i-stand | web component to embed in your personal site | Frontend Framework library
kandi X-RAY | i-stand Summary
kandi X-RAY | i-stand Summary
A web component to embed in your personal site to show you stand with the protests against racism and police brutality.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of i-stand
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QUESTION
I have created a GUI in python using Tkinter which connects to an Arduino nano. I can use my GUI to flash the firmware on the Arduino using AVRDUDE with no issue but this pops up a CMD box while programming. What I want is to redirect or pipe that to a text box to my GUI instead. If I use normal windows command like ping, dir etc, this works with no issue (example code and screenshot below) but when I try and flash the Arduino, it does flash but still in its own console and does not redirect. I'm guessing the AVRDUDE printf that's the issue but is there a way to redirect the output?
I have also tried adding "2> e:\\output.txt"
to the end like in this link https://learn.sparkfun.com/tutorials/raspberry-pi-stand-alone-programmer/parsing-output-from-avrdude-w-python to save to a file then I can read in the file. If I do that in CMD, it works but not if I try from python, I get
Bad parameter >2
even if I try >> test.txt.
...ANSWER
Answered 2021-Apr-18 at 13:39After spending some hours on it I have found a fix that works if someone has a better way I would appreciate your response.
QUESTION
Can uWSGI be a web-server and application server at the same time?
For example, stand-alone WSGI Containers https://flask.palletsprojects.com/en/1.1.x/deploying/wsgi-standalone/ But again, it recommends to use an HTTP server. Why? Can't uWSGI handle HTTP requests?
I have read different articles about deploying a Flask application. They say, I'd need uWSGI and nginx - one popular option.
https://uwsgi-docs.readthedocs.io/en/latest/tutorials/Django_and_nginx.html
https://flask.palletsprojects.com/en/1.1.x/deploying/uwsgi/#uwsgi
My Flask application. app_service.py
...ANSWER
Answered 2020-Jun-03 at 19:11For running flask, you do not need nginx, just a webserver of your choice, but life with nginx is just easier. If you are using Apache, you want to consider to use a WSGI.
I remember reading somewhere in the Flask documentation what is stated by an answer to "Are a WSGI server and HTTP server required to serve a Flask app?" as
The answer is similar for "should I use a web server". WSGI servers happen to have HTTP servers but they will not be as good as a dedicated production HTTP server (Nginx, Apache, etc.).
The main idea behind is the architectural principle of splitting layers to ease debugging and increase security, similarly to the concept that you split content and structure (HTML & CSS, UI vs. API):
- For the lower layers, see e.g. https://en.wikipedia.org/wiki/Transport_layer Having a dedicated HTTP server allows you to do package-filtering etc. on that level.
- The WSGI is the interface layer between the webserver and the webframework.
I have seen clients only running a WSGI server alone, with integrated HTTP support. Using an additional webserver and/ or proxy is just good practice, but IMHO not strictly necessary.
References- https://flask.palletsprojects.com/en/1.1.x/deploying/mod_wsgi/ describes the Apache way for flask
- https://flask.palletsprojects.com/en/1.1.x/tutorial/deploy/ elaborates on how a production environment should look like
- Deploying Python web app (Flask) in Windows Server (IIS) using FastCGI
- Debugging a Flask app running in Gunicorn
- Flask at first run: Do not use the development server in a production environment
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