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Leonid Shvechikov shvechikov

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View matrix-rotation-algo-layers.py
def print_matrix(matrix):
for line in matrix:
print(' '.join(map(str, line)))
def empty(n, m):
matrix = []
for i in range(m):
matrix.append(['.'] * n)
return matrix
View matrix-rotation-algo.py
#!/bin/python3
def get_direction(n, m, x, y):
if y == 0 and x != n - 1:
return '>', n-x-1
if y == m - 1 and x != 0:
return '<', x
if x == 0:
return '^', y
if x == n - 1:
@shvechikov
shvechikov / timed_code.py
Created Jul 9, 2018 — forked from lericson/timed_code.py
Python Timer Class - Context Manager for Timing Code Blocks
View timed_code.py
import logging
from contextlib import contextmanager
from timeit import default_timer
time_logger = logging.getLogger(__package__ + ".timer")
@contextmanager
def timed_code(name=None):
next_unit = iter(("s", "ms", "ns", "us")).next
msg = "section %s took" % (name,) if name else "section took"
@shvechikov
shvechikov / README.md
Last active Jul 20, 2018 — forked from snehesht/Concurrent HTTP Requests with Python3 and asyncio
Concurrent HTTP Requests with Python3 and asyncio
View README.md

Concurrent HTTP Requests with Python3 and asyncio

http://geekgirl.io/concurrent-http-requests-with-python3-and-asyncio/

My friend who is a data scientist had wipped up a script that made lots (over 27K) of queries to the Google Places API. The problem was that it was synchronous and thus took over 2.5 hours to complete.

Given that I'm currently attending Hacker School and get to spend all day working on any coding problems that interests me, I decided to go about trying to optimise it.

I'm new to Python so had to do a bit of groundwork first to determine which course of action was best.

View mongo_auth_middleware.py
"""
This module is no more needed. It could be useful for implementing Django-level authentication.
Now it works using DRF-level authentication -- dating.apps.mongo_auth.authentication.MongoTokenAuthentication.
So it's here JFYI.
"""
# from django.contrib import auth
from django.utils.functional import SimpleLazyObject
from .models import User, AnonymousUser
@shvechikov
shvechikov / signed_s3_upload.py
Created Apr 28, 2016
Upload files to S3 using generated signed URLs
View signed_s3_upload.py
import requests
from boto.s3.connection import S3Connection
c = S3Connection(AWS_ACCESS_KEY, AWS_SECRET_KET)
data = 'file content'
filename = 'dir/name.txt'
bucket_name = 'your-bucket-name'
headers = {'Content-Type': 'text/plain'}
View find_best_subarray.py
def find_best_subarray(array):
best_sum = 0
best_start = 0
best_end = 0
cur_sum = 0
cur_start = 0
cur_end = 0
for i, x in enumerate(array):
View preview_decorator.py
def add_preview_for(*fields):
"""
This is a decorator for model classes that adds preview methods.
So instead of manually adding preview methods:
>>> class Student(models.Model):
... photo = models.ImageField()
... icon = models.ImageField()
...
View tmux_cheatsheet.markdown

tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name:

View json_editor_debug.log
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