pep8: Some modifications to respect pep8 standard code.

src/Checker/Mage.py

@@ -27,8 +27,9 @@ from Checker.Checker import AbstractModelChecker, STATUS
 
 _translate = QCoreApplication.translate
 
+
 class MageNetworkGraphChecker(AbstractModelChecker):
-    def __init__(self, connectivity = True):
+    def __init__(self, connectivity=True):
         super(MageNetworkGraphChecker, self).__init__()
 
         self._mode_conn = connectivity
@@ -38,8 +39,10 @@ class MageNetworkGraphChecker(AbstractModelChecker):
         else:
             mode = "cycle"
 
-        self._name = _translate("Checker", f"Mage network graph {mode} checker")
-        self._description = _translate("Checker", "Check if the network graph is valid")
+        self._name = _translate(
+            "Checker", f"Mage network graph {mode} checker")
+        self._description = _translate(
+            "Checker", "Check if the network graph is valid")
 
     @timer
     def _connectivity(self, summary, status, graph):