Compatibility with python 3.2

Now all the python 2/3 compatibility code is in elasticsearch.compat
Fixes #52

elasticsearch/client/__init__.py

@@ -3,6 +3,7 @@ import logging
 
 from ..transport import Transport
 from ..exceptions import NotFoundError, TransportError
+from ..compat import string_types
 from .indices import IndicesClient
 from .cluster import ClusterClient
 from .cat import CatClient
@@ -22,13 +23,13 @@ def _normalize_hosts(hosts):
         return [{}]
 
     # passed in just one string
-    if isinstance(hosts, (type(''), type(u''))):
+    if isinstance(hosts, string_types):
         hosts = [hosts]
 
     out = []
     # normalize hosts to dicts
     for i, host in enumerate(hosts):
-        if isinstance(host, (type(''), type(u''))):
+        if isinstance(host, string_types):
             host = host.strip('/')
             # remove schema information
             if '://' in host:
@@ -130,7 +131,7 @@ class Elasticsearch(object):
 
     def _bulk_body(self, body):
         # if not passed in a string, serialize items and join by newline
-        if not isinstance(body, (type(''), type(u''))):
+        if not isinstance(body, string_types):
             body = '\n'.join(map(self.transport.serializer.dumps, body))
 
         # bulk body must end with a newline

elasticsearch/client/utils.py

@@ -1,11 +1,6 @@
 from datetime import date, datetime
 from functools import wraps
-try:
-    # PY2
-    from urllib import quote_plus
-except ImportError:
-    # PY3
-    from urllib.parse import quote_plus
+from ..compat import string_types, quote_plus, u
 
 # parts of URL to be omitted
 SKIP_IN_PATH = (None, '', [], ())
@@ -18,7 +13,7 @@ def _escape(value):
 
     # make sequences into comma-separated stings
     if isinstance(value, (list, tuple)):
-        value = u','.join(value)
+        value = u(',').join(value)
 
     # dates and datetimes into isoformat
     elif isinstance(value, (date, datetime)):
@@ -29,7 +24,7 @@ def _escape(value):
         value = str(value).lower()
 
     # encode strings to utf-8
-    if isinstance(value, (type(''), type(u''))):
+    if isinstance(value, string_types):
         try:
             return value.encode('utf-8')
         except UnicodeDecodeError:

elasticsearch/compat.py

@@ -0,0 +1,14 @@
+import sys
+
+PY2 = sys.version_info[0] == 2
+
+if PY2:
+    u = lambda s: s.decode('utf-8')
+    string_types = basestring,
+    from urllib import quote_plus, urlencode
+    from itertools import imap as map
+else:
+    u = str
+    string_types = str, bytes
+    from urllib.parse import quote_plus, urlencode
+    map = map

elasticsearch/connection/http_requests.py

@@ -4,13 +4,10 @@ try:
     REQUESTS_AVAILABLE = True
 except ImportError:
     REQUESTS_AVAILABLE = False
-try:
-    from urllib import urlencode
-except ImportError:
-    from urllib.parse import urlencode
 
 from .base import Connection
 from ..exceptions import ConnectionError, ImproperlyConfigured
+from ..compat import urlencode
 
 class RequestsHttpConnection(Connection):
     """

elasticsearch/connection/http_urllib3.py

@@ -1,12 +1,9 @@
 import time
 import urllib3
-try:
-    from urllib import urlencode
-except ImportError:
-    from urllib.parse import urlencode
 
 from .base import Connection
 from ..exceptions import ConnectionError
+from ..compat import urlencode
 
 class Urllib3HttpConnection(Connection):
     """

elasticsearch/connection/memcached.py

@@ -1,11 +1,8 @@
 import time
 import json
-try:
-    from urllib import urlencode
-except ImportError:
-    from urllib.parse import urlencode
 
 from ..exceptions import TransportError, ConnectionError, ImproperlyConfigured
+from ..compat import urlencode
 from .pooling import PoolingConnection
 
 class MemcachedConnection(PoolingConnection):

elasticsearch/helpers.py

@@ -1,11 +1,8 @@
 from itertools import islice
 from operator import methodcaller
-try:
-    from itertools import imap as map
-except ImportError:
-    pass # python 3, use builtin map
 
 from elasticsearch.exceptions import ElasticsearchException
+from elasticsearch.compat import map
 
