# Exceptions

{pysummary}`instro.lib.exceptions`

```{eval-rst}
.. autosummary::
   :toctree: generated
   :nosignatures:

   ~instro.lib.exceptions.InstroError
   ~instro.lib.exceptions.FeatureNotSupportedError
   ~instro.lib.exceptions.InstrumentNotOpenError
   ~instro.lib.exceptions.UnknownHolderError
```