gnuradio-companion/gui/Platform.py
Oleksandr Kravchuk 43e6a43e3d python: Remove unnecessary 'from __future__ import'
All of the removed `from __future__ import` were needed in older
versions of Python (mostly 2.5.x and below) but later became mandatory
in most versions of Python 3 hence are not necessary anymore.

More specifically, according to __future__.py[1]:
- unicode_literals is part of Python since versions 2.6.0 and 3.0.0;
- print_function is part of Python since versions 2.6.0 and 3.0.0;
- absolute_import is part of Python since versions 2.5.0 and 3.0.0;
- division is part of Python since versions 2.2.0 and 3.0.0;

Get rid of those unnecessary imports to slightly clean up the codebase.

[1] https://github.com/python/cpython/blob/master/Lib/__future__.py
2020-08-03 11:40:27 +02:00

66 lines
2.1 KiB
Python

"""
Copyright 2008, 2009 Free Software Foundation, Inc.
This file is part of GNU Radio
SPDX-License-Identifier: GPL-2.0-or-later
"""
import sys
import os
from .Config import Config
from . import canvas
from ..core.platform import Platform as CorePlatform
from ..core.utils.backports import ChainMap
class Platform(CorePlatform):
def __init__(self, *args, **kwargs):
CorePlatform.__init__(self, *args, **kwargs)
# Ensure conf directories
gui_prefs_file = self.config.gui_prefs_file
if not os.path.exists(os.path.dirname(gui_prefs_file)):
os.mkdir(os.path.dirname(gui_prefs_file))
self._move_old_pref_file()
def get_prefs_file(self):
return self.config.gui_prefs_file
def _move_old_pref_file(self):
gui_prefs_file = self.config.gui_prefs_file
old_gui_prefs_file = os.environ.get(
'GRC_PREFS_PATH', os.path.expanduser('~/.grc'))
if gui_prefs_file == old_gui_prefs_file:
return # prefs file overridden with env var
if os.path.exists(old_gui_prefs_file) and not os.path.exists(gui_prefs_file):
try:
import shutil
shutil.move(old_gui_prefs_file, gui_prefs_file)
except Exception as e:
print(e, file=sys.stderr)
##############################################
# Factories
##############################################
Config = Config
FlowGraph = canvas.FlowGraph
Connection = canvas.Connection
def new_block_class(self, **data):
cls = CorePlatform.new_block_class(self, **data)
return canvas.Block.make_cls_with_base(cls)
block_classes_build_in = {key: canvas.Block.make_cls_with_base(cls)
for key, cls in CorePlatform.block_classes_build_in.items()}
block_classes = ChainMap({}, block_classes_build_in)
port_classes = {key: canvas.Port.make_cls_with_base(cls)
for key, cls in CorePlatform.port_classes.items()}
param_classes = {key: canvas.Param.make_cls_with_base(cls)
for key, cls in CorePlatform.param_classes.items()}