File upload

File Upload

Let's upload file to the Python Notebook.

Required packages

You need to install mercury package to run this example.


Please import required packages:

import mercury as mr

Let's add File upload widget:

file = mr.File(label="File upload", max_file_size="10MB")

We can print uploaded file name and path (path will be temporary):

print(f"Uploaded file name: {file.filename}")
print(f"Uploaded file path: {file.filepath}")

We can read file as normal file:

if file.filepath is not None:
    with open(file.filepath, "r") as fin:

It is important to check if filepath is not None before reading the file. The filepath attribute will be set after file is uploaded.

The screenshot of the notebook's code in the Jupyter Notebook:

Python notebook with file upload widget

Mercury App

Please start Mercury in the same directory as your notebook:

mercury run

You should see app running at address:

The animation with Mercury App and file upload example:

Mercury App with file upload widget