Tai Kedzierski taikedz

Bitstrings converter

Probably many people have written something like this, for converting those joke images purporting to contain L3E7 h4xx0R c0deZ.

Data examples:

ascii-bits.txt: taken from a random pic of a mini typewriter with a 1 and 0 keyboard.
message.txt: taken from a music video ad with an AI-type character

Script:

Run X apps on Windows

Two methods - either through WSL, or through SSH with cygwin/git bash/mingw.

Both require an X server

Easiest so far to install is VcXsrv through chocolatey

Install chocolatey https://chocolatey.org/install
Install vcxsrv: choco install vcxsrv -y

Windows things to install

New workflow for setting up a new Windows machine:

Set up chocolatey https://chocolatey.org/install
Use choco install for everything

Package list:

Quick one-off script to convert a yaml file to native python.

python3 convert-yaml-to-python.py YAMLFILE > my_data.py

A little naive, but a quick tool otherwise.

ShellPipe.py

Replaced with an actual implementation

Time Sampling

I was curious to know what level of precision I could get when using time.sleep(x), like, if it made any sense to try and sleep for say 0.0132 seconds.

It turns out, it does. On a Windows machine with a 1.6GHz processor, I get a sample rate such:

$ python3 time_sampling.py 6
Average step over 1000000 (100.0%) iterations: 2.77e-07

Plot times examples

As a network behaviour demonstration, I did a repeated clone-out of a Git repository, writing its timestamp data with date '+%F %T' in columns one and two (start and end times) of a CSV

This Python script processes that CSV to produce a plot of the durations:

timedeltas calculated using datetime
plotting using matplotlib.pyplot
adding labels at spaced out intervals, and rotated

	import yaml
	import os

	class RecursiveYamlLoad(Exception):
	pass


	def mingw_path(path):
	#TODO not yet finished
	""" Running Python in MinGW (incl Git Bash) causes abspath() to mangle the path

	import sys
	from collections import namedtuple


	# A friendlier named object for working with each output line
	Analysis = namedtuple("Analysis", [
	"NLOC", # Count of number of active LOC (excl whitespace)
	"CCN", # Cyclomatic Complexity Number
	"token", # token count: how many syntactic tokens ("if", "[", "5", etc) are used in the functions
	"PARAM", # number of parameters to the function

	""" Rename files

	rename-tracks.py TRACKFILE [apply]

	TRACKFILE is a basic text file, each line containing a track name.

	This script naively looks for the track name in each file name.
	If found, the old file name and new file name are printed.

	If a title matches multiple files, an error is raised.