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Updated session 8 slides and added multiple choice questions:
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‎session_08/exercises/multiple_choice_8.md

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# KPMG:Code - Session 8 - Multiple Choice Questions
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1. To open the below file, fill in the missing word:
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f = ?("my_file.txt", "r")
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- input
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- read
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- open - A
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- close
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2. To read the below file, fill in the missing word:
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f = open("my_file.txt", "r")
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print(f.?())
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- input
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- read - A
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- open
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- close
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3. What does the "a" mode stand for?
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- read
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- append - A
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- write
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- create
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4. "w" mode, overwrites the contents of your file.
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- True - A
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- False
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5. "a" mode, overwrites the contents of your file.
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- True
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- False - A
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6. "r" mode will fail if the file its passed to doesn't exist.
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- True - A
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- False
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7. To close the below file, fill in the missing word:
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f = open("example.txt", "w")
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f.write("Hello World")
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f.?()
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- input
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- read
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- open
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- close - A
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8. To create a new file, file in the missing mode:
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f = open("example.txt", "?")
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- x - A
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- c
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- r
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- s
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9. What will be the output of the below:
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total = 0
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for x in open("example.txt"):
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total += 1
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print(total)
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- all the text from the file will be output
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- all the lines will be print out
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- the amount of lines in the file will be printed out - A
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- a new file will be created
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10. What will be the output of the below:
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f = open("odd.txt", "w")
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for x in open("numbers.txt"):
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x = int(x)
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if x % 2 == 1:
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f.write(str(x) + "\n")
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f.close()
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- all the even numbers will be written to numbers.txt
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- all the odd numbers will be written to numbers.txt
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- all the even numbers will be written to even.txt
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- all the odd numbers will be written to odd.txt - A

‎session_08/slides/answers_8.md

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# [fit] IHF: Code
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# [fit] KPMG: Code
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## [fit] Python — Session 8 — Answers
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### Live at 10am
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---
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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 7th July 10am
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### Lesson 9

‎session_08/slides/session_8.md

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# [fit] IHF: Code
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# [fit] KPMG: Code
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## [fit] Python — Session 8 — Lesson
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### Live at 10am
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---
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# Review
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---
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# Modules
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```python
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import random
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from math import floor
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```
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---
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# Random Module
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```python
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import random
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# Random float from 0.0 to 1.0
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print random.random()
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# Gets a random number between 1 and 10
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number = random.randint(1, 10)
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```
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---
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# Math Module
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```python
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from math import floor, ceil
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number = floor(3.2) # 3
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print(floor(9.99)) # 9
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number = ceil(3.2) # 4
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print(ceil(9.99)) # 10
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```
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---
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# For Loops
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```python
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names = ["Alice", "Bob", "Charlie"]
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for person in names:
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print(person)
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# Alice
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# Bob
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# Charlie
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```
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---
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# While Loops
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```python
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guess = None
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while guess != 4:
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# Continues to ask for a number until you enter 4
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guess = int(input("What's your number? "))
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```
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---
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# Infinite Loops
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```python
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while True:
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# This loops forever
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print("Hello")
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```
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---
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# Break Statements
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```python
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while True:
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print("Hello")
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break
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```
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---
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# While Vs For Loop
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```python
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x = 1
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while x <= 100:
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print(x)
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x += 1
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for y in range(1, 101):
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print(y)
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```
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---
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# Collections
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- List
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- Tuple
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- Set
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- Dictionary
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---
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# Collections — List
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```python
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names = ["Alice", "Bob", "Charlie"]
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names.append("Dave") # ["Alice", "Bob", "Charlie", "Dave"]
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names[2] = "Chris" # ["Alice", "Bob", "Chris", "Dave"]
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del(names[1])# ["Alice", "Chris", "Dave"]
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if "Eve" in names:
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print("Eve is here")
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for name in names:
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print(name)
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```
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---
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# Collections — Tuple
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```python
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colours = ("Red", "Blue", "Green")
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print(colours[0]) # Red
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print(colours[1]) # Blue
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print(colours[2]) # Green
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```
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---
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# Collections — Set
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```python
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fruit = {"Apple", "Banana", "Cherry"}
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for item in fruit:
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print(item)
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```
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---
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# Collections — Dictionary
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```python
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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"]) # Large
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shirt["material"] = "Cotton" # Add new key/value pair
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shirt["colour"] = "Green" # Change existing value
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del(shirt["size"]) # Delete key/value pair
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if "material" in shirt:
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print("The material is: " + shirt["material"])
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for key in shirt:
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print(str(key) + " = " + str(shirt[key]))
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```
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---
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# Nested Collections
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```python
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phone_grid = [
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[1, 2, 3],
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[4, 5, 6],
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[7, 8, 9],
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["*", 0, "#"]
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]
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for row in phone_grid:
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for column in row:
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print(column)
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```
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---
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# List of Dictionaries
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```python
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contacts = [
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{"fname": "Alice", "lname": "Smith"},
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{"fname": "Bob", "lname": "Jones", "phone": "555-1234"},
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{"fname": "Charlie", "lname": "McCloud"}
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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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```
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---
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# Functions
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```python
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---
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## Any Questions?
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### sli.do #python2020
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---
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# [fit] Coding Time
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## Section B
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---
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### 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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### Thursday 2nd July 10am
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### Answers

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