Transcribed from 0:52–24:13 of the Week 8 recording at lgo.idaho.gov/capitol-clarity/
[DRAFT] Ghetto Guide to CMS
Interpretive labor on RFC 5652 and RFC 5280
mcrcon: auto-parse password
alias mcrcon='env MCRCON_PASS="${MCRCON_PASS=$(sed -n -e '\''s/^rcon\.password=\(.\+\)/\1/p'\'' < server.properties)}" mcrcon'Python: Using XOFs for general-purpose Random
As always, one's own stack overflow answers make the best blog posts. In this case, we craft a version of random.Random with a few modifications: Pulls its data from an arbitrary stream (in our case, a DRBG such as a hash function or deterministic CSPRNG) Wastes noticeably fewer bits when generating random integers Has fixed code for .shuffle, on the offchance CPython ever changes theirs, and to make it …
Python: Rounding fractions half-up
By default, Python's fractions rounds halves to the nearest even number. If you, instead, want to round a fraction but send halves up, here's how that's done:
def roundhalfup(x: Fraction) -> int:
"""
Rounds x to the nearest integer, with ties being rounded towards positive infinity
"""
return floor(x + Fraction(1, 2))Javascript: Parsing query parameters
There are at least 2×5×7×3×3×1=630 different things you might unambiguously mean by "parsing" a query string in Javascript: …
Python: Nested in-line "for" statements
You must leave the fors in the same order as in the code-block form, only popping the inner expression itself to the front:…
Converting SVG to .ico with Python
Just a super rudimentary script that I made which hooks CairoSVG up to Pillow because apparently Firefox doesn't support SVG-formatted browserAction images
Breaking out of multiple "for" loops in Python
Python doesn't support break some_label; or break 3;, but it does support for-else…
Parsing the HTTP "Date" header in Python
Per RFC 7231 §7.1.1.1