Python String Methods

Question 1

Converts the first character to upper case

Answer 1

capitalize()

Question 2

Converts string into lower case

Answer 2

casefold()

Question 3

Returns a centered string

Answer 3

center()

Question 4

Returns the number of times a specified value occurs in a string

Answer 4

count()

Question 5

Returns an encoded version of the string

Answer 5

encode()

Question 6

Returns true if the string ends with the specified value

Answer 6

endswith()

Question 6

Returns true if the string ends with the specified value

Answer 6

endswith()

Question 7

Sets the tab size of the string

Answer 7

expandtabs()

Question 8

Searches the string for a specified value and returns the position of where it was found

Answer 8

find()

Question 9

Formats specified values in a string

Answer 9

format()

Question 10

Formats specified values in a string

Answer 10

format_map()

Question 11

Searches the string for a specified value and returns the position of where it was found

Answer 11

index()

Question 12

Returns True if all characters in the string are alphanumeric

Answer 12

isalnum()

Question 13

Returns True if all characters in the string are in the alphabet

Answer 13

isalpha()

Question 14

Returns True if all characters in the string are ascii characters

Answer 14

isascii()

Question 15

Returns True if all characters in the string are decimals

Answer 15

isdecimal()

Question 16

Returns True if all characters in the string are digits

Answer 16

isdigit()

Question 17

Returns True if the string is an identifier

Answer 17

isidentifier()

Question 18

Returns True if all characters in the string are lower case

Answer 18

islower()

Question 19

Returns True if all characters in the string are numeric

Answer 19

isnumeric()

Question 20

Returns True if all characters in the string are numeric

Answer 20

isnumeric()

Question 21

Returns True if all characters in the string are printable

Answer 21

isprintable()

Question 22

Returns True if all characters in the string are whitespaces

Answer 22

isspace()

Question 23

Returns True if the string follows the rules of a title

Answer 23

istitle()

Question 24

Returns True if all characters in the string are upper case

Answer 24

isupper()

Question 25

Converts the elements of an iterable into a string

Answer 25

join()

Question 25

Converts the elements of an iterable into a string

Answer 25

join()

Question 26

Returns a left justified version of the string

Answer 26

ljust()

Question 27

Converts a string into lower case

Answer 27

lower()

Question 28

Returns a left trim version of the string

Answer 28

lstrip()

Question 29

Returns a translation table to be used in translations

Answer 29

maketrans()

Question 30

Returns a tuple where the string is parted into three parts

Answer 30

partition()

Question 31

Returns a string where a specified value is replaced with a specified value

Answer 31

replace()

Question 32

Searches the string for a specified value and returns the last position of where it was found

Answer 32

rfind()

Question 33

Searches the string for a specified value and returns the last position of where it was found

Answer 33

rindex()

Question 34

Returns a right justified version of the string

Answer 34

rjust()

Question 35

Returns a tuple where the string is parted into three parts

Answer 35

rpartition()

Question 36

Splits the string at the specified separator, and returns a list

Answer 36

rsplit()

Question 37

Returns a right trim version of the string

Answer 37

rstrip()

Question 38

Splits the string at the specified separator, and returns a list

Answer 38

split()

Question 39

Splits the string at line breaks and returns a list

Answer 39

splitlines()

Question 40

Returns true if the string starts with the specified value

Answer 40

startswith()

Question 41

Returns a trimmed version of the string

Answer 41

strip()

Question 42

Swaps cases, lower case becomes upper case and vice versa

Answer 42

swapcase()

Question 43

Converts the first character of each word to upper case

Answer 43

title()

Question 44

Returns a translated string

Answer 44

translate()

Question 45

Converts a string into upper case

Answer 45

upper()

Question 46

Fills the string with a specified number of 0 values at the beginning

Answer 46

zfill()

Question 47

Fills the string with a specified number of 0 values at the beginning

Answer 47

zfill()

Question 48

How do string methods affect the string?

Answer 48

All string methods returns new values. They do not change the original string.

Question 49

How do you assign strings to a variable?

Answer 49

• Assigning a string to a variable is done with the variable name followed by an equal sign and the string:
  a = “Hello”
• You can assign a multiline string to a variable by using three double or singe quotes:
  a = “"”Lorem ipsum dolor sit amet,
  consectetur adipiscing elit,
  sed do eiusmod tempor incididunt
  ut labore et dolore magna aliqua.”””
• OR
  a = ‘'’Lorem ipsum dolor sit amet,
  consectetur adipiscing elit,
  sed do eiusmod tempor incididunt
  ut labore et dolore magna aliqua.’’’

Question 50

How would you check if a character, word or phrase is in a string?

Answer 50

• To check if a certain phrase or character is NOT present in a string, we can use the keyword not in.
  txt = “The best things in life are free!”
  print(“expensive” not in txt)
• OR
  txt = “The best things in life are free!”
  if “expensive” not in txt:
  print(“No, ‘expensive’ is NOT present.”)