Convert Pandas dataframe to csv string

Question

Here is an example of what I am trying to get:

I have:

import pandas as pd 
df = pd.DataFrame({'A' : [0, 1], 'B' : [1, 6]})

My goal is:

',A,Bn0,0,1n1,1,6n'

I can achieve this with lazy and horrible:

df.to_csv('temp.csv') # create unnecessary file
body = open('temp.csv').read()

Also to_string() methods looks very promising; however, the best I can come up with is this:

body = df.to_string()[1:].replace('  ', ',') + 'n'

This does not create an unnecessary file, but seems sloppy and perhaps not very reliable.

Am I missing a simpler solution?

Asked By: Akavall

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Source

Answer 1

In [10]: df = pd.DataFrame({'A' : [0, 1], 'B' : [1, 6]})

In [11]: import io

In [12]: s = io.StringIO()

In [13]: df.to_csv(s)

In [14]: s.getvalue()
Out[14]: ',A,Bn0,0,1n1,1,6n'

Answered By: Jeff

Answer 2

The simplest way is just to not input any filename, in this case a string is returned:

>>> df = pd.DataFrame({'A' : [0, 1], 'B' : [1, 6]})
>>> df.to_csv()
',A,Bn0,0,1n1,1,6n'

Answered By: elyase

Convert Pandas dataframe to csv string

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