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# code from: https://stackoverflow.com/a/77080460/6085378

from datetime import datetime, timedelta

from cryptography import x509
from cryptography.hazmat.primitives import hashes
from cryptography.hazmat.primitives.asymmetric import rsa
from cryptography.hazmat.primitives.serialization import (
    BestAvailableEncryption,
    PrivateFormat,

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# comand from: https://askubuntu.com/questions/1267534/trying-to-upgrade-from-18-04-to-20-04-your-python3-install-is-corrupted
sudo ln -fs /usr/bin/python3.6 /usr/bin/python3

mstuttgart

Arquivo original: https://stackoverflow.com/questions/20518632/importerror-numpy-core-multiarray-failed-to-import Erro de instalação pacote numpy. Corrigir com:

pip install numpy --upgrade --ignore-installed

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Instalar as libs separadamente (python 3.8)

pip install --no-binary lxml lxml==4.6.3
pip install --no-binary xmlsec xmlsec

Instalar as libs separadamente (python 3.10)

pip install --no-binary lxml==4.6.3 lxml==4.6.3 --force-reinstall
pip install --no-binary xmlsec==1.3.13 xmlsec==1.3.13

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Note

Highlights information that users should take into account, even when skimming.

Tip

Optional information to help a user be more successful.

Important

Crucial information necessary for users to succeed.

[!WARNING]

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Linux tips

Remap CapsLock to Esc in ubuntu

The standard setxkbmap which is used to switch keyboard mappings actually has a standard option to replace the caps lock with escape.

setxkbmap -option caps:escape

To restore:

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def soma(a, b):
  # ignora apenas a linha abaixo  
  soma = a + b  # fmt: skip
  return soma

# ignora todo o bloco de codigo a abaixo
# fmt: off
def subtracao(a, b):
  sub = a - b
  return sub

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Arquivo de configuração alternativo do postgresql. Sobressai sobre o /etc/postgresql/12/main/postgres.conf

sudo nvim /var/lib/postgresql/14/main/postgresql.auto.conf

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from ansible import playbook, callbacks

# uncomment the following to enable silent running on the playbook call
# this monkey-patches the display method on the callbacks module
# callbacks.display = lambda *a,**ka: None

# the meat of the meal.  run a playbook on a path with a hosts file and ssh key
def run_playbook(playbook_path, hosts_path, key_file):
    stats = callbacks.AggregateStats()
    playbook_cb = callbacks.PlaybookCallbacks(verbose=0)

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# Makefile for python code
# 
# > make help
#
# The following commands can be used.
#
# init:  sets up environment and installs requirements
# install:  Installs development requirments
# format:  Formats the code with autopep8
# lint:  Runs flake8 on src, exit if critical rules are broken