65 lines
2.2 KiB
Python
65 lines
2.2 KiB
Python
# vim: ft=python fileencoding=utf-8 sts=4 sw=4 et:
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# Copyright 2014-2016 Florian Bruhin (The-Compiler) <mail@qutebrowser.org>
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#
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# This file is part of qutebrowser.
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#
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# qutebrowser is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# qutebrowser is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with qutebrowser. If not, see <http://www.gnu.org/licenses/>.
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"""Check if qutebrowser is run with the correct python version.
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This should import and run fine with both python2 and python3.
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"""
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import sys
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try:
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# Python3
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from tkinter import Tk, messagebox
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except ImportError: # pragma: no coverage
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try:
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# Python2
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from Tkinter import Tk
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import tkMessageBox as messagebox
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except ImportError:
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# Some Python without Tk
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Tk = None
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messagebox = None
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# First we check the version of Python. This code should run fine with python2
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# and python3. We don't have Qt available here yet, so we just print an error
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# to stderr.
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def check_python_version():
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"""Check if correct python version is run."""
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if sys.hexversion < 0x03040000:
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# We don't use .format() and print_function here just in case someone
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# still has < 2.6 installed.
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# pylint: disable=bad-builtin
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version_str = '.'.join(map(str, sys.version_info[:3]))
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text = ("At least Python 3.4 is required to run qutebrowser, but " +
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version_str + " is installed!\n")
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if Tk and '--no-err-windows' not in sys.argv: # pragma: no coverage
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root = Tk()
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root.withdraw()
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messagebox.showerror("qutebrowser: Fatal error!", text)
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else:
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sys.stderr.write(text)
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sys.stderr.flush()
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sys.exit(1)
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if __name__ == '__main__':
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check_python_version()
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