EdgeDB: A New Beginning
https://edgedb.com/blog/edgedb-a-new-beginning/

/r/Python
https://redd.it/8brz8a

Python Top 10 Articles for the Past Month-v.Apr 2018
https://medium.com/@Mybridge/python-top-10-articles-for-the-past-month-v-apr-2018-ba0fec7529cc

/r/Python
https://redd.it/8bpfdy

setInterval not auto refreshing.

Not sure what the issue is. I am using setInterval auto refresh data. The page is not actually going to the route. It seems like it is just reloading the old data.

Flask endpoint
@mod.route('/autoloaddata/', endpoint='autoloaddata')

I do an initial load when you first visit the page. Which works.
$(function(){
$("#loaddata").load("{{ url_for('datapage.autoloaddata') }}");
});

setInterval(function()
{
$('#testreload').load("autoload/");
$('#currentmap').load("autoload/");
}, 30000);

Looking at my console window `https://example.com/datapage/autoloaddata/` is coming back. But with the original load data. Its not hitting the route again.
if I copy the link from my console it hits the route and brings back new data.


/r/flask
https://redd.it/8brms4

RPi3, Flask and ds18b20 temperature sensor.

I need help.
I would like to use my Raspberry Pi 3 to get the temperature reading from ds18b20 sensor(1-wire) and then use flask to answer to GET requests with:
{
"temperature": 25.8
}
Right now I have successfully read data in console with python, but I can't figure it out how to combine this all with flask.

Maybe anyone has done it or can help me otherwise?

/r/flask
https://redd.it/8bq6u5

[P] Python script to extract features from images using various pretrained networks.
https://github.com/cameronfabbri/Compute-Features

/r/MachineLearning
https://redd.it/8bvqa9

[D] Anyone having trouble finding papers on a particular topic ? Post it here and we'll help you find papers on that topic ! | Plus answers from 'Helping read ML papers' post from few days ago.

There's a lot of variation in terms in machine learning which can make finding papers for a particular concept very tricky at times.

If you have a concept you would like to obtain more papers about, post it here (along with all papers you already found on said concept) and we'll help you find them.

I've seen a few times someone release a paper, and someone else point out someone has implemented very similar concepts in a previous paper.

Even the Google Brain team has trouble looking up all instances of previous work for a particular topic. A few months ago they released a paper of Swish activation function and people pointed out others have published stuff very similar to it.

>As has been pointed out, we missed prior works that proposed the same activation function. The fault lies entirely with me for not conducting a thorough enough literature search. My sincere apologies. We will revise our paper and give credit where credit is due.

https://www.reddit.com/r/MachineLearning/comments/773epu/r_swish_a_selfgated_activation_function_google/dojjag2/

So if this is something that happens to the Google Brain team, not being able to find all papers on a particular topic is something all people are prone too.

So post a topic/idea/concept, along with all the papers you already found on it, and we'll help you find more.

Even if you weren't thinking about looking for one in particular, it doesn't hurt to check if you missed anything. Post your concept anyway.

Here's an example of two papers whose authors didn't know about each other until they saw each other on twitter, and they posted papers on nearly the exact same idea, which afaik are the only two papers on that concept.

Word2Bits - Quantized Word Vectors

https://arxiv.org/abs/1803.05651

Binary Latent Representations for Efficient Ranking: Empirical Assessment

https://arxiv.org/abs/1706.07479

Exact same concept, but two very different ways of descriptions and terminology.

-----------------------------------------------

I also want to give an update to the post I made 3 days ago where I said I would help on any papers anyone was stuck on.

https://www.reddit.com/r/MachineLearning/comments/8b4vi0/d_anyone_having_trouble_reading_a_particular/

I wasn't able to answer all the questions, but I at least replied to each of them and started a discussion which would hopefully lead to Answers. Some discussions are on going and pretty interesting.

I actually indexed them by Paper name in this subreddit

https://www.reddit.com/r/MLPapersQandA/

I hope people go through them, because some questions are unanswered so perhaps there were some people who didn't get around to opening the papers, but when they see the discussion of the problem they'll know the answer and can answer it.

Also, there are a lot of FANTASTIC and insightful answers for the questions that did get answered. Special thanks to everyone who answered.

/u/TomorrowExam

/u/Sohakes

/u/RSchaeffer

/u/straw1239

/u/stuvx

/u/geomtry

/u/MohKohn

/u/bonoboTP

/u/min_sang

Apologies if I missed anyone.

I might do a round 2 of this in a week or two depending on how much free time I have, with a much better format I planned out.

Anyone who participates in this post will have priority if they have a paper by then.





/r/MachineLearning
https://redd.it/8bwuyg

Updating a single value of a row in a Database

Hi,
I'm trying to change a single value (an int in the postgres database) after pushing a button in a template. However, all tutorials that I could find talk about sending a full form of all the row to edit. Anyone have any idea to create a Form with a single value modified or something like that?
Thanks for your help, really new to Django and trying to get it right.

