fix circular import

dandelion/base.py

@@ -6,8 +6,6 @@
 except ImportError:
     from urllib import parse as urlparse
 
-import requests
-
 from dandelion.cache.base import NoCache
 from dandelion.utils import AttributeDict
 
@@ -54,6 +52,7 @@ class BaseDandelionRequest(object):
     REQUIRE_AUTH = True
 
     def __init__(self, **kwargs):
+        import requests
         from dandelion import default_config
         self.uri = self._get_uri(host=kwargs.get('host'))
         self.app_id = kwargs.get('app_id', default_config.get('app_id'))

dandelion/cache/base.py

@@ -1,5 +1,4 @@
 import hashlib
-import six
 
 
 class NoCache(object):
@@ -14,6 +13,7 @@ def set(self, key, value):
 
     @staticmethod
     def get_key_for(**kwargs):
+        import six
         input_s = ''
         for key in sorted(kwargs):
             input_s += '{}={},'.format(key, kwargs[key])

dandelion/datagem.py

@@ -3,7 +3,6 @@
 from __future__ import unicode_literals
 
 import warnings
-import six
 
 from dandelion.base import DandelionException, BaseDandelionRequest
 
@@ -131,6 +130,7 @@ def __getitem__(self, item):
     def _parse_single_filter(key, value):
         """ prepare a value for being used in the api
         """
+        import six
         if isinstance(value, six.string_types):
             value = '"%s"' % value
         if value is None: