EHN: A function to read dict from `values_to_dict` returns

[Zeroto521]

>>> import json
>>> import dtoolkit.accessor
>>> import pandas as pd
>>> df = pd.DataFrame(
...     {
...         "x" : ["A", "A", "B", "B", "B"],
...         "y" : ["a", "b", "c", "d", "d"],
...         "z" : ["1", "2", "3", "3", "4"],
...     }
... )
>>> df
    x  y  z
0  A  a  1
1  A  b  2
2  B  c  3
3  B  d  3
4  B  d  4

Turn the above case into the following case.

>>> import json
>>> import dtoolkit.accessor
>>> import pandas as pd
>>> df = func(
...     {
...         "A": {
...             "a": ["1"],
...             "b": ["2"],
...         },
...         "B": {
...             "c": ["3"],
...             "d": ["3", "4"],
...         },
...     }
... )
>>> df
    x  y  z
0  A  a  1
1  A  b  2
2  B  c  3
3  B  d  3
4  B  d  4

[Zeroto521]

dict could convert to series or dataframe. But the index may lose.

[Zeroto521]

a easy way to convert to series.

>>> pd.Series({'a': [1, 2]}).explode()
a    1
a    2
dtype: object