/r/djangolearning
https://redd.it/8bvwxk

r/Python Official Job Board

Please read the rules \- they've updated slightly!

Top Level comments must be **Job Opportunities.**

Please include **Location** or any other **Requirements** in your comment. If you require people to work on site in San Francisco, *you must note that in your post.* If you require an Engineering degree, *you must note that in your post*.

Please include as much information as possible.

If you are looking for jobs, send a PM to the poster.

Going to try to make this board shorter term than the last post \- aiming for once every two months.

/r/Python
https://redd.it/8bx6md

Stream Iphone camera to flask website?

I'm trying to find a way to use the Iphone camera as video input for some object recognition I wrote in Python. I thought I'd might be able to do it using a flask website. Has anyone tried anything similar or is it even possible?

/r/flask
https://redd.it/8c0650

pythonhearted. feel free to get the high resolution image from github and use it any for personal needs.

/r/Python
https://redd.it/8bxtre

Flask 1.0 soon?

It looks like all the items have been checked in the 1.0 milestone. Any word on 1.0?

https://github.com/pallets/flask/milestone/2

/r/flask
https://redd.it/8bzt02

Django Deployment on Ubuntu 16.04 with web server Nginx - Permission Denied Error

I am trying to deploy a django website on a Ubuntu 16.04 system using nginx but I am having issues.

**ERRORS**

Error I get from my nginx `error.log` file:

connect() to unix:/home/teddycrepineau/contoursandcolors/contoursandcolors.sock failed (13: Permission denied) while connecting to upstream, client: 64.125.191.37, server: 173.255.210.63, request: "GET /favicon.ico HTTP/1.1", upstream: "uwsgi://unix:/home/teddycrepineau/contoursandcolors/contoursandcolors.sock:", host: "173.255.210.63", referrer: "http://173.255.210.63/"

Status of `uwgsi`:

$ uwsgi status
uwsgi[25361]: thunder lock: disabled (you can enable it with --thunder-lock)
uwsgi[25361]: uwsgi socket 0 bound to UNIX address /home/teddycrepineau/contoursandcolors/contoursandcolors.sock fd 3
uwsgi[25361]: Python version: 3.5.2 (default, Nov 23 2017, 16:37:01) [GCC 5.4.0 20160609]
uwsgi[25361]: !!! Python Home is not a directory: /home/teddycrepineau/Env/contoursandcolors !!!
uwsgi[25361]: Set PythonHome to /home/teddycrepineau/Env/contoursandcolors
uwsgi[25361]: Fatal Python error: Py_Initialize: Unable to get the locale encoding
uwsgi[25361]: ImportError: No module named 'encodings'
uwsgi[25361]: Current thread 0x00007f0ec8429700 (most recent call first):
uwsgi[25361]: Thu Apr 12 13:31:57 2018 - [emperor] curse the uwsgi instance contoursandcolors.ini (pid: 4955)
uwsgi[25361]: Thu Apr 12 13:32:00 2018 - [emperor] removed uwsgi instance contoursandcolors.ini

**SET UP**

* Using Python 3
* Ubuntu 16.04
* Using Virtualenvwrapper and virtualenv

Virtualenvwrapper set up

echo "export WORKON_HOME=~/Env" >> ~/.bashrc
echo "source /usr/local/bin/virtualenvwrapper.sh" >> ~/.bashrc

`/etc/uwsgi/sites/contoursandcolors.ini`:

[uwsgi]
project = contoursandcolors
uid = teddycrepineau
base = /home/%(uid)

chdir = %(base)/%(project)
home = %(base)/Env/%(project)
module = %(project).wsgi:application

master = true
processes = 2

socket = %(base)/%(project)/%(project).sock
chmod-socket = 664
vacuum = true


`/etc/nginx/sites-available/contoursandcolor`:

server {
listen 80;
server_name 173.255.210.63;

location = /favicon.io { access_log off; log_not_found off; }

location /static/ {
root /home/teddycrepineau/contoursandcolors;
}

location / {
include uwsgi_params;
uwsgi_pass unix:/home/teddycrepineau/contoursandcolors/contoursandcolors.sock;
}
}

`/etc/systemd/system/uwsgi.service`:

[Unit]
Description=uWSGI Emperor service

[Service]
ExecStartPre=/bin/bash -c 'mkdir -p /run/uwsgi; chown teddycrepineau:www-data /run/uwsgi'
ExecStart=/usr/local/bin/uwsgi --emperor /etc/uwsgi/sites
Restart=always
KillSignal=SIGQUIT
Type=notify
NotifyAccess=all

[Install]
WantedBy=multi-user.target

**WHAT I'VE TRIED**

* Changed default python version from 2.7 to 3.5
* Change socket file location from project to run (get me a file not found error)
* I looked at quite a few StackExchange posts, but none have resolved my issue thus far

From what I read, my issue may be related to virtualenv location set up. Where should I go from here?

