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# -*- coding: utf-8 -*-
# Copyright Martin Manns
# Distributed under the terms of the GNU General Public License
# --------------------------------------------------------------------
# pyspread 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.
#
# pyspread 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 pyspread. If not, see <http://www.gnu.org/licenses/>.
# --------------------------------------------------------------------
"""
**Provides**
* :func:`check_mandatory_dependencies`:
* :class:`PathAction`:
* :class:`CommandLineParser`:
"""
from argparse import ArgumentParser
from pathlib import Path
import logging
import sys
try:
import PyQt6.QtSvg as pyqtsvg
except ImportError:
pyqtsvg = None
try:
from pyspread.__init__ import APP_NAME, VERSION
from pyspread.installer import REQUIRED_DEPENDENCIES
except ImportError:
from __init__ import APP_NAME, VERSION
from installer import REQUIRED_DEPENDENCIES
def check_mandatory_dependencies():
"""Checks mandatory dependencies and exits if they are not met"""
def dependency_warning(message: str):
"""Print warning message to stdout
:param message: Warning message to be displayed
"""
sys.stdout.write(f'Warning: {message}\n')
# Check Python version
major = sys.version_info.major
minor = sys.version_info.minor
micro = sys.version_info.micro
if major < 3 or major == 3 and minor < 6:
msg = f"Python has version {major}.{minor}.{micro}" + \
" but ≥ 3.6 is required."
dependency_warning(msg)
for module in REQUIRED_DEPENDENCIES:
if module.is_installed() is None or not module.is_installed():
dependency_warning(f"Required module {module.name} not found.")
elif module.version < module.required_version:
msg = f"Module {module.name} has version {module.version}" + \
f"but {module.required_version} is required."
dependency_warning(msg)
if pyqtsvg is None:
# Import of mandatory module failed
msg = "Required module PyQt6.QtSvg not found."
dependency_warning(msg)
class PyspreadArgumentParser(ArgumentParser):
"""Parser for the command line"""
def __init__(self):
check_mandatory_dependencies()
description = "pyspread is a non-traditional spreadsheet that is " \
"based on and written in the programming language " \
"Python."
super().__init__(prog=APP_NAME, description=description)
self.add_argument('--version', action='version', version=VERSION)
self.add_argument('--default-settings', action='store_true',
help='start with default settings and save them on '
'exit')
self.add_argument('-d', '--debug',
help="Print debug information",
action="store_const", dest="loglevel",
const=logging.DEBUG, default=logging.WARNING)
self.add_argument('-v', '--verbose',
help="Print verbose information",
action="store_const", dest="loglevel",
const=logging.INFO)
self.add_argument('file', type=Path, nargs='?', default=None,
help='open pyspread file in pys or pysu format')
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