1
Vote

ipython w/o pylab issue

description

switched from ipython mode to ipython w/o pylab,

entered:
import matplotlib.path as mpath
import matplotlib.patches as mpatches
import matplotlib.pyplot as plt


fig, ax = plt.subplots()

Path = mpath.Path
path_data = [
    (Path.MOVETO, (1.58, -2.57)),
    (Path.CURVE4, (0.35, -1.1)),
    (Path.CURVE4, (-1.75, 2.0)),
    (Path.CURVE4, (0.375, 2.0)),
    (Path.LINETO, (0.85, 1.15)),
    (Path.CURVE4, (2.2, 3.2)),
    (Path.CURVE4, (3, 0.05)),
    (Path.CURVE4, (2.0, -0.5)),
    (Path.CLOSEPOLY, (1.58, -2.57)),
    ]
codes, verts = zip(*path_data)
path = mpath.Path(verts, codes)
patch = mpatches.PathPatch(path, facecolor='r', alpha=0.5)
ax.add_patch(patch)

# plot control points and connecting lines
x, y = zip(*path.vertices)
line, = ax.plot(x, y, 'go-')

ax.grid()
ax.axis('equal')
then entered

plt.show(

and got the dump below.

note that if you paste the code above withe plt.show(), you get the pop out w the graph & all is well. however, if you do it up to the plt.show() line, and enter "plt.show(", you get the below trace or and repl exit.


<description>System.NullReferenceException: Object reference not set to an instance of an object.
at Microsoft.PythonTools.Intellisense.SignatureHelpSource.AugmentSignatureHelpSession(ISignatureHelpSession session, IList1 signatures)
at Microsoft.VisualStudio.Language.Intellisense.Implementation.SignatureHelpSession.Recalculate()
at Microsoft.VisualStudio.Language.Intellisense.Implementation.SignatureHelpSession.Start()
at Microsoft.VisualStudio.Language.Intellisense.Implementation.SignatureHelpBroker.TriggerSignatureHelp(ITextView textView)
at Microsoft.PythonTools.Intellisense.IntellisenseController.TriggerSignatureHelp()
at Microsoft.PythonTools.Intellisense.IntellisenseController.OpenParenStartSignatureSession()
at Microsoft.PythonTools.Intellisense.IntellisenseController.HandleChar(Char ch)
at Microsoft.PythonTools.Intellisense.IntellisenseController.Exec(Guid& pguidCmdGroup, UInt32 nCmdID, UInt32 nCmdexecopt, IntPtr pvaIn, IntPtr pvaOut)
at Microsoft.VisualStudio.Editor.Implementation.CommandChainNode.InnerExec(Guid& pguidCmdGroup, UInt32 nCmdID, UInt32 nCmdexecopt, IntPtr pvaIn, IntPtr pvaOut)
at Microsoft.VisualStudio.Editor.Implementation.CommandChainNode.Exec(Guid& pguidCmdGroup, UInt32 nCmdID, UInt32 nCmdexecopt, IntPtr pvaIn, IntPtr pvaOut)
at Microsoft.VisualStudio.Repl.ReplWindow.PreLanguageCommandFilterExec(Guid& pguidCmdGroup, UInt32 nCmdID, UInt32 nCmdexecopt, IntPtr pvaIn, IntPtr pvaOut)
at Microsoft.VisualStudio.Repl.ReplWindow.CommandFilter.Exec(Guid& pguidCmdGroup, UInt32 nCmdID, UInt32 nCmdexecopt, IntPtr pvaIn, IntPtr pvaOut)
at Microsoft.VisualStudio.Editor.Implementation.CommandChainNode.InnerExec(Guid& pguidCmdGroup, UInt32 nCmdID, UInt32 nCmdexecopt, IntPtr pvaIn, IntPtr pvaOut)
at Microsoft.VisualStudio.Editor.Implementation.SimpleTextViewWindow.Exec(Guid& pguidCmdGroup, UInt32 nCmdID, UInt32 nCmdexecopt, IntPtr pvaIn, IntPtr pvaOut)
at Microsoft.VisualStudio.Editor.Implementation.VsKeyboardFilter.SendCommand(Guid cmdGroup, UInt32 cmdID, Object inParam)
at Microsoft.VisualStudio.Editor.Implementation.VsKeyboardFilter.TextInput(TextCompositionEventArgs args)
at Microsoft.VisualStudio.Text.Editor.Implementation.KeyProcessorDispatcher.<DispatchTextInputEvents>b__0(KeyProcessor p, TextCompositionEventArgs args)
at Microsoft.VisualStudio.Text.Editor.Implementation.KeyProcessorDispatcher.<>c__DisplayClass1e
1.<Dispatch>b__1a()
at Microsoft.VisualStudio.Text.Utilities.GuardedOperations.CallExtensionPoint(Object errorSource, Action call)</description>
</entry>

comments