How to upload a file to the server (on python 3.8.5) via html form?

Question

Python

Hello! Created the logic for parsing the pdf file. Now I want to implement uploading a file via form to the server for parsing and writing to the Postgres database. The only problem is that I don’t understand how to upload the file and I can’t find it in the open
doc = fitz.open(pdf_document) # Открытие док-та

<form action="registration.py" method="POST">
  <div class="form-group">
  <label for="doc">Загрузите файл</label>
  <input type="file" class="form-control-file" id="doc">
  </div>
  <button type="submit" class="btn btn-outline-primary">Go!</button>
</form>

These are sections of code that are responsible for loading. The Python code is very long, but this line is responsible for opening what is presented

Answer 1

Thank you very much for the detailed answer
. Actually, I didn’t want to make a decision through php, and I didn’t know such a catch :) I’ll go and
see what tutorials there are