code: def test_other_modules(self):
      # Create a new package in a temporary dir
      packagedir = self.TEST_DIR / "testpackage"
      packagedir.mkdir()
      (packagedir / "__init__.py").touch()
  
      # And add that directory to the path
      with push_python_path(self.TEST_DIR):
          # Write out a duplicate model there, but registered under a different name.
          from allennlp.models import simple_tagger
  
          with open(simple_tagger.__file__) as model_file:
              code = model_file.read().replace(
                  """@Model.register("simple_tagger")""",
                  """@Model.register("duplicate-test-tagger")""",
              )
  
          with open(packagedir / "model.py", "w") as new_model_file:
              new_model_file.write(code)
  
          # Copy fixture there too.
          shutil.copy(
              self.FIXTURES_ROOT / "data" / "sequence_tagging.tsv",
              self.TEST_DIR,
          )
          data_path = str(self.TEST_DIR / "sequence_tagging.tsv")
  
          # Write out config file
          config_path = self.TEST_DIR / "config.json"
          config_json = """{
                      "model": {
                              "type": "duplicate-test-tagger",
                              "text_field_embedder": {
                                      "token_embedders": {
                                              "tokens": {
                                                      "type": "embedding",
                                                      "embedding_dim": 5
                                              }
                                      }
                              },
                              "encoder": {
                                      "type": "lstm",
                                      "input_size": 5,
                                      "hidden_size": 7,
                                      "num_layers": 2
                              }
                      },
                      "dataset_reader": {"type": "sequence_tagging"},
                      "train_data_path": "$$$",
                      "validation_data_path": "$$$",
                      "data_loader": {"batch_size": 2},
                      "trainer": {
                              "num_epochs": 2,
                              "optimizer": "adam"
                      }
                  }""".replace(
              "$$$", data_path
          )
          with open(config_path, "w") as config_file:
              config_file.write(config_json)
  
          serialization_dir = self.TEST_DIR / "serialization"
  
          # Run train with using the non-allennlp module.
          sys.argv = [
              "allennlp",
              "train",
              str(config_path),
              "-s",
              str(serialization_dir),
          ]
  
          # Shouldn't be able to find the model.
          with pytest.raises(ConfigurationError):
              main()
  
          # Now add the --include-package flag and it should work.
          # We also need to add --recover since the output directory already exists.
          sys.argv.extend(
              ["--recover", "--include-package", "testpackage"]
          )
  
          main()
  
          # Rewrite out config file, but change a value.
          with open(config_path, "w") as new_config_file:
              new_config_file.write(
                  config_json.replace(
                      '"num_epochs": 2,', '"num_epochs": 4,'
                  )
              )
  
          # This should fail because the config.json does not match that in the serialization directory.
          with pytest.raises(ConfigurationError):
              main()
  
file_path: allennlp/tests/commands/main_test.py
imports: import shutil
  import sys
  import pytest
  from allennlp.commands import main
  from allennlp.commands.subcommand import Subcommand
  from allennlp.common.checks import ConfigurationError
  from allennlp.common.plugins import discover_plugins
  from allennlp.common.testing import AllenNlpTestCase
  from allennlp.common.util import push_python_path, pushd
label_desc: Use image node_id 3 for calling the TestMain obj's underlying member method code with example usage: obj.test_other_modules() without return types