Removed support for old versions

- Removing support for Django 1.4.x, pymongo 2.5.x, pymongo 2.6.x.
- Removing support for Python < 2.6.6

mongoengine/base/document.py

@@ -13,8 +13,7 @@ from mongoengine import signals
 from mongoengine.common import _import_class
 from mongoengine.errors import (ValidationError, InvalidDocumentError,
                                 LookUpError)
-from mongoengine.python_support import (PY3, UNICODE_KWARGS, txt_type,
-                                        to_str_keys_recursive)
+from mongoengine.python_support import PY3, txt_type
 
 from mongoengine.base.common import get_document, ALLOW_INHERITANCE
 from mongoengine.base.datastructures import BaseDict, BaseList
@@ -545,10 +544,6 @@ class BaseDocument(object):
         # class if unavailable
         class_name = son.get('_cls', cls._class_name)
         data = dict(("%s" % key, value) for key, value in son.iteritems())
-        if not UNICODE_KWARGS:
-            # python 2.6.4 and lower cannot handle unicode keys
-            # passed to class constructor example: cls(**data)
-            to_str_keys_recursive(data)
 
         # Return correct subclass for document type
         if class_name != cls._class_name:

mongoengine/python_support.py

@@ -3,8 +3,6 @@
 import sys
 
 PY3 = sys.version_info[0] == 3
-PY25 = sys.version_info[:2] == (2, 5)
-UNICODE_KWARGS = int(''.join([str(x) for x in sys.version_info[:3]])) > 264
 
 if PY3:
     import codecs
@@ -29,33 +27,3 @@ else:
     txt_type = unicode
 
 str_types = (bin_type, txt_type)
-
-if PY25:
-    def product(*args, **kwds):
-        pools = map(tuple, args) * kwds.get('repeat', 1)
-        result = [[]]
-        for pool in pools:
-            result = [x + [y] for x in result for y in pool]
-        for prod in result:
-            yield tuple(prod)
-    reduce = reduce
-else:
-    from itertools import product
-    from functools import reduce
-
-
-# For use with Python 2.5
-# converts all keys from unicode to str for d and all nested dictionaries
-def to_str_keys_recursive(d):
-    if isinstance(d, list):
-        for val in d:
-            if isinstance(val, (dict, list)):
-                to_str_keys_recursive(val)
-    elif isinstance(d, dict):
-        for key, val in d.items():
-            if isinstance(val, (dict, list)):
-                to_str_keys_recursive(val)
-            if isinstance(key, unicode):
-                d[str(key)] = d.pop(key)
-    else:
-        raise ValueError("non list/dict parameter not allowed")

mongoengine/queryset/visitor.py

@@ -1,8 +1,9 @@
 import copy
 
-from mongoengine.errors import InvalidQueryError
-from mongoengine.python_support import product, reduce
+from itertools import product
+from functools import reduce
 
+from mongoengine.errors import InvalidQueryError
 from mongoengine.queryset import transform
 
 __all__ = ('Q',)