feature/infer-schema: add basic schema inference #202
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- dataframe and series schemas can be inferred by providing `infer_schema` with the corresponding pandas object. - extend `PandasDtype` enum class with `from_pandas_api_type` and `from_str_alias` methods. Also implemented `__eq__` and `__hash__` methods. - implemented an `_inferred_schema_guard` function that wraps dataframe and series schema methods. This should raise a UserWarning if a user validates a dataframe/series using an inferred schema that hasn't been modified
Codecov Report
@@ Coverage Diff @@
## master #202 +/- ##
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+ Coverage 96.19% 96.55% +0.35%
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Files 9 10 +1
Lines 710 870 +160
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+ Hits 683 840 +157
- Misses 27 30 +3
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fixes #163, #93
this PR adds schema inference functionality. The
infer_schemafunction isnow available in the top-level
panderaname space, and can be used tocreate
DataFrameSchemaandSeriesSchemaobjects fromDataFrameandSeriesinputs, respectively.The
schema_inferencemodule implements logic for inference of dataframe/seriesstatistics (see
infer_*_statisticsfunctions).Some additional changes in this PR:
PandasDtypeenum class in service of schema inference functionality.DataFrameSchema.update_columnmethod andSeriesSchema.set_checksmethods that produce modified copies with updated properties.
Column.propertiesattribute.