Added starter files

Author: bradtraversy

.gitignore

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+__pycache__
+.vscode
+.DS_Store

python_sandbox_starter/classes.py

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+# A class is like a blueprint for creating objects. An object has properties and methods(functions) associated with it. Almost everything in Python is an object
+

python_sandbox_starter/conditionals.py

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+# If/ Else conditions are used to decide to do something based on something being true or false
+
+
+
+# Comparison Operators (==, !=, >, <, >=, <=) - Used to compare values
+
+
+
+# Logical operators (and, or, not) - Used to combine conditional statements
+
+
+
+
+# Membership Operators (not, not in) - Membership operators are used to test if a sequence is presented in an object
+
+
+
+
+# Identity Operators (is, is not) - Compare the objects, not if they are equal, but if they are actually the same object, with the same memory location:

python_sandbox_starter/dictionaries.py

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+# A Dictionary is a collection which is unordered, changeable and indexed. No duplicate members.

python_sandbox_starter/files.py

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+# Python has functions for creating, reading, updating, and deleting files.

python_sandbox_starter/functions.py

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+# A function is a block of code which only runs when it is called. In Python, we do not use parentheses and curly brackets, we use indentation with tabs or spaces
+
+
+
+# A lambda function is a small anonymous function.
+# A lambda function can take any number of arguments, but can only have one expression. Very similar to JS arrow functions
+

python_sandbox_starter/lists.py

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+# A List is a collection which is ordered and changeable. Allows duplicate members.

python_sandbox_starter/loops.py

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+# A for loop is used for iterating over a sequence (that is either a list, a tuple, a dictionary, a set, or a string).
+
+
+
+# While loops execute a set of statements as long as a condition is true.

python_sandbox_starter/modules.py

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+# A module is basically a file containing a set of functions to include in your application. There are core python modules, modules you can install using the pip package manager (including Django) as well as custom modules

python_sandbox_starter/py_json.py

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+# JSON is commonly used with data APIS. Here how we can parse JSON into a Python dictionary

python_sandbox_starter/strings.py

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+# Strings in python are surrounded by either single or double quotation marks. Let's look at string formatting and some string methods
+
+
+# String Formatting
+
+# String Methods

python_sandbox_starter/tuples_sets.py

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+# A Tuple is a collection which is ordered and unchangeable. Allows duplicate members.
+ 
+
+
+# A Set is a collection which is unordered and unindexed. No duplicate members.

python_sandbox_starter/validator.py

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+# Example of a custom module to be imported
+
+import re
+
+
+def validate_email(email):
+    if len(email) > 7:
+        return bool(re.match("^.+@(\[?)[a-zA-Z0-9-.]+.([a-zA-Z]{2,3}|[0-9]{1,3})(]?)$", email))

python_sandbox_starter/variables.py

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+# A variable is a container for a value, which can be of various types
+
+'''
+This is a 
+multiline comment
+or docstring (used to define a functions purpose)
+can be single or double quotes
+'''
+
+"""
+VARIABLE RULES:
+  - Variable names are case sensitive (name and NAME are different variables)
+  - Must start with a letter or an underscore
+  - Can have numbers but can not start with one
+"""