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Updated session 7 slides and answers
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‎session_07/README.md

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In this session we cover:
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- What are functions and why we use them
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- Creating your own functions
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- DRY Principle
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- DRY principle
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- Calling functions
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- Parameters
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- Returning values from Functions
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- Returning values from functions
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- Recursion

‎session_07/answers/A1.py

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# A1 - Write a function that prints your name
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def print_name():
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print("My name")
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‎session_07/answers/A2.py

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# A2 - Write a function that accepts a name as a parameter and prints "Hello, "
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def hello(name):
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print("Hello, " + name + "!")
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‎session_07/answers/A3.py

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# A3 - Loop through the list ["Alice", "Bob", "Charlie"] and call the function you just wrote
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def hello(name):
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print("Hello, " + name + "!")
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‎session_07/answers/A4.py

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# A4 - Write a function that prints the area of two passed in parameters
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def area(w, h):
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print("The area is " + str(w * h))
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‎session_07/answers/A5.py

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# A5 - Write a function called 'print_list' that accepts a list as a parameter and then prints out each item of the list
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def print_list(fruits):
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for fruit in fruits:
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print(fruit)

‎session_07/answers/A6.py

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# iii. If they are over 16, print 'You're too old for school"
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# vi. If they are 0, print "You're not born yet!"
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def school_eligibility(age):
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if age < 11:
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print("You're too young to go to this school.")

‎session_07/answers/B1.py

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# B1 - Write a function called is_odd that will return True if the integer is odd and
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# False if the integer passed as a parameter is even (hint: x % 2 will return true for all odd numbers)
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def is_odd(number):
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if number % 2 == 1:
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return True

‎session_07/answers/B2.py

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# B2 - Write a function that accepts a word and returns it backwards, e.g. 'hello' -> 'olleh'
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def reverse_word(name):
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#METHOD 1
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new_string = ""

‎session_07/answers/B3.py

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# **
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# *
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def print_stars(x):
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star = ""
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for y in range(0, x):

‎session_07/answers/B4.py

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# B4 - Create a padlock function.
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# You need to be able to pass in a passcode and if its correct it should return "Unlock", else "Locked"
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def padlock(user_guess):
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pin = 8450

‎session_07/answers/B6.py

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# B6 - Write a function called is_prime() that accepts a number and return True or False if the number of prime or not
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def is_prime(num):
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count = 0
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‎session_07/exercises/multiple_choice_7.md

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# KPMG:Code - Session 7 - Multiple Choice Questions
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1. What is a dictionary in Python?
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- a way to allow user input
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- a statement that allows a computer to make a decision
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- a way to print an output
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- a collection of data - A
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2. What brackets does a dictionary use?
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- {} - A
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- ()
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- []
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- <>
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3. A dictionary is an unordered collection of data.
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- True - A
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- False
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4. A tuple can be modified
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- True
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- False - A
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5. What will be the output of the below:
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shirt = {
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"size": "Large",
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"colour": "Red"
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}
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print(shirt["size"])
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- size
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- colour
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- Large
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- Red
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6. What would be the ouput of the below:
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contacts = [
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{"fname": "Ada", "lname": "Lovelace"},
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{"fname": "Alan", "lname": "Turing", "phone": "555-1234"},
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{"fname": "Steve", "lname": "Shirley"}
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]
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for person in contacts:
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if "phone" in person:
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print(person["fname"])
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- Ada
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- Alan
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- Steve - A
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- 555-1234
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7. What will stop this while loop:
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contacts = []
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fname = None
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while fname != "":
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fname = input("What is your first name? ")
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lname = input("What is your last name? ")
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if fname and lname:
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contacts.append({
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"fname": fname,
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"lname": lname
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})
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- nothing, it will run forever
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- entering a first name
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- not entering a first name
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- not entering a first name and last name
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8. Items in a dictionary are called _____ pairs.
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- key, value - A
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- value, key
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- key, arguments
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- value, arguments
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9. What will be the output of the below:
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shirt = {
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"size": "Large",
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"colour": "Red"
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}
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shirt["colour"] = "Green"
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- adds a new key/value
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- changes an existing value - A
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- deletes the key/value pair
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- prints out the dictionary
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10. What will be the output of the below:
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shirt = {
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"size": "Large",
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"colour": "Red"
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}
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del(shirt["size"])
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- adds a new key/value
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- changes an existing value
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- deletes the key/value pair - A
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- prints out the dictionary

‎session_07/slides/answers_7.md

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# [fit] IHF: Code
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# [fit] KPMG: Code
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## [fit] Python — Session 7 — Answers
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### Live at 10am
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## Any Questions
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### go to sli.do #python2020
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---
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# [fit] Next Session
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### Tuesday 230th June 10am
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### Lesson 8

‎session_07/slides/session_7.md

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# [fit] IHF: Code
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# [fit] KPMG: Code
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## [fit] Python — Session 7 — Lesson
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### Live at 10am
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---
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## Any Questions?
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### sli.do #python2020
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# [fit] Coding Time
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## Section B
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### Questions?
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### go to sli.do #python2020
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# [fit] Next Session
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### Thursday 25th June 10am
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### Answers

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