Conditionals

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Conditionals

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What do we do to a Python statement that is immediately after an if statement to indicate that the statement is to be executed only when the if statement is true?

1 point

Begin the statement with a curly brace {

Underline all of the conditional code

Start the statement with a "#" character

Indent the line below the if statement

Clear selection

Which of these operators is not a comparison / logical operator?

1 point

Clear selection

What is true about the following code segment:

if x == 5 :

print('Is 5')

print('Is Still 5')

print('Third 5')

1 point

The string 'Is 5' will always print out regardless of the value for x.

The string 'Is 5' will never print out regardless of the value for x.

Only two of the three print statements will print out if the value of x is less than zero.

Depending on the value of x, either all three of the print statements will execute or none of the statements will execute

Clear selection

When you have multiple lines in an if block, how do you indicate the end of the if block?

1 point

You use a curly brace { after the last line of the if block

You omit the semicolon ; on the last line of the if block

You put the colon : character on a line by itself to indicate we are done with the if block

You de-indent the next line past the if block to the same level of indent as the original if statement

Clear selection

You look at the following text:

if x == 6 :

print('Is 6')

print('Is Still 6')

print('Third 6')

It looks perfect but Python is giving you an 'Indentation Error' on the second print statement. What is the most likely reason?

1 point

Python has reached its limit on the largest Python program that can be run

You have mixed tabs and spaces in the file

Python thinks 'Still' is a mis-spelled word in the string

In order to make humans feel inadequate, Python randomly emits 'Indentation Errors' on perfectly good code - after about an hour the error will just go away without any changes to your program

Clear selection

What is the Python reserved word that we use in two-way if tests to indicate the block of code that is to be executed if the logical test is false?

1 point

except

else

iterate

break

Clear selection

What will the following code print out?

x = 0

if x < 2 :

print('Small')

elif x < 10 :

print('Medium')

else :

print('LARGE')

print('All done')

1 point

All Done Small

Small Medium

Small All done

Medium LARGE All done

Clear selection

For the following code,

if x < 2 :

print('Below 2')

elif x >= 2 :

print('Two or more')

else :

print('Something else')

What value of 'x' will cause 'Something else' to print out?

1 point

x = 2.0

This code will never print 'Something else' regardless of the value for 'x'

x = -2

x = -2.0

Clear selection

In the following code (numbers added) - which will be the last line to execute successfully?

(1) astr = 'Hello Bob'

(2) istr = int(astr)

(3) print('First', istr)

(4) astr = '123'

(5) istr = int(astr)

(6) print('Second', istr)

1 point

Clear selection

For the following code:

astr = 'Hello Bob'

istr = 0

try:

istr = int(astr)

except:

istr = -1

What will the value be for istr after this code executes?

1 point

The istr variable will not have a value

It depends on the position in the collating sequence for the letter 'H'

It will be the 'Not a number' value (i.e. NaN)

-1

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