Starting out with Python Chapter 8

अब Quizwiz के साथ अपने होमवर्क और परीक्षाओं को एस करें!

If a string has 10 characters, what is the index of the last character?

9

What does the following code display? numbers = [1, 2, 3, 4, 5, 6, 7] print(numbers[4:6])

[5, 6]

The isupper method converts a string to all uppercase characters. (True or False)

False

When you call a string's split method, the method divides the string into two substrings. (True or False)

False

This will happen if you try to use an index that is out of range for a string.

IndexError

What happens if you try to use an invalid index to access a character in a string?

IndexError

What does the following code display? mystr = 'yes' mystr += 'no' mystr += 'yes' print(mystr)

yesnoyes

What is the index of the first character in a string?

0

This is the first index in a string.

0

What does the following code print out? full_name = 'Patty Lynn Smith' middle_name = full_name[6:10] print(middle_name)

Lynn

What is wrong with the following code? animal = 'Tiger' animal[0] = 'L'

The expression animal[0] cannot appear on the left side of an assignment operator.

This is the last index in a string.

The size of the string minus one.

An IndexError will occur if you tru to use an index that is out of range for a particular string. (True or False)

True

Invalid indexes do not cause slicing expressions to raise an exception. (True or False)

True

Once a string is created, it cannot be changed. (True or False)

True

The modulus operator can be used to find the remainder as well as format strings. (True or False)

True

The repetition operator ( *) works with strings as well as with lists. (True or False)

True

You can use the for loop to iterate over the individual characters in a string. (True or False)

True

What will the following code display? mystring = 'abcdefg' print(mystring[:3])

abc

What does the following code display? mystr = 'abc' * 3 print(mystr)

abcabcabc

What will the following code display? mystring = 'abcdefg' print(mystring[:])

abcdefg

What does the following code display? mystring = 'abcdefg' print(mystring[2:5])

cde

What will the following code display? mystring = 'abcdefg' print(mystring[2:5])

cde

What will the following code display? mystring = 'abcdefg' print(mystring[3:])

defg

If the ____ index specifies a position beyond the end of the string, Python will use the length of the string instead.

end

Which method returns true if the string ends with substring?

endswith(substring)

This string method returns the lowest index in the string where a specified substring is found.

find()

Which method returns the lowest index in the string where substring is found? If the substring is not found, the method returns -1.

find(substring)

What does the %g operator format?

float

One of the easiest ways to access the individual characters in a string is to use the ___ loop.

for

This operator determines whether one string is contained inside another string.

in

What operator would you use to determine whether one string is contained in another string?

in

What does the %d operator format?

integer

Which method returns true if the string contains only alphabetic letters or digits and is at least one character?

isalnum()

This string method returns true if a string contains only alphabetic characters and is at least one character in length.

isalpha()

Which method returns true if the string contains only alphabetic letters and is at least one character length?

isalpha()

This string method returns true if a string contains only numeric digits and is at least one character in length.

isdigit()

Which method returns true if the string contains only numeric digits and is at least one character in length?

isdigit()

Which method returns true if all the alphabetic letters in the string are lowercase, and the string contains at least one alphabetic letter?

islower()

Which method returns true if the string contains only whitespace characters and is at least one character in length? (whitespace characters are spaces, newlines \n, and tabs \t)

isspace()

Which method returns true if all of the alphabetic letters in the string are uppercase, and the string contains at least one alphabetic letter>

isupper()

What does the following code display? name = 'joe' print(name.lower()) print(name.upper()) print(name)

joe JOE joe

How do you find the length of a string?

len()

This function returns the length of a string.

len()

Which method returns a copy of the string with all the letters converted to lowercase?

lower()

Which method returns a copy of the string with all leading whitespace characters removed?

lstrip()

Which method returns a copy of the string with all instances of char that appear at the beginning of the string removed?

lstrip(char)

Which method returns a copy of the string with all instances of old replaced by new?

replace(old, new)

This string method returns a copy of the string with all leading white space characters removed.

rstrip()

Which method returns a copy of the string with all trailing whitespace characters removed?

rstrip()

Which method returns a copy of the string with all instances of char that appear at the end of the string removed?

rstrip(char)

You can use _____________________ to select a range of characters from a string.

slicing expressions

If the _____ index is greater than the end index, the slicing expression will return an empty string.

start

If the _____ index specifies a position before the beginning of the string, Python will use 0 instead.

start

Which method returns true if the string starts with substring?

startswith(substring)

What does the %s operator format?

string

This string method returns a copy of the string with all leading and trailing whitespace characters removed.

strip()

Which method returns a copy of the string with all the leading and trailing whitespace removed?

strip()

Which method returns a copy of the string with all instances of char that appear at the beginning and end of the string removed?

strip(char)

A __________ is a string that appears within another string.

substring

String slices are also called __________.

substrings

Which method returns a copy of the string with all the letters converted to uppercase?

upper()


संबंधित स्टडी सेट्स

The Black Death Quiz (Michael Fabian)

View Set

Intermediate Accounting, Long-term Liabilities

View Set

Life Insurance and Annuities - Policy Replacement and Cancellation

View Set