Feature/issue 24 support the latest cython

proton_driver/__init__.py

@@ -3,7 +3,7 @@
 from .dbapi import connect
 
 
-VERSION = (0, 2, 7)
+VERSION = (0, 2, 9)
 __version__ = '.'.join(str(x) for x in VERSION)
 
 __all__ = ['Client', 'connect']

proton_driver/columns/intcolumn.py

@@ -103,8 +103,11 @@ class LargeIntColumn(IntColumn):
     format = 'Q'  # We manually deal with sign in read/write.
     factor = None
 
-    to_quads = None
-    from_quads = None
+    def to_quads(self, *args, **kwargs):
+        raise NotImplementedError
+
+    def from_quads(self, *args, **kwargs):
+        raise NotImplementedError
 
     def write_items(self, items, buf):
         n_items = len(items)
@@ -126,32 +129,44 @@ class Int128Column(LargeIntColumn):
     int_size = 16
     factor = 2
 
-    to_quads = int128_to_quads
-    from_quads = int128_from_quads
+    def to_quads(self, *args, **kwargs):
+        return int128_to_quads(*args, **kwargs)
+
+    def from_quads(self, *args, **kwargs):
+        return int128_from_quads(*args, **kwargs)
 
 
 class UInt128Column(LargeIntColumn):
     ch_type = 'uint128'
     int_size = 16
     factor = 2
 
-    to_quads = uint128_to_quads
-    from_quads = uint128_from_quads
+    def to_quads(self, *args, **kwargs):
+        return uint128_to_quads(*args, **kwargs)
+
+    def from_quads(self, *args, **kwargs):
+        return uint128_from_quads(*args, **kwargs)
 
 
 class Int256Column(LargeIntColumn):
     ch_type = 'int256'
     int_size = 32
     factor = 4
 
-    to_quads = int256_to_quads
-    from_quads = int256_from_quads
+    def to_quads(self, *args, **kwargs):
+        return int256_to_quads(*args, **kwargs)
+
+    def from_quads(self, *args, **kwargs):
+        return int256_from_quads(*args, **kwargs)
 
 
 class UInt256Column(LargeIntColumn):
     ch_type = 'uint256'
     int_size = 32
     factor = 4
 
-    to_quads = uint256_to_quads
-    from_quads = uint256_from_quads
+    def to_quads(self, *args, **kwargs):
+        return uint256_to_quads(*args, **kwargs)
+
+    def from_quads(self, *args, **kwargs):
+        return uint256_from_quads(*args, **kwargs)