Denis Otkidach ods

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ods / maybe_raises.py

Created August 11, 2022 11:54

pytest.raises() variation accepting None for cases when no exception is expected

	from contextlib import nullcontext
	from typing import ContextManager, Optional, Union

	import pytest


	def maybe_raises(
	exception: Union[type[BaseException], tuple[type[BaseException], ...]]
	) -> ContextManager[Optional[pytest.ExceptionInfo[BaseException]]]:
	if exception is None:

ods / exit_stack.py

Created October 15, 2020 08:56

	import asyncio
	from contextlib import AsyncExitStack, ExitStack
	import contextvars
	import functools
	import inspect
	import sys


	__all__ = ['exit_stack']

ods / debug_and_sync_code_in_executor.py

Last active October 11, 2018 06:41

	import time, asyncio, hashlib


	def sync_cpu_bound():
	s = bytes(range(256))
	for i in range(100000):
	hashlib.sha256(s)

	start = time.time()
	sync_cpu_bound()

ods / bench_asyncio_lock.py

Created September 27, 2018 12:43

Benchmark for PR to serialize execution of SQL in asyncpg: https://github.com/MagicStack/asyncpg/pull/367

	"""
	Benchmark for PR to serialize execution of SQL in asyncpg.
	See: https://github.com/MagicStack/asyncpg/pull/367
	"""

	import asyncio
	from asyncio import Lock


	class _Atomic:

ods / sa_doc_link_blocks.py

Last active August 29, 2015 14:06

Bug in SQLAlchemy: None assigned to relationship is not stored to DB

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


	Base = declarative_base()


	class DocLink(Base):
	__tablename__ = 'DocLink'

ods / gist:4459e5e630ccec2ba6b3

Last active August 29, 2015 14:06

	from sqlalchemy import Column, Integer, ForeignKey
	from sqlalchemy.orm import relationship
	from sqlalchemy.ext.declarative import declarative_base

	Base = declarative_base()

	class Link(Base):
	__tablename__ = 'Link'
	id = Column(Integer, primary_key=True)
	doc_id = Column(Integer, ForeignKey('Doc.id'), nullable=False)

ods / gist:5e3b19f0346e9e354451

Last active August 29, 2015 14:01

	import sphinx_xmlpipe2

	pipe = sphinx_xmlpipe2.Pipe(
	fields = ['title', 'description', 'body'],
	attrs = [sphinx_xmlpipe2.Timestamp('date'), sphinx_xmlpipe2.Int8('type')],
	)

	with pipe:
	for doc in docs:
	pipe.add(

ods / private_ordered_relation.py

Last active August 29, 2015 13:57

	from sqlalchemy.ext.declarative import declarative_base
	from sqlalchemy import Column, Integer, String, ForeignKey, create_engine
	from sqlalchemy.orm import sessionmaker, relationship
	from sqlalchemy.ext.orderinglist import ordering_list

	Base = declarative_base()


	class Parent(Base):
	__tablename__ = 'parents'

ods / test2.py

Last active January 1, 2016 07:19 — forked from anonymous/test2.py

	registry = Registry()

	ReplicatedModel = registry.multidb(
	admin=AdminBase,
	front=FrontBase,
	)


	@registry.model(ReplicatedModel)
	def Media(models):

ods / sa_merge_m2m_backref.py

Last active December 24, 2015 12:09

This schema fails as well as relationship definitions on both side with back_populates. Relationship definitions on both side without back_populates work fine. Exception is: sqlalchemy.orm.exc.FlushError: New instance <B at 0x2135e90> with identity key (<class '__main__.B'>, (1,)) conflicts with persistent instance <B at 0x212d850> Commenting th…

	from sqlalchemy.ext.declarative import declarative_base
	from sqlalchemy import Column, Integer, ForeignKey, create_engine
	from sqlalchemy.orm import sessionmaker, Session, relationship

	Base = declarative_base()


	class AB(Base):
	__tablename__ = 'AB'
	a_id = Column(ForeignKey('A.id'), primary_key=True)

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