[python-package] updated test_consistency.py to use f-strings (#4348)

microsoft · Jun 7, 2021 · bab58d0 · bab58d0
1 parent 20e6338
commit bab58d0
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/tests/python_package_test/test_consistency.py b/tests/python_package_test/test_consistency.py
@@ -32,7 +32,7 @@ def load_dataset(self, suffix, is_sparse=False):
             return mat[:, 1:], mat[:, 0], filename
 
     def load_field(self, suffix):
-        return np.loadtxt(os.path.join(self.directory, self.prefix + suffix))
+        return np.loadtxt(os.path.join(self.directory, f'{self.prefix}{suffix}'))
 
     def load_cpp_result(self, result_file='LightGBM_predict_result.txt'):
         return np.loadtxt(os.path.join(self.directory, result_file))
@@ -61,7 +61,7 @@ def file_load_check(self, lgb_train, name):
                 assert a == b, f
 
     def path(self, suffix):
-        return os.path.join(self.directory, self.prefix + suffix)
+        return os.path.join(self.directory, f'{self.prefix}{suffix}')
 
 
 def test_binary():