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from functools import wraps


def side_effect(callback, before=True, after=False):
    """A decorator.

    Wraps the decorated function. The callback will be called before and after each
    call of the decorated function according to the parameters.

    Args:

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# Source:
# https://forum.sublimetext.com/t/retrieving-inserted-and-deleted-text/18697/24

import sublime
import sublime_plugin


def get_cursors(view):
    # can't use `view.sel()[:]` because it gives an error `TypeError: an integer is required`
    return [cursor for cursor in view.sel()]

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# install Jupyter Notebook into system site-packages
pip install -U notebook

# create a virtualenv and use the Jupyter from the system site-packages
mkvirtualenv --system-site-packages myvenv
# the virtualenv is now activated
pip install ipykernel
VM_NAME=myvm python -m ipykernel install --user --name $VM_NAME --display-name $VM_NAME
python -m jupyter notebook
# In the browser: New -> select kernel "myvm"

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import signal

def set_run_timeout(timeout):
    """Set maximum execution time of the current Python process"""
    def alarm(*_):
        raise SystemExit("Timed out!")
    signal.signal(signal.SIGALRM, alarm)
    signal.alarm(timeout)

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#!/usr/bin/env bash

cat <<EE > app.lua

box.cfg {
    listen = 3301,
    read_only = false,
    wal_mode = "write",
    replication = {"t1:3301", "t2:3301"},
}

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import itertools
import functools

class It:
    """A handy iterator with method chaining.
    
    >>> It([1, 2, 3]).map(lambda x: x**2).filter(lambda x: x<5).chain_after('abc').apply(list)
    ['a', 'b', 'c', 1, 4]
    
    """

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from collections import deque
from functools import partial, wraps


class Deferred:
    """
    Deferred functions execution.

    Usage:

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Python 3.7.0 (default, Jun 29 2018, 09:12:54)
[GCC 4.9.2] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import asyncio, asynctnt
>>> asyncio.run(asynctnt.Connection(host='aa', port=1234).connect())
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python3.7/asyncio/runners.py", line 43, in run
    return loop.run_until_complete(main)
  File "/usr/local/lib/python3.7/asyncio/base_events.py", line 568, in run_until_complete

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How to reproduce?

$ docker network create n1

first instance

$ docker run --rm -it --name t1 --net n1  -e TARANTOOL_REPLICATION=t1:3301,t2:3301 progaudi/tarantool:1.10.1-135-g193ef4150