# ติดตั้ง
# Debian, Ubuntu 
apt install ocrmypdf

# Windows Subsystem for Linux
apt install ocrmypdf

#Fedora
dnf install ocrmypdf

#macOS
brew install ocrmypdf

#LinuxBrew
brew install ocrmypdf

#FreeBSD
pkg install textproc/py-ocrmypdf

#Conda (WSL, macOS, Linux)
conda install ocrmypdf

#Snap (snapcraft packaging)
snap install ocrmypdf

ocrmypdf input.pdf output.pdf

# ติดตั้ง
pip install django-silk

MIDDLEWARE = [
    ...
    'silk.middleware.SilkyMiddleware',
    ...
]

INSTALLED_APPS = (
    ...
    'silk'
)

urlpatterns += [path('silk/', include('silk.urls', namespace='silk'))]

python manage.py migrate

python manage.py collectstatic

pip install cpgames

import random
from cpgames import cpgames

game_client = cpgames.CPGames()
all_supports = game_client.getallsupported()
game_client.execute(random.choice(list(all_supports.values())))

# บน Ubuntu
$ sudo apt install pg-activity

# บน Centos
$ sudo yum install pg_activity

# ติดตั้งด้วย pip
pip install pg_activity psycopg2-binary

postgres pg_activity -U postgres

pg_activity [options] [connection string]

Options:
  --blocksize BLOCKSIZE
                        Filesystem blocksize (default: 4096).
  --rds                 Enable support for AWS RDS (implies --no-tempfiles and filters out the rdsadmin database from space calculation).
  --output FILEPATH     Store running queries as CSV.
  --no-db-size          Skip total size of DB.
  --no-tempfiles        Skip tempfile count and size.
  --no-walreceiver      Skip walreceiver checks.
  -w, --wrap-query      Wrap query column instead of truncating.
  --duration-mode DURATION_MODE
                        Duration mode. Values: 1-QUERY(default), 2-TRANSACTION, 3-BACKEND.
  --min-duration SECONDS
                        Don't display queries with smaller than specified duration (in seconds).
  --filter FIELD:REGEX  Filter activities with a (case insensitive) regular expression applied on selected fields. Known fields are: dbname.
  --debug-file DEBUG_FILE
                        Enable debug and write it to DEBUG_FILE.
  --version             show program's version number and exit.
  --help                Show this help message and exit.

Connection Options:
  connection string     A valid connection string to the database, e.g.: 'host=HOSTNAME port=PORT user=USER dbname=DBNAME'.
  -h HOSTNAME, --host HOSTNAME
                        Database server host or socket directory.
  -p PORT, --port PORT  Database server port.
  -U USERNAME, --username USERNAME
                        Database user name.
  -d DBNAME, --dbname DBNAME
                        Database name to connect to.

Process table display options:
  These options may be used hide some columns from the processes table.

  --no-pid              Disable PID.
  --no-database         Disable DATABASE.
  --no-user             Disable USER.
  --no-client           Disable CLIENT.
  --no-cpu              Disable CPU%.
  --no-mem              Disable MEM%.
  --no-read             Disable READ/s.
  --no-write            Disable WRITE/s.
  --no-time             Disable TIME+.
  --no-wait             Disable W.
  --no-app-name         Disable App.

Other display options:
  --hide-queries-in-logs
                        Disable log_min_duration_statements and log_min_duration_sample for pg_activity.
  --no-inst-info        Display instance information in header.
  --no-sys-info         Display system information in header.
  --no-proc-info        Display workers process information in header.
  --refresh REFRESH     Refresh rate. Values: 0.5, 1, 2, 3, 4, 5 (default: 2).

pip install pendulum

>>> import pendulum

>>> now_in_paris = pendulum.now('Europe/Paris')
>>> now_in_paris
'2016-07-04T00:49:58.502116+02:00'

>>> tomorrow = pendulum.now().add(days=1)

>>> past = pendulum.now().subtract(minutes=2)
>>> past.diff_for_humans()
'2 minutes ago'

>>> delta = past - last_week
>>> delta.hours
23
>>> delta.in_words(locale='en')
'6 days 23 hours 58 minutes'