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#!/bin/sh
for i in $(seq 10); do
    seq $(((i-1)*100)) $((i*100)) >$i
done

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#!/usr/bin/env python3

def f():
    for _ in range(1000**2):
        pass


import time
t0 = time.time()
f()

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#!/bin/sh
DUMP_FILE="dump"
while inotifywait -e modify,attrib $DUMP_FILE; do
    while lsof $DUMP_FILE; do
        echo "waiting..." && sleep 1
    done
    cp $DUMP_FILE $DUMP_FILE.$(date "+%Y-%m-%d--%T")
done

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import datetime
import random
import time

import tornado.ioloop
import tornado.web

TIME = "%Y-%m-%d %H:%M:%S"

# patch

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class Dict(dict):
    def __missing__(self, k):
        return k

namespace = Dict()

eval("{a:1, b:c, 3:3, _:4}", None, namespace)

# T_T... I'm too late, see library/stdtypes.html#str.format_map
>>> class Default(dict):

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import os
import os.path

def walk(directory, dir_filter=None, file_filter=None):
    """return a list of all files in this directory, sorted"""
    all_files = []
    for root, dirs, files in os.walk(directory):
        dirs[:] = sorted(filter(dir_filter, dirs))
        all_files.extend(map(lambda f: os.path.abspath(os.path.join(root, f)),
                         sorted(filter(file_filter, files))))

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def list_all_same_type(type_conv):
    def conv(v):
        return [conv(i) for i in v] if isinstance(v, list) else type_conv(v)
    return conv

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eval_orig = eval

def patch_eval():
    if eval is not eval_orig:
        return False

    from functools import lru_cache
    c = lru_cache(maxsize=1000)(compile)
    e = eval_orig

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a, b, *c = 1,2,3,4,5
*a, b = 1,2,3,4
a, *b, c = 1,2,3,4,5

[i for i, *_ in [[0], [1, 2], [3, 4, 5]]]

lst = [(0,), (1,), (2,), (3,), (4,), (5,), (6,), (7,), (8,), (9,)]
assert [i for i, in lst] ==  [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]

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create table users(
    id integer primary key,
    zone integer not null,
    user text not null,
    name text not null,
    password text default '',
    born real default 0.0,
    ban real default 0.0,
    login real default 0.0,
    logout real default 0.0,