Nov 10, 2020 The first url presents a simple file upload html and responds back in json with the content of the uploaded file. Here is an example file for testing but you can upload any other excel file. The file upload handler uses request.getarray to parse the uploaded file and gets an array back. The parameter file is coded in the html form <. We will learn, with this explanation, how to insert and update a row with the help of the SQLAlchemy database in the Flask app. Update a Row With the Help of the SQLAlchemy Database in the Flask App. We have a simple model called EmployeeModel, which has a couple of fields. We will be working on this model. By default Flask will happily accept file uploads with an unlimited amount of memory, but you can limit that by setting the MAXCONTENTLENGTH config key from flask import Flask, Request app Flask(name) app.config&39;MAXCONTENTLENGTH&39; 16 1000 1000 The code above will limit the maximum allowed payload to 16 megabytes.. Unit testing for Flask. Conda Files; Labels; Badges; Error. May 01, 2022 Create project folder in a specified location, and name its uploadfilesusingpython and cd into the the folder by using command. cd uploadfilesusingpython Install flask. Type command below to install flask. pip install flask Create a templates folder. Inside project folder create a folder named templates. Create a uploads folder to save files. Sorry for the trouble I figured this out. I had a typo in the file name.