PyWebIO is a Python library which provides a series of imperative functions to obtain user input and output on the browser. The input function of PyWebIO is blocking, and the output function will output content to user in real time.
You can use PyWebIO to build simple web applications or browser-based GUI applications without the need to have knowledge of HTML and JS.
The way of writing PyWebIO applications is more like writing a terminal program. You can think of the browser as a rich text terminal while writing PyWebIO app. If you have a terminal script, you only need to replace the input and output functions with PyWebIO's functions to turn your terminal script to a web application.
Features：
- Support click events, layout and output updates.
- Support integration into existing web project, currently supports Flask, Django, Tornado, aiohttp
framework.
- Support for asyncio and coroutine.
- Compatible with data visualization libraries, e.g., plotly, bokeh, pyecharts.
This is awesome! I'm going to use this to make a couple of applications! I've been looking for something to quickly make something easy for my clients. I'll probably put these behind a user-pass, but are there any issues that might arise security wise?
You can place a password validation input at the beginning of the code and return directly if the validation does not pass. PyWebIO ensures that only users who have passed the validation can continue with the rest of the code.
Between idom[0], streamlit[1], anvil[2], and PyWebIO this space is moving quickly.
While it's a little rough around the edges, idom has worked great for us. I look forward to trying out PyWebIO at some point - it targets a different but valid use case.
Does anyone know something like these in Ruby ecosystem? For heavily invested in RoR apps such rapid prototyping from `irb`/`pry` would be a day saver.
This was easy to install and get started with. I have a [ton] of one-off python scripts for various work-related purposes we all use. Things like PyWebIO can make them accessible to management types, who aren't going to read the usage or spend time understanding how to call them via CLI properly.
As someone who has only done back end for years and is lazy and don’t want to learn front end stuff, this is an inviting way to break into that world for me.
I'm giving this a spin for a small experiment that I'm playing with, however I need this to run alongside other code. I see the example for getting pywebio to work with its support python web frameworks end up at this:
webio_view(task_func)
However, I'm not clear on what task_func is, what arguments it takes, etc. Is there an example of a function like this working with any of the supported web frameworks?
Streamlit uses a responsive way to get input and doesn't rely on callbacks at all. Every time a user interacts with a widget, your script is re-executed and the output value of that widget is set to the new value during that run. It's amazing but also a little hard to understand.
In contrast, the way of writing PyWebIO app is more like writing a terminal program, except that the terminal here becomes a browser. The output functions will output content to user in real time, and the input functions will block until the user submit the input form.
So, PyWebIO doesn't re-execute the whole script like Streamlit does? I use streamlit, and that's one of its pain points. If the script is complicated, re-execution becomes slow.
Also does PyWebIO support defining inputs based on other ones? For example, to have a hierarchy of dropdowns (select company --> based on that selection, select employee --> etc).
PyWebIO won't re-execute the whole script. In pywebio, if the code executes to the end, the user session will also be closed. You can use `while` loop in your code to continuously receive user input in PyWebIO app.
PyWebIO now support defining inputs based on other ones, but I haven't written this feature into the documentation. Until then, you can solve this problem by splitting inputs with dependencies into multiple forms. (you can use first form to get company and then use another form to get employee)
What do you mean by "running apps from a directory?" Do you mean having multiple streamlit apps in a folder and being able to access all of them using a single server?
Both http and websocket protocol can be used to implement server-browser communication in PyWebIO. The websocket is default, and you can use `pywebio.platform.tornado_http.start_server()` or `pywebio.platform.path_deploy_http()` to use http polling to communicate.
You can use PyWebIO to build simple web applications or browser-based GUI applications without the need to have knowledge of HTML and JS.
The way of writing PyWebIO applications is more like writing a terminal program. You can think of the browser as a rich text terminal while writing PyWebIO app. If you have a terminal script, you only need to replace the input and output functions with PyWebIO's functions to turn your terminal script to a web application.
Features：
- Support click events, layout and output updates.
- Support integration into existing web project, currently supports Flask, Django, Tornado, aiohttp framework. - Support for asyncio and coroutine.
- Compatible with data visualization libraries, e.g., plotly, bokeh, pyecharts.
Links:
- Demos: http://pywebio-demos.demo.wangweimin.site/
- Documents: https://pywebio.readthedocs.io/en/latest/
PS: I am not a native speaker of English, so the documents may be a bit obscure. If you have any questions, please feel free to discuss on https://github.com/wang0618/PyWebIO/discussions