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@paveltyavin
paveltyavin / geohash_list.py
Last active August 16, 2017 13:00
converts polygon to list of geohashes. You can specify precision and tile policy. Different interpretations of geohashes in output.
"""find geohashes inside polygon"""
from __future__ import division
__base32 = '0123456789bcdefghjkmnpqrstuvwxyz'
precision = 8
geohash_corners_inside_polygon_policy = any # or all
def geohash(lon, lat):
result_str = []
@paveltyavin
paveltyavin / gist:0614d34632a14392abbf2eef61117505
Created February 27, 2017 21:12
from PIL import Image
from PIL import ImageDraw
from math import tanh
import random
Size = 512
im = Image.new("RGB", (Size, Size), "#fff")
draw = ImageDraw.Draw(im)
@paveltyavin
paveltyavin / b_test.go
Last active January 19, 2018 06:23
// go test -run none -bench .
package b
import (
"math/rand"
"sort"
"testing"
)
const M = 8192
@paveltyavin
paveltyavin / benchmark.md
Last active June 7, 2016 20:05
typedict vs schematics benchmark 
typeddict_test       1.759s        372 Kb
schematics_test 2.0  3.188s        152 Kb
schematics_test 1.1  3.339s         96 Kb
@paveltyavin
paveltyavin / command.py
Created June 7, 2016 16:37
update bunch of django models using naive implemetation, multiprocessing, multithreading in postgres and sqlite
# coding: utf-8
import threading
import time
import random
import string
from django.db import connection
from multiprocessing import Pool
from django.core.management.base import BaseCommand
@paveltyavin
paveltyavin / test.py
Created May 29, 2016 20:41
python hash tables chaining experiment
import time
import math
N = 1000 # any number greater than 1000
class B(object):
"""
Hash always returns the same value.
Then any hash table based on instances of this class will always contain one chain.
@paveltyavin
paveltyavin / django common passwords
Created May 9, 2016 16:50
password
123456
12345678
1234
qwerty
12345
dragon
pussy
baseball
football
@paveltyavin
paveltyavin / base.coffee
Created February 12, 2016 01:29
module.exports = class Base
edge: (which) ->
if which == 'start'
return 'left'
else if which == 'end'
return 'right'
throw new TypeError('What kind of an edge is ' + which)
edgeProp: (edge, prop) ->
o = @$el[prop]()
o[@edge(edge)]
@paveltyavin
paveltyavin / views.py
Created December 28, 2015 15:49
наследование
class Mixin(object):
def get_queryset(self):
raise self.get_object().products.all()
class WrongListView(ListCreateAPIView, Mixin):
pass
class RightListView(Mixin, ListCreateAPIView):
@paveltyavin
paveltyavin / gist:9be522fe941e216ab929
Last active August 29, 2015 14:18
class ShopTest(TestCase):
def setUp(self):
self.network = Network.objects.create()
self.region1 = Region.objects.create()
self.region2 = Region.objects.create()
self.city1 = City.objects.create(region=self.region1)
self.city2 = City.objects.create(region=self.region2)
self.shop1 = Shop.objects.create(
code='0001',
cluster=Cluster.objects.create(),