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Commit b09501b

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Christopher Harrison
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‎.gitignore

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env
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# Created by https://www.gitignore.io/api/python,visualstudiocode
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# Edit at https://www.gitignore.io/?templates=python,visualstudiocode
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### Python ###
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# Byte-compiled / optimized / DLL files
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__pycache__/
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*.py[cod]
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sdist/
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var/
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wheels/
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pip-wheel-metadata/
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share/python-wheels/
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*.egg-info/
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.installed.cfg
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*.egg
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# Unit test / coverage reports
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htmlcov/
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.tox/
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.nox/
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.coverage
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.coverage.*
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.cache
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# Jupyter Notebook
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.ipynb_checkpoints
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# IPython
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profile_default/
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ipython_config.py
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# pyenv
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.python-version
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# pipenv
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# According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
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# However, in case of collaboration, if having platform-specific dependencies or dependencies
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# having no cross-platform support, pipenv may install dependencies that don’t work, or not
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# install all needed dependencies.
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#Pipfile.lock
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# celery beat schedule file
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celerybeat-schedule
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# mypy
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.mypy_cache/
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.dmypy.json
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dmypy.json
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# Pyre type checker
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.pyre/
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### VisualStudioCode ###
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.vscode/*
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!.vscode/settings.json
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!.vscode/tasks.json
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!.vscode/launch.json
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!.vscode/extensions.json
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### VisualStudioCode Patch ###
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# Ignore all local history of files
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.history
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# End of https://www.gitignore.io/api/python,visualstudiocode

‎10 - Complex conditon checks/boolean_variables.py

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# I check to see if the requirements for honour roll are met
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gpa = float(input('What was your Grade Point Average? '))
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lowest_grade = float(input('What was your lowest grade? '))
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# Boolean variables allow you to remember a True/False value
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if gpa >= .85 and lowest_grade >= .70:
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honour_roll = True
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else:
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honour_roll = False
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# Somewhere later in your code if you need to check if students is
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# on honour roll, all I need to do is check the boolean variable
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# I set earlier in my code
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if honour_roll:
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print('You made honour roll')

‎10 - Complex conditon checks/code_challenge.py

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# When you join a hockey team you get your name on the back of the jersey
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# but the jersey may not be big enough to hold all the letters
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# Ask the user for their first name
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# Ask the user for their last name
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# if first name is < 10 characters and last name is < 10 characters
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# print first and last name on the jersey
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# if first name >= 10 characters long and last name is < 10 characters
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# print first initial of first name and the entire last name
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# if first name < 10 characters long and last name is >= 10 characters
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# print entire first name and first initial of last name
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# if first name >= 10 characters long and last name is >= 10 characters
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# print last name only
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# Test with the following values
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# first name: Susan last name: Ibach
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# output: Susan Ibach
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# first name: Susan last name: ReallyLongLastName
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# output: Susan R.
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# first name: ReallyLongFirstName last name: Ibach
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# output: R. Ibach
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# first name: ReallyLongFirstName last name: ReallyLongLastName
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# output: ReallyLongLastName

‎10 - Complex conditon checks/code_challenge_solution.py

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# When you join a hockey team you get your name on the back of the jersey
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# but the jersey may not be big enough to hold all the letters
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# Ask the user for their first name
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first_name = input('Please enter your first name: ')
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# Ask the user for their last name
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last_name = input('Please enter your last name: ')
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# if first name is < 10 characters and last name is < 10 characters
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# print first and last name on the jersey
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# if first name >= 10 characters long and last name is < 10 characters
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# print first initial of first name and the entire last name
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# if first name < 10 characters long and last name is >= 10 characters
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# print entire first name and first initial of last name
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# if first name >= 10 characters long and last name is >= 10 characters
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# print last name only
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# Check length of first name
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if len(first_name) >=10:
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long_first_name = True
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else:
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long_first_name = False
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# Check length of last name
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if len(last_name) >= 10:
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long_last_name = True
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else:
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long_last_name = False
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# Evaluate possible jersey print combinations for different lengths
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if long_first_name and long_last_name:
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print(last_name)
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elif long_first_name:
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print(first_name[0:1] + '. ' + last_name)
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elif long_last_name:
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print(first_name + ' ' + last_name[0:1] + '.')
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else:
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print(first_name + ' ' + last_name)

