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Python · BeginnerSnippet

Conditional Logic

If-statements allow your code to make decisions. The elif (else if) and else clauses provide alternative paths based on different conditions.

snippet.py

python

score = 85
if score >= 90:
    print("Excellent!")
elif score >= 70:
    print("Good job!")
else:
    print("Keep practicing!")

controlflow

Python · BeginnerSnippet

Basic Exception Handling

Exception handling prevents your program from crashing when errors occur. The try block contains code that might fail, while the except block handles the error.

snippet.py

python

try:
    number = int("abc")
except ValueError:
    print("That is not a valid number!")

errorhandling

Python · BeginnerSnippet

Defining Functions

Functions are reusable blocks of code. They can take inputs (parameters) and return a result using the return keyword.

snippet.py

python

def calculate_area(width, height):
    return width * height
 
result = calculate_area(5, 10)
print(f"Area: {result}")

functions

Python · BeginnerSnippet

List Operations

Lists are ordered collections of items. You can add items using the .append() method and access them using their zero-based index.

snippet.py

python

tools = ["IDE", "Terminal"]
tools.append("Debugger")
first_tool = tools[0]
print(f"Using: {first_tool}")

datatypesarrays

Python · BeginnerSnippet

Variable Assignment and f-Strings

In Python, variables are created by assigning a value. f-strings (formatted string literals) allow you to embed variables directly inside strings using curly braces.

snippet.py

python

name = "Python"
version = 3.12
print(f"Welcome to {name} version {version}!")

syntaxdatatypes

Python · BeginnerSnippet

Python Dictionaries

Dictionaries store data in key-value pairs, allowing you to look up information using a specific label instead of an index.

snippet.py

python

user_data = {"username": "dev_pro", "level": 10}

syntaxdatatypes

Python · BeginnerSnippet

The While Loop

A while loop repeatedly executes a block of code as long as a specified condition remains true.

snippet.py

python

counter = 0
while counter < 3:
    print(counter)
    counter += 1

syntaxcontrolflow

Python · BeginnerSnippet

Importing Modules

The import statement allows you to use code from external libraries or modules, such as the built-in math module for calculations.

snippet.py

python

import math
result = math.sqrt(16)
print(result)

syntaxbestpractices