Quick fix, load_txt legit header

idefix/io.py

@@ -91,7 +91,7 @@ def load_txt(fname, header, delimiter=' '):
     ----------
     fname : str, Path
         Path to the text file to load.
-    header : array
+    header : array, tuple
         Names of the columns contained in the text point cloud file.
     delimiter : str, optional
         String used to separate values. The default is whitespace.
@@ -132,7 +132,7 @@ def load_txt(fname, header, delimiter=' '):
                                          dtype=[('spatial', np.float, 3)])
 
     log.debug('Extract feature data')
-    header_c = header.copy()
+    header_c = list(header)
     for i in ('x', 'y', 'z'):
         header_c.remove(i)
 

test/test_io.py

@@ -66,6 +66,11 @@ def test_load_txt(datadir, fname, head, separator, exp_point_count, exp_field_co
     except IOError:
         pytest.fail('Opening legit file without exception')
 
+    try:
+        result = io.load_txt(fname, tuple(head), separator)
+    except Exception:
+        pytest.fail('Opening legit file with legit header')
+
     assert result.size == exp_point_count, "Return correct point count"
 
     assert result['spatial'].shape[-1] == 3, "Return ndarray with spatial field"