.. blogpost::
    :title: Turn warnings into errors
    :keywords: python, warnings
    :date: 2017-09-23
    :categories: warnings

    The following code turns warnings into errors.
    Useful to find the source of a warning.

    ::

        with warnings.catch_warnings():
            warnings.filterwarnings('error')
            from pandas import DataFrame

    Another one to remove annoying warnings which happen
    sometimes when a module is imported not at the beginning
    of a file:

    ::

        with warnings.catch_warnings():
            warnings.filterwarnings("ignore", category=ImportWarning)
            import pandas