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Rodrigo Silva MestreLion

  • Rio de Janeiro, Brazil
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View compression.py
import enum, gzip, zlib
class Compression(enum.IntEnum):
GZIP = 1 # GZip (RFC1952) (unused in practice)
ZLIB = 2 # Zlib (RFC1950)
NONE = 3 # Uncompressed. Mentioned in the wiki, but unused in practice
_compress = {
NONE: lambda _: _,
@MestreLion
MestreLion / getattr_on_iter.py
Created Oct 18, 2021
__getattr__ invoked on __iter__ ?
View getattr_on_iter.py
# Is __getattr__ invoked on __iter__ ?
# Copyright (C) 2021 Rodrigo Silva (MestreLion) <linux@rodrigosilva.com>
# License: GPLv3 or later, at your choice. See <http://www.gnu.org/licenses/gpl>
import collections.abc
import timeit
class MyDict(collections.abc.MutableMapping):
def __init__(self, *a, **kw): self._items = dict(*a, **kw)
@MestreLion
MestreLion / point.py
Created Oct 18, 2021
Website exercise
View point.py
import operator
class Point:
"""A 3D, (x, y, z) mutable point
>>> p1 = Point(1, 2, 3)
>>> p1
Point(x=1, y=2, z=3)
>>> p2 = Point(1, 2, 3)
@MestreLion
MestreLion / throwable_generic.py
Created Oct 18, 2021
How to create a discardable generic
View throwable_generic.py
# https://stackoverflow.com/questions/67803260
from typing import Generic, TypeVar, Dict, Any, Union
class DataClassJsonMixin: ...
class Person(DataClassJsonMixin): ...
JSON = Dict[str, Any] # Good enough json type for this demo
T = TypeVar("T", bound=DataClassJsonMixin)
# Solution 1: Union with impossible type that takes a Generic
# JSONOf = Union[JSON, Dict[JSON, T]]
@MestreLion
MestreLion / benchmark_iter.py
Created Oct 8, 2021
Python __iter__() performance: iter() vs yield from vs for
View benchmark_iter.py
#!/usr/bin/env python3
# Iter vs Yield vs For
# Copyright (C) 2021 Rodrigo Silva (MestreLion) <linux@rodrigosilva.com>
# License: GPLv3 or later, at your choice. See <http://www.gnu.org/licenses/gpl>
import collections.abc
import timeit
class Base(collections.abc.MutableMapping):
def __init__(self, items: dict = None): self._items: dict = items or {}
@MestreLion
MestreLion / pi-cpu-stress.sh
Last active Apr 17, 2021 — forked from geerlingguy/pi-cpu-stress.sh
Raspberry Pi CPU temperature and throttling test script
View pi-cpu-stress.sh
#!/bin/bash
# Raspberry Pi stress CPU temperature measurement script.
#
# Download this script (e.g. with wget) and give it execute permissions (chmod +x).
# Then run it with ./pi-cpu-stress.sh [run_name]
# Variables.
test_run=${1:-1}
test_results_file="${HOME}/cpu_temp_${test_run}.log"
stress_length="10m"
View update_lwjgl.sh
#!/usr/bin/env bash
echo "Determining OS..."
if [[ "$(uname -s)" == "Linux" ]]; then
mcdir="$HOME/.minecraft/"
downloader="wget --no-check-certificate -q -O"
os="linux"
natives="libjinput-linux libjinput-linux64 liblwjgl liblwjgl64 libopenal libopenal64"
elif [[ "$(uname -s)" == "Darwin" ]]; then
@MestreLion
MestreLion / GitRepoUpdateTimestamp.sh
Created Nov 8, 2012 — forked from jeffery/GitRepoUpdateTimestamp.sh
Update Timestamp of files in Checked-out Git Repository
View GitRepoUpdateTimestamp.sh
#!/bin/bash -e
####
# Helper script to update the Last modified timestamp of files in a Git SCM
# Projects working Copy
#
# When you clone a Git repository, it sets the timestamp of all the files to the
# time when you cloned the repository.
#
# This becomes a problem when you want the cloned repository, which is part of a
# Web application have a proper cacheing mechanism so that it can re-cache files