Python for Good

I wanted to let everyone know about Python for Good, a Python event that is happening in the Portland, Oregon area. Put simply, we get a bunch of pythonistas (along with anyone else interested in doing good) and we gather for a long weekend (Thurs - Sun) of using our awesome skills to build apps for social and civic good organizations. Our theme for this year is children and families and some of the places we'll be helping this year include a homeless shelter, numerous organizations that help children, and many more amazing and worthwhile organizations.

The event is all inclusive, meaning that we stay in university dorms, all the food is provided and we have pretty great internet too. Our days are filled with hacking and our evenings are full of excellent camaraderie -- playing boardgames, video games, karaoke, werewolf, cards and lots of excellent socializing!

We are excited to announce that we're going to be once again holding the event at Reed College from July 26th to the 29th.

You can find more information about this years' event here: http://pythonforgood.org/attend Here is a list of the most frequently asked questions here: http://pythonforgood.io/faq

I'd be delighted to answer any questions.

Happiness,

Sean (and the Python for Good team)

/r/Python
https://redd.it/8ciq36

Solid examples using *args and **kwargs

I have seen these in various snippets of code. I am looking for some really good use case examples.

/r/Python
https://redd.it/8ci7qw

Flask-Restful API Help? POST method is not allowed

Hi,

I created a Flask-Restful API but when creating a post method like so

class Create(Resource):
def post(self):
etc etc

api.add_resource(Create,api/Create)

It errors out saying the method is not allowed.. but it works when I have something like this

@app.route("/signup/<username>,<password>", methods = ['GET', 'POST'])
def signup(username, password):

Can anybody assist? How do I allow the POST method using the first method?


/r/flask
https://redd.it/8chql1

Run SQL statements on XML documents
https://github.com/kamac/AskXML

/r/Python
https://redd.it/8cku5i

Single Page Apps with Flask and Angular 4|5 Tutorial Series
https://www.techiediaries.com/flask-angular-tutorial/

/r/flask
https://redd.it/8cm0hi

A Continuous Integration/Deployment (CI/CD) system for Django, using GitHub, Codeship, and AWS
https://diagramy.com/diagram/18af2ef2-736e-4fd2-afcb-b4ee02f1da73/

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

Requesting User details from JWT in Django OAuth Toolkit
https://theleakycauldronblog.com/blog/requesting-user-details-from-jwt-in-django-oauth-toolkit/

/r/djangolearning
https://redd.it/8cl6ei

PyPi is currently experiencing downtime due to an upgrade gone wrong
https://status.python.org

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

Ethereum Smart Contracts in Python: a comprehensive(ish) guide
https://medium.com/m/global-identity?redirectUrl=https://hackernoon.com/ethereum-smart-contracts-in-python-a-comprehensive-ish-guide-771b03990988

/r/Python
https://redd.it/8cmmx5

Taskpacker - a Python library for schedule optimization
https://github.com/Edinburgh-Genome-Foundry/Taskpacker

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

New stable release of PySolFC — an open-source collection of over 1,000 card Solitaire/Mahjong games

[PySolFC](http://pysolfc.sourceforge.net/) is a free and open-source collection of over 1,000 card Solitaire and Mahjong games with many features and solver/analysis tools. It is almost [20 years old](http://solitaire.vegard2.net/pysol.html), and the current development efforts are concentrated on [the GitHub repository](https://github.com/shlomif/PySolFC).

The PySolFC developers are happy to announce a new stable release, 2.2.0, of PySolFC (the last one was in distant 2009!). Among the new features are:

* Compatibility with both Python 3.x and Python 2.7.
* Support for the Kivy user-interface toolkit, for Android devices and other systems.
* A Microsoft Windows binary installer.
* Support for dealing all [Freecell Pro deals](http://fc-solve.shlomifish.org/faq.html#what_are_ms_deals) by specifying "ms100000", or similar, as the seed.
* Support for the [Black Hole and All in a Row solver](http://www.shlomifish.org/open-source/projects/black-hole-solitaire-solver/) was added.
* Test suite and [CI](https://en.wikipedia.org/wiki/Continuous_integration) have been added to the repository.
* The code now passes [flake8](https://pypi.python.org/pypi/flake8) validation.

You can find [download links](https://sourceforge.net/projects/pysolfc/files/PySolFC/) for current Windows, source code, and Android versions.
Packages for Linux/BSD/etc. distributions and operating systems should be made
available soon from the downstream packagers.

Future plans:

* Vector-based fully scalable cards and graphics
* Large-scale cardsets for HD displays
* An online, WWW-based version

If you want to help, we need:

* Programmers
* Graphic designers who would help with improving the app’s look
* People to help with documentation and translations
* People who would spread the word
* Testers / QA people
* Monetary donations - see [this page](http://www.shlomifish.org/meta/how-to-help/)

We will gladly answer any questions!

Remember that apart from this thread you can also contact us using the [FOSS Card Games group](https://groups.google.com/forum/#!forum/foss-card-games), and using the ##pysol chat room on [Freenode](http://freenode.net/) (note the double octothorpe/hash-sign/pound-sign).

A final note is that while we are using GitHub for version control, and accept
pull requests and issue reports, we are still hosting the main site and the
downloads on SourceForge.net. See [the explanation](https://www.reddit.com/r/Python/comments/8237i3/help_is_needed_in_preparing_a_windows_binary/dv84xxu/)
for details.


