Use Version tag of level.dat to display version in world list

src/mceditlib/anvil/adapter.py

@@ -345,6 +345,11 @@ class AnvilChunkData(object):
 
 # --- World info ---
 
+class WorldVersionRef(nbtattr.NBTCompoundRef):
+    Id = nbtattr.NBTAttr('Id', 'i')
+    Name = nbtattr.NBTAttr('Name', 's')
+    Snapshot = nbtattr.NBTAttr('Snapshot', 'b')
+
 
 class AnvilWorldMetadata(object):
 
@@ -377,6 +382,8 @@ class AnvilWorldMetadata(object):
 
     Spawn = nbtattr.KeyedVectorAttr('SpawnX', 'SpawnY', 'SpawnZ', nbt.TAG_Int)
 
+    Version = nbtattr.NBTCompoundAttr('Version', WorldVersionRef)
+
     def is1_8World(self):
         # Minecraft 1.8 adds a dozen tags to level.dat/Data. These tags are removed if
         # the world is played in 1.7 (and all of the items are removed too!)
@@ -502,8 +509,17 @@ class AnvilWorldAdapter(object):
                 lastPlayedTime = 0
 
             version = "Unknown Version"
+            try:
                 try:
                     metadata = AnvilWorldMetadata(levelTag)
+                    versionTag = metadata.Version
+                    if versionTag.Snapshot:
+                        version = "Minecraft Snapshot " + versionTag.Name
+                    else:
+                        version = "Minecraft " + versionTag.Name
+
+                except Exception as e:
+
                     stackVersion = VERSION_1_8 if metadata.is1_8World() else VERSION_1_7
 
                     if stackVersion == VERSION_1_7: