Get Python Plugin Metadata

src/plugins/CutterPythonPlugin.cpp

@@ -3,7 +3,7 @@
 
 #include "CutterPythonPlugin.h"
 
-CutterPythonPlugin::CutterPythonPlugin(PyObject* pluginModule)
+CutterPythonPlugin::CutterPythonPlugin(PyObject *pluginModule)
 {
     this->pluginModule = pluginModule;
 
@@ -14,7 +14,28 @@ CutterPythonPlugin::CutterPythonPlugin(PyObject* pluginModule)
     pInstance = PyObject_GetAttrString(pluginModule, "plugin");
     if (!pInstance) {
         qWarning() << "Cannot find plugin instance.";
+        return;
     }
+
+    auto getStringAttr = [this](const char *attrName) -> QString {
+        if (!PyObject_HasAttrString(pInstance, attrName)) {
+            return QString();
+        }
+        PyObject *attr = PyObject_GetAttrString(pInstance, attrName);
+        if (!attr) {
+            PyErr_Print();
+            return QString();
+        }
+        if (!PyUnicode_Check(attr)) {
+            return QString();
+        }
+        return QString::fromUtf8(PyUnicode_AsUTF8(attr));
+    };
+
+    name = getStringAttr("name");
+    description = getStringAttr("description");
+    version = getStringAttr("version");
+    author = getStringAttr("author");
 }
 
 CutterPythonPlugin::~CutterPythonPlugin()

src/plugins/pluginSample.py

@@ -3,12 +3,14 @@ from cutter_plugin import CutterPlugin
 from PySide2 import QtCore, QtWidgets
 import shiboken2
 
+
 class CutterSamplePlugin(CutterPlugin):
+    name = "SamplePlugin"
+    description = "A sample plugin written in python."
+    version = "1.0"
+    author = "xarkes"
+
     def setupPlugin(self):
-        self.name = 'SamplePlugin'
-        self.description = 'A sample plugin written in python.'
-        self.version = '1.0'
-        self.author = 'xarkes'
         self.app = QtCore.QCoreApplication.instance()
 
     def setupInterface(self):
@@ -28,4 +30,3 @@ class CutterSamplePlugin(CutterPlugin):
 
 # Instantiate our plugin
 plugin = CutterSamplePlugin()
-

src/python/cutter_plugin.py

@@ -1,11 +1,11 @@
 from abc import ABC, abstractmethod
 
+
 class CutterPlugin(ABC):
     name = ''
     description = ''
     version = ''
     author = ''
-    app = None
 
     @abstractmethod
     def setupPlugin(self):