Improve linting of printer class

src/printer.py

@@ -1,4 +1,6 @@
-
+"""
+This class manages connexion to a Printer
+"""
 # import brother_ql
 from time import sleep
 import os.path
@@ -10,7 +12,7 @@ import numpy as np
 import escpos.printer
 
 
-class Printer(object):
+class Printer():
     """
     # The connection is based on the ESC/POS library
 
@@ -31,7 +33,7 @@ class Printer(object):
     ready = False
 
     def __init__(self, app, device_id, vendor_id):
-        super(Printer, self).__init__()
+        super().__init__()
         self.app = app
         self.ready = False
         self.printer = None
@@ -99,7 +101,6 @@ class Printer(object):
                     waiting_elapsed,
                     str(e),
                 )
-                pass
 
             sleep(1)
             waiting_elapsed -= 1
@@ -207,7 +208,7 @@ class Printer(object):
                 + str(path)
                 + " wasn't found. Please try again."
             )
-        else:
+
         self.app.logger.debug("Printing file from " + str(path))
 
         if process:
@@ -309,7 +310,8 @@ def _process_image(self, path):
         self.app.logger.debug("Resized the image")
 
         # # Convert to grayscale for dithering
-        # dithered_img = original_img.convert("L").convert("1")  # Dithering using default method (Floyd–Steinberg)
+        # dithered_img = original_img.convert("L").convert("1")
+        # Dithering using default method (Floyd–Steinberg)
         # self.app.logger.debug("Dithered the image")
 
         # Compute brightness of original image (grayscale average)