Django Pandas to http response (download file)

Question

Python: 2.7.11

Django: 1.9

Pandas: 0.17.1

How should I go about creating a potentially large xlsx file download? I\'m creating a xlsx file with panda

Answer 1

With Pandas 0.17+ you can use a StringIO/BytesIO object as a filehandle to pd.ExcelWriter. For example:

import pandas as pd
import StringIO

output = StringIO.StringIO()

# Use the StringIO object as the filehandle.
writer = pd.ExcelWriter(output, engine='xlsxwriter')

# Write the data frame to the StringIO object.
pd.DataFrame().to_excel(writer, sheet_name='Sheet1')
writer.save()
xlsx_data = output.getvalue()

print len(xlsx_data)

After that follow the XlsxWriter Python 2/3 HTTP examples.

For older versions of Pandas you can use this workaround.