TST: don't catch, but supress warnings in panel4d/panelnd
# [Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/15705?src=pr&el=h1) Report
> Merging [#15705](https://codecov.io/gh/pandas-dev/pandas/pull/15705?src=pr&el=desc) into [master](https://codecov.io/gh/pandas-dev/pandas/commit/61f6f6333fb7bb2dedf82736aee6c9878382a06f?src=pr&el=desc) will **decrease** coverage by `0.02%`.
> The diff coverage is `100%`.


```diff
@@            Coverage Diff             @@
##           master   #15705      +/-   ##
==========================================
- Coverage   91.03%      91%   -0.03%     
==========================================
  Files         143      143              
  Lines       49411    49416       +5     
==========================================
- Hits        44979    44971       -8     
- Misses       4432     4445      +13
```


| [Impacted Files](https://codecov.io/gh/pandas-dev/pandas/pull/15705?src=pr&el=tree) | Coverage Δ | |
|---|---|---|
| [pandas/core/categorical.py](https://codecov.io/gh/pandas-dev/pandas/compare/61f6f6333fb7bb2dedf82736aee6c9878382a06f...cdb2357cc23329c1618c630cf8d8876f0b121aa0?src=pr&el=tree#diff-cGFuZGFzL2NvcmUvY2F0ZWdvcmljYWwucHk=) | `96.89% <ø> (ø)` | :white_check_mark: |
| [pandas/io/pytables.py](https://codecov.io/gh/pandas-dev/pandas/compare/61f6f6333fb7bb2dedf82736aee6c9878382a06f...cdb2357cc23329c1618c630cf8d8876f0b121aa0?src=pr&el=tree#diff-cGFuZGFzL2lvL3B5dGFibGVzLnB5) | `93.06% <100%> (+0.01%)` | :white_check_mark: |
| [pandas/io/gbq.py](https://codecov.io/gh/pandas-dev/pandas/compare/61f6f6333fb7bb2dedf82736aee6c9878382a06f...cdb2357cc23329c1618c630cf8d8876f0b121aa0?src=pr&el=tree#diff-cGFuZGFzL2lvL2dicS5weQ==) | `25% <0%> (-58.34%)` | :x: |
| [pandas/computation/pytables.py](https://codecov.io/gh/pandas-dev/pandas/compare/61f6f6333fb7bb2dedf82736aee6c9878382a06f...cdb2357cc23329c1618c630cf8d8876f0b121aa0?src=pr&el=tree#diff-cGFuZGFzL2NvbXB1dGF0aW9uL3B5dGFibGVzLnB5) | `90.75% <0%> (-0.85%)` | :x: |
| [pandas/tools/merge.py](https://codecov.io/gh/pandas-dev/pandas/compare/61f6f6333fb7bb2dedf82736aee6c9878382a06f...cdb2357cc23329c1618c630cf8d8876f0b121aa0?src=pr&el=tree#diff-cGFuZGFzL3Rvb2xzL21lcmdlLnB5) | `93.68% <0%> (-0.34%)` | :x: |
| [pandas/core/frame.py](https://codecov.io/gh/pandas-dev/pandas/compare/61f6f6333fb7bb2dedf82736aee6c9878382a06f...cdb2357cc23329c1618c630cf8d8876f0b121aa0?src=pr&el=tree#diff-cGFuZGFzL2NvcmUvZnJhbWUucHk=) | `97.87% <0%> (-0.1%)` | :x: |
| [pandas/core/common.py](https://codecov.io/gh/pandas-dev/pandas/compare/61f6f6333fb7bb2dedf82736aee6c9878382a06f...cdb2357cc23329c1618c630cf8d8876f0b121aa0?src=pr&el=tree#diff-cGFuZGFzL2NvcmUvY29tbW9uLnB5) | `91.3% <0%> (+0.33%)` | :white_check_mark: |

------

[Continue to review full report at Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/15705?src=pr&el=continue).
> **Legend** - [Click here to learn more](https://docs.codecov.io/docs/codecov-delta)
> `Δ = absolute <relative> (impact)`, `ø = not affected`, `? = missing data`
> Powered by [Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/15705?src=pr&el=footer). Last update [61f6f63...cdb2357](https://codecov.io/gh/pandas-dev/pandas/compare/61f6f6333fb7bb2dedf82736aee6c9878382a06f...cdb2357cc23329c1618c630cf8d8876f0b121aa0?el=footer&src=pr&el=lastupdated). Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments).