This is a small how-to collection of basic Python code snippets. The code follows the lecture series by CSC course "Python programming" (fall 2015) by S. Lebedev (https://compscicenter.ru/courses/python/2015-autumn/classes/)

Content:

Lecture 2.

• Minimum function and fabric pattern
• Local, nonlocal and global objects
• Unpacking
• Functional aspects

Lecture 3. Decorators and functools

• Decorator examples
• Decorator with positional and kw-only arguments
• Functools module: lru_cache, single_dispatch

Lecture 5. Collections

• Tuples and Namedtuples
• Lists and deque
• Dicts, DefaultDicts, OrderedDicts
• Counters

Lecture 6. Classes (Part 1)

• Useful class decorators (singleton, deprecated)
• Mixin classes
• Magic methods

Lecture 7. Exceptions and Context managers

• Exceptions basic: try / except / else / finally
• Context Managers
• contextlib

Lecture 8. Iterators, generators and contextlibs

• Iterators, binary tree
• Generators: yield, send, throw, yield from, return
• Generators as iterators, coroutines, compact context managers
• itertools

Lecture 10. Classes (Part 2)

• Descriptors: get, set, delete
• Data and non-data descriptors, cached_property
• property, staticmethod and classmethod
• Metaclasses, new
• ABC and abstractmethod, collections.abc