Add ALT text to images

Correct static methods
Tidy up code

gallery/metadata/__init__.py

@@ -1,5 +1,5 @@
 """
-OnlyLegs - Metatada Parser
+OnlyLegs - Metadata Parser
 Parse metadata from images if available
 otherwise get some basic information from the file
 """
@@ -11,6 +11,7 @@ from PIL.ExifTags import TAGS
 from .helpers import *
 from .mapping import *
 
+
 class Metadata:
     """
     Metadata parser
@@ -53,7 +54,8 @@ class Metadata:
             return None
         return self.format_data(self.encoded)
 
-    def format_data(self, encoded_exif): # pylint: disable=R0912 # For now, this is fine
+    @staticmethod
+    def format_data(encoded_exif):
         """
         Formats the data into a dictionary
         """
@@ -66,15 +68,15 @@ class Metadata:
         
         # Thanks chatGPT xP
         for key, value in encoded_exif.items():            
-            for mapping_name, mapping in EXIF_MAPPING:
-                if key in mapping:
-                    if len(mapping[key]) == 2:
-                        exif[mapping_name][mapping[key][0]] = {
+            for mapping_name, mapping_val in EXIF_MAPPING:
+                if key in mapping_val:
+                    if len(mapping_val[key]) == 2:
+                        exif[mapping_name][mapping_val[key][0]] = {
                             'raw': value,
-                            'formatted': getattr(helpers, mapping[key][1])(value),
+                            'formatted': getattr(helpers, mapping_val[key][1])(value),
                         }
                     else:
-                        exif[mapping_name][mapping[key][0]] = {
+                        exif[mapping_name][mapping_val[key][0]] = {
                             'raw': value,
                         }
 

gallery/metadata/helpers.py

@@ -4,6 +4,7 @@ Metadata formatting helpers
 """
 from datetime import datetime
 
+
 def human_size(value):
     """
     Formats the size of a file in a human readable format
@@ -276,7 +277,10 @@ def lens_specification(value):
     """
     Maps the value of the lens specification to a human readable format
     """
-    return str(value[0] / value[1]) + 'mm - ' + str(value[2] / value[3]) + 'mm'
+    try:
+        return str(value[0] / value[1]) + 'mm - ' + str(value[2] / value[3]) + 'mm'
+    except Exception as err:
+        return None
 
 
 def compression_type(value):

gallery/metadata/mapping.py

@@ -61,4 +61,9 @@ FILE_MAPPING = {
     'RatingPercent':    ['Rating Percent', 'rating_percent'],
 }
 
-EXIF_MAPPING = [('Photographer', PHOTOGRAHER_MAPPING),('Camera', CAMERA_MAPPING),('Software', SOFTWARE_MAPPING),('File', FILE_MAPPING)]
+EXIF_MAPPING = [
+    ('Photographer', PHOTOGRAHER_MAPPING),
+    ('Camera', CAMERA_MAPPING),
+    ('Software', SOFTWARE_MAPPING),
+    ('File', FILE_MAPPING)
+]