jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

dnfehren

#get rid of anything from a mis-installed version
sudo apt-get --purge remove postgres*
sudo rm -rf /var/lib/postgresql
sudo deluser -remove-all-files postgres

#install the packages
sudo apt-get install postgresql-9.1
sudo apt-get install pgadmin3 phppgadmin

#shutdown postgres database server

postrational

#!/bin/bash

NAME="hello_app"                                  # Name of the application
DJANGODIR=/webapps/hello_django/hello             # Django project directory
SOCKFILE=/webapps/hello_django/run/gunicorn.sock  # we will communicte using this unix socket
USER=hello                                        # the user to run as
GROUP=webapps                                     # the group to run as
NUM_WORKERS=3                                     # how many worker processes should Gunicorn spawn
DJANGO_SETTINGS_MODULE=hello.settings             # which settings file should Django use
DJANGO_WSGI_MODULE=hello.wsgi                     # WSGI module name

sloria

The Best of the Best Practices (BOBP) Guide for Python

A "Best of the Best Practices" (BOBP) guide to developing in Python.

In General

Values

• "Build tools for others that you want to be built for you." - Kenneth Reitz
• "Simplicity is alway better than functionality." - Pieter Hintjens

hest

def get_count(q):
    count_q = q.statement.with_only_columns([func.count()]).order_by(None)
    count = q.session.execute(count_q).scalar()
    return count

q = session.query(TestModel).filter(...).order_by(...)

# Slow: SELECT COUNT(*) FROM (SELECT ... FROM TestModel WHERE ...) ...
print q.count()

singingwolfboy

# Want to run your Flask tests with CSRF protections turned on, to make sure
# that CSRF works properly in production as well? Here's an excellent way
# to do it!

# First some imports. I'm assuming you're using Flask-WTF for CSRF protection.
import flask
from flask.testing import FlaskClient as BaseFlaskClient
from flask_wtf.csrf import generate_csrf

# Flask's assumptions about an incoming request don't quite match up with

kozo2

doaa-altarawy

# For more configuration details:
# https://docs.codecov.io/docs/codecov-yaml

# Check if this file is valid by running in bash:
# curl -X POST --data-binary @.codecov.yml https://codecov.io/validate

# Coverage configuration
# ----------------------
coverage:
  status:

doaa-altarawy

language: python

# turn off sudo
sudo: false

# python versions to be tested
matrix:
  include:
    - python: 2.7
    - python: 3.5

doaa-altarawy

import setuptools

if __name__ == "__main__":
    setuptools.setup(
        name='RTP_python_template',
        version="0.3.0",
        description='A starting template for Python programs',
        author='Doaa Altarawy',
        author_email='[email protected]',
        url="https://github.com/doaa-altarawy/RTP_python_template",