vladiibine

# It will be slightly harder to create multiple instances of this class

class S:
    def __init__(self, arg1, arg2):
        # Dummy method. Used for reflection only
        pass

    @classmethod
    def get_instance(cls, arg1, arg2):
        # Dummy method. Used for reflection only

vladiibine

def algorithmic_chance_men_in_group(pop_size, sample_size, num_men): 
    """Used to estimate the odds of selecting `num_men` men out of
    a population of size `pop_size`, when taing a sample of size 
    `sample_size`
    
    Usage:
    >>> chance_as_percent = algorithmic_chance_men_in_group(30000, 1000, 600)[0]
    """
    # assuming that 50% of the pop is men 
    numerator = 1 

vladiibine

"""
Examples of usage of the twisted library
"""
from datetime import timedelta, datetime

# Step 1:
#  create a server that each time it receives a http request, it will return "hello"

from twisted.web import server, resource
from twisted.internet import reactor

vladiibine

import copy
import unittest


class Node:
    __slots__ = ["count", "next"]

    def __init__(self, count, next_):
        self.count = count
        self.next = next_

vladiibine

var print = function( o, maxLevel, level )
{
    if ( typeof level == "undefined" )
    {
        level = 0;
    }
    if ( typeof maxlevel == "undefined" )
    {
        maxLevel = 0;
    }

vladiibine

# List all the console_scripts entry points in the given distribution, or all distributions if None

def list_entry_points(desired_distribution=None):
  all_entry_maps = {}
  
  for key, distribution in pkg_resources.working_set.by_key.items():
      if desired_distribution and distribution.key != desired_distribution:
          continue
          
      distribution_entrypoints = distribution.get_entry_map()

vladiibine

#Get help here http://www.sysdig.org/wiki/sysdig-user-guide/

Show every time a file is opened under /etc.

sudo sysdig evt.type=open and fd.name contains /etc

Sysdig output format

*%evt.num %evt.time %evt.cpu %proc.name (%thread.tid) %evt.dir %evt.type %evt.args

vladiibine

Swapping the django user model during the lifecycle of a project (django 1.8 guide)

I've come to a point where I had to swap django's user model with a custom one, at a point when I already had users, and already had apps depending on the model. Therefore this guide is trying to provide the support that is not found in the django docs.

Django warns that this should only be done basically at the start of a project, so that the initial migration of an app includes the creation of the custom user model. It took a while to do, and I ran into problems created by the already existing relations between other models and auth.User.

There were good and not so good things regarding my project state, that influenced the difficulty of the job.

Things that made the swap simpler

1. My custom user also had an id field, that's just a usual default django id