Initial commit

Author: Christopher Harrison

.gitignore

@@ -1,3 +1,9 @@
+env
+
+# Created by https://www.gitignore.io/api/python,visualstudiocode
+# Edit at https://www.gitignore.io/?templates=python,visualstudiocode
+
+### Python ###
 # Byte-compiled / optimized / DLL files
 __pycache__/
 *.py[cod]
@@ -20,6 +26,8 @@ parts/
 sdist/
 var/
 wheels/
+pip-wheel-metadata/
+share/python-wheels/
 *.egg-info/
 .installed.cfg
 *.egg
@@ -38,6 +46,7 @@ pip-delete-this-directory.txt
 # Unit test / coverage reports
 htmlcov/
 .tox/
+.nox/
 .coverage
 .coverage.*
 .cache
@@ -72,9 +81,20 @@ target/
 # Jupyter Notebook
 .ipynb_checkpoints
 
+# IPython
+profile_default/
+ipython_config.py
+
 # pyenv
 .python-version
 
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don’t work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
 # celery beat schedule file
 celerybeat-schedule
 
@@ -102,3 +122,21 @@ venv.bak/
 
 # mypy
 .mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+### VisualStudioCode ###
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+
+### VisualStudioCode Patch ###
+# Ignore all local history of files
+.history
+
+# End of https://www.gitignore.io/api/python,visualstudiocode

10 - Complex conditon checks/boolean_variables.py

@@ -0,0 +1,15 @@
+# I check to see if the requirements for honour roll are met
+gpa = float(input('What was your Grade Point Average? '))
+lowest_grade = float(input('What was your lowest grade? '))
+
+# Boolean variables allow you to remember a True/False value
+if gpa >= .85 and lowest_grade >= .70:
+	honour_roll = True
+else:
+	honour_roll = False
+
+# Somewhere later in your code if you need to check if students is 
+# on honour roll, all I need to do is check the boolean variable
+# I set earlier in my code
+if honour_roll:
+	print('You made honour roll')

10 - Complex conditon checks/code_challenge.py

@@ -0,0 +1,24 @@
+# When you join a hockey team you get your name on the back of the jersey
+# but the jersey may not be big enough to hold all the letters
+# Ask the user for their first name
+
+# Ask the user for their last name
+
+# if first name is < 10 characters and last name is < 10 characters 
+#       print first and last name on the jersey
+# if first name >= 10 characters long and last name is < 10 characters
+#       print first initial of first name and the entire last name
+# if first name < 10 characters long and last name is >= 10 characters
+#       print entire first name and first initial of last name
+# if first name >= 10 characters long and last name is >= 10 characters
+#       print last name only
+
+# Test with the following values
+# first name: Susan  last name: Ibach
+# output: Susan Ibach
+# first name: Susan  last name: ReallyLongLastName
+# output: Susan R.
+# first name: ReallyLongFirstName  last name: Ibach
+# output: R. Ibach
+# first name: ReallyLongFirstName  last name: ReallyLongLastName
+# output: ReallyLongLastName

10 - Complex conditon checks/code_challenge_solution.py

@@ -0,0 +1,37 @@
+# When you join a hockey team you get your name on the back of the jersey
+# but the jersey may not be big enough to hold all the letters
+# Ask the user for their first name
+first_name = input('Please enter your first name: ')
+# Ask the user for their last name
+last_name = input('Please enter your last name: ')
+
+# if first name is < 10 characters and last name is < 10 characters 
+#       print first and last name on the jersey
+# if first name >= 10 characters long and last name is < 10 characters
+#       print first initial of first name and the entire last name
+# if first name < 10 characters long and last name is >= 10 characters
+#       print entire first name and first initial of last name
+# if first name >= 10 characters long and last name is >= 10 characters
+#       print last name only
+
+# Check length of first name
+if len(first_name) >=10:
+    long_first_name = True
+else:
+    long_first_name = False
+
+# Check length of last name
+if len(last_name) >= 10:
+    long_last_name = True
+else:
+    long_last_name = False
+ 
+# Evaluate possible jersey print combinations for different lengths
+if long_first_name and long_last_name:
+    print(last_name)
+elif long_first_name:
+    print(first_name[0:1] + '. ' + last_name)
+elif long_last_name:
+    print(first_name + ' ' + last_name[0:1] + '.')
+else:
+    print(first_name + ' ' + last_name)