‎10 - Complex conditon checks/readme.md

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# Complex condition checks
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Conditional execution can be completed using the [if](https://docs.python.org/3/reference/compound_stmts.html#the-if-statement) statement.
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`if` syntax
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```python
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if expression:
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# code to execute
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elif expression:
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# code to execute
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else:
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# code to execute
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```
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[Boolean values](https://docs.python.org/3/library/stdtypes.html#boolean-values) can be either `False` or `True`
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[Boolean operators](https://docs.python.org/3/library/stdtypes.html#boolean-operations-and-or-not)
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- **x *or* y** - If either x **OR** y is true, the expression is executed
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- **x *and* y** - If x **AND** y are both true, the expression is executed
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[Comparison operators](https://docs.python.org/3/library/stdtypes.html#comparisons)
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- < less than
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- < greater than
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- == is equal to
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- \>= greater than or equal to
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- <= less than or equal to
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- != not equal to
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- **x *in* [a,b,c]** Does x match the value of a, b, or c

‎10 - Complex conditon checks/using_and.py

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# A student makes honour roll if their average is >=85
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# and their lowest grade is not below 70
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gpa = float(input('What was your Grade Point Average? '))
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lowest_grade = input('What was your lowest grade? ')
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lowest_grade = float(lowest_grade)
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if gpa >= .85 and lowest_grade >= .70:
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print('You made the honour roll')
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‎11 - Collections/README.md

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# Collections
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Collections are groups of items. Python supports several types of collections. Three of the most common are dictionaries, lists and arrays.
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## Lists
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[Lists](https://docs.python.org/3/tutorial/introduction.html#lists) are a collection of items. Lists can be expanded or contracted as needed, and can contain any data type. Lists are most commonly used to store a single column collection of information, however it is possible to [nest lists](https://docs.python.org/3/tutorial/datastructures.html#nested-list-comprehensions)
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## Arrays
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[Arrays](https://docs.python.org/3/library/array.html) are similar to lists, however are designed to store a uniform basic data type, such as integers or floating point numbers.
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## Dictionaries
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[Dictionaries](https://docs.python.org/3/tutorial/datastructures.html#dictionaries) are key/value pairs of a collection of items. Unlike a list where items can only be accessed by their index or value, dictionaries use keys to identify each item.

‎11 - Collections/arrays.py

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from array import array
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scores = array('d')
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scores.append(97)
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scores.append(98)
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print(scores)

‎11 - Collections/common-operations.py

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names = ['Christopher', 'Susan']
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print(len(names)) # Get the number of items
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names.insert(0, 'Bill') # Insert before index
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print(names)

‎11 - Collections/dictionaries.py

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person = {'first': 'Christopher'}
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person['last'] = 'Harrison'
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print(person)
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print(person['first'])

‎11 - Collections/lists.py

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names = ['Christopher', 'Susan']
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scores = []
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scores.append(98)
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scores.append(99)
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print(names)
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print(scores)

‎11 - Collections/ranges.py

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names = ['Susan', 'Christopher', 'Bill']
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presenters = names[0:2] # Get the first two items
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# Starting index and number of items to retrieve
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print(names)
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print(presenters)

‎12 - Loops/README.md

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# Loops
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## For loops
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[For loops](https://docs.python.org/3/reference/compound_stmts.html#the-for-statement) takes each item in an array or collection in order, and assigns it to the variable you define.
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``` python
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names = ['Christopher', 'Susan']
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for name in names:
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print(name)
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```
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## While loops
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[While loops](https://docs.python.org/3/reference/compound_stmts.html#the-while-statement) perform an operation as long as a condition is true.
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``` python
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names = ['Christopher', 'Susan']
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index = 0
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while index < len(names):
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name = names[index]
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print(name)
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index = index + 1
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```

