Why Isn't My Python Requests File Upload Working?

How to Upload Files with Python Requests: Resolving File Not Received Issue

Problem:

When uploading a file using Python's requests library, the server fails to receive the file, resulting in an empty response.

Analysis:

The code provided for uploading a file appears correct, but there's a discrepancy with the 'upload_file' keyword:

files = {'files': open('file.txt','rb')}
values = {'upload_file' : 'file.txt' , 'DB':'photcat' , 'OUT':'csv' , 'SHORT':'short'}

In this code, the 'files' dictionary is misnamed. It should be 'upload_file' instead.

Solution:

To rectify the issue, replace the 'files' dictionary with 'upload_file':

files = {'upload_file': open('file.txt','rb')}
values = {'DB':'photcat' , 'OUT':'csv' , 'SHORT':'short'}

This ensures that the file is uploaded using the 'upload_file' parameter, as expected by the server.

Additional Information:

• If 'upload_file' is meant to be the file itself, remove the 'values' parameter, as the file data is now included in the 'files' parameter.
• If the entire POST body is to be taken from a file, do not use the 'files' parameter. Instead, post the file directly as data and set a Content-Type header as needed.

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