)

A function call that generates the sequence $20, 40, \text{ and } 60$.

range(100, 50, -10)

A function call that generates the sequence $100, 90, 80, 70, \text{ and } 60$.

draw_text

A method used in simplegui that takes a string, a position tuple, a font size, and a color to display text on a canvas.

color = "rgb(" + str(r) + ", " + str(g) + ", " + str(b) + ")"

A string concatenation method used to dynamically create color values for the draw_text function where $r, g, \text{ and } b$ are variables representing red, green, and blue components.