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

How can I dynamically change the file extension in a relative link from IPYNB to HTML when downloading a notebook as HTML?

I currently have a line inside a notebook (File1.ipynb):

[File 2](File2.ipynb)

When downloading both the files as HTML, this link is hard-coded, and hence when I click on the link in the generated *File1.html*, it can't find the file, because it refers to ipynb and not to html.

I could try:

* using sed to replace all occurrences of ipynb with html
* hard-coding html inside the notebook, which will prevent me from using the links when I'm editing the notebook.
But, is there an alternative?

Is there, perhaps, a way to specify two links inside the notebook such that if the browser fails to find the first one, it'll try the second? I tried searching for such a method. I couldn't find it.

/r/IPython
https://redd.it/8ct3ia

jQuery/AJAX get Request format?

I've got a post request working pretty well

$.post('/discount', {
time_left: distance / 60000,
ban_id: id
})

So say for example, with my get request, all I want to do is actually grab some data from Python Flask, namely in my /discount route I have a variable named d_code which is my discount code. All I simply want to do is grab this variable and in the function of the GET request, I want to change the innerHTML of a paragraph just to show the discount code.

Fairly simple, but I don't really understand how to do the get request correctly.


Bonus: Do you think a flask app with gunicorn can handle 10k-100k users a day? Hosted on Heroku.


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

[R] Multimodal Unsupervised Image-to-Image Translation

/r/MachineLearning
https://redd.it/8cram8

Postmortem of new PyPI rollout outage
https://status.python.org/incidents/1y1f44q6srh2

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

Sending Email For Errors In Django - Stack Expressions
https://www.stackexpressions.com/sending-email-for-errors-django/

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

[N] TensorFlow 1.8.0 Release Candidate Announced
https://github.com/tensorflow/tensorflow/releases/tag/v1.8.0-rc0

/r/MachineLearning
https://redd.it/8cq4gj

[AF] Delete table in Flask, using flask-sqlalchemy?

So, I want to delete a table in my database, this being a table called Comments as I know it will only make for a terribly scaled flask app. do I just delete the code for the model in models.py and make a migration?

Here is my models.py if anyone is interested:

https://github.com/ModoUnreal/dopenet/blob/master/app/models.py

/r/flask
https://redd.it/8conl9

What's the difference between Statsmodel's Poisson and GLM with Poisson family?

For Statsmodels (imported as sm), I do not know what the difference is between

sm.Poisson(Y,X)

vs

sm.GLM(Y,X,family=sm.families.Poisson())

Also, another oddity is that with the former I have to use fit_regularize but with the latter, if I try to fit_regularize, I will get None when I try to get a summary.


/r/pystats
https://redd.it/8crlvg

Updating fields in another model with custom save

Hello,

I have a few models with custom save definitions. I am looking to update a field in one model when I save another model based on a date comparison between the two. Unfortunately, I can't get this to work. I was wondering if someone could check out my code and see what I'm doing wrong.

models.py

class Person(models.Model):
first_name = models.CharField(max_length=250)
relation_name = models.CharField(max_length=250, blank=True)
last_name = models.CharField(max_length=250)
village = models.ForeignKey(Village)
earliest_case = models.ForeignKey('Case', null=True, blank=True, related_name='person_to_earliest_case+')
latest_case = models.ForeignKey('Case', null=True, blank=True, related_name='person_to_latest_case+')

def save(self, *args, **kwargs):
try:
earliest_litigation = Case.objects.filter(litigants__person=self).order_by('session__date')[0]
except:
earliest_litigation = None
try:
earliest_pledge = Case.objects.filter(litigants__pledges__giver=self).order_by('receiver__case__session__date')[0]
except:
earliest_pledge = None

if earliest_litigation and earliest_pledge:
if earliest_litigation.session.date > earliest_pledge.session.date:
self.earliest_case = earliest_litigation
elif earliest_pledge.receiver.session.date > earliest_litigation.session.date:
self.earliest_case = earliest_pledge
elif earliest_litigation:
self.earliest_case = earliest_litigation
elif earliest_pledge:
self.earliest_case = earliest_pledge
else:
self.earliest_case = None

try:
latest_litigation = Case.objects.filter(litigants__person=self).order_by('-session__date')[0]
except:
latest_litigation = None
try:
latest_pledge = Case.objects.filter(litigants__pledges__giver=self).order_by('-receiver__case__session__date')[0]
except:
latest_pledge = None

if latest_litigation and latest_pledge:
if latest_litigation.session.date > latest_pledge.session.date:
self.latest_case = latest_litigation
elif latest_pledge.session.date > latest_litigation.session.date:
self.latest_case = latest_pledge
elif latest_litigation:
self.latest_case = latest_litigation
elif latest_pledge:
self.latest_case = latest_pledge
else:
self.latest_case = None
super(Person, self).save(*args, **kwargs)



class Litigant(models.Model):

person = models.ForeignKey(Person, on_delete=models.CASCADE, related_name='cases')
case = models.ForeignKey(Case, on_delete=models.CASCADE, related_name='litigants')
role = models.ForeignKey(Role, related_name='litigant_role')

def save(self, *args, **kwargs):
super(Litigant, self).save(*args, **kwargs)
person = Person.objects.get(pk=self.person)
earliest_litigation = person.earliest_case
latest_litigation = person.latest_case
if earliest_litigation:
if self.case.session.date < earliest_litigation.session.date:
person.earliest_case = self.case
person.