Test-Driven Development: Still a little confused...

I was going through the tutorial in the Django documentation and one of the last things covered is tests. The tutorial mentions a bug in the code and then writing a test to fix the bug. The recommendation is to create tests and then write/re-factor code until the test passes. My confusion is around how one would know what tests to create in the first place. I think things just haven't "clicked" for me yet.

Do you generally write a basic placeholder function, then write a detailed test for what output you want to get based on certain inputs, then fill out the function until the test passes? Any clarification on how you approach tests would be greatly appreciated.

/r/django
https://redd.it/ayrtjw

Python *args and **kwargs Made Easy

\*args and \*\*kwargs may seem scary, but the truth is that they are not that difficult to grasp and have the power to grant your functions with flexibility and readability.

​

[Python \*args and \*\*kwargs Made Easy](https://www.pythoncheatsheet.org/blog/python-easy-args-kwargs)

/r/Python
https://redd.it/ayr1mf

Another video on discovering hidden APIs with python is here! This time a bit more challenging, a bit more fun!
https://www.youtube.com/watch?v=6zge0N962aw

/r/Python
https://redd.it/ayofit

Sentence Similarity in Python using Doc2Vec
https://kanoki.org/2019/03/07/sentence-similarity-in-python-using-doc2vec/

/r/Python
https://redd.it/ayrbw6

[D] Are the connections between deep learning and neuroscience still relevant?

I think it's a pretty common belief here that modern deep learning research has moved away from being inspired by neuroscience, and I would say I was also, until recently, under this belief. However, after reading Moheb Costandi's excellent *Neuroplasticity*, it made me rethink that a bit.


Although I don't think most modern DL research is directly inspired by neuroscience, there are some interesting connections I hadn't realized before. For example:

* ResNet: The idea of a gradient super-highway is not so unlike the importance of signal propagation in Long Term Potentiation (LTP), which is thought to underlie learning and memory in the brain. Some researchers also believe that retrograde signaling happens in LTP, meaning that the LTP signal is back-propagated to the instigating pre-synaptic neuron. Obviously, the connection with back-propagation in DL is clear, but backprop is not so much a new/modern technique.
* Transfer Learning: The ability of neuroplasticity in brain-injured or dear/blind peoples allows specialized neural regions to adapt and perform tasks outside their specialized region. For example, some blind people use their visual cortex more during language processing than the control.
* Capsule Networks: Actually indeed inspired by biology, these networks take a routing approach to visual classification. This

/r/MachineLearning
https://redd.it/ayvxvc

The easiest way to send emails with Django (using SES from AWS)
https://hackernoon.com/the-easiest-way-to-send-emails-with-django-using-ses-from-aws-62f3d3d33efd

/r/django
https://redd.it/ayuwne

Remote Oscilloscope Operation with Python and VISA
https://mindchasers.com/dev/remote-scope-python

/r/Python
https://redd.it/ayzyqy

How to share my REST API?

Hi.

I'm new to REST API and I just created some API for my blog but I want share it with someone to work with in front side with react.

How Can I share it? because if I give him the project It's wrong surly. cause he should Install python django pipenv and so on. There must be a way.

/r/django
https://redd.it/az0r8x

Python looping through multiple receipts of users, and printing the output content with printer?

How can i do that with django and python.

I found printd library and its printURL function but it does not work in a good way. I looking a new solution for me. I tried to make a loop and use this function.

Printd library : [https://github.com/joseluisq/printd](https://github.com/joseluisq/printd)

​

I have a system where users pay their debts. And i need to print receipts of users. At the end of the month, i will send them their receipts.

/r/django
https://redd.it/az16nd

High Performance Data Processing in Python
https://www.youtube.com/watch?v=TpEh5LVo93o

/r/Python
https://redd.it/az1cbd

I teach Python in realtime, using Live YT / FB Live and a Chrome extension. I'll expand to reddit if this post gains interest.

Hi r/python,

Redditor of 10+ years here.

I've started teaching live & realtime, using Youtube Live & Facebook Live, and an extension-based IDE.

The group sessions are lots of fun. You can find one [here](https://www.facebook.com/codebasetech/videos/400550887157128).

So far I'm on meetup.com, and Facebook. Reddit is my next big step (please be nice to me, i've invested a lot of my time and effort into this).

I do have paying members, but am putting out content for free, and am not entirely decided on whether to be a paying service or a free service (only been up since November).

You can either join us on Codebase for a live Python session at 7pm London time this Sunday: [https://fb.com/codebasetech](https://fb.com/codebasetech) or if this post gains enough traction, i'll see if i can embed a live video in reddit, so we can have live sessions either in this sub, or in /r/codebase.

Would love to hear your thoughts.

