Simple web based Python 3 IDE with Brython and Github integration
Brython-Server is a Flask-based web application focused on providing a simple Python 3 development environment where source files are hosted on Github.
You can try Brython-Server to get a feel for how it works.
When the page loads, you can begin writing Python 3 code right away. To execute your code, press the GO! button.
To load Python 3 source code hosted on Github, you must should first log in to Github with the login button. Github will ask you to authorize Brython-Server in the next page.
To load your source, paste the Github URL of your source file or repository
into the text control at the top of the page. Press
<Enter> or the load
button to retrieve the source from Github.
You may make any changes you want to the source code and re-run it. If you would like to save your work back to Github, just press the commit button.
Google Drive Support
To load Python 3 source code stored in your Google Drive account, you first have to give Brython-Server permission to access your account by pressing the authorize button with the Google Drive logo on it. Once you have logged in to your Google account and given Brython-Server (or the website that runs on Brython-Server) permission to access your Drive files, you will have Google Drive a load and save buttons.
The Google Drive load button directs you to a standard Google Drive file picking screen. Only compatible text files are available to pick. Once you have selected a file, the URL for the file will be displayed in the upper left edit window.
The Google Drive save button will upload any changes you have made to a file since you downloaded it, but only if you own or have edit priveleges on the file. If you didn't download a file first, the save button will prompt you for a new file name. In this case, Brython-Server will create a new file with your chosen name in the root of your Google Drive.
If you previously load-ed or refreshed an existing file from Google Drive then the save button will simply udate your file with any changes you have made since then.
Authorizing Google Drive will also add the Brython-Server app to your Google Drive. This will give you a custom new file type in Google Drive, and a custom option under the Google Drive Open with context menu.
Note: files that were not created by Brython-Server may not be opened from the load button unless you previously opened them with the Google Drive Open with context menu.
Note: you may access (but not modify) any public Github or Google Drive Python source file without logging in to Github, Google, or creating an account. You can edit the source file locally in your browser but will not be able to commit any changes unless you are logged in and have priveleges to do so.
Brython-Server supports the Python turtle to the extent that it is supported by the underlying Brython interpreter. Its usage is simple, but slightly non-standard. For example:
from brythonserver import turtle t = turtle.Turtle() t.forward(100) t.right(90) t.forward(100) turtle.done()
Brython-Server includes built-in support for the Ggame graphics engine. For example, a trivial program from the Ggame documentation:
from ggame import App, ImageAsset, Sprite # Create a displayed object at 100,100 using an image asset Sprite(ImageAsset("bunny.png"), (100, 100)) # Create the app, with a default stage APP = App() # Run the app APP.run()
The best way to install Brython-Server is with pip and virtualenv. Create and activate your virtual environment then install Brython-Server with:
pip install brython-server
A full Brython-Server installation that is capable of interacting with Github should have several environment variables set for production use:
Required for Github functionality:
- githubtoken (an optional Github personal access token)
- githubsecret (Github oauth secret)
- githubclientid (Github oauth client id)
Required for Google Drive functionality:
- googleclientid (Google Client ID)
- googleapikey (Google API Key. Brython Server requires the drive/files and filePicker APIs)
- googleappid (Google Application ID)
Required for creating a "personalized" Brython-Server instance:
- sitetitle (A string that will be displayed as the "name of the site")
- sitecontact (An e-mail address to use for contact)
- siteurl (A full URL to the website)
- flasksecret (A Flask application secret key)
Required for connecting to a non-standard Redis instance:
- redishost (An IP address)
- redisport (The port number)
Note: to generate a unique, random Flask secret key, enter the following in a Python console:
>>> import os >>> os.urandom(24)
Use the string that results as the value of the flasksecret environment variable.
To run the server in stand-alone development mode (never in production!) execute (for example) from the Python 3 shell:
Python 3.7.0 (default, Oct 4 2018, 21:19:26) [GCC 5.4.0 20160609] on linux Type "help", "copyright", "credits" or "license" for more information. >>> from brythonserver.main import APP Update Brython scripts to verion 3.7.3 >>> APP.run(host="0.0.0.0", port=3000) * Serving Flask app "brythonserver.main" (lazy loading) * Environment: production WARNING: This is a development server. Do not use it in a production deployment. Use a production WSGI server instead. * Debug mode: off * Running on http://0.0.0.0:3000/ (Press CTRL+C to quit)
To run the server in a production environment, use gunicorn:
$ gunicorn -b 0.0.0.0:3000 -w 4 brythonserver.main:APP
To begin working with Brython Server in development environment:
- Clone this repository and cd into it.
- Create a virtual environment:
python3 -m venv ./env
- Activate the virtual environment:
- Install the dependencies:
pip install -r requirements.txt
Your development environment will need redis to execute and standardjs to
run_js_tests scripts (in the scripts folder).
Prior to executing the server in your development environment you will have to perform the following manual steps to populate the Brython distribution files where Brython Server can access them:
cd ~/workspace/brython-server mkdir -p brythonserver/static/brython cd brythonserver/static/brython python3 -m brython --update
Now you should be able to run Brython Server in your development environment using a script similar to this:
export githubclientid=<insert your github client id here> export githubsecret=<insert your github secret here> export githubtoken=<insert your personal github token here> export googleclientid='<insert your google client id here>.apps.googleusercontent.com' export googleapikey='<insert your google api key here>' export googleappid='<insert your google app id here>' export sitetitle="<insert the name of your development site here>" export sitecontact=<insert an e-mail address here> export siteurl=<insert the url for your development page here> export PORT=<use your port number here> source ~/workspace/brython-server/env/bin/activate cd ~/workspace/brython-server python3 wsgi.py
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