Instant visualization of Python AST and Code Objects.

Requires modern Python 3.7+

pip install instaviz

Instaviz is designed to be used like PDB, it will start a webserver when the show() function is called. Simply pass a class or function to be displayed

def my_function():
    # your code
    ...

# your code
import instaviz; instaviz.show(my_function)

You can also run instaviz inside the Python REPL.

[GCC 7.3.0] :: Anaconda, Inc. on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import instaviz
>>> def fib(n):
...     a, b = 1, 1
...     for i in range(2, n + 1):
...         a, b = b, a + b
...     return b
... 
>>> instaviz.show(fib)
Bottle v0.12.17 server starting up (using WSGIRefServer())...
Listening on http://localhost:8080/
Hit Ctrl-C to quit.

At times you may wish to be able to access the page from an external device. This can be acheived by specifying the host and port when calling the show function.

instaviz.show(func_name, host='*', port=80)

This package bundles some 3rd party javascript libraries. All libraries are bundled in the package so that the WebUI doesn't need to make any requests to the internet to protect the privacy of your code.

json2html json2html-visualizer visjs