Add basic logging to PhotosService

pyicloud/services/photos.py

@@ -1,5 +1,6 @@
 import sys
 import json
+import logging
 
 from datetime import datetime
 from base64 import b64decode
@@ -13,6 +14,8 @@ from pyicloud.exceptions import (
 from future.moves.urllib.parse import unquote
 from future.utils import listvalues, listitems
 
+logger = logging.getLogger(__name__)
+
 
 class PhotosService(object):
     """ The 'Photos' iCloud service."""
@@ -66,6 +69,7 @@ class PhotosService(object):
         return self.albums['All Photos']
 
     def _fetch_asset_data_for(self, client_ids):
+        logger.debug("Fetching data for client IDs %s", client_ids)
         client_ids = [cid for cid in client_ids
                       if cid not in self._photo_assets]
 
@@ -131,6 +135,8 @@ class PhotoAlbum(object):
         return self._photo_assets
 
     def _parse_binary_feed(self, feed):
+        logger.debug("Parsing binary feed %s", feed)
+
         binaryfeed = bytearray(b64decode(feed))
         bitstream = ConstBitStream(binaryfeed)
 
@@ -170,6 +176,9 @@ class PhotoAlbum(object):
             range_length = bitstream.read("uint:24")
             range_end = range_start + range_length
 
+            logger.debug("Decoding indexes [%s-%s) (length %s)",
+                         range_start, range_end, range_length)
+
             previous_asset_id = 0
             for index in range(range_start, range_end):
                 aspect_ratio = ASPECT_RATIOS[bitstream.read("uint:4")]