Fast convert JSON column into Pandas dataframe

Question

I\'m reading data from a database (50k+ rows) where one column is stored as JSON. I want to extract that into a pandas dataframe. The snippet below works fine but is fairly

Answer 1

json_normalize takes an already processed json string or a pandas series of such strings.

pd.io.json.json_normalize(df.data.apply(json.loads))

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setup

import pandas as pd
import json

df = pd.read_csv('http://pastebin.com/raw/7L86m9R2', \
                 header=None, index_col=0, names=['data'])