remove ordereddict dependency, issue #55

.travis.yml

@@ -1,10 +1,10 @@
 sudo: false
 language: python
 python:
-    - "3.4"
-    - "3.3"
+    - "3.11"
+    - "3.10"
+    - "3.9"
     - "2.7"
-    - "2.6"
 
 addons:
     apt:

requirements.txt

@@ -2,6 +2,5 @@ pytest==2.8.3
 pep8==1.6.2
 marshmallow>=2.15.1
 beautifulsoup4==4.4.1
-ordereddict==1.1
 lxml==4.6.5
 six==1.9.0

xbrl/xbrl.py

@@ -4,7 +4,7 @@
 import re
 from marshmallow import Schema, fields
 import datetime
-import collections
+import collections as odict
 import six
 import logging
 
@@ -13,11 +13,6 @@
 except ImportError:
     from io import StringIO
 
-if 'OrderedDict' in dir(collections):
-    odict = collections
-else:
-    import ordereddict as odict
-
 
 def soup_maker(fh):
     """ Takes a file handler returns BeautifulSoup"""