Itamar Turner-Trauring itamarst

Helping software teams using Python to ship features faster.

itamarst / wgpu_example.py

Created February 14, 2024 13:37

wgpu example

	from wgpu.utils.compute import compute_with_buffers
	from wgpu.utils import get_default_device
	import numpy as np
	from time import time

	# A "shader"" is a program that will run on the GPU:
	SHADER = """
	@group(0) @binding(0)
	var<storage,read> input1: array<i32>;

itamarst / example.py

Last active December 15, 2023 14:49

Optimized Numba kernel

	@numba.jit(nopython=True, parallel=True, fastmath=True)
	def spatial_regularisation_numbaoptimized(x: np.ndarray, dy: int = 1, dx: int = 1) -> float:
	ny, nx = x.shape
	total_cost = 0.0

	for i in numba.prange(ny):
	i = numba.int64(i)
	min_y = max(i - dy, 0)
	max_y = min(i + dy + 1, ny)
	for j in numba.prange(nx):

itamarst / lint.sh

Created February 6, 2023 16:34

Lint script for Tahoe-LAFS

	#!/bin/bash
	set -euo pipefail
	flake8 src/
	python -m coverage run --branch -m twisted.trial "$@"
	coverage combine
	coverage xml
	diff-cover coverage.xml --compare-branch origin/master --html-report ~/temp/tahoe-coverage.html
	firefox ~/temp/tahoe-coverage.html

itamarst / igc issues

Last active November 8, 2022 22:05

	## dmesg -w -T \| grep -i igc

	```
	[Tue Nov 8 12:28:33 2022] igc 0000:02:00.0: PTM enabled, 4ns granularity
	[Tue Nov 8 12:28:33 2022] igc 0000:02:00.0 (unnamed net_device) (uninitialized): PHC added
	[Tue Nov 8 12:28:33 2022] igc 0000:02:00.0: 4.000 Gb/s available PCIe bandwidth (5.0 GT/s PCIe x1 link)
	[Tue Nov 8 12:28:33 2022] igc 0000:02:00.0 eth0: MAC: d8:5e:d3:af:21:82
	[Tue Nov 8 12:28:33 2022] igc 0000:02:00.0 enp2s0: renamed from eth0
	[Tue Nov 8 12:28:41 2022] igc 0000:02:00.0 enp2s0: NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX
	[Tue Nov 8 13:03:38 2022] igc 0000:02:00.0 enp2s0: PCIe link lost, device now detached

itamarst / example.py

Created March 31, 2020 21:06

Typing Ctrl-C in Powershell interrupts the input() with KeyboardInterrupt, so why doesn't GenerateConsoleCtrlEvent?

	import threading
	import time
	from _thread import interrupt_main
	import signal
	import os
	import ctypes

	def interrupter():
	time.sleep(1) # make sure input() is waiting
	print("Interrupting!")

itamarst / out.txt

Created February 13, 2019 16:03

I ♥ conda

	$ conda update -n base -c defaults conda
	Solving environment: done


	==> WARNING: A newer version of conda exists. <==
	current version: 4.5.11
	latest version: 4.6.3

	Please update conda by running

itamarst / gist:bc05229920f9042405f310e99ad7fbe4

Last active March 21, 2018 15:59

frames and series

	In [4]: df = pd.DataFrame({"a": [1, 2, 3], "b": [4, 5, 6]}, index=["x", "y", "z"])

	In [5]: df
	Out[5]:
	a b
	x 1 4
	y 2 5
	z 3 6

	In [6]: df["a"]

itamarst / gist:3343845de05a1e3a93fb

Last active August 29, 2015 14:07

Output of linkcheck.py

itamarst / gist:947474a4e00d358892fe

Last active August 29, 2015 14:04

Effect-inspired library idea aimed at unit testing Deferred-using code

	# my_effect.py
	"""
	In normal code, side-effecty code is run as usual.

	In tests one can (with a context manager, perhaps) disable side-effects and figure out
	what the intention of the code is without actually triggering any side-effects.
	"""

	class IEffect(Interface):
	def run():

itamarst / gist:8378860

Created January 12, 2014 00:28

pip install boom

	------------------------------------------------------------
	/home/itamar/.local/bin/pip-3.3 run on Sat Jan 11 19:15:31 2014
	Downloading/unpacking svn+ssh://[email protected]/svn/Twisted/branches/python3-setup-6539

	Checking out svn+ssh://[email protected]/svn/Twisted/branches/python3-setup-6539 to ./pip-qk0ee4-build

	Found command 'svn' at '/usr/bin/svn'
	Running command /usr/bin/svn checkout -q --username itamarst svn+ssh://[email protected]/svn/Twisted/branches/python3-setup-6539 /tmp/pip-qk0ee4-build
	Running setup.py egg_info for package from svn+ssh://[email protected]/svn/Twisted/branches/python3-setup-6539