 class BulkIndexError(ElasticsearchException):
     @property

elasticsearch/serializer.py

@@ -3,6 +3,7 @@ from datetime import date, datetime
 from decimal import Decimal
 
 from .exceptions import SerializationError, ImproperlyConfigured
+from .compat import string_types
 
 class TextSerializer(object):
     mimetype = 'text/plain'
@@ -11,7 +12,7 @@ class TextSerializer(object):
         return s
 
     def dumps(self, data):
-        if isinstance(data, (type(''), type(u''))):
+        if isinstance(data, string_types):
             return data
 
         raise SerializationError('Cannot serialize %r into text.' % data)
@@ -34,7 +35,7 @@ class JSONSerializer(object):
 
     def dumps(self, data):
         # don't serialize strings
-        if isinstance(data, (type(''), type(u''))):
+        if isinstance(data, string_types):
             return data
 
         try:

test_elasticsearch/test_client/__init__.py

@@ -1,6 +1,7 @@
 from mock import patch
 
 from elasticsearch.client import _normalize_hosts, Elasticsearch
+from elasticsearch.compat import u
 
 from ..test_cases import TestCase, ElasticsearchTestCase
 
@@ -14,7 +15,7 @@ class TestNormalizeHosts(TestCase):
     def test_strings_are_parsed_for_port(self):
         self.assertEquals(
             [{"host": "elasticsearch.org", "port": 42}, {"host": "user:secret@elasticsearch.com"}],
-            _normalize_hosts(["elasticsearch.org:42", u"user:secret@elasticsearch.com"])
+            _normalize_hosts(["elasticsearch.org:42", u("user:secret@elasticsearch.com")])
         )
 
     def test_dicts_are_left_unchanged(self):

test_elasticsearch/test_client/test_utils.py

@@ -1,16 +1,17 @@
 # -*- coding: utf-8 -*-
 from elasticsearch.client.utils import _make_path
+from elasticsearch.compat import PY2, u
 
 from ..test_cases import TestCase, SkipTest
 
 class TestMakePath(TestCase):
     def test_handles_unicode(self):
-        id = u"中文"
+        id = u("中文")
         self.assertEquals('/some-index/type/%E4%B8%AD%E6%96%87', _make_path('some-index', 'type', id))
 
     def test_handles_utf_encoded_string(self):
-        if type('') is type(u''):
+        if not PY2:
             raise SkipTest('Only relevant for py2')
-        id = u"中文".encode('utf-8')
+        id = u("中文").encode('utf-8')
         self.assertEquals('/some-index/type/%E4%B8%AD%E6%96%87', _make_path('some-index', 'type', id))
 

test_elasticsearch/test_connection.py

@@ -54,7 +54,7 @@ class TestUrllib3Connection(TestCase):
         self.assertIsInstance(con.pool, urllib3.HTTPConnectionPool)
 
 class TestRequestsConnection(TestCase):
-    def _get_mock_connection(self, connection_params={}, status_code=200, response_body=u'{}'):
+    def _get_mock_connection(self, connection_params={}, status_code=200, response_body='{}'):
         con = RequestsHttpConnection(**connection_params)
         def _dummy_send(*args, **kwargs):
             dummy_response = Mock()
@@ -71,7 +71,7 @@ class TestRequestsConnection(TestCase):
     def _get_request(self, connection, *args, **kwargs):
         status, headers, data = connection.perform_request(*args, **kwargs)
         self.assertEquals(200, status)
-        self.assertEquals(u'{}', data)
+        self.assertEquals('{}', data)
 
         timeout = kwargs.pop('timeout', connection.timeout)
         args, kwargs = connection.session.send.call_args

test_elasticsearch/test_serializer.py

@@ -11,12 +11,12 @@ from .test_cases import TestCase, SkipTest
 
 class TestJSONSerializer(TestCase):
     def test_datetime_serialization(self):
-        self.assertEquals(u'{"d": "2010-10-01T02:30:00"}', JSONSerializer().dumps({'d': datetime(2010, 10, 1, 2, 30)}))
+        self.assertEquals('{"d": "2010-10-01T02:30:00"}', JSONSerializer().dumps({'d': datetime(2010, 10, 1, 2, 30)}))
 
     def test_decimal_serialization(self):
         if sys.version_info[:2] == (2, 6):
             raise SkipTest("Float rounding is broken in 2.6.")
-        self.assertEquals(u'{"d": 3.8}', JSONSerializer().dumps({'d': Decimal('3.8')}))
+        self.assertEquals('{"d": 3.8}', JSONSerializer().dumps({'d': Decimal('3.8')}))
 
