Can you describe the main features and advantages of using lambda functions?

Lambda functions in Python are anonymous functions defined using the lambda keyword. They allow creating small functions in a single line, which is convenient for brief operations.

Main features and advantages:

• Conciseness: enable writing functions without explicit def declaration.
• Use as arguments: often used to pass functions to other functions (e.g., in map, filter, sorted).
• Convenience for simple operations: suitable for simple expressions where multi-line code is not required.

Example:

# Sorting a list of tuples by the second element
pairs = [(1, 'one'), (2, 'two'), (3, 'three')]
sorted_pairs = sorted(pairs, key=lambda x: x[1])
print(sorted_pairs)  # [(1, 'one'), (3, 'three'), (2, 'two')]

However, for complex logic, it is better to use regular functions with def.