Cookiecutter fails to get config if the .cookiecutterrc is an empty file #1994
Description
- Cookiecutter version: 2.5.0
- Python version: 3.8
- Operating System: Linux
Description:
When using get_user_config(), the method fails with an exception instead of returning default values, if the .cookiecutterrc file exists, but is empty.
Stacktrace:
>>> get_user_config()
Traceback (most recent call last):
File "/local/home/a.pirogov/.cache/pypoetry/virtualenvs/fair-python-cookiecutter-Y_dY9N1_-py3.8/lib/python3.8/site-packages/cookiecutter/config.py", line 115, in get_user_config
env_config_file = os.environ['COOKIECUTTER_CONFIG']
File "/local/home/a.pirogov/.pyenv/versions/3.8.17/lib/python3.8/os.py", line 675, in __getitem__
raise KeyError(key) from None
KeyError: 'COOKIECUTTER_CONFIG'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/local/home/a.pirogov/.cache/pypoetry/virtualenvs/fair-python-cookiecutter-Y_dY9N1_-py3.8/lib/python3.8/site-packages/cookiecutter/config.py", line 121, in get_user_config
return get_config(USER_CONFIG_PATH)
File "/local/home/a.pirogov/.cache/pypoetry/virtualenvs/fair-python-cookiecutter-Y_dY9N1_-py3.8/lib/python3.8/site-packages/cookiecutter/config.py", line 69, in get_config
config_dict = merge_configs(DEFAULT_CONFIG, yaml_dict)
File "/local/home/a.pirogov/.cache/pypoetry/virtualenvs/fair-python-cookiecutter-Y_dY9N1_-py3.8/lib/python3.8/site-packages/cookiecutter/config.py", line 44, in merge_configs
for k, v in overwrite.items():
AttributeError: 'NoneType' object has no attribute 'items'
What I've run:
Just have an empty .cookiecutterrc and run get_user_config().
Expected behavior:
This exception should not happen, a missing .cookiecutterrc should be treated the same as an empty one.