Finalized v0.2

Added copy function to be able to place files to outdir before modification.
Added verbose output about what it going to happen.
Added table header for output.
Removed obsolete "Processing..." message, as it was never visible.

exif_rad.py

@@ -38,6 +38,14 @@ parser.add_argument('-o', '--outdir', type=str, default='.',
 
 args = parser.parse_args()
 
+# Inform the user about what is going to happen
+if args.outdir == ".":
+    print('Modifying photos in place (overwrite)')
+else:
+    print('Modifying photos in', str(args.outdir), '(copy)')
+# Print table header
+print('{:<15} {:<20} {:<22}'.format('filename', 'date / time', 'Exif UserComment'))
+
 for srcphoto in args.photos:
     # Get image file name out of path
     photo_basename = os.path.basename(srcphoto)
@@ -45,10 +53,8 @@ for srcphoto in args.photos:
     # Decide whether to modify photo in place or to copy it to outdir first
     # Then set the destination file as 'photo' to work on
     if args.outdir == ".":
-        print('Going to overwrite source file')
         photo = srcphoto
     else:
-        print('Going to copy source file to destdir and modify it there')
         # be os aware and use the correct directory delimiter for destfile
         dstphoto = os.path.join(args.outdir, photo_basename)
         shutil.copy(srcphoto, dstphoto)
@@ -69,7 +75,7 @@ for srcphoto in args.photos:
         print('Processing file:', photo_basename, end='\r')
         for _, csvrawtime, csvrawcpm, _ in csvreader:
             csvtime = datetime.fromisoformat(csvrawtime)
-            # Process image if its timestamp is found in CSV log
+            # Process image if its timestamp is found in CSV log (compares 2 datetime objects)
             if csvtime == pictime:
                 rad = round(float(csvrawcpm) * args.sifactor, 2)
 
@@ -79,11 +85,11 @@ for srcphoto in args.photos:
                 metadata[key] = pyexiv2.ExifTag(key, new_comment)
                 
                 # print found radiation levels
-                print('{:<30} {:<20} {:<22}'.format(photo_basename, str(pictime), new_comment))
+                print('{:<15} {:<20} {:<22}'.format(photo_basename, str(pictime), new_comment))
                 # Write Exif tags to file
                 metadata.write()
                 break
         else:
-            print('{:<30} {:<20} {:<22}'.format(photo_basename, str(pictime), 'NOT FOUND!'))
+            print('{:<15} {:<20} {:<22}'.format(photo_basename, str(pictime), 'NOT FOUND!'))
     # close CSV file
     f.close()