danielgoncalves

from kivy.app import runTouchApp
from kivy.lang import Builder
from kivy.uix.button import Button
from kivy.garden.moretransitions import (
    PixelTransition, RippleTransition, BlurTransition, RVBTransition,
    RotateTransition, TileTransition, FastSlideTransition,
)

ALL_TRANSITIONS = (
    PixelTransition, RippleTransition, BlurTransition, RVBTransition,

danielgoncalves

from kivy.app import App
from kivy.lang import Builder
from kivy.properties import OptionProperty
from kivy.core.window import Window
from kivy.factory import Factory


KV = '''
#:import A kivy.animation.Animation
<RLabel@Label>:

danielgoncalves

Tested only on Ubuntu 20.04, KDE Neon User Edition (based on Ubuntu 20.04) and OSX Mojave.

will probably work on other newer versions, with no changes, or with few changes in non-python dependencies (apt-get packages)

NOTE: Don't create a .sh file and run it all at once. It will not work. Copy, paste, and execute each command below manually. :-)

Ubuntu

# DO NOT RUN THIS AS A ROOT USER

danielgoncalves

import random
import string

from lazyquicksort import lazy_sort
    

def chars(length):
    options = string.ascii_lowercase
    return ''.join([random.choice(options) for i in range(length)])
    

danielgoncalves

Creating the patch

git format-patch -1 <sha>
OR
git format-patch -1 HEAD

Applying the patch

git apply --stat file.patch # show stats.
git apply --check file.patch # check for error before applying

danielgoncalves

PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h or --help depending on your psql version):

• -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)

danielgoncalves

from reportlab.pdfgen import canvas
from reportlab.lib.pagesizes import A4
from reportlab.lib.units import mm
#I"ll be generating code39 barcodes, others are available
from reportlab.graphics.barcode import code39

# generate a canvas (A4 in this case, size doesn"t really matter)
c=canvas.Canvas("barcode_example.pdf",pagesize=A4)
# create a barcode object
# (is not displayed yet)

danielgoncalves

#   Copyright 2017 Dan Krause
#
#   Licensed under the Apache License, Version 2.0 (the "License");
#   you may not use this file except in compliance with the License.
#   You may obtain a copy of the License at
#
#       http://www.apache.org/licenses/LICENSE-2.0
#
#   Unless required by applicable law or agreed to in writing, software
#   distributed under the License is distributed on an "AS IS" BASIS,

danielgoncalves

import ctypes, sys
from ctypes import windll, wintypes
from uuid import UUID

class GUID(ctypes.Structure):   # [1]
    _fields_ = [
        ("Data1", wintypes.DWORD),
        ("Data2", wintypes.WORD),
        ("Data3", wintypes.WORD),
        ("Data4", wintypes.BYTE * 8)