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12 - String Manipulation

 1. If you want to slice off unwanted parts of a string from the beginning or end you can do so by creating a substring. The following code will produce an output of: 
message9 = "Hello World"
message9a = message9[1:8]
print(message9a)
stringmanipulation_python_question_1.jpg

  ello Wo

  World

  Hello

  llo Worl

 2. Note here that we are using the escape character "/" ...the output here is: 
>>> spam = 'it\'s only a bunny'
>>> print(spam[0:5])

  its

  ERROR

  it's

  \",1 Can you name one benefit of converting user input into lower?"

 3. The ord function gives the ______ value of a character. The chr function returns an integer into ______ 
>>> ord('b')

98

>>> chr(13)

\r

  index / string

  whole / integer

  integer / ascii

  ascii / integer

 4. The use of the + operator on line 3 is joining together strings to output: _____________ on line 4. This is called ___________________. 
firstname="Joe"
lastname="Bloggs"
fullname=firstname+lastname
print(fullname)

  JoeBloggs / concatenation

  Joe Bloggs / concatenation

  Joe Bloggs / addition

  JoeBloggs / combination

 5. You can also perform logical tests on strings using "in" and "not". Fill in the blanks below. 
>>> 'spam' in 'spam and eggs'

___________?

>>> 'gord' in 'brave sir Robin'

___________?

  False / False

  False / True

  True / True

  True / False

 6. What is the output when following code is executed ? 
>>> str1 = 'hello'
>>> str2 = ','
>>> str3 = 'world'
>>> str1[-1:]

  l - because -1 takes last letter -1 from the right.

  error - you cannot use a minus

  h because -1 refers to the first index from the left

  o because -1 corresponds to the last index.

 7. Given that the string variable order = "lobster", what would the value of order.subString(2,3) be?

  bst

  ter

  lob

  bs

 8. Landrover has brought out a new discovery sport model and its launch_date is: 8 January 2019. (see below) State the output for the following - fill in the blanks. 
launch_date="8 Jan 2019"

launch_date.subString[0]+date.subString(10,4)

>>Output 1 _______________?

launch_date.subString(2,3).upper

>>Output 2 _______________?

  Output 1: 98201; Output 2: JAN

  Output 1: 27; Output 2: jan

  Output 1: 82019; Output 2: JAN

  Output 1: 27; Output 2: jAN

 9. What will the output of the following code be? 
def main():

    string="I love python programming because python is fun, yes python is fun"
    
    number_of_pythons_in_string=string.count("python")
    print(number_of_pythons_in_string)
    
main()

  2

  Error

  1

  3


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