WandbLogger doesn't format config correctly

Bug description

Summary: WandbLogger(config=config) does not provide the same behavior as wandb.init(config=config) in recent versions of pytorch-lightning

Explanation:

Passing config into wandb.init is supposed to create a nicely formatted config in WandB Example: wandb.init(config={'key1': {'key2': 'value'}}) The Run Overview in wandb looks like this:

A more complicated example of a nested config: In this WandB run, the keys are logged and searchable as e.g. model.pool.0 (with corresponding value 4)

However, this is what it looks like when you run pytorch_lightning.loggers.WandbLogger(config={'test_key': {'key2': 'test_value'}}) (which is supposed to pass the config entry straight through to wandb.init)

Note that the keys are no longer nested and there's only one level of hierarchy where the values are massive dictionaries. Instead of the WandB config having a key of test_key.key2 with value of test_value, there is only a key of test_key with a value of {'key2': 'test_value'}.

What version are you seeing the problem on?

v2_0

Note: I have used older versions of pytorch-lightning that do not have this issue. I'm not sure if it is a regression and have not had time to bisect.

How to reproduce the bug

See above

Error messages and logs

# Error messages and logs here please

Environment

❯ python collect_env_details.py

• CUDA: - GPU: - NVIDIA A100-SXM4-40GB - NVIDIA A100-SXM4-40GB - NVIDIA A100-SXM4-40GB - NVIDIA A100-SXM4-40GB - NVIDIA A100-SXM4-40GB - NVIDIA A100-SXM4-40GB - NVIDIA A100-SXM4-40GB - NVIDIA A100-SXM4-40GB - NVIDIA A100-SXM4-40GB - NVIDIA A100-SXM4-40GB - NVIDIA A100-SXM4-40GB - NVIDIA A100-SXM4-40GB - NVIDIA A100-SXM4-40GB - NVIDIA A100-SXM4-40GB - NVIDIA A100-SXM4-40GB - NVIDIA A100-SXM4-40GB - available: True - version: 12.1
• Lightning: - lightning-utilities: 0.8.0 - pytorch-fast-transformers: 0.4.0 - pytorch-lightning: 2.0.1.post0 - pytorch-quantization: 2.1.2 - torch: 2.0.0a0+1767026 - torch-tensorrt: 1.4.0.dev0 - torchaudio: 2.0.1+3b40834 - torchmetrics: 0.11.4 - torchtext: 0.13.0a0+fae8e8c - torchvision: 0.15.0a0
• Packages: - absl-py: 1.4.0 - accelerate: 0.18.0 - aiohttp: 3.8.4 - aiosignal: 1.3.1 - alembic: 1.10.3 - antlr4-python3-runtime: 4.9.3 - apex: 0.1 - appdirs: 1.4.4 - argcomplete: 3.0.5 - argon2-cffi: 21.3.0 - argon2-cffi-bindings: 21.2.0 - asttokens: 2.2.1 - astunparse: 1.6.3 - async-timeout: 4.0.2 - attrs: 22.2.0 - audioread: 3.0.0 - autopage: 0.5.1 - backcall: 0.2.0 - beautifulsoup4: 4.11.2 - bleach: 6.0.0 - blessed: 1.20.0 - blis: 0.7.9 - boto: 2.49.0 - cachetools: 5.3.0 - catalogue: 2.0.8 - cauchy-mult: 0.1 - certifi: 2022.12.7 - cffi: 1.15.1 - charset-normalizer: 3.1.0 - click: 8.1.3 - cliff: 4.2.0 - cloudpickle: 2.2.1 - cmaes: 0.9.1 - cmake: 3.24.1.1 - cmd2: 2.4.3 - colorlog: 6.7.0 - comm: 0.1.2 - confection: 0.0.4 - contourpy: 1.0.7 - crcmod: 1.7 - cryptography: 40.0.2 - cubinlinker: 0.2.2+2.g4de3e99 - cuda-python: 12.1.0rc5+1.gc7fd38c.dirty - cudf: 23.2.0 - cugraph: 23.2.0 - cugraph-dgl: 23.2.0 - cugraph-service-client: 23.2.0 - cugraph-service-server: 23.2.0 - cuml: 23.2.0 - cupy-cuda12x: 12.0.0b3 - cycler: 0.11.0 - cymem: 2.0.7 - cython: 0.29.33 - dask: 2023.1.1 - dask-cuda: 23.2.0 - dask-cudf: 23.2.0 - datasets: 2.11.0 - debugpy: 1.6.6 - decorator: 5.1.1 - deepspeed: 0.9.1 - defusedxml: 0.7.1 - dill: 0.3.6 - distributed: 2023.1.1 - docker-pycreds: 0.4.0 - docutils: 0.19 - dropout-layer-norm: 0.1 - eeghdf: 0.2.4 - einops: 0.6.1 - en-core-web-sm: 3.5.0 - exceptiongroup: 1.1.1 - execnet: 1.9.0 - executing: 1.2.0 - expecttest: 0.1.3 - fasteners: 0.18 - fastjsonschema: 2.16.3 - fastrlock: 0.8.1 - fftconv: 0.1 - filelock: 3.10.0 - flash-attn: 1.0.3.post0 - fonttools: 4.38.0 - frozenlist: 1.3.3 - fsspec: 2023.1.0 - ft-attention: 0.1 - fused-dense-lib: 0.0.0 - future: 0.18.3 - fvcore: 0.1.5.post20221221 - gast: 0.4.0 - gcs-oauth2-boto-plugin: 3.0 - gdown: 4.7.1 - gitdb: 4.0.10 - gitpython: 3.1.31 - google-apitools: 0.5.32 - google-auth: 2.16.2 - google-auth-oauthlib: 0.4.6 - google-reauth: 0.1.1 - gpustat: 1.1 - graphsurgeon: 0.4.6 - greenlet: 2.0.2 - grpcio: 1.51.3 - gsutil: 5.23 - h5py: 3.8.0 - heapdict: 1.0.1 - hjson: 3.1.0 - httplib2: 0.20.4 - huggingface-hub: 0.13.4 - hydra-colorlog: 1.2.0 - hydra-core: 1.3.2 - hydra-optuna-sweeper: 1.2.0 - hypothesis: 5.35.1 - idna: 3.4 - importlib-metadata: 6.0.0 - importlib-resources: 5.12.0 - iniconfig: 2.0.0 - intel-openmp: 2021.4.0 - iopath: 0.1.10 - ipdb: 0.13.13 - ipykernel: 6.21.3 - ipython: 8.11.0 - ipython-genutils: 0.2.0 - ipywidgets: 8.0.6 - jaraco.classes: 3.2.3 - jedi: 0.18.2 - jeepney: 0.8.0 - jinja2: 3.1.2 - joblib: 1.2.0 - json5: 0.9.11 - jsonschema: 4.17.3 - jupyter: 1.0.0 - jupyter-client: 8.0.3 - jupyter-console: 6.6.3 - jupyter-core: 5.2.0 - jupyter-tensorboard: 0.2.0 - jupyterlab: 2.3.2 - jupyterlab-pygments: 0.2.2 - jupyterlab-server: 1.2.0 - jupyterlab-widgets: 3.0.7 - jupytext: 1.14.5 - keopscore: 2.1.2 - keyring: 23.13.1 - kiwisolver: 1.4.4 - langcodes: 3.3.0 - librosa: 0.9.2 - lightning-utilities: 0.8.0 - lit: 15.0.7 - llvmlite: 0.39.1 - locket: 1.0.0 - mako: 1.2.4 - markdown: 3.4.1 - markdown-it-py: 2.2.0 - markupsafe: 2.1.2 - matplotlib: 3.7.0 - matplotlib-inline: 0.1.6 - mdit-py-plugins: 0.3.5 - mdurl: 0.1.2 - mistune: 2.0.5 - mkl: 2021.1.1 - mkl-devel: 2021.1.1 - mkl-include: 2021.1.1 - mlperf-logging: 2.1.0 - mock: 5.0.1 - monotonic: 1.6 - more-itertools: 9.1.0 - mpmath: 1.3.0 - msgpack: 1.0.4 - multidict: 6.0.4 - multiprocess: 0.70.14 - munch: 2.5.0 - murmurhash: 1.0.9 - nbclient: 0.7.2 - nbconvert: 7.2.10 - nbformat: 5.7.3 - nest-asyncio: 1.5.6 - networkx: 2.6.3 - ninja: 1.11.1 - notebook: 6.4.10 - numba: 0.56.4+1.g9a03de713 - numpy: 1.22.2 - nvidia-dali-cuda110: 1.23.0 - nvidia-ml-py: 11.525.112 - nvidia-pyindex: 1.0.9 - nvitop: 1.1.2 - nvtx: 0.2.5 - oauth2client: 4.1.3 - oauthlib: 3.2.2 - omegaconf: 2.3.0 - onnx: 1.13.0 - opencv: 4.6.0 - opt-einsum: 3.3.0 - optuna: 2.10.1 - packaging: 23.0 - pandas: 1.5.2 - pandocfilters: 1.5.0 - parso: 0.8.3 - partd: 1.3.0 - pathtools: 0.1.2 - pathy: 0.10.1 - pbr: 5.11.1 - pexpect: 4.8.0 - pickleshare: 0.7.5 - pillow: 9.2.0 - pip: 21.2.4 - pkginfo: 1.9.6 - pkgutil-resolve-name: 1.3.10 - platformdirs: 3.1.1 - pluggy: 1.0.0 - ply: 3.11 - polygraphy: 0.44.2 - pooch: 1.7.0 - portalocker: 2.7.0 - preshed: 3.0.8 - prettytable: 3.6.0 - prometheus-client: 0.16.0 - prompt-toolkit: 3.0.38 - protobuf: 3.20.3 - psutil: 5.9.4 - ptxcompiler: 0.7.0+27.gbcb4096 - ptyprocess: 0.7.0 - pure-eval: 0.2.2 - py-cpuinfo: 9.0.0 - pyarrow: 10.0.1.dev0+ga6eabc2b.d20230220 - pyasn1: 0.4.8 - pyasn1-modules: 0.2.8 - pybind11: 2.10.3 - pycocotools: 2.0+nv0.7.1 - pycparser: 2.21 - pydantic: 1.10.6 - pygments: 2.14.0 - pylibcugraph: 23.2.0 - pylibcugraphops: 23.2.0 - pylibraft: 23.2.0 - pynvml: 11.5.0 - pyopenssl: 23.1.1 - pyparsing: 3.0.9 - pyperclip: 1.8.2 - pyrootutils: 1.0.4 - pyrsistent: 0.19.3 - pysocks: 1.7.1 - pytest: 7.2.2 - pytest-rerunfailures: 11.1.2 - pytest-shard: 0.1.2 - pytest-xdist: 3.2.1 - python-dateutil: 2.8.2 - python-dotenv: 1.0.0 - python-hostlist: 1.23.0 - pytorch-fast-transformers: 0.4.0 - pytorch-lightning: 2.0.1.post0 - pytorch-quantization: 2.1.2 - pytz: 2022.7.1 - pyu2f: 0.1.5 - pyyaml: 6.0 - pyzmq: 25.0.1 - qtconsole: 5.4.2 - qtpy: 2.3.1 - raft-dask: 23.2.0 - readme-renderer: 37.3 - regex: 2022.10.31 - requests: 2.28.2 - requests-oauthlib: 1.3.1 - requests-toolbelt: 0.10.1 - resampy: 0.4.2 - responses: 0.18.0 - retry-decorator: 1.1.1 - rfc3986: 2.0.0 - rich: 13.3.4 - rmm: 23.2.0 - rotary-emb: 0.1 - rsa: 4.7.2 - scikit-learn: 1.2.0 - scipy: 1.6.3 - seaborn: 0.12.2 - secretstorage: 3.3.3 - send2trash: 1.8.0 - sentencepiece: 0.1.98 - sentry-sdk: 1.20.0 - setproctitle: 1.3.2 - setuptools: 65.5.1 - six: 1.16.0 - smart-open: 6.3.0 - smmap: 5.0.0 - sortedcontainers: 2.4.0 - soundfile: 0.12.1 - soupsieve: 2.4 - spacy: 3.5.1 - spacy-legacy: 3.0.12 - spacy-loggers: 1.0.4 - sphinx-glpi-theme: 0.3 - sqlalchemy: 2.0.10 - srsly: 2.4.6 - stack-data: 0.6.2 - stevedore: 5.0.0 - strings-udf: 23.2.0 - structured-kernels: 0.1.0 - sympy: 1.11.1 - tabulate: 0.9.0 - tbb: 2021.8.0 - tblib: 1.7.0 - tensorboard: 2.9.0 - tensorboard-data-server: 0.6.1 - tensorboard-plugin-wit: 1.8.1 - tensorrt: 8.5.3.1 - termcolor: 2.2.0 - terminado: 0.17.1 - thinc: 8.1.9 - threadpoolctl: 3.1.0 - thriftpy2: 0.4.16 - timm: 0.6.13 - tinycss2: 1.2.1 - tokenizers: 0.13.3 - toml: 0.10.2 - tomli: 2.0.1 - toolz: 0.12.0 - torch: 2.0.0a0+1767026 - torch-tensorrt: 1.4.0.dev0 - torchaudio: 2.0.1+3b40834 - torchmetrics: 0.11.4 - torchtext: 0.13.0a0+fae8e8c - torchvision: 0.15.0a0 - tornado: 6.2 - tqdm: 4.65.0 - traitlets: 5.9.0 - transformer-engine: 0.6.0 - transformers: 4.28.1 - treelite: 3.1.0 - treelite-runtime: 3.1.0 - triton: 2.0.0.dev20221202 - twine: 4.0.2 - typer: 0.7.0 - types-dataclasses: 0.6.6 - typing-extensions: 4.5.0 - ucx-py: 0.30.0 - uff: 0.6.9 - urllib3: 1.26.14 - wandb: 0.15.1 - wasabi: 1.1.1 - wcwidth: 0.2.6 - webencodings: 0.5.1 - werkzeug: 2.2.3 - wheel: 0.38.4 - widgetsnbextension: 4.0.7 - xdoctest: 1.0.2 - xentropy-cuda-lib: 0.1 - xxhash: 3.2.0 - yacs: 0.1.8 - yarl: 1.9.1 - zict: 2.2.0 - zipp: 3.14.0 - zstandard: 0.21.0
• System: - OS: Linux - architecture: - 64bit - ELF - processor: x86_64 - python: 3.8.10 - version: #1 SMP Debian 4.19.269-1 (2022-12-20)

More info

No response

cc @awaelchli @morganmcg1 @borisdayma @scottire @parambharat