simplify small parts of code with new python api

antarest/matrixstore/service.py

@@ -100,11 +100,7 @@ def get_matrix_id(self, matrix: t.Union[t.List[t.List[float]], str]) -> str:
         """
         # noinspection SpellCheckingInspection
         if isinstance(matrix, str):
-            # str.removeprefix() is not available in Python 3.8
-            prefix = "matrix://"
-            if matrix.startswith(prefix):
-                return matrix[len(prefix) :]
-            return matrix
+            return matrix.removeprefix("matrix://")
         elif isinstance(matrix, list):
             return self.create(matrix)
         else:

tests/study/storage/test_abstract_storage_service.py

@@ -91,12 +91,7 @@ def __init__(self, tmp_path: Path):
 
     def __eq__(self, other: Path):
         if isinstance(other, Path) and other.name == "tmp_copy":
-            # `is_relative_to` is not available for Python < 3.9
-            try:
-                other.relative_to(self.tmp_path)
-                return True
-            except ValueError:
-                return False
+            return other.is_relative_to(self.tmp_path)
 
     def __ne__(self, other):
         return not self.__eq__(other)

tests/variantstudy/conftest.py

@@ -94,11 +94,7 @@ def get_matrix_id(matrix: t.Union[t.List[t.List[float]], str]) -> str:
         Get the matrix ID from a matrix or a matrix link.
         """
         if isinstance(matrix, str):
-            # str.removeprefix() is not available in Python 3.8
-            prefix = "matrix://"
-            if matrix.startswith(prefix):
-                return matrix[len(prefix) :]
-            return matrix
+            return matrix.removeprefix("matrix://")
         elif isinstance(matrix, list):
             return create(matrix)
         else:

tests/variantstudy/test_command_factory.py

@@ -386,11 +386,7 @@
 @pytest.fixture
 def command_factory() -> CommandFactory:
     def get_matrix_id(matrix: str) -> str:
-        # str.removeprefix() is not available in Python 3.8
-        prefix = "matrix://"
-        if matrix.startswith(prefix):
-            return matrix[len(prefix) :]
-        return matrix
+        return matrix.removeprefix("matrix://")
 
     return CommandFactory(
         generator_matrix_constants=Mock(spec=GeneratorMatrixConstants),