stuaxo

def is_container_type(type_hint: Any) -> bool:
    """\
    :return: for containers you might add to a dataclass, like List[...] but types like str.
    """
    origin = get_origin(type_hint) or type_hint
    
    if origin is str:
        return False
        
    if isinstance(origin, type):

stuaxo

# Extend https://yeonwoosung.github.io/posts/pydantic-vs-dataclass/
# to convert nested dataclasses.

from functools import lru_cache

from dataclasses import fields, _MISSING_TYPE, is_dataclass
from typing import Any, Optional

import pydantic

stuaxo

Packages needed

$ sudo apt install v4l2loopback-dkms v4l2loopback-utils

Create virtual device

$ sudo modprobe -v v4l2loopback exclusive_caps=1 card_label="Virtual Webcam"

stuaxo

aws-env() {
    export AWS_REGION=$(aws configure get region)
    export AWS_ACCOUNT_ID=$(aws sts get-caller-identity --query Account --output text)
    export AWS_ACCESS_KEY_ID=$(aws configure get aws_access_key_id)
    export AWS_SECRET_ACCESS_KEY=$(aws configure get aws_secret_access_key)
    echo "AWS environment variables set:"
    echo "AWS_REGION=$AWS_REGION"
    echo "AWS_ACCOUNT_ID=$AWS_ACCOUNT_ID"
    echo "AWS_ACCESS_KEY_ID=$AWS_ACCESS_KEY_ID"
    echo "AWS_SECRET_ACCESS_KEY=********"

stuaxo

DATA_FILE = "your-file.parquet"

import pandas as pd

# Read the Parquet file
df = pd.read_parquet(DATA_FILE)

def df_schema(df):
    # Print the column names and their types
    for column in df.columns:

stuaxo

#!/bin/bash
#
# Creates a Jupyter kernel for a virtual environment.
#
# Usage:
#   ./create_kernel.sh [venv_name]
#
# Arguments:
#   venv_name    Optional.  Name of the virtual environment to create kernel for.
#                If not provided, uses currently activated environment.

stuaxo

Ubuntu in QEmu via UTM on a Mac

UTM is available from the app store for £9, or here: mac.getutm.app

Look up the instructions for installing Ubuntu, install it using Qemu. I used this 22.04 image (As of 3-Aug-2023 I was NOT successful in installing, or upgrading to 23.04) https://cdimage.ubuntu.com/jammy/daily-live/current/jammy-desktop-arm64.iso

stuaxo

#!/bin/bash

# Function to handle the download
download_file() {
  local delete_flag="${1:-false}"
  local url="$2"
  local filename="$3"

  # Extract filename from URL if not provided
  if [ -z "$filename" ]; then

stuaxo

#!/bin/bash
#
# Download all the files in a GitHub Gist
#
# Example usage:
# $ download-gist.sh https://gist.github.com/stuaxo/2e110aaa42050490ad3fd73cfbedf76a
#
# By default, files are not overwritten. The -f option overrides this behavior:
# $ download-gist.sh -f https://gist.github.com/stuaxo/2e110aaa42050490ad3fd73cfbedf76a
#

stuaxo

#!/bin/bash
#
# Download open watcom 1.9 from sourceforge.
#
# Requires curl or wget
FILENAME="open-watcom-c-linux-1.9"
URL="https://master.dl.sourceforge.net/project/openwatcom/open-watcom-1.9/$FILENAME"

# Check if curl is available
if command -v curl >/dev/null 2>&1; then