Fix TypeError in QwtSymbol.drawSymbol by updating renderSymbols call

Fix #100

Author: PierreRaybaut

CHANGELOG.md

@@ -1,5 +1,9 @@
 # PythonQwt Releases
 
+## Version 0.14.6
+
+- Fixed [Issue #100](https://github.com/PlotPyStack/PythonQwt/issues/100) - TypeError in `QwtSymbol.drawSymbol` method due to outdated `renderSymbols` call
+
 ## Version 0.14.5
 
 - Merged [PR #98](https://github.com/PlotPyStack/PythonQwt/pull/98): Fix legend still being visible after removed

qwt/symbol.py

@@ -1104,8 +1104,7 @@ def drawSymbol(self, painter, point_or_rect):
             painter.scale(ratio, ratio)
             isPinPointEnabled = self.__data.isPinPointEnabled
             self.__data.isPinPointEnabled = False
-            pos = QPointF()
-            self.renderSymbols(painter, pos, 1)
+            self.renderSymbols(painter, [QPointF()])
             self.__data.isPinPointEnabled = isPinPointEnabled
             painter.restore()