Chad Dombrova chadrik

chadrik / abstract_types_for_immutability1.py

Last active February 25, 2022 05:30

Practical Guide to Python Static Typing

	from functools import lru_cache

	@lru_cache(None)
	def getvalue() -> List[Set[int]]:
	return [{1, 2}, {3}]

	x = getvalue()
	x.append({4})

	y = getvalue()

chadrik / beam_custom_window.py

Last active June 2, 2019 04:11

Custom beam WindowFn

	from __future__ import absolute_import, print_function

	import logging
	import datetime

	from google.protobuf import duration_pb2

	from apache_beam.coders import coders
	from apache_beam.portability import common_urns
	from apache_beam.portability.api import standard_window_fns_pb2

chadrik / aysncio_gevent_coexist.py

Last active March 13, 2020 03:15

	"""
	Demo of a bunch of asyncio + gevent scenarios using aiogevent.

	These are not tests in the sense that there are no assertions, but pytest
	is a nice way to run them in bulk or choose a specific "test"

	Run like this:

	python3 -m pytest test_coexist.py -s -v

chadrik / runtime_typing.py

Last active August 8, 2017 22:49

	from __future__ import absolute_import, print_function
	from typing import Generic

	# MRO code adapted from https://gist.github.com/pendulm/2271366

	def head(l):
	return l[0]


	def tail(l):

chadrik / sqlalchemy_after_flush_issue.py

Last active August 29, 2015 14:05

sqlalchemy_after_flush_issue.py

	import sqlalchemy
	from sqlalchemy import event
	from sqlalchemy.ext.declarative import declarative_base
	from sqlalchemy import create_engine, Table, Column, Integer, String, ForeignKey
	from sqlalchemy.orm import sessionmaker, scoped_session, relationship, backref
	import datetime

	Base = declarative_base()
	engine = create_engine('sqlite://', echo=False)
	Session = scoped_session(sessionmaker(bind=engine))

chadrik / sqlalchemy_after_flush.py

Last active August 29, 2015 14:05

exploring usage of after_flush

	import sqlalchemy
	from sqlalchemy import event
	from sqlalchemy.ext.declarative import declarative_base
	from sqlalchemy import create_engine, Table, Column, Integer, String, ForeignKey
	from sqlalchemy.orm import sessionmaker, scoped_session, relationship, backref
	import datetime

	Base = declarative_base()
	engine = create_engine('sqlite://', echo=False)
	Session = scoped_session(sessionmaker(bind=engine))

chadrik / sqlbooks.py

Last active August 29, 2015 14:04

demo of non-deterministic event ordering

	import sqlalchemy
	from sqlalchemy import event
	from sqlalchemy.ext.declarative import declarative_base
	from sqlalchemy import create_engine, Table, Column, Integer, String, ForeignKey
	from sqlalchemy.orm import sessionmaker, scoped_session, relationship, backref

	import datetime

	Base = declarative_base()

chadrik / foo.py

Created August 1, 2013 16:37

testing gist gem

	print "top foo"

	f = open("/Volumes/newhome/chad/python/multiproc.py", 'r')
	exec f