Mercurial Repositories > eric / file comparison
comparison: Toolbox/PyQt4ImportHook.py
Toolbox/PyQt4ImportHook.py
- changeset 3776
- ccb6eacb50e5
- child 3777
- 0c47cbb5b199
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| 3774:285e5aa860a0 | 3776:ccb6eacb50e5 |
|---|---|
| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2014 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 try: | |
| 7 import PyQt5 # __IGNORE_WARNING__ | |
| 8 except ImportError: | |
| 9 import sys | |
| 10 | |
| 11 # TODO: adapt this for Python2 | |
| 12 class PyQt4Importer(object): | |
| 13 def __init__(self): | |
| 14 """ | |
| 15 Constructor | |
| 16 """ | |
| 17 self.__path = None | |
| 18 | |
| 19 def find_module(self, fullname, path=None): | |
| 20 """ | |
| 21 Public method returning the module loader. | |
| 22 | |
| 23 @param fullname name of the module to be loaded (string) | |
| 24 @param path path to resolve the module name (string) | |
| 25 @return module loader object | |
| 26 """ | |
| 27 if fullname.startswith("PyQt5"): | |
| 28 self.__path = path | |
| 29 return self | |
| 30 | |
| 31 return None | |
| 32 | |
| 33 def load_module(self, fullname): | |
| 34 """ | |
| 35 Public method to load a module. | |
| 36 | |
| 37 @param fullname name of the module to be loaded (string) | |
| 38 @return reference to the loaded module (module) | |
| 39 """ | |
| 40 if fullname in ["PyQt5.QtWidgets", "PyQt5.QtPrintSupport"]: | |
| 41 newname = "PyQt4.QtGui" | |
| 42 elif fullname in ["PyQt5.QtWebKitWidgets"]: | |
| 43 newname = "PyQt4.QtWebKit" | |
| 44 else: | |
| 45 newname = fullname.replace("PyQt5", "PyQt4") | |
| 46 | |
| 47 import importlib | |
| 48 loader = importlib.find_loader(newname, self.__path) | |
| 49 module = loader.load_module(newname) | |
| 50 sys.modules[fullname] = module | |
| 51 if fullname == "PyQt5.QtCore": | |
| 52 import PyQt4.QtGui | |
| 53 module.qInstallMessageHandler = module.qInstallMsgHandler | |
| 54 module.QItemSelectionModel = PyQt4.QtGui.QItemSelectionModel | |
| 55 module.QItemSelection = PyQt4.QtGui.QItemSelection | |
| 56 module.QSortFilterProxyModel = \ | |
| 57 PyQt4.QtGui.QSortFilterProxyModel | |
| 58 module.QAbstractProxyModel = PyQt4.QtGui.QAbstractProxyModel | |
| 59 module.QStringListModel = PyQt4.QtGui.QStringListModel | |
| 60 return module | |
| 61 | |
| 62 sys.meta_path.insert(0, PyQt4Importer()) |
