try to support older versions of PIL (Debian Wheezy..)

git-svn-id: https://xpra.org/svn/Xpra/trunk@13184 3bb7dfac-3a0b-4e04-842a-767bc560f471

src/xpra/codecs/pillow/__init__.py

@@ -5,9 +5,10 @@
 
 import os
 import logging
+from xpra.log import Logger
+
 PIL_DEBUG = os.environ.get("XPRA_PIL_DEBUG", "0")=="1"
 if PIL_DEBUG:
-    from xpra.log import Logger
     log = Logger("encoder", "pillow")
     log.info("enabling PIL.DEBUG")
     level = logging.DEBUG
@@ -23,8 +24,15 @@
 import PIL                      #@UnresolvedImport
 from PIL import Image           #@UnresolvedImport
 assert PIL is not None and Image is not None, "failed to load Pillow"
-PIL_VERSION = PIL.PILLOW_VERSION
+try:
+    PIL_VERSION = PIL.PILLOW_VERSION
+except:
+    PIL_VERSION = Image.VERSION
 if hasattr(Image, "DEBUG"):
     #for older versions (pre 3.0), use Image.DEBUG flag:
     Image.DEBUG = int(PIL_DEBUG)
+if PIL_VERSION<'2':
+    log = Logger("encoder", "pillow")
+    log.warn("Warning: your version of Python Imaging Library is well out of date")
+    log.warn(" version %s is not supported, your mileage may vary", PIL_VERSION)
 Image.init()

src/xpra/codecs/pillow/decode.py

@@ -8,10 +8,11 @@
 
 import PIL                      #@UnresolvedImport
 from PIL import Image           #@UnresolvedImport
+from xpra.codecs.pillow import PIL_VERSION
 
 
 def get_version():
-    return PIL.PILLOW_VERSION
+    return PIL_VERSION
 
 def get_type():
     return "pillow"

src/xpra/codecs/pillow/encode.py

@@ -14,14 +14,14 @@
 
 import PIL                      #@UnresolvedImport
 from PIL import Image           #@UnresolvedImport
-PIL_VERSION = PIL.PILLOW_VERSION
+from xpra.codecs.pillow import PIL_VERSION
 PIL_can_optimize = PIL_VERSION and PIL_VERSION>="2.2"
 
 SAVE_TO_FILE = os.environ.get("XPRA_SAVE_TO_FILE")
 
 
 def get_version():
-    return PIL.PILLOW_VERSION
+    return PIL_VERSION
 
 def get_type():
     return "pillow"