10 - Complex conditon checks/readme.md

@@ -0,0 +1,31 @@
+# Complex condition checks
+
+Conditional execution can be completed using the [if](https://docs.python.org/3/reference/compound_stmts.html#the-if-statement) statement.
+
+`if` syntax
+
+```python
+if expression:
+    # code to execute
+elif expression:
+    # code to execute
+else:
+    # code to execute
+```
+
+[Boolean values](https://docs.python.org/3/library/stdtypes.html#boolean-values) can be either `False` or `True`
+
+[Boolean operators](https://docs.python.org/3/library/stdtypes.html#boolean-operations-and-or-not)
+
+- **x *or* y** - If either x **OR** y is true, the expression is executed
+- **x *and* y** - If x **AND** y are both true, the expression is executed
+
+[Comparison operators](https://docs.python.org/3/library/stdtypes.html#comparisons)
+
+- < less than
+- < greater than
+- == is equal to
+- \>= greater than or equal to
+- <= less than or equal to
+- != not equal to
+- **x *in* [a,b,c]** Does x match the value of a, b, or c

10 - Complex conditon checks/using_and.py

@@ -0,0 +1,9 @@
+# A student makes honour roll if their average is >=85
+# and their lowest grade is not below 70
+gpa = float(input('What was your Grade Point Average? '))
+lowest_grade = input('What was your lowest grade? ')
+lowest_grade = float(lowest_grade)
+
+if gpa >= .85 and lowest_grade >= .70:
+		print('You made the honour roll')
+

11 - Collections/README.md

@@ -0,0 +1,14 @@
+# Collections
+
+Collections are groups of items. Python supports several types of collections. Three of the most common are dictionaries, lists and arrays.
+
+## Lists
+
+[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)
+## Arrays
+
+[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.
+
+## Dictionaries
+
+[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

@@ -0,0 +1,5 @@
+from array import array
+scores = array('d')
+scores.append(97)
+scores.append(98)
+print(scores)

11 - Collections/common-operations.py

@@ -0,0 +1,4 @@
+names = ['Christopher', 'Susan']
+print(len(names)) # Get the number of items
+names.insert(0, 'Bill') # Insert before index
+print(names)

11 - Collections/dictionaries.py

@@ -0,0 +1,4 @@
+person = {'first': 'Christopher'}
+person['last'] = 'Harrison'
+print(person)
+print(person['first'])

11 - Collections/lists.py

@@ -0,0 +1,6 @@
+names = ['Christopher', 'Susan']
+scores = []
+scores.append(98)
+scores.append(99)
+print(names)
+print(scores)

11 - Collections/ranges.py

@@ -0,0 +1,6 @@
+names = ['Susan', 'Christopher', 'Bill']
+presenters = names[0:2] # Get the first two items
+# Starting index and number of items to retrieve
+
+print(names)
+print(presenters)

12 - Loops/README.md

@@ -0,0 +1,24 @@
+# Loops
+
+## For loops
+
+[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.
+
+``` python
+names = ['Christopher', 'Susan']
+for name in names:
+    print(name)
+```
+
+## While loops
+
+[While loops](https://docs.python.org/3/reference/compound_stmts.html#the-while-statement) perform an operation as long as a condition is true.
+
+``` python
+names = ['Christopher', 'Susan']
+index = 0
+while index < len(names):
+    name = names[index]
+    print(name)
+    index = index + 1
+```

12 - Loops/for.py

@@ -0,0 +1,2 @@
+for name in ['Christopher', 'Susan']:
+	print(name)

