Sean-Jiun Wang swang373

Former particle physicist, AI enthusiast, Python programmer, and metal guitarist.

swang373 / hex2ascii.py

Created July 21, 2023 14:17

Hex to ASCII conversion in Python

	import binascii

	HEXSTRING = (
	'546869732069732066696e652e2049276d206f6b61792077697468207468'
	'65206576656e747320746861742061726520756e666f6c64696e67206375'
	'7272656e746c792e20546861742773206f6b61792c207468696e67732061'
	'726520676f696e6720746f206265206f6b61792e0a'
	)

	print(binascii.unhexlify(HEXSTRING))

swang373 / requests_user_agent.py

Created October 25, 2019 14:32

Add User-Agent to request header

	import requests


	URL = 'https://www.google.com'

	HEADERS = {
	'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:61.0) Gecko/20100101 Firefox/70.0'
	}

	response = requests.get(URL, headers=HEADERS)

swang373 / headless_firefox_example.py

Created October 24, 2019 16:03

Running a headless Firefox browser using Selenium webdriver

	from selenium import webdriver


	def main():
	# Setup options to run Firefox in headless mode.
	firefox_options = webdriver.FirefoxOptions()
	firefox_options.headless = True

	# Open a Firefox browser and check the Python official site.
	driver = webdriver.Firefox(options=firefox_options)

swang373 / simple_request_example.py

Created October 24, 2019 15:56

Example of URL fetching function using requests library

	import requests


	class HTTPRequestError(Exception):
	pass


	def fetch(url, params=None, **kwargs):
	try:
	response = requests.get(url, params, **kwargs)

swang373 / discord_bot_await_mention.py

Last active October 24, 2019 15:59

Awaiting bot mentions using discord.py

	import logging

	import discord


	logger = logging.getLogger('DiscordBot')


	class Bot(discord.Client):

swang373 / move_output_files_lpc.sh

Created June 13, 2018 02:05

Move AnalysisTools output files from one LPC EOS directory to another

	SRC="/store/group/lpchbb/VHbbAnalysisNtuples/RESUBMIT_June9_2016V4"

	DST="/store/group/lpchbb/VHbbAnalysisNtuples/CMSConnect_June9_2016V4/ggZH125_ZLL_powheg"

	FILES=(
	output_ggZH125_ZLL_powheg_177part0.root
	output_ggZH125_ZLL_powheg_177part1.root
	output_ggZH125_ZLL_powheg_177part10.root
	output_ggZH125_ZLL_powheg_177part11.root
	output_ggZH125_ZLL_powheg_177part12.root

swang373 / split_jobs_again.py

Created June 12, 2018 18:18

Split an AnalysisTools resubmission job into more subjobs and calculate the starts and stops

	import sys

	# The only command line argument should be the path to a file
	# where each line is a set of arguments for resubmission.
	with open(sys.argv[1]) as f:
	lines = f.read().splitlines()

	for line in lines:
	start, stop = line.split()[-3:-1]
	start = float(start)

swang373 / find_failed_job_args.py

Last active June 12, 2018 18:06

Finding the arguments for AnalysisTools CMSConnect jobs that require resubmission

	import glob
	import os


	SEARCH_PATTERN = '/path/to/your/output/dir/{0}/*.root'

	SAMPLES = [
	'DYToLL_madgraph',
	'ZH125_ZNuNu_powheg',
	]

swang373 / check_output_directory.py

Last active June 12, 2018 17:59

Check the integrity of files in an AnalysisTools output directory

	import glob

	import ROOT
	import concurrent.futures


	def check_file(path):
	f = ROOT.TFile.Open(path)
	# The file is somehow unreadable.
	if not f:

swang373 / dump_hists_varial.py

Created May 16, 2018 04:06

Dump histograms in parallel using Varial

	#!/usr/bin/env python
	import glob
	import sys

	import varial.tools
	from varial_ext.treeprojector import TreeProjectorFileBased

	# The following all caps variables are module level constants that I would tweak by hand.
	# Most of them are parameters are passed to the treeprojection_mr_impl.map_projection
	# function, so check its docstring for more information.