AdamGold

In [9]: import array                                                                                                                                                                                                
In [10]: import pickle                                                                                                                                                                                              
In [11]: double_array = array.array("i", range(10 ** 6)) 
    ...: start_time = time.time() 
    ...: with open("array_temp.bin", "wb") as f: 
    ...:     double_array.tofile(f) 
    ...: array_end_time = time.time() - start_time                                                                                                                                                                  
In [12]: int_list = list(range(10 ** 6)) 
    ...: start_time = time.time() 
    ...: with open("list_temp.bin", "wb") as f: 

MattWoodhead

import operator
from functools import reduce

def nmea_checksum(sentence: str):
    """
    This function checks the validity of an NMEA string using it's checksum
    """
    sentence = sentence.strip("$\n")
    nmeadata, checksum = sentence.split("*", 1)
    calculated_checksum = reduce(operator.xor, (ord(s) for s in nmeadata), 0)

schmich

Programming Media Keys on the Ducky One 2 Skyline

To use media keys on the Ducky One 2 Skyline, you must record a macro to bind the media function to a hotkey combination, i.e. Fn plus some key.

Example

Important: In the instructions below, "Press X+Y+Z" means press and hold key X, press and hold key Y, press and hold key Z in that order, and then release all three.

As an example, to bind Fn+PgUp to the play/pause media function:

mowings

Use ffmpeg to stream video from a dahua 4300s to a file or files

You can use ffmpeg to directly pull frames off of a dahua 4300s at full resolution. May be a good alternative to pricey dvrs which likely cannot record at full resolution, may not work with the camera, or are prohibitevly expensive

Simple Stream to file

Simple stream to file. Full resolution

ffmpeg -loglevel debug -rtsp_transport tcp -i "rtsp://admin:admin@198.175.207.61:554/live" \

-c copy -map 0 foo.mp4

miku

#!/usr/bin/env python

import sqlite3

class dbopen(object):
    """
    Simple CM for sqlite3 databases. Commits everything at exit.
    """
    def __init__(self, path):
        self.path = path