‎12 - Loops/for.py

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for name in ['Christopher', 'Susan']:
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print(name)

‎12 - Loops/number.py

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# range creates an array
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# First parameter is the starter
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# Second indicates the number of numbers to create
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# range(0, 2) creates [0, 1]
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for index in range(0, 2):
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print(index)

‎12 - Loops/while.py

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names = ['Christopher', 'Susan']
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index = 0
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while index < len(names):
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print(names[index])
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# Change the condition!!
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index = index + 1

‎13 - Functions/README.md

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# Functions
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Functions allow you to take code that is repeated and move it to a module that can be called when needed. Functions are defined with the `def` keyword and must be declared before the function is called in your code. Functions can accept parameters and return values.
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- [Functions](https://docs.python.org/3/tutorial/controlflow.html#defining-functions)
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```python
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def functionname(parameter):
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# code to execute
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return value
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```

‎13 - Functions/code_challenge.py

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# Create a calculator function
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# The function should accept three parameters:
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# first_number: a numeric value for the math operation
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# second_number: a numeric value for the math operation
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# operation: the word 'add' or 'subtract'
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# the function should return the result of the two numbers added or subtracted
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# based on the value passed in for the operator
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#
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# Test your function with the values 6,4, add
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# Should return 10
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#
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# Test your function with the values 6,4, subtract
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# Should return 2
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#
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# BONUS: Test your function with the values 6, 4 and divide
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# Have your function return an error message when invalid values are received
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‎13 - Functions/code_challenge_solution.py

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# Create a calculator function
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# The function should accept three parameters:
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# first_number: a numeric value for the math operation
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# second_number: a numeric value for the math operation
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# operation: the word 'add' or 'subtract'
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# the function should return the result of the two numbers added or subtracted
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# based on the value passed in for the operator
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#
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def calculator(first_number, second_number, operation):
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if operation.upper() == 'ADD':
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return(float(first_number) + float(second_number))
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elif operation.upper() =='SUBTRACT':
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return(float(first_number) - float(second_number))
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else:
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return('Invalid operation please specify ADD or SUBTRACT')
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# Test your function with the values 6,4, add
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# Should return 10
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#
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print('Adding 6 + 4 = ' + str(calculator(6,4,'add')))
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# Test your function with the values 6,4, subtract
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# Should return 2
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print('Subtracting 6 - 4 = ' + str(calculator(6,4,'subtract')))
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# Test your function with the values 6,4, divide
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# Should return some sort of error message
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print('Dividing 6 / 4 = ' + str(calculator(6,4,'divide')))

‎13 - Functions/get_initails_function.py

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# Create function get_initial to accept a name and
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# return the first letter of the name in uppercase
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# Parameters:
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# name: the name of a person
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# Return value:
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# first letter of name passed in as a parameter in uppercase
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def get_initial(name):
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initial = name[0:1].upper()
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return initial
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# This program will ask for someone's name and return the initials
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first_name = input('Enter your first name: ')
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# Call get_initial to retrieve initial of name
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first_name_initial = get_initial(first_name)
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middle_name = input('Enter your middle name: ')
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# Call get_initial to retrieve initial of name
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middle_name_initial = get_initial(middle_name)
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last_name = input('Enter your last name: ')
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# Call get_initial to retrieve initial of name
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last_name_initial = get_initial(last_name)
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print('Your initials are: ' + first_name_initial \
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+ middle_name_initial + last_name_initial)

‎13 - Functions/get_initials.py

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# Ask for a name and return the initials
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first_name = input('Enter your first name: ')
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first_name_initial = first_name[0:1]
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middle_name = input('Enter your middle name: ')
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middle_name_initial = middle_name[0:1]
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last_name = input('Enter your last name: ')
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last_name_initial = last_name[0:1]
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print('Your initials are: ' + first_name_initial \
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+ middle_name_initial + last_name_initial)
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