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#!/usr/bin/env python
import pika, sys, os

def main():
    connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost'))
    channel = connection.channel()

    channel.queue_declare(queue='hello')

    def callback(ch, method, properties, body):

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# Example from traitlets documentation

from traitlets import Bool, HasTraits, Int, TraitError, observe, validate


class Parity(HasTraits):
    value = Int()
    parity = Int()

    @validate("value")

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#!/usr/bin/env zsh

hooks=(chpwd periodic precmd preexec zshaddhistory zshexit)

for hook in $hooks; do
  # First eval the hook function, stored as string
  eval "hook_func_str=$\"${hook}_functions\""
  # [expansion rule](http://zsh.sourceforge.net/Doc/Release/Expansion.html#Rules)
  # [Parameter expansion flags](http://zsh.sourceforge.net/Doc/Release/Expansion.html#Parameter-Expansion-Flags)
  eval "hookfunc=\"${hook_func_str}\""

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# This gist is from
# https://reasoniamhere.com/2014/01/11/outrageously-useful-tips-to-master-your-z-shell/

cd ${TMP:-/tmp}

# create the folder structure
mkdir -p zsh_demo/{data,calculations}/africa/{kenya,malawi}/ \
		 zsh_demo/{data,calculations}/europe/{malta,poland}/ \
		 zsh_demo/{data,calculations}/asia/{nepal,laos}/

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VMware

Troubleshooting on hosts with secure mode enabled

UEFI[^1] Secure Boot[^2] (SB) is a verification mechanism for ensuring that code launched by a computer's UEFI firmware is trusted. Unsigned drivers are therefor not allowed to load.

2 kernels modules are compiled at installation time and must be loaded. If the host provides the proper kernel headers and gcc, these two modules will be built silently. The progress is logged into /tmp/vmware-root/vmware-PID.log [^3].

On error type like:

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from xml.etree.ElementTree import Element
import xml.etree.ElementTree as ET
from collections.abc import Iterator

from pydantic import BaseModel
from typing import Optional

def get_children(fragment, eltname):
    return filter(lambda elt: elt.tag != eltname, fragment.find(eltname))

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from xml.etree.ElementTree import Element
import xml.etree.ElementTree as ET

from marshmallow import (Schema, pre_load)

from marshmallow.fields import (
    Str,
    Integer,
    List,
    Nested