Fix formatting

komodo/matrix.py

@@ -6,7 +6,7 @@
 
 import itertools
 import re
-from typing import Iterator, Sequence, Tuple, Optional, Dict
+from typing import Dict, Iterator, Optional, Sequence, Tuple
 
 
 def get_matrix(

komodo/release_transpiler.py

@@ -3,10 +3,9 @@
 import argparse
 import os
 import re
-from typing import Dict, Union, Optional
+from typing import Dict, Optional, Sequence, Union
 
 import yaml
-from typing_extensions import Sequence
 
 from komodo.matrix import format_release, get_matrix
 from komodo.prettier import load_yaml, write_to_file
@@ -136,6 +135,9 @@ def transpile_releases(matrix_file: str, output_folder: str, matrix: dict) -> No
     Write one dimension file for each element in the matrix
     (e.g. rhel7 and py3.8, rhel6 and py3.6).
     """
+    if not isinstance(matrix, dict):
+        raise TypeError("Matrix coordinates must be a dictionary")
+
     rhel_versions = matrix.get("rhel", "8")
     python_versions = matrix.get("py", "311")
     other_versions = None
@@ -171,6 +173,9 @@ def transpile_releases_for_pip(
     repository_file: str,
     matrix: dict,
 ) -> None:
+    if not isinstance(matrix, dict):
+        raise TypeError("Matrix coordinates must be a dictionary")
+
     rhel_versions = matrix.get("rhel", "8")
     python_versions = matrix.get("py", "311")
     other_versions = None

tests/test_matrix.py

@@ -53,7 +53,5 @@ def test_get_matrix_base(test_input, expected):
     ],
 )
 def test_get_matrix(rhel_ver, py_ver, other_ver, expected_yield):
-    yielded = []
-    for mat in matrix.get_matrix(rhel_ver, py_ver, other_ver):
-        yielded.append(mat)
+    yielded = list(matrix.get_matrix(rhel_ver, py_ver, other_ver))
     assert yielded == expected_yield