1. Python: Getting Started

Objective: By the end of this lesson, learners will be able to perform basic Python operations, work with data types, lists, dictionaries, and loops, and understand JSON structures for data handling.

1. Introduction to Python Operations

Topics Covered:

• Basic arithmetic: +, -, *, /, ** (exponents), % (modulo).

• Order of operations (PEMDAS/Parentheses priority).

2. Python Data Types

Key Concepts:

• Boolean (bool): True/False (e.g., 10 > 9).

• String (str): Text in quotes ("Hello").

• Numeric:

  • int (whole numbers), float (decimals), complex (imaginary).

• Sequences:

  • Lists: Ordered, mutable, duplicates allowed ([1, "a", 3.5]).

  • Tuples: Ordered, immutable ((1, "a")).

  • Sets: Unordered, no duplicates ({1, 2}).

• Dictionaries (dict): Key-value pairs ({"key": "value"}).

• Binary: Non-human-readable data (e.g., bytes).

Activity:

• Identify data types in given examples (e.g., type(123)).

3. Working with Lists

Skills Practiced:

• Creating lists: price_usd = [100, 200, 300].

• Accessing items: Indexing (price_usd[0]) and negative indexing (price_usd[-1]).

• Modifying lists: append() to add items.

• Aggregations: sum(), len(), and calculating averages.

• Zipping lists: Combine two lists into pairs (zip(list1, list2)).

Activity:

• Create a list of areas, append a value, and calculate the total/average.

4. For Loops

Key Concepts:

• Iterate over lists:

• Indentation is critical for loop blocks.

Activity:

• Print each item in a list of property types.

5. Dictionaries

Skills Practiced:

• Creating dictionaries: {"key": "value"}.

• Accessing values: dict["key"] or dict.get("key").

• Retrieving keys: dict.keys().

Activity:

• Create a dictionary for a property and print its keys/values.

6. Introduction to JSON

Key Concepts:

• JSON = JavaScript Object Notation (key-value pairs).

• Used for data storage/transport (similar to Python dictionaries.

Activity:

• Compare Python dictionaries vs. JSON structures.

7. Summary & Practice

Review:

• Math operations, data types, lists, loops, dictionaries, JSON.
  Further Reading:

• Links to Python docs (provided in original content).

Final Challenge:

• Combine concepts:

  1. Create a list of property dictionaries.

  2. Use a loop to print each property’s details.

  3. Calculate the average price.

Access the whole lesson here:  Python: Getting Started.