Small refactors

mantidimaging/core/reconstruct/cil_recon.py

@@ -66,7 +66,7 @@ def __call__(self, algo: Algorithm) -> None:
             if isinstance(algo, PDHG):
                 forward_projection = algo.operator.direct(algo.solution)[1].as_array()
                 data = algo.f[1].b.as_array()
-                if len(forward_projection.shape) == 3:
+                if forward_projection.ndim == 3:
                     # For a full 3D recon, just select the middle slice
                     slice = forward_projection.shape[0] // 2
                     forward_projection = forward_projection[slice]

mantidimaging/gui/dialogs/async_task/presenter.py

@@ -77,11 +77,12 @@ def progress_update(self) -> None:
         extra_info = progress_info[-1].extra_info
         self.progress_updated.emit(self.progress.completion(), msg if msg is not None else '')
 
-        if extra_info and 'losses' in extra_info:
-            self.update_progress_plot(extra_info['iterations'], extra_info['losses'])
+        if extra_info:
+            if 'losses' in extra_info:
+                self.update_progress_plot(extra_info['iterations'], extra_info['losses'])
 
-        if extra_info and 'residual' in extra_info:
-            self.progress_residual_plot_updated.emit(extra_info["residual"])
+            if 'residual' in extra_info:
+                self.progress_residual_plot_updated.emit(extra_info["residual"])
 
     def show_stop_button(self, show: bool = False) -> None:
         self.view.show_cancel_button(show)