diff --git a/setup.py b/setup.py
index 628f6e0b6..5c6cbbf01 100644
--- a/setup.py
+++ b/setup.py
@@ -64,10 +64,6 @@ MOD_NAMES = [
     'spacy.symbols']
 
 
-if sys.version_info[:2] < (2, 7) or (3, 0) <= sys.version_info[0:2] < (3, 4):
-    raise RuntimeError('Python version 2.7 or >= 3.4 required.')
-
-
 # By subclassing build_extensions we have the actual compiler that will be used
 # which is really known only after finalize_options
 # http://stackoverflow.com/questions/724664/python-distutils-how-to-get-a-compiler-that-is-going-to-be-used
diff --git a/spacy/tests/serialize/test_huffman.py b/spacy/tests/serialize/test_huffman.py
index 0a4953c08..34623bd98 100644
--- a/spacy/tests/serialize/test_huffman.py
+++ b/spacy/tests/serialize/test_huffman.py
@@ -58,7 +58,7 @@ def test_round_trip():
     message = ['the', 'quick', 'brown', 'fox', 'jumped', 'over', 'the',
                 'the', 'lazy', 'dog', '.']
     strings = list(codec.strings)
-    codes = {codec.leaves[i]: strings[i] for i in range(len(codec.leaves))}
+    codes = dict([(codec.leaves[i], strings[i]) for i in range(len(codec.leaves))])
     bits = codec.encode(message)
     string = ''.join('{0:b}'.format(c).rjust(8, '0')[::-1] for c in bits.as_bytes())
     for word in message:
@@ -83,7 +83,7 @@ def test_rosetta():
     codec = HuffmanCodec(symb2freq.items())
     py_codec = py_encode(symb2freq)
 
-    codes = {codec.leaves[i]: codec.strings[i] for i in range(len(codec.leaves))}
+    codes = dict([(codec.leaves[i], codec.strings[i]) for i in range(len(codec.leaves))])
 
     my_lengths = defaultdict(int)
     py_lengths = defaultdict(int)