pd.read_json not supported

[dorisjlee]

Unlike pd.read_csv, when we do pd.read_json, the dataframe is read in as a pandas dataframe instead of a lux dataframe. One possible difference is because read_csv is part of pd.io.parsers, whereas read_json is part of pd.io.json. This bug is part of the larger effort for ensuring pandas API coverage. We do not currently have a set of test for different file inputs, i.e., read_* functions in Pandas.

import lux
import pandas as pd
df = pd.read_json('{"key_1":{"item_1":1,"item_2":2,"item_3":3},"key_2":{"item_1":"x","item_2":"y","item_3":"z"}}')
type(df)