old_contents: # -*- encoding: utf-8
  
  import pytest
  
  from reindex_shard_config import create_reindex_shard
  
  
  @pytest.mark.parametrize(
      'source_name, source_id, expected_reindex_shard', [
      ('sierra', 'b0000001', 'sierra/2441'),
      ('miro', 'A0000001', 'miro/128')
  ])
  def test_create_reindex_shard(source_name, source_id, expected_reindex_shard):
      reindex_shard = create_reindex_shard(
          source_name=source_name,
          source_id=source_id
      )
      assert reindex_shard == expected_reindex_shard
  
  
  @pytest.mark.parametrize('source_name', ['foo', 13, None])
  def test_unrecognised_source_name_is_ValueError(source_name):
      with pytest.raises(ValueError) as err:
          reindex_shard = create_reindex_shard(
              source_name=source_name,
              source_id='0001'
          )
      assert err.value.args[0].startswith('Unrecognised source name')
      assert repr(source_name) in err.value.args[0]
  
new_contents: # -*- encoding: utf-8
  
  import pytest
  
  from reindex_shard_config import create_reindex_shard
  
  
  @pytest.mark.parametrize(
      'source_name, source_id, expected_reindex_shard', [
      ('sierra', 'b0000001', 'sierra/2441'),
      ('miro', 'A0000001', 'miro/128')
  ])
  def test_create_reindex_shard(source_name, source_id, expected_reindex_shard):
      reindex_shard = create_reindex_shard(
          source_name=source_name,
          source_id=source_id
      )
      assert reindex_shard == expected_reindex_shard
  
  
  @pytest.mark.parametrize('source_name', ['foo', 13, None])
  def test_unrecognised_source_name_is_ValueError(source_name):
      with pytest.raises(ValueError) as err:
          create_reindex_shard(
              source_name=source_name,
              source_id='0001'
          )
      assert err.value.args[0].startswith('Unrecognised source name')
      assert repr(source_name) in err.value.args[0]
  
subject: Fix a Python lint error