Update Evaluator.py

issue #157

Author: rafaelpadilla

lib/Evaluator.py

@@ -284,7 +284,7 @@ def PlotPrecisionRecallCurve(self,
             #                 arrowprops=dict(arrowstyle="->", connectionstyle="arc3"),
             #                 bbox=box)
             if savePath is not None:
-                plt.savefig(os.path.join(savePath, classId + '.png'))
+                plt.savefig(os.path.join(savePath, str(classId) + '.png'))
             if showGraphic is True:
                 plt.show()
                 # plt.waitforbuttonpress()