how to convert dataframe into dictionary in python code example

Example 1: how to make a pandas dataframe from a dictionary

>>> data = {'col_1': [3, 2, 1, 0], 'col_2': ['a', 'b', 'c', 'd']}
>>> pd.DataFrame.from_dict(data)

Example 2: convert dict to dataframe

#Lazy way to convert json dict to df

pd.DataFrame.from_dict(data, orient='index').T

Example 3: dataframe to dictionary

>>> df.to_dict('records')
[{'col1': 1, 'col2': 0.5}, {'col1': 2, 'col2': 0.75}]

Example 4: convert pandas dataframe to dict with a column as key

df.set_index('columnName').T.to_dict()