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You're reading from  Mastering pandas. - Second Edition

Product typeBook
Published inOct 2019
Reading LevelIntermediate
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ISBN-139781789343236
Edition2nd Edition
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Author (1)
Ashish Kumar
Ashish Kumar
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Ashish Kumar

Ashish Kumar is a seasoned data science professional, a publisher author and a thought leader in the field of data science and machine learning. An IIT Madras graduate and a Young India Fellow, he has around 7 years of experience in implementing and deploying data science and machine learning solutions for challenging industry problems in both hands-on and leadership roles. Natural Language Procession, IoT Analytics, R Shiny product development, Ensemble ML methods etc. are his core areas of expertise. He is fluent in Python and R and teaches a popular ML course at Simplilearn. When not crunching data, Ashish sneaks off to the next hip beach around and enjoys the company of his Kindle. He also trains and mentors data science aspirants and fledgling start-ups.
Read more about Ashish Kumar

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Writing JSON objects to a file

The to_json() function allows any DataFrame object to be converted into a JSON string or written to a JSON file if the file path is specified:

df = pd.DataFrame({"Col1": [1, 2, 3, 4, 5], "Col2": ["A", "B", "B", "A", "C"], "Col3": [True, False, False, True, True]})
df.to_json()

Take a look at the following output:

JSON output

The orientation of the data in the JSON can be altered. The to_json() function has an orient argument which can be set for the following modes: columns, index, record, value, and split. Columns is the default setting for orientation:

df.to_json(orient="columns")

Take a look at the following output:

JSON output column orientation

Orienting along the index acts like a transpose of the former case with a reversal of row and column...

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Mastering pandas. - Second Edition
Published in: Oct 2019Publisher: ISBN-13: 9781789343236

Author (1)

author image
Ashish Kumar

Ashish Kumar is a seasoned data science professional, a publisher author and a thought leader in the field of data science and machine learning. An IIT Madras graduate and a Young India Fellow, he has around 7 years of experience in implementing and deploying data science and machine learning solutions for challenging industry problems in both hands-on and leadership roles. Natural Language Procession, IoT Analytics, R Shiny product development, Ensemble ML methods etc. are his core areas of expertise. He is fluent in Python and R and teaches a popular ML course at Simplilearn. When not crunching data, Ashish sneaks off to the next hip beach around and enjoys the company of his Kindle. He also trains and mentors data science aspirants and fledgling start-ups.
Read more about Ashish Kumar