RE #26846 PEP8 fixes

scripts/Engineering/gui/engineering_diffraction/tabs/calibration/model.py

@@ -123,7 +123,8 @@ class CalibrationModel(object):
             difc_zero_plot.gca().legend(("Peaks Fitted", "DifC/TZero Fitted Straight Line"))
             difc_zero_plot.gca().set_xlabel("Expected Peaks Centre(dSpacing, A)")
 
-    def load_ceria(self, ceria_run_no):
+    @staticmethod
+    def load_ceria(ceria_run_no):
         try:
             return Load(Filename=ceria_run_no, OutputWorkspace="engggui_calibration_sample_ws")
         except Exception as e:

scripts/Engineering/gui/engineering_diffraction/tabs/calibration/presenter.py

@@ -7,11 +7,10 @@
 # pylint: disable=invalid-name
 from __future__ import (absolute_import, division, print_function)
 
-from time import sleep
-
 from mantidqt.utils.asynchronous import AsyncTask
 from mantid.simpleapi import logger
 
+
 class CalibrationPresenter(object):
     def __init__(self, model, view):
         self.model = model

scripts/Engineering_Diffraction_2.py

@@ -14,6 +14,14 @@ Name = "Engineering_Diffraction"
 
 if 'engineering_diffraction' in globals():
     eng_diff = globals()['engineering_diffraction']
+    if not eng_diff.isHidden():
+        eng_diff.setWindowState(
+            eng_diff.windowState(
+            ) & ~QtCore.Qt.WindowMinimized | QtCore.Qt.WindowActive)
+        eng_diff.activateWindow()
+    else:
+        eng_diff = EngineeringDiffractionGui()
+        eng_diff.show()
 else:
     eng_diff = EngineeringDiffractionGui()
     eng_diff.show()