12 - Loops/number.py

@@ -0,0 +1,6 @@
+# range creates an array
+# First parameter is the starter
+# Second indicates the number of numbers to create
+# range(0, 2) creates [0, 1]
+for index in range(0, 2):
+	print(index)

12 - Loops/while.py

@@ -0,0 +1,6 @@
+names = ['Christopher', 'Susan']
+index = 0
+while index < len(names):
+	print(names[index])
+	# Change the condition!!
+	index = index + 1

13 - Functions/README.md

@@ -0,0 +1,11 @@
+# Functions
+
+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.
+
+- [Functions](https://docs.python.org/3/tutorial/controlflow.html#defining-functions)
+
+```python
+def functionname(parameter):
+    # code to execute
+    return value
+```

13 - Functions/code_challenge.py

@@ -0,0 +1,17 @@
+# Create a calculator function
+# The function should accept three parameters:
+# first_number: a numeric value for the math operation
+# second_number: a numeric value for the math operation
+# operation: the word 'add' or 'subtract'
+# the function should return the result of the two numbers added or subtracted
+# based on the value passed in for the operator
+#
+# Test your function with the values 6,4, add 
+# Should return 10
+#
+# Test your function with the values 6,4, subtract 
+# Should return 2
+# 
+# BONUS: Test your function with the values 6, 4 and divide 
+# Have your function return an error message when invalid values are received
+

13 - Functions/code_challenge_solution.py

@@ -0,0 +1,26 @@
+# Create a calculator function
+# The function should accept three parameters:
+# first_number: a numeric value for the math operation
+# second_number: a numeric value for the math operation
+# operation: the word 'add' or 'subtract'
+# the function should return the result of the two numbers added or subtracted
+# based on the value passed in for the operator
+#
+
+def calculator(first_number, second_number, operation):
+    if operation.upper() == 'ADD':
+        return(float(first_number) + float(second_number))
+    elif operation.upper() =='SUBTRACT':
+        return(float(first_number) - float(second_number))
+    else:
+        return('Invalid operation please specify ADD or SUBTRACT')
+# Test your function with the values 6,4, add 
+# Should return 10
+#
+print('Adding 6 + 4 = ' + str(calculator(6,4,'add')))
+# Test your function with the values 6,4, subtract 
+# Should return 2
+print('Subtracting 6 - 4 = ' + str(calculator(6,4,'subtract')))
+# Test your function with the values 6,4, divide 
+# Should return some sort of error message
+print('Dividing 6 / 4 = ' + str(calculator(6,4,'divide')))

13 - Functions/get_initails_function.py

@@ -0,0 +1,25 @@
+# Create function get_initial to accept a name and 
+# return the first letter of the name in uppercase
+# Parameters:
+#   name: the name of a person
+# Return value:
+#   first letter of name passed in as a parameter in uppercase 
+def get_initial(name):
+    initial = name[0:1].upper()
+    return initial
+
+# This program will ask for someone's name and return the initials
+first_name = input('Enter your first name: ')
+# Call get_initial to retrieve initial of name
+first_name_initial = get_initial(first_name)
+
+middle_name = input('Enter your middle name: ')
+# Call get_initial to retrieve initial of name
+middle_name_initial = get_initial(middle_name)
+
+last_name = input('Enter your last name: ')
+# Call get_initial to retrieve initial of name
+last_name_initial = get_initial(last_name)
+
+print('Your initials are: ' + first_name_initial \
+    + middle_name_initial + last_name_initial)

13 - Functions/get_initials.py

@@ -0,0 +1,13 @@
+# Ask for a name and return the initials
+first_name = input('Enter your first name: ')
+first_name_initial = first_name[0:1]
+
+middle_name = input('Enter your middle name: ')
+middle_name_initial = middle_name[0:1]
+
+last_name = input('Enter your last name: ')
+last_name_initial = last_name[0:1]
+
+print('Your initials are: ' + first_name_initial \
+	+ middle_name_initial + last_name_initial)
+