     def test_raises_serialization_error_on_dump_error(self):
         self.assertRaises(SerializationError, JSONSerializer().dumps, object())
@@ -27,12 +27,12 @@ class TestJSONSerializer(TestCase):
         self.assertRaises(SerializationError, JSONSerializer().loads, '{{')
 
     def test_strings_are_left_untouched(self):
-        self.assertEquals(u"你好", JSONSerializer().dumps(u"你好"))
+        self.assertEquals("你好", JSONSerializer().dumps("你好"))
 
 
 class TestTextSerializer(TestCase):
     def test_strings_are_left_untouched(self):
-        self.assertEquals(u"你好", TextSerializer().dumps(u"你好"))
+        self.assertEquals("你好", TextSerializer().dumps("你好"))
 
     def test_raises_serialization_error_on_dump_error(self):
         self.assertRaises(SerializationError, TextSerializer().dumps, {})

test_elasticsearch/test_server/test_common.py

@@ -9,6 +9,7 @@ from os.path import exists, join, dirname, pardir
 import yaml
 
 from elasticsearch import TransportError
+from elasticsearch.compat import string_types
 
 from ..test_cases import SkipTest
 from . import ElasticTestCase, _get_version
@@ -42,11 +43,11 @@ class YamlTestCase(ElasticTestCase):
 
     def _resolve(self, value):
         # resolve variables
-        if isinstance(value, (type(u''), type(''))) and value.startswith('$'):
+        if isinstance(value, string_types) and value.startswith('$'):
             value = value[1:]
             self.assertIn(value, self._state)
             value = self._state[value]
-        if isinstance(value, (type(u''), type(''))):
+        if isinstance(value, string_types):
             value = value.strip()
         return value
 
@@ -172,7 +173,7 @@ class YamlTestCase(ElasticTestCase):
             value = self._lookup(path)
             expected = self._resolve(expected)
 
-            if isinstance(expected, (type(''), type(u''))) and \
+            if isinstance(expected, string_types) and \
                     expected.startswith('/') and expected.endswith('/'):
                 expected = re.compile(expected[1:-1], re.VERBOSE)
                 self.assertTrue(expected.search(value))

test_elasticsearch/test_server/test_memcached.py

@@ -2,6 +2,7 @@
 from elasticsearch import Elasticsearch, MemcachedConnection, NotFoundError
 
 from elasticsearch.transport import ADDRESS_RE
+from elasticsearch.compat import u
 
 from . import ElasticTestCase
 from ..test_cases import SkipTest
@@ -34,8 +35,8 @@ class TestMemcachedConnection(ElasticTestCase):
         self.assertEquals({"answer": 42}, self.mc_client.get("test_index", doc_type="test_type", id=1)["_source"])
 
     def test_unicode(self):
-        self.mc_client.index("test_index", "test_type", {"answer": u"你好"}, id=u"你好")
-        self.assertEquals({"answer": u"你好"}, self.mc_client.get("test_index", doc_type="test_type", id=u"你好")["_source"])
+        self.mc_client.index("test_index", "test_type", {"answer": u("你好")}, id=u("你好"))
+        self.assertEquals({"answer": u("你好")}, self.mc_client.get("test_index", doc_type="test_type", id=u("你好"))["_source"])
 
     def test_missing(self):
         self.assertRaises(NotFoundError, self.mc_client.get, "test_index", doc_type="test_type", id=42)

test_elasticsearch/test_transport.py

@@ -4,6 +4,7 @@ import time
 from elasticsearch.transport import Transport
 from elasticsearch.connection import Connection
 from elasticsearch.exceptions import ConnectionError
+from elasticsearch.compat import u
 
 from .test_cases import TestCase
 
@@ -54,7 +55,7 @@ class TestTransport(TestCase):
     def test_body_gets_encoded_into_bytes(self):
         t = Transport([{}], connection_class=DummyConnection)
 
-        t.perform_request('GET', '/', body=u'你好')
+        t.perform_request('GET', '/', body=u('你好'))
         self.assertEquals(1, len(t.get_connection().calls))
         self.assertEquals(('GET', '/', None, b'\xe4\xbd\xa0\xe5\xa5\xbd'), t.get_connection().calls[0][0])