Pandas ninja

Source code of pandas ninja https://pandas.ninja.

Pandas ninja is teaching game made to become a master with the pandas python libraires. There are challenges produced by the community and player must resolve it using one python expression. This application was possible thanks to the pyodide.js library which makes possible to run python from client side.

It is my first web application made with the following technology. So feel free to fix my code and add contribution.

Challenges contribution

I invite you to create challenges and share them by making using pull request.
A challenge is a json file with an input and an expected dataframe.
All challenges are stored in the public/challenges/ folder.

Examples

{
  "title": "example",
  "author": "@author_name",
  "placeholder": "#This text will be place into the code editor \nprint(df)",
  "input": [
    {
      "count": 2,
      "fruits": "apple"
    },
    {
      "count": 4,
      "fruits": "banana"
    }
    ], 
     "expected": [
    {
      "count": 4,
      "fruits": "apple"
    },
    {
      "count": 2,
      "fruits": "banana"
    }
    ]

challenge.py

a python script challenge.py is available to create challenges. It depends only on simplejson and pandas.

Setup

pip install simplejson
wget https://raw.githubusercontent.com/dridk/pandas-ninja/main/challenge.py

Create a script file with the following code :

from challenge import Challenge
import pandas as pd
import numpy as np

file = "public/challenges/my_challenge.py"
c = Challenge()
c.name= "my challenge"
c.author  = "@github_account"
c.placeholder= " # A comment to put on source code editor " 

c.input_df = pd.DataFrame(...)
c.expected_df = pd.DataFrame(...)

c.show()
c.save(file)

Launch the web app

git clone https://github.com/dridk/pandas-ninja
cd pandas-ninja
npm install 
npm run dev