Add Python 3 modules, and more Python 2 modules.

Also, sort names alphabetically and add module docstrings.

python2/zlib.py

@@ -1,28 +1,29 @@
+"""Stub file for the 'zlib' module."""
 # This is an autogenerated file. It serves as a starting point
 # for a more percise manual annotation of this module.
 # Feel free to edit the source below, but remove this header when you do.
 
-def compress(a: Nothing, *args, **kwargs) -> str:
-    raise MemoryError()
+def adler32(a, *args, **kwargs) -> int: pass
 
-def crc32(a: Nothing, *args, **kwargs) -> int: pass
+def compress(a, *args, **kwargs) -> str:
+    raise MemoryError()
 
 def compressobj(*args, **kwargs) -> object:
-    raise MemoryError()
     raise ValueError()
+    raise MemoryError()
 
-def adler32(a: Nothing, *args, **kwargs) -> int: pass
+def crc32(a, *args, **kwargs) -> int: pass
+
+def decompress(a, *args, **kwargs) -> str:
+    raise MemoryError()
 
 def decompressobj(*args, **kwargs) -> object:
-    raise MemoryError()
     raise ValueError()
-
-def decompress(a: Nothing, *args, **kwargs) -> str:
     raise MemoryError()
 
 
-class Decompress(object):
-    pass
-
 class Compress(object):
     pass
+
+class Decompress(object):
+    pass