Initial commit

* Examples work
* setup.py kinda updasted
* Fork of txmongo but with new pymongo embedded

asyncio_mongo/_bson/py3compat.py

@@ -0,0 +1,60 @@
+# Copyright 2009-2012 10gen, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you
+# may not use this file except in compliance with the License.  You
+# may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.  See the License for the specific language governing
+# permissions and limitations under the License.
+
+"""Utility functions and definitions for python3 compatibility."""
+
+import sys
+
+PY3 = sys.version_info[0] == 3
+
+if PY3:
+    import codecs
+
+    from io import BytesIO as StringIO
+
+    def b(s):
+        # BSON and socket operations deal in binary data. In
+        # python 3 that means instances of `bytes`. In python
+        # 2.6 and 2.7 you can create an alias for `bytes` using
+        # the b prefix (e.g. b'foo'). Python 2.4 and 2.5 don't
+        # provide this marker so we provide this compat function.
+        # In python 3.x b('foo') results in b'foo'.
+        # See http://python3porting.com/problems.html#nicer-solutions
+        return codecs.latin_1_encode(s)[0]
+
+    def bytes_from_hex(h):
+        return bytes.fromhex(h)
+
+    binary_type = bytes
+    text_type   = str
+
+else:
+    try:
+        from io import StringIO
+    except ImportError:
+        from io import StringIO
+
+    def b(s):
+        # See comments above. In python 2.x b('foo') is just 'foo'.
+        return s
+
+    def bytes_from_hex(h):
+        return h.decode('hex')
+
+    binary_type = str
+    # 2to3 will convert this to "str". That's okay
+    # since we won't ever get here under python3.
+    text_type   = str
+
+string_types = (binary_type, text_type)