/r/django
https://redd.it/8bwxg3

How to add paypal checkout to a django-oscar project?

[django-oscar-paypal](https://github.com/django-oscar/django-oscar-paypal) is not maintained. How to add paypal support to a django-oscar project? Any library recommendation?

Thanks for your help!

/r/django
https://redd.it/8bu004

Qt for Python is coming to a computer near you
http://blog.qt.io/blog/2018/04/13/qt-for-python-is-coming-to-a-computer-near-you/

/r/Python
https://redd.it/8c3c0o

Django - Checkbox Model (?)

Hopefully this is the right subreddit (I also posted it in learnpython), if this is something too basic or what, but here goes - I'm starting to put together an admin page for a project I've been slowly getting together, and I'm wondering if, in a particular model class, I can have attributes that can be selected at a more-than-one policy (like checkboxes). As it is, all my dropdown menus work, so I'm not sure if this sort of thing (checkbox selections) can only be done in a form on the website itself (rather than as an admin attribute), or if these choices can be controlled from the admin page as well.

Here's the model:

class Details(models.Model):
"""adding details to the ticket"""
ro = models.ForeignKey(RepairOrder, on_delete=models.CASCADE)
tech = models.CharField(max_length=20, choices=TECHS, default='none',
help_text='Technician')
writer = models.CharField(max_length=15, choices=WRITERS, default='none',
help_text='Service Writer')
status = models.CharField(max_length=10, choices=STATUSES, default='unassigned',
help_text='Work Status')
'''work_type = models.MultipleChoiceField(widget=forms.SelectMultiple,
choices=WORK_TYPES)'''
additional_details = models.TextField(help_text='Additional comments/work details here.')
date_added = models.DateTimeField(auto_now_add=True)

Where it says work_type, I was hoping to have an array of choices that will allow multiple pre-described items to be added (instead of having to type in each requested job manually):

WORK_TYPES = (
('oc', 'Oil Change'),
('rot', 'Tire Rotation'),
('mpi', 'Multi-Point Inspection'),
('tac', 'TAC Service'),
('bal', 'Tire Balance'),
('rcl', 'Recall(s)'),
('brk', 'Check Brakes'),
('ali', 'Alignment'),
('mil', 'Check Engine Light'),
('otl', 'Other Warning Light'),
('noi', 'Noise Concern'),
('si', 'State Inspection'),
('pdi', 'Pre-Delivery Inspection'),
('otr', 'Other (please add detail:)'),
)

... and so on.

Is this possible? My looking through stackexchange got me lots of help on the forms pages and such, but nothing about this sort of thing in models. Thanks!

PS., would it be possible also to point me in the direction of the info I need in order to set the time added to my own time zone? What I found seemed to say several different things and I'm not quite equipped to understand all the terminology. Thanks again!

/r/django
https://redd.it/8c3nww

Building an ad system that tracks # of views per day

I am building an ad system which will track the number of impressions an ad will receive every day.

The best way I can think of is building a model called 'AdDate' that is created at the beginning of each date.

AdDate would have 2 fields:

1. `date` - which is just the date
2. `views` - which is the number of views for that date

There seems to be another option, which is to use ArrayField (I am using Postgres) I would have an array of dictionaries, each dictionary have data for each date.

I don't want to screw this up since real money will be involved. Any one can provide some feedback/ideas?



/r/django
https://redd.it/8bxb01

At least painful way to setup Vue?

I guess I sadly hate javascript in general but I guess avoiding can't be the answer for any longer. However I've been quite confused about integrating Vue on the top of django. I've seen some tutorials but I'm wondering if there's an easier and cleaner way to get it all set up.

/r/django
https://redd.it/8c63u0

Mypy 0.590 Released
https://mypy-lang.blogspot.com/2018/04/mypy-0590-released.html

/r/Python
https://redd.it/8c2lwu

EzPyGame: An easier way to use pygame
http://github.com/Mahi/EzPyGame

/r/Python
https://redd.it/8c6d3w

DRF Aggregating related collections

So lets say i have a Box model. The box model works like a "master" model, and have lots of foreign keys, thus having relations to lots of other models.

Now for example i have a related model Cost, and the Box models has a column costs that is a one-to-many relationship to the Cost model.

When i make a basic REST endpoint to get all my Boxes, i get an array of each cost included. I have used to_representation to only get the cost value for each record in the cost model.

This gets kind of tedious however, as i have to reduce the costs to a single number on the client side (might be slow when my dataset grows)

So whats the best way to aggregate the costs on the server so i can return a single number for all the related costs for the Box?

Should this be done in the serializer, or is there a better place to put this logic? Im using DRF's viewsets.ViewSet as a base in my views.

Should i aggregate the total costs in python, or do a SUM on the database level?

[EDIT]

At the moment im just augmenting my serializer data


for value in serializer.data:
# costs is an list of decimals
value['costs'] = sum(value['costs'])


I was wondering if there was a better way.

Thanks!

/r/django
https://redd.it/8bw9gt