ation=60)
plt.ylabel('No. of occurance')
plt.xlabel('Locations')
plt.title('Occurance of Locations')
#plt.savefig('file.png')(Commented out for testing)
#End of Graph positions and Names
plt.show()



https://i.redd.it/n311chii2u111.png

/r/Python
https://redd.it/8oat6s

DRF+Django

Hi there,

So we're fairly new to Django and wish to make a backend using it for a RN app. The DB needs to be Postgres. Therefore my question was how does DRF/Django sit in this? Does Django get installed/used for the migrations as a prerequisite for DRF? As the client will then be querying the DB through DRF as the API.

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

Moving a locally hosted Flask App to another computer

I have a flask app that is saved on my computer and if I want to save it in a zip archive, then move it to another computer, using USB, can I still be able to run it standalone, or does the other PC need Python installed?

I'm using MySQL database and a virtual environment so I know I need some kind of a local server (like WAMP) to run it, but I'm not so sure about Python and it's dependencies. Are they standalone in the Virtual Environment or are they still dependend on the root Python files?

I'm asking this because I need to show the project in my school but don't want to host it on the web just yet.

/r/flask
https://redd.it/8obuj1

i regexed all the commands from the very book i'm learning, for using as a personal cheat sheet [i am learning please dont judge :) ]

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

Best (fastest) algorithm to do this task ?

I'm creating a spell checker \(not for English\). For that I need to generate permutation for each word.

Lets assume the word is **jumbo** . And I have a dictionary with permutations stored.

dict = {
'u' : [ 'e','o' ],
'm' : [ 'n' ],
'o' : ['u']
}

From this I need to create all instances of the word with replacing the letter which is the key of the dictionary with the words of the values of each key. As an example, for **jumbo** according to *dict* dictionary there can be permutations like **jembo, jombo, janbo, jambu, jenbo, jonbo, jembu, jombu, janbu, jenbu, jonbu** . So, how can I generate all these combinations and generate all these permutation words ? I'm pretty sure I can do this with some nested loops. But what is the most efficient way ?

/r/Python
https://redd.it/8od6yd

Django & JSONField & SqlLite - '

I have no idea where to ask this so I am starting here.

I am trying to write a django application \(my first\). In so doing, I am using a SQLite database. I have some data stored in JSON into a JSON Field:

`class Data(models.Model):`

`data = JSONField()`

the data stored in the data base in the data field is text like this:

`[`

`{`

`"datetime": "2018-05-31T00:00:00.000Z",`

`"value": 90`

`}`

`]`

in the HTML, I have at the end of the document:

`<script>`

`{% for data in datas %}`

`var x{{` [`data.id`](https://board.id) `}} = {{` [`data.data`](https://board.data) `}};`

`{% endfor %}`

`</script>`

but instead of creating var x1 with some json in it, I get:

var x1 = \[{AMPERSAND#39datetimeAMPERSAND#39: AMPERSAND#392018\-05\-31T00:00:00.000ZAMPERSAND#39, AMPERSAND#39valueAMPERSAND#39: 90}\]

Where you replace AMPERSAND with & because &# 39 doesn't show up right here.

All of the original double quotes in the database are replaced with &#39, which actually the ascii code for apostraphe. Do you guys have any tips for how I can have json in the database and get it out through django?

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

Concurrency issue? Standalone python script sharing settings.py and ORM with django server has unreliable view of DB objects?

I'm having a strange problem that is difficult to reproduce (everything worked 2 days ago but some time between then and now no longer does--with no changes in the interim!)

I have a django server program which we are running via gunicorn with multiple worker subprocesses and a separate small REST webservice which shares the settings.py of the server program and acts on the same DB objects. The code for this server program is roughly as follows:

# my app's models.py
class TestConfig(models.Model):
## various attributes
class Test(models.Model):
## some attributes
def startTest(self):
return TestExecution.objects.create(test=self)
class TestExecution(models.Model):
test = models.ForeignKey(
Test,
on_delete=models.CASCADE
)
config = models.ForeignKey(
TestConfig,
on_delete=models.CASCADE,
null=True
)

# excerpt from a post() method in my app's views.py
test = Test.objects.get(test_id)
if config_form.is_valid():
config = config_form.save()
config_id = config.id
test_exe = test.startTest()
test_exe.config = config
test_exe.save()

webservice_response = requests.get(
'http://{}:{}/rest/add_to_queue/{}'.format(
webservice_ip, webservice_port, test_exe.id))

The other program (small REST webservice) sharing the same settings.py as the django server program looks as follows:

os.environ['DJANGO_SETTINGS_MODULE'] = 'myapp.settings'
import django
django.setup()

# the REST endpoint referenced from the django server program
@app.route('/rest/add_to_queue/<test_exe_object_id>/')
@app.route('/rest/add_to_queue/<test_exe_object_id>')
def add_to_queue(test_exe_object_id):
from myapp.models import TestExecution
try:
exe_object = TestExecution.objects.get(pk=int(test_exe_object_id))

# for completeness the database section of my settings.py:
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.mysql',
'NAME': 'test_db',
'USER': 'root',
'PASSWORD': 'root',
'HOST': 'localhost',
'PORT': '3306',
'OPTIONS': {
'init_command': "SET sql_mode='STRICT_TRANS_TABLES'",
},
}
}

As I said, this was working fine a few days ago, then when I tried again today I was getting a DoesNotExist in the second program when trying to "get()" the TestExecution object using its 'id'.
Does anyone have experience with this or a similar issue?

