source: src/mlx/common.py@ 970:440095aa63dc

python3
Last change on this file since 970:440095aa63dc was 955:d98b211d32fa, checked in by István Váradi <ivaradi@…>, 5 years ago

Fixed pickling of PIREPs saved with Python 2 (re #347).

File size: 2.2 KB
Line 
1import os
2
3#-----------------------------------------------------------------------------
4
5## @package mlx.common
6#
7# Common definitions to be used by both the GUI and possible other parts
8#
9# The main purpose of this module is to import Gtk+2 or 3 and related modules
10# and provide common names for them. There is a similator module in the GUI
11# part (\ref mlx.gui.common), which contains the GUI-specific names. This one
12# contains only what is used by other modules as well.
13# The variable \c pygobject tells which version of Gtk is being used. If it is
14# \c True, Gtk+ 3 is used via the PyGObject interface. Otherwise Gtk+ 2 is
15# used, which is the default on Windows or when the \c FORCE_PYGTK environment
16# variable is set.
17
18#---------------------------------------------------------------------------------------
19
20MAVA_BASE_URL = os.environ.get("MAVA_BASE_URL", "http://virtualairlines.hu")
21
22#-------------------------------------------------------------------------------
23
24if "FORCE_PYGTK" in os.environ:
25 print("Using PyGTK")
26 pygobject = False
27 import gobject
28else:
29 print("Using PyGObject")
30 pygobject = True
31
32 from gi.repository import GObject as gobject
33
34#-------------------------------------------------------------------------------
35
36def fixUnpickledValue(value):
37 """Fix the given unpickled value.
38
39 It handles some basic data, like scalars, lists and tuples. If it
40 encounters byte arrays, they are decoded as 'utf-8' strings."""
41 if isinstance(value, bytes):
42 return str(value, "utf-8")
43 elif isinstance(value, list):
44 return [fixUnpickledValue(v) for v in value]
45 elif isinstance(value, tuple):
46 return tuple([fixUnpickledValue(v) for v in value])
47 else:
48 return value
49
50#-------------------------------------------------------------------------------
51
52def fixUnpickled(state):
53 """Fix the given unpickled state.
54
55 It checks keys and values, and if it encounters any byte arrays, they are
56 decoded with the encoding 'utf-8'. It returns a new dictionary.
57 """
58 newDict = {}
59 for (key, value) in iter(state.items()):
60 newDict[fixUnpickledValue(key)] = fixUnpickledValue(value)
61
62 return newDict
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