Use OrderedDict instead of plain dict

Author: whtsky

bencoder.pyx

@@ -17,6 +17,11 @@ __version__ = '1.0.0'
 import sys
 IS_PY2 = sys.version[0] == '2'
 
+try:
+    from collections import OrderedDict
+except ImportError:
+    from ordereddict import OrderedDict
+
 if IS_PY2:
     END_CHAR = 'e'
 else:
@@ -57,7 +62,7 @@ def decode_list(bytes x, int f):
 
 
 def decode_dict(bytes x, int f):
-    r, f = {}, f + 1
+    r, f = OrderedDict(), f + 1
     while x[f] != END_CHAR:
         k, f = decode_string(x, f)
         r[k], f = decode_func[x[f]](x, f)

setup.py

@@ -1,8 +1,13 @@
-import sys
+import platform
 
 from setuptools import setup
 from setuptools.extension import Extension
 
+version = platform.python_version_tuple()
+install_requires = []
+if version < ('2', '7'):
+    install_requires.append('ordereddict>=1.1')
+
 setup(
     name='bencoder.pyx',
     version='1.0.0',
@@ -35,6 +40,7 @@
         'Topic :: Software Development :: Libraries :: Python Modules',
     ],
     ext_modules=[Extension('bencoder', ['bencoder.c'])],
+    install_requires=install_requires,
     tests_require=['nose'],
     test_suite='nose.collector',
 )