Thanks,

cpplinuxdude


/r/Python
https://redd.it/az3ikn

Python Code Generation Tools

What do you guys use to generate Python code? I saw that a lot of people just use Jinja2 with some templates, which looks simple and powerful. You still have to generate the environments and write the templates. Now I'm looking around whether someone already did the work of generalizing that step (thinking about fields in classes, inheritance, constructors etc. and how to map that data to the environment) or whether I have to do it myself.

TLDR: Are there simple but powerful Python code generation "frameworks"?

EDIT:

* I found [pymultigen](https://pypi.org/project/pymultigen/). Seems like it helps with creating code in multiple files.
* Looks like [pyecoregen](https://github.com/pyecore/pyecoregen) is a specialized multi-file code generator based on pymultigen.

/r/Python
https://redd.it/az4mce

MacroPy3 - macros in python
https://macropy3.readthedocs.io/en/latest/

/r/Python
https://redd.it/az46qw

Real-world, practical business uses for Python?

There is a lot of information online and how and why to use Python, but I have found very little information about practical, specific business uses. How do you use Python to make your life easier at work, or to make money on the side?

I have spent several months learning the R programming language, and I have hit a point where I am questioning how practical it is. Truthfully, I can do 99% of what I can do in R using Microsoft Excel - without spending 15 minutes adjusting tick marks on a bar chart.

I am strongly considering switching to Python. I hear so much about its ease of use and many appplications. I just can't find much about specific problems that it can be used to solve.

/r/Python
https://redd.it/az6nic

User Input and Output for beginners
https://youtu.be/yVeJVpRnPiw

/r/Python
https://redd.it/az78er

How to Use Color Editor
https://www.youtube.com/watch?v=cXTmwNrj4-g&t=3s

/r/Python
https://redd.it/az89f6

What framework to use to build a MOOC website ?

Hi !

As the title says, I need to build a MOOCs website (website that presents a series of online video courses). I know some django, I use it for simple websites, I thought I could built it using simply Django, but then I saw the python-based CMS (mezzanine, django-cms ...etc ) but I'm not sure if I should use them.

​

My project should include :

\- Courses : each course has a number of pages, each page contains either a video or some notes.

\- playlists : a way to play all videos in one course in a row

\- Editing capabilities for "old school" teachers who have no idea what programming is

\- Commenting ! students should be able to have their own accounts and courses follow ups.

\- And some kind of a discussion forum for students to ask questions and get answered by other students or the teachers

​

I took few hours reading about some solutions, and I think Django-CMS could be great for this.

What do you guys think about it ? do you have any experience with different python-CMSs ?
Thanks a lot !


/r/django
https://redd.it/az2c63

Not trusted when using remote jupiter notebook

Hi,

I am using jupiter notebook remotely using my universities remote computer system. This was all working fine but now when I login with my token and try to work on the files they are read only. There is also a message saying they are 'not trusted'. Any advice on how to fix this?

I have tried to use the 'jupyter trust notebook.iymb' command but I get a

​

\> Error executing Jupyter command 'trust': \[Errno 2\] No such file or directory

​

error message. Thanks for the help!

/r/IPython
https://redd.it/az61yk

Problem with trailing slashes ("/") while building a website using Frozen Flask

I'm using Flask & Frozen Flask to generate a website, though for some reason the trailing "/" it uses to get the reference to the stylesheet as well as other images seem to break the website from being able to retrieve it.

I'm using `url_for('static', filename='style.css')` within the jinja templates to retrieve the file path.

This generates the URL: `/static/style.css`

This works perfectly fine while the server is running, though after freezing the website using Frozen Flask, Chrome & Firefox both have issues loading the required files, and the stylesheet nor the images load at all.

After removing the trailing slash within the URLs using Inspect Element, the frozen website is able to load the files just fine: `static/style.css`

Does anyone know a way to remove the trailing slash while freezing with Frozen Flask, or at least can enlighten me on why this problem is happening?

Thanks.

/r/flask
https://redd.it/az8wu7

[D] The Promise of Hierarchical Reinforcement Learning

PhD student Yannis Flet-Berliac gives a comprehensive overview of the latest in Hierarchical Reinforcement Learning. [https://thegradient.pub/the-promise-of-hierarchical-reinforcement-learning/](https://thegradient.pub/the-promise-of-hierarchical-reinforcement-learning/)

/r/MachineLearning
https://redd.it/az7pi9

Blog Post: React with Django (Part 1)

Hello!

I put up a new blog post that talks about integrating React and Django.

[https://www.codexplore.io/blog/integrating-react-and-django/](https://www.codexplore.io/blog/integrating-react-and-django/)

I am also interested in hearing how you all integrate the two.

/r/django
https://redd.it/az8nil