Misc cleanup (#73)

* Stop previously running zeroconf instances

* Lots of formatting fixes

* Use f-strings for time delta

* More line fixes

* Update requirements.txt

* More misc cleanup

* Simplify README.md

src/ui/add_job.py

@@ -21,6 +21,12 @@ from src.utilities.zeroconf_server import ZeroconfServer
 class NewRenderJobForm(QWidget):
     def __init__(self, project_path=None):
         super().__init__()
+        self.notes_group = None
+        self.frame_rate_input = None
+        self.resolution_x_input = None
+        self.renderer_group = None
+        self.output_settings_group = None
+        self.resolution_y_input = None
         self.project_path = project_path
 
         # UI
@@ -358,7 +364,7 @@ class NewRenderJobForm(QWidget):
                     text_box = QLineEdit()
                     h_layout.addWidget(text_box)
                 self.renderer_options_layout.addLayout(h_layout)
-        except AttributeError as e:
+        except AttributeError:
             pass
 
     def toggle_renderer_enablement(self, enabled=False):

src/ui/main_window.py

@@ -48,6 +48,11 @@ class MainWindow(QMainWindow):
         super().__init__()
 
         # Load the queue
+        self.job_list_view = None
+        self.server_info_ram = None
+        self.server_info_cpu = None
+        self.server_info_os = None
+        self.server_info_hostname = None
         self.engine_browser_window = None
         self.server_info_group = None
         self.current_hostname = None
@@ -300,7 +305,7 @@ class MainWindow(QMainWindow):
             except ConnectionError as e:
                 logger.error(f"Connection error fetching image: {e}")
             except Exception as e:
-                logger.error(f"Error fetching image: {e}")
+                logger.exception(f"Error fetching image: {e}")
 
         job_id = self.selected_job_ids()[0] if self.selected_job_ids() else None
         local_server = is_localhost(self.current_hostname)
@@ -339,12 +344,15 @@ class MainWindow(QMainWindow):
             self.topbar.actions_call['Open Files'].setVisible(False)
 
     def selected_job_ids(self):
-        selected_rows = self.job_list_view.selectionModel().selectedRows()
-        job_ids = []
-        for selected_row in selected_rows:
-            id_item = self.job_list_view.item(selected_row.row(), 0)
-            job_ids.append(id_item.text())
-        return job_ids
+        try:
+            selected_rows = self.job_list_view.selectionModel().selectedRows()
+            job_ids = []
+            for selected_row in selected_rows:
+                id_item = self.job_list_view.item(selected_row.row(), 0)
+                job_ids.append(id_item.text())
+            return job_ids
+        except AttributeError:
+            return []
 
     def refresh_job_headers(self):
         self.job_list_view.setHorizontalHeaderLabels(["ID", "Name", "Renderer", "Priority", "Status",