/r/django
https://redd.it/8o9b8c

Django 1.11 tutorial
https://overiq.com/django/1.11/intro-to-django/

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

Question about AWS and hosting a subdomain running flask next to a wordpress site on EC2

Is it really just as easy as following \[this\]\([https://www.brianshim.com/webtricks/host\-multiple\-sites\-amazon\-ec2/](https://www.brianshim.com/webtricks/host-multiple-sites-amazon-ec2/)\) tutorial and then building the app in the documentRoot directory dictated in the httpd.conf?

Any insight would be apppriciated.

I just want to be able to put \(possibly a few\) flask apps next to my wordpress blog. For example wordpress blog would be at spacebucketfu.com and the flask app would be app.spacebucketfu.com

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

How can I read a client's IP address in a Jupyter Notebook?

Hello,

Is it possible to read an IP address in a Notebook?

I have multiple people connecting to a Notebook and I need to store their IP addresses.

I can see them in the Jupyter log file, but is there anyway I can use Python code to get the IP address of whoever is running the Notebook?

Each client connection needs to have a folder created with a name based on his or her IP address to store Excel processing output.

/r/IPython
https://redd.it/8oeros

The Problem With Your Dockerized Django Development Workflow
https://vsupalov.com/problem-django-development-workflow/

/r/django
https://redd.it/8og9fe

Dynaconf 1.0.x released - Layered configuration system for python with flask and django support
http://brunorocha.org/python/dynaconf-1-0-x-released-layered-configuration-system-for-python-with-flask-and-django-support.html

/r/flask
https://redd.it/8nkt33

Anime girl can now access your webcam to look at you in the eye (my python project)
https://youtu.be/rxHIsFZzRO8

/r/Python
https://redd.it/8oh9s2

IPython Parallel 6.2 Released
https://ipyparallel.readthedocs.io/en/latest/changelog.html

/r/IPython
https://redd.it/8ohuue

Automating the Creation of the Demonstration GIF for README

So I was creating a GIF for the GitHub README of a terminal project I am working on and, since I didn't want to have to do the demo all over again if I wanted to make a small change, I wrote a little program that automates the demonstration. What it does basically is read the keys I want to type from a text file that also has certain "flags" embedded in it that trigger events like changing the typing delay speed, sleep for N seconds, send Enter/Tab/Escape/Ctrl+U to the terminal, etc. This way the whole transcript for the demo is stored in a text file. If I need to change something in the future, I can just edit the text file, rerun `autodemo`, and then sit back and wait. Here's a link to the script: https://github.com/bbugyi200/scripts/blob/master/bin/main/autodemo

As an example, take this transcript file: https://github.com/bbugyi200/localalias/blob/master/docs/img/demo.txt

I used that file (with `autodemo`) to produce the GIF that is in the README of this project: https://github.com/bbugyi200/localalias

Anyway, I wanted to know if anyone has heard of something like this that I should be using instead? Or if this little script actually has any value? I fully expect the former and would rather use a more mature solution if available. Thanks in advance!

/r/Python
https://redd.it/8oj2mw

How to manage shared Python packages in a microservice architecture?

I'm in the process of decoupling and splitting our monolith app into a few different services. There are a few modules we'd like to turn into python packages in order to reuse across the board in the new services and I'm not sure what's the “standard” method to distribute and control the dependencies. How is everyone managing many private Python packages in a microservice architecture?


Is a private Pypi server required or can we use github directly? What about pip on the services consuming those packages? how is version management done? \(specifically bumping versions up...\)


Would love any kind of input.
Thanks!


/r/Python
https://redd.it/8ol9jg

Beginner/I know the basics - Where to go next?

Hi, I took a python class this past semester and I have a decent handle on everything in Zelle's "Python Programming" (which goes through everything from functions to simulation/data collections/OOD) but so far I've just been solving random assigned problems, and I dont really know where to go next with Python. I've been doing a little bit with tkinter but I'm not sure how useful that even is. I feel like I learned a lot but I dont know where to go next, so if anyone has any advice I'd appreciate any help. My only idea so far is to look into using python with ArcGIS.

/r/Python
https://redd.it/8olzr7

Structuring doubt

So, I always think thrice before laying out a new project structure, and I'm having hard time figuring this out. Let's say we have a deck of cards. But each card may have an unique effect. And you can have any number of that cards in the deck. Now, would each card be a subclass of a superclass "Card" implementing his methods? In that case, for multiple cards, should it have an instance for each card of that type in deck, or one instance used multiple times (with a list?)? ... Or should all cards be instance of a class Card, passing a "callback" function for their effects? Something better?

Thanks in advance for whoever can point me to the right direction!

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

Automating the boring stuff in Django using the check framework, ast and inspect
https://medium.com/@hakibenita/automating-the-boring-stuff-in-django-using-the-check-framework-3495fb550a6a

/r/IPython
https://redd.it/8ooj0c

About to go-live. I want to thank you.

Over the past 4 months, I went from knowing 0 about django to being able to build a service that will hopefully one day will produce some income for my family. It's been a rough ride at times, especially during those 70 \- 80 hour weeks \(still have a full time job\), but it's been worth it. I feel optimistic about the future.

I just want to thank everyone here. Remember, when you're answering a question, your answers and feedback make a real difference in the real world. Give yourselves a pat on the back. I wouldn't have been able to do this without you. With my new knowledge, I'm trying to pay it forward by commenting on SO as well as on here when I'm able to answer a question \(although most are still above my level of knowledge\).

Thanks again folks. You mean the world to me.

/r/django
https://redd.it/8onmo0