Added support for compressed file-like objects

tabulator/stream.py

@@ -231,7 +231,9 @@ def open(self):
 
         # Gzip compression
         elif compression == 'gz' and six.PY3:
-            name = self.__source.replace('.gz', '')
+            name = ''
+            if isinstance(self.__source, str):
+                name = self.__source.replace('.gz', '')
             self.__source = gzip.open(self.__loader.load(self.__source, mode='b'))
             self.__loader = StreamLoader(bytes_sample_size=self.__bytes_sample_size)
             format = self.__format or helpers.detect_scheme_and_format(name)[1]

tests/test_stream.py

@@ -640,6 +640,7 @@ def test_stream_local_csv_zip():
         assert stream.headers is None
         assert stream.read() == [['id', 'name'], ['1', 'english'], ['2', '中国人']]
 
+
 @pytest.mark.skipif(six.PY2, reason='Support only for Python3')
 def test_stream_local_csv_zip_multiple_files():
     with Stream('data/2-files.zip', filename = 'table.csv') as stream:
@@ -657,6 +658,22 @@ def test_stream_local_csv_gz():
         assert stream.read() == [['id', 'name'], ['1', 'english'], ['2', '中国人']]
 
 
+@pytest.mark.skipif(six.PY2, reason='Support only for Python3')
+def test_stream_filelike_csv_zip():
+    with open('data/table.csv.zip', 'rb') as file:
+        with Stream(file, format='csv', compression='zip') as stream:
+            assert stream.headers is None
+            assert stream.read() == [['id', 'name'], ['1', 'english'], ['2', '中国人']]
+
+
+@pytest.mark.skipif(six.PY2, reason='Support only for Python3')
+def test_stream_filelike_csv_gz():
+    with open('data/table.csv.gz', 'rb') as file:
+        with Stream(file, format='csv', compression='gz') as stream:
+            assert stream.headers is None
+            assert stream.read() == [['id', 'name'], ['1', 'english'], ['2', '中国人']]
+
+
 # Issues
 
 def test_stream_reset_on_close_issue_190():