check_dependencies.py

#!/usr/bin/env python3
# coding: utf-8
#    This program is free software: you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation, either version 3 of the License, or
#    (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
import os
import platform

# finding os platform
os_type = platform.system()

# Checking dependencies!
not_installed = ''

# PyQt5 or PySide6
try:
    import PySide6
    print('python3-pyside6 is found')
    pyside6_is_installed = True
except:
    pyside6_is_installed = False

if not(pyside6_is_installed):
    try:
        import PyQt5
        print('python3-pyqt5 is found')
    except:
        print('Error : python3-pyqt5 or pyside6 must be installed!')
        not_installed = not_installed + '(PyQt5 or PySide6) '

# python3-requests
try:
    import requests
    print('python3-requests is found!')
except:
    print('Error : requests is not installed!')
    not_installed = not_installed + 'python3-requests, '

# python3-setproctitle
try:
    import setproctitle
    print('python3-setproctitle is found!')
except:
    print("Warning: setproctitle is not installed!")
    not_installed = not_installed + 'python3-setproctitle, '

# psutil
try:
    import psutil
    print('python3-psutil is found!')
except:
    print("Warning: python3-psutil is not installed!")
    not_installed = not_installed + 'psutil, '

# youtube_dl
try:
    import yt_dlp as youtube_dl
    print('yt-dlp is found')
except:
    print('Warning: yt-dlp is not installed!')
    not_installed = not_installed + 'yt-dlp, '

# aria2
answer = os.system('aria2c --version 1>/dev/null')
if answer != 0:
    print("Error aria2 not installed!")
    not_installed = not_installed + 'aria2c, '
else:
    print('aria2 is found!')

# ffmpeg
answer = os.system('ffmpeg -version 1>/dev/null')
if answer != 0:
    print("Warning: ffmpeg not installed!")
    not_installed = not_installed + 'ffmpeg, '
else:
    print('ffmpeg is found!')


# sound-theme-freedesktop
if os_type == 'Linux':
    notifications_path = '/usr/share/sounds/freedesktop/stereo/'
elif os_type == 'FreeBSD' or os_type == 'OpenBSD':
    notifications_path = '/usr/local/share/sounds/freedesktop/stereo/'

if os_type == 'Linux' or os_type == 'FreeBSD' or os_type == 'OpenBSD':

    if os.path.isdir(notifications_path):
        print('sound-theme-freedesktop is found!')
    else:
        print('Warning: sound-theme-freedesktop is not installed! you need this package for sound notifications!')
        not_installed = not_installed + 'sound-theme-freedesktop'


    # libnotify-bin
    answer = os.system('notify-send --version 1>/dev/null')
    if answer != 0:
        print("Error libnotify-bin is not installed!")
        not_installed = not_installed + 'libnotify-bin, '
    else:
        print('libnotify-bin is found!')

    # paplay
    answer = os.system('paplay --version 1>/dev/null')
    if answer != 0:
        print("Warning: paplay not installed!You need pulseaudio for sound notifications!")
        not_installed = not_installed + 'paplay, '
    else:
        print('paplay is found!')



# show warning , if dependencies not installed!
if not_installed != '':
    print('########################')
    print('####### WARNING ########')
    print('########################')
    print('Some dependencies are not installed .It causes some problems for persepolis! : \n')
    print(not_installed + '\n\n')
    print('Read this link for more information: \n')
    print('https://github.com/persepolisdm/persepolis/wiki/git-installation-instruction\n\n')