Python workshop

• pep8
• metaprogramming
• variable unpacking
• try, execpt, else
• context manager
• extend import functionality
• decorator
• Saving Memory with __slots__
• Controlling What Can Be Imported and What Not with 'all'
• Comparison Operators the Easy Way with functools.total_oredering
• Sliceable
• namedtuple
• logging
• requests
• click or argparser
• defaultdict
• comprehensions
• sum, min, max, any, all
• descriptors

Context manager

class Connection:
    def __init__(self):
        ...

    def __enter__(self):
        # Initialize connection...

    def __exit__(self, type, value, traceback):
        # Close connection...

with Connection() as c:
    # __enter__() executes
    ...
    # conn.__exit__() executes

from contextlib import contextmanager

@contextmanager
def tag(name):
    print(f"<{name}>")
    yield
    print(f"</{name}>")

with tag("h1"):
    print("This is Title.")