Python : Intro to strings

Question 1

In Python, the way we store something like a word, a sentence, or even a whole paragraph is as a ?

Answer 1

String

Question 2

What would be the code if you wanted to save your favorite word as a string to the variable favorite_word ?

Answer 2

favorite_word = “bella”

Question 3

Consider the string
favorite_fruit = “blueberry”. If we wanted to select the first letter from this string using the index. What would be the code?

Answer 3

favorite_fruit[0]

Question 4

Save your name as a string to the variable my_name. Then select the first letter of the variable my_name and save it to first_initial. What would the code look like?

Answer 4

my_name = “Anthony”

first_initial = my_name[0]

Question 5

What is it called when we select entire chunks of characters from a string?

Answer 5

slicing

Question 6

the syntax below is an example of what?

string_name[first_index:last_index]

Answer 6

slicing syntax

Question 7

If the first index is removed from the slicing syntax, the slice starts at the ?

Answer 7

the slice starts at the beginning

Question 8

If the second index is removed from the slicing syntax, the slice does what?

Answer 8

Continues to the end of the string

Question 9

Write a function called account_generator that takes two inputs, first_name and last_name and concatenates the first three letters of each and then returns the new account name. Use the variables above.

Answer 9

first_name = "Julie"
last_name = "Blevins"

def account_generator(first_name, last_name):
  return first_name[0:3] + last_name[0:3]

Question 10

What does the len() function do?

Answer 10

len() returns the number of characters in a string

Question 11

The len() function returns what?

Answer 11

the number of characters in a string

Question 12

Write a function called password_generator that takes two inputs, first_name and last_name and then concatenate the last three letters of each and returns them as a string.

Answer 12

def password_generator(first_name, last_name):
  last_three_first = first_name[len(first_name)-3:]
  last_three_last = last_name[len(last_name)-3:]
  return last_three_first + last_three_last

Question 13

Negative indices count backward from the end of the string, so string_name[-1] is the ?? of the string

Answer 13

last character of the string

Question 14

There is a variable named company_motto. How woudl you use negative indices to create a slice of the last 4 characters in company_motto

Answer 14

final_word = company_motto[-4:]

Question 15

Strings are ???. Which means that we cannot change a string once it is created.

Answer 15

immutable

Question 16

Write a new function called get_length() that takes a string as an input and returns the number of characters in that string. Do this by iterating through the string, don’t cheat and use len()!

Answer 16

def get_length(word):
  counter = 0
  for letter in word:
    counter += 1
  return counter

Question 17

Escape sequences are used to indicate what?

Answer 17

That we want to split something in a string that is not necessarily a character

Question 18

Newline or \n will allow us to split a multi-line string by what?

Answer 18

By line breaks

Question 19

\t will allow us to split a string by what?

Answer 19

By tabs