Add from_tablib method

pytablewriter/writer/_table_writer.py

@@ -382,6 +382,14 @@ def from_dataframe(self, dataframe):
             self.__get_typehint_from_dtype(dtype) for dtype in dataframe.dtypes
         ]
 
+    def from_tablib(self, tablib_dataset):
+        """
+        Set tabular attributes to the writer from :py:class:`tablib.Dataset`.
+        """
+
+        self.header_list = tablib_dataset.headers
+        self.value_matrix = [row for row in tablib_dataset]
+
     def write_table(self):
         """
         |write_table|.

test/test_markdown_writer.py

@@ -599,3 +599,31 @@ def test_exception(self, table, header, value, expected):
 
         with pytest.raises(expected):
             writer.write_table_iter()
+
+
+class Test_MarkdownTableWriter_from_tablib(object):
+
+    def test_normal_multiple_write(self, capsys):
+        import tablib
+
+        data = tablib.Dataset()
+        data.headers = ['a', 'b', 'c']
+        data.append(['1', 'AA', 'abc'])
+        data.append(['2', 'BB', 'zzz'])
+
+        writer = table_writer_class()
+        writer.from_tablib(data)
+        writer.write_table()
+
+        expected = dedent("""\
+            | a | b | c |
+            |--:|---|---|
+            |  1|AA |abc|
+            |  2|BB |zzz|
+
+            """)
+
+        out, err = capsys.readouterr()
+        print_test_result(expected=expected, actual=out, error=err)
+
+        assert out == expected