lsbardel

class LazyChoiceField(forms.ChoiceField):
    '''
    A Lazy ChoiceField.
    This ChoiceField does not unwind choices until a deepcopy is called on it.
    This allows for dynamic choices generation every time an instance of a Form is created.
    '''
    def __init__(self, *args, **kwargs):
        # remove choices from kwargs.
        # choices should be an iterable
        self._lazy_choices = kwargs.pop('choices',())

ericflo

"""
jQuery templates use constructs like:

    {{if condition}} print something{{/if}}

This, of course, completely screws up Django templates,
because Django thinks {{ and }} mean something.

Wrap {% verbatim %} and {% endverbatim %} around those
blocks of jQuery templates and this will try its best

waynemoore

import datetime

# requires python-dateutil (http://labix.org/python-dateutil)
from dateutil.relativedelta import relativedelta

def get_month_day_range(date):
    """
    For a date 'date' returns the start and end date for the month of 'date'.

    Month with 31 days:

rgreenjr

-- show running queries (pre 9.2)
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query 
FROM pg_stat_activity 
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%' 
ORDER BY query_start desc;

-- show running queries (9.2)
SELECT pid, age(clock_timestamp(), query_start), usename, query 
FROM pg_stat_activity 
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%' 

guillaumepiot

var myApp = angular.module('myApp').config(function($httpProvider) {
    $httpProvider.defaults.headers.post['X-CSRFToken'] = $('input[name=csrfmiddlewaretoken]').val();
});

jtdp

git diff -p \
    | grep -E '^(diff|old mode|new mode)' \
    | sed -e 's/^old/NEW/;s/^new/old/;s/^NEW/new/' \
    | git apply

maxim

- name: ensure github.com is a known host
  lineinfile:
    dest: /root/.ssh/known_hosts
    create: yes
    state: present
    line: "{{ lookup('pipe', 'ssh-keyscan -t rsa github.com') }}"
    regexp: "^github\\.com"

michaelBenin

requirements_file = 'base.pip'

requirements = open(requirements_file, 'r')
content = requirements.read().splitlines()
content = list(set(content))
content.sort(key=lambda y: y.lower())
content = '\n'.join(content)

file = open('sorted_'+requirements_file, 'w')
file.write(content)

tevino

#!/usr/bin/env bash

ENV_PATH="$(dirname "$(dirname "$(which pip)")")"
SYSTEM_VIRTUALENV="$(which -a virtualenv|tail -1)"

BAD_ENV_PATHS="/usr/local"

echo "Ensure the root of the broken virtualenv:"
echo "    $ENV_PATH"

treyhunner

"""
Results:

multiple_update: 33 ms
copy_and_update: 27 ms
dict_constructor: 29 ms
kwargs_hack: 33 ms
dict_comprehension: 33 ms
concatenate_items: 81 ms
union_items: 81 ms