Introduction

So for this session
what we are going to be doing is
we are going to be checking out for variables, data types, and operators.

now let us go back to our VS code and alright
um I’m going to show you how to actually declare variables in Python.
this is our second second session.

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Variables in Python

Declaring variables

so let’s say for example
you want to actually give maybe your name

• this is a string variable.

now let me say I also want to call my age as a variable

• this is a number (integer) variable.

now the next thing is
I also want to call maybe a float variable

• this is a float variable.

now let’s take for example I also want to call a boolean type of variable

• this is a boolean variable (True/False).

👉 in everything you’ve seen here, we used the assignment operator (=).

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Data Types in Python

Python automatically detects data types.
let me show you the types:

1. Integer

2. Float

3. String

👉 anything inside quotation marks (single or double) is a string.

4. Dictionary

• comes in pairs (key: value).

• uses curly braces { }.

• multi-dimensional, like JavaScript objects.

5. List

• a single dimensional array.

• uses square brackets [ ].

6. Tuple

• also a single dimensional array.

• uses normal brackets ( ).

7. Set

• uses curly braces { }, but no pairs.

• stores unique items.

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Operators in Python

operators are categorized into groups.

1. Assignment Operator

👉 = assigns values.

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2. Arithmetic Operators

• Addition

• Subtraction

• Multiplication

• Division

• Floor Division

• Modulus

• Exponent

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3. Comparison Operators

• Greater than

• Less than

• Equal to

• Greater or equal

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4. Logical Operators

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Recap

in this section, we learned:

• how to declare variables using the assignment operator.

• the data types in Python: int, float, string, dictionary, list, tuple, set.

• the operators: assignment, arithmetic, comparison, and logical.

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Next Lesson

the next session (Lesson 3) will be on Control Flow:

• conditional statements (if, else, elif)

• loops.

see you in the next session.