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# Copyright 2009-2016 Free Software Foundation, Inc.
# This file is part of GNU Radio
#
# GNU Radio Companion 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 2
# of the License, or (at your option) any later version.
#
# GNU Radio Companion 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, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
from __future__ import absolute_import
import os
import warnings
GR_IMPORT_ERROR_MESSAGE = """\
Cannot import gnuradio.
Is the model path environment variable set correctly?
All OS: PYTHONPATH
Is the library path environment variable set correctly?
Linux: LD_LIBRARY_PATH
Windows: PATH
MacOSX: DYLD_LIBRARY_PATH
"""
def die(error, message):
msg = "{0}\n\n({1})".format(message, error)
try:
import gtk
d = gtk.MessageDialog(
type=gtk.MESSAGE_ERROR,
buttons=gtk.BUTTONS_CLOSE,
message_format=msg,
)
d.set_title(type(error).__name__)
d.run()
exit(1)
except ImportError:
exit(type(error).__name__ + '\n\n' + msg)
def check_gtk():
try:
warnings.filterwarnings("error")
import gi
gi.require_version('Gtk', '3.0')
gi.require_version('PangoCairo', '1.0')
from gi.repository import Gtk
Gtk.init_check()
warnings.filterwarnings("always")
except Exception as err:
die(err, "Failed to initialize GTK. If you are running over ssh, "
"did you enable X forwarding and start ssh with -X?")
def check_gnuradio_import():
try:
from gnuradio import gr
except ImportError as err:
die(err, GR_IMPORT_ERROR_MESSAGE)
def check_blocks_path():
if 'GR_DONT_LOAD_PREFS' in os.environ and not os.environ.get('GRC_BLOCKS_PATH', ''):
die(EnvironmentError("No block definitions available"),
"Can't find block definitions. Use config.conf or GRC_BLOCKS_PATH.")
def do_all():
check_gnuradio_import()
check_gtk()
check_blocks_path()
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