Ch 8

When accessing each character in a string, such as for copying purposes, you would typically use a while loop.

False

You cannot use a for loop to iterate over the characters in a string.

False

If a whole paragraph is included in a single string, the split() method can be used to obtain a list of the sentences in the paragraph.

True

If the + operator is used on strings, it produces a string that is a combination of the two strings used as its operands.

True

Indexing works with both strings and lists.

True

The index -1 identifies the last character of a string.

True

Which method would you use to determine whether a certain substring is present in a string?

find(substring)

If the start index is ________ the end index, the slicing expression will return an empty string.

greater than

What will be displayed after the following code executes? mystr = 'yes' yourstr = 'no' mystr += yourstr * 2 print(mystr)

yesnono

What is the first negative index in a string?

-1

What are the valid indexes for the string 'New York'?

0 through 7

Indexing of a string starts at 1 so the index of the first character is 1, the index of the second character is 2, and so forth.

False

The following code will display 'yes + no': mystr = 'yes' yourstr = 'no' mystr += yourstr print(mystr)

False

The following expression is valid: string[i] = 'i'

False

The strip() method returns a copy of the string with all the leading whitespace characters removed but does not remove trailing whitespace characters.

False

What will be assigned to the variable s_string after the following code executes? special = '1357 Country Ln.' s_string = special[4:]

' Country Ln.'

What will be assigned to the variable some_nums after the following code executes? special = '0123456789' some_nums = special[0:10:2]

'02468'

What will be assigned to the variable s_string after the following code executes? special = '1357 Country Ln.' s_string = special[ :4]

'1357'

What will be the value of the variable string after the following code executes? string = 'abcd' string.upper()

'ABCD'

What will be the value of the variable string after the following code executes? string = 'abcd' string.upper()

'ABCD'

What will be the value of the variable string after the following code executes? string = 'Hello' string += ' world!'

'Hello world!'

What will be assigned to the variable s_string after the following code executes? special = '1357 Country Ln.' s_string = special[-3:]

'Ln.'

What will display after the following code executes? password = 'ILOVEPYTHON' if password.isalpha(): print('Invalid, must contain one number.') elif password.isdigit(): print('Invalid, must have one non-numeric character.') elif password.isupper(): print('Invalid, cannot be all uppercase characters.') else: print('Your password is secure!')

Invalid, must contain one number.

What list will be referenced by the variable list_strip after the following code executes? my_string = '03/07/2018' list_strip = my_string.split('/')

['03', '07', '2018']

Which method would you use to determine whether a certain substring is the suffix of a string?

endswith(substring)

What is the return value of the string method lstrip()?

the string with all leading white spaces removed