Control Flow
Python syntax guide
Conditional statements and loops in Python
Control Flow
Conditional statements and loops in Python
# Conditional statements
age = 25
if age < 18:
print("Minor")
elif age < 65:
print("Adult")
else:
print("Senior")
# Ternary operator
status = "Adult" if age >= 18 else "Minor"
# For loops
fruits = ["apple", "banana", "cherry"]
for fruit in fruits:
print(fruit)
# Range-based loop
for i in range(5):
print(i) # 0, 1, 2, 3, 4
# Enumerate for index and value
for index, fruit in enumerate(fruits):
print(f"{index}: {fruit}")
# While loop
count = 0
while count < 5:
print(count)
count += 1
# List comprehensions
squares = [x**2 for x in range(10)]
even_squares = [x**2 for x in range(10) if x % 2 == 0]
# Dictionary comprehension
squares_dict = {x: x**2 for x in range(5)}
print(squares_dict) # {0: 0, 1: 1, 2: 4, 3: 9, 4: 16}
Explanation
Common Use Cases
- Conditional logic
- Iterating over collections
- Data transformation
- Filtering data
Related Python Syntax
Variables & Data Types
Python variables and data types
Functions & Generators
Function definitions and generator functions in Python
Classes & OOP
Object-oriented programming with classes in Python
Modules & Packages
Importing and organizing code with modules and packages
Exception Handling
Error handling with try/except blocks in Python
Master Control Flow in Python
Understanding control flow is fundamental to writing clean and efficient Python code. This comprehensive guide provides you with practical examples and detailed explanations to help you master this important concept.
Whether you're a beginner learning the basics or an experienced developer looking to refresh your knowledge, our examples cover real-world scenarios and best practices for using control flow effectively in your Python projects.
Key Takeaways
- Conditional logic
- Iterating over collections
- Data transformation