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POmatplotlib navtoolbar doesn't realize in wx 2.9 (Mac OS X)
 

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  1. POmatplotlib navtoolbar doesn't realize in wx 2.9 (Mac OS X)
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    <p>The following piece of code produces a matplotlib NavToolbar2 at the top of a frame as expected when run on wxPython 2.8.x, Python 2.5.4/2.6, Matplotlib 0.99.x.</p> <p>However, I've recently moved to Python 2.7, and wxPython 2.9.1 in an attempt to support OS X in 64-bit. It's under this environment that the code below produces an empty toolbar:</p> <p><img src="https://i.stack.imgur.com/zefAB.png" alt="empty toolbar"></p> <p>I noticed when building matplotlib that it said something about not needing WxAgg for wx 2.9 and up, might this be the problem? All I've tried so far is to replace <code>FigureCanvasWxAgg</code> with <code>FigureCanvasWx</code> and <code>NavigationToolbar2WxAgg</code> with <code>NavigationToolbar2Wx</code>. No luck.</p> <p>Any ideas what's going on?</p> <pre><code>import wx from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg, NavigationToolbar2WxAgg import matplotlib as mpl app = wx.PySimpleApp() f = wx.Frame(None) fig = mpl.figure.Figure() p = FigureCanvasWxAgg(f, -1, fig) tb = NavigationToolbar2WxAgg(fig.canvas) f.SetToolBar(tb) tb.Realize() f.Show() app.MainLoop() </code></pre> <p>One more thing... if I replace the NavigationToolbar2WxAgg with my own custom navtoolbar class (code at first answer on this thread: <a href="https://stackoverflow.com/questions/4740988/add-new-navigate-modes-in-matplotlib">Add new navigate modes in matplotlib</a>), the whole thing crashes unless I remove <code>tb.Realize()</code>.</p> <pre><code>2011-05-25 08:21:18.354 Python[48013:60f] *** Assertion failure in -[NSToolbar _itemAtIndex:], /SourceCache/AppKit/AppKit-1038.35/Toolbar.subproj/NSToolbar.m:1227 2011-05-25 08:21:18.356 Python[48013:60f] An uncaught exception was raised 2011-05-25 08:21:18.356 Python[48013:60f] Invalid parameter not satisfying: index&gt;=0 &amp;&amp; index&lt;[self _numberOfItems] 2011-05-25 08:21:18.358 Python[48013:60f] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Invalid parameter not satisfying: index&gt;=0 &amp;&amp; index&lt;[self _numberOfItems]' *** Call stack at first throw: ( 0 CoreFoundation 0x00007fff868ef7b4 __exceptionPreprocess + 180 1 libobjc.A.dylib 0x00007fff83e9b0f3 objc_exception_throw + 45 2 CoreFoundation 0x00007fff868ef5d7 +[NSException raise:format:arguments:] + 103 3 Foundation 0x00007fff86d7c77e -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 198 4 AppKit 0x00007fff806f44a9 -[NSToolbar _itemAtIndex:] + 158 5 AppKit 0x00007fff806f3e94 -[NSToolbar _removeItemAtIndex:notifyDelegate:notifyView:notifyFamilyAndUpdateDefaults:] + 56 6 libwx_osx_cocoau-2.9.1.0.0.dylib 0x0000000101aea2a6 _ZN9wxToolBar7RealizeEv + 1430 7 _controls_.so 0x00000001048d4b76 _wrap_ToolBarBase_Realize + 102 8 .Python 0x00000001000ca81a PyEval_EvalFrameEx + 23498 9 .Python 0x00000001000cc8c5 PyEval_EvalCodeEx + 1733 10 .Python 0x00000001000ca9bf PyEval_EvalFrameEx + 23919 11 .Python 0x00000001000cc8c5 PyEval_EvalCodeEx + 1733 12 .Python 0x00000001000cb0c8 PyEval_EvalFrameEx + 25720 13 .Python 0x00000001000cc8c5 PyEval_EvalCodeEx + 1733 14 .Python 0x00000001000ca9bf PyEval_EvalFrameEx + 23919 15 .Python 0x00000001000cb2a6 PyEval_EvalFrameEx + 26198 16 .Python 0x00000001000cb2a6 PyEval_EvalFrameEx + 26198 17 .Python 0x00000001000cc8c5 PyEval_EvalCodeEx + 1733 18 .Python 0x00000001000ca9bf PyEval_EvalFrameEx + 23919 19 .Python 0x00000001000cb2a6 PyEval_EvalFrameEx + 26198 20 .Python 0x00000001000cc8c5 PyEval_EvalCodeEx + 1733 21 .Python 0x00000001000ccbc6 PyEval_EvalCode + 54 22 .Python 0x00000001000f0c7e PyRun_FileExFlags + 174 23 .Python 0x00000001000f1aa1 PyRun_SimpleFileExFlags + 817 24 .Python 0x00000001001093d9 Py_Main + 2825 25 Python 0x0000000100000f54 0x0 + 4294971220 ) terminate called after throwing an instance of 'NSException' </code></pre>
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