karmadonov

PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h):

• -E: will describe the underlaying queries of the \ commands (cool for learning!)
• -l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)

karmadonov

#include <iostream>
#include <lemon/smart_graph.h>
#include <lemon/lgf_reader.h>
#include <lemon/lgf_writer.h>
#include <lemon/capacity_scaling.h>

using namespace lemon;

int main() {
    SmartDigraph g;

karmadonov

{
    "color_scheme": "Packages/Color Scheme - Default/GitHub.tmTheme",
    "font_face": "SourceCodePro",
    "font_size": 13,
    "highlight_line": true,
    "ignored_packages": [],
    "rulers": [79],
    "theme": "Soda Light.sublime-theme",
    "translate_tabs_to_spaces": true,
    "trim_trailing_white_space_on_save": true

karmadonov

git clean -df

Cleans the working tree by recursively removing files that are not under version control, starting from the current directory.

karmadonov

import base64
import cStringIO

from django.core.files.uploadedfile import InMemoryUploadedFile

# ...
if request.POST.get('file') and request.POST.get('name'):
    file = cStringIO.StringIO(base64.b64decode(request.POST['file']))
    image = InMemoryUploadedFile(file,
       field_name='file',

karmadonov

from random import choice
import string


chars = string.letters + string.digits  # Python 2
chars = string.ascii_letters + string.digits  # Python 3
rand_name = lambda x: ''.join(choice(chars) for i in range(x))

>>> rand_name(5)
'Hxm7y'

karmadonov

title:              Nightbook
artist:             Ludovico Einaudi
tags:               [classical, neoclassical, contemporary classical]
release_date:       2009-09-20
label:              Sony Classical
country:            United Kingdom
barcode:            028947636397
cover:              cover.jpg

files: