A Smarter Way to Learn Python - Chapter 52 Exercises

If a condition isn't True, it's _______.

False

^ *False *$

Rewrite this Boolean assignment so it's valid.

the_flag = "False"

the_flag = False

^ *the_flag = False *$

Rewrite this statement using a Boolean instead of the string.

while incomplete == "yes":

while incomplete == True:

while `incomplete `=`= `True`:

Code the first line of an if statement that tests the falsity of today_is_tuesday .

if today_is_tuesday == False:

Assign one of the Booleans to a variable. Make everything up.

job_complete = True

^ *[a-zA-Z_][a-zA-Z0-9_]* = True|False *$

If one variable is True, a second variable is False. Write the code. Make up the variable names.

if x == True:
y = False

^ *if [a-zA-Z_][a-zA-Z0-9_]* == True:\n [a-zA-Z_][a-zA-Z0-9_]* = False *$

If a variable is False, change it to True. Make up the name of the variable.

if x == False:
x = True

^ *if ([a-zA-Z_][a-zA-Z0-9_]*) == False:\n \1 = True *$

Code a for loop that loops through a list. When an element in the list is False, break the loop. Make up the name of the list and the variable.

for an_element in list_of_booleans:
if an_element == False:
break

^ *for ([a-zA-Z_][a-zA-Z0-9_]*) in [a-zA-Z_][a-zA-Z0-9_]*:\n if \1 == False:\n break *$

Assign True to a variable. If another variable is True, change the Boolean of the first variable. Make everything up.

first_var = True
if second_var == True:
first_var = False

^ *([a-zA-Z_][a-zA-Z0-9_]*) = True\nif [a-zA-Z_][a-zA-Z0-9_]* == True:\n \1 = False *$

If the sum of two variables equals a third variable and a fourth variable is False, change the fourth variable. Otherwise, add the first variable to itself using concise coding. Make everything up.

if a + b == c and d == False:
d = True
else:
a += a

^ *if ([a-zA-Z_][a-zA-Z0-9_]*) \+ [a-zA-Z_][a-zA-Z0-9_]* == [a-zA-Z_][a-zA-Z0-9_]* and ([a-zA-Z_][a-zA-Z0-9_]*) == False:\n \2 = True\nelse:\n \1 \+= \1 *$

Assign different Booleans to two variables.
Assign 0 to a third variable.
As long as the two Boolean variables have different values, increment the third variable by 1 and make the first Boolean variable equal to the second Boolean variable.
Display the third variable.
Click the Run button above your code. If you've coded correctly, 1 will display in the right-hand panel. (You can click Instructions at the top of the right-hand panel to see the correct code.)

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Loop through the dictionary. When a value is True, display its key.
Click the Run button above your code. If you've coded correctly, all the keys except 100 will display in the right-hand panel. Because of a Python technicality, they won't be in order. (You can click Instructions at the top of the right-hand panel to see the correct code.)

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A Smarter Way to Learn Python / Chapter 52 Exercises

Congratulations. You've aced all the exercises for this chapter.

All of my books include free interactive online exercises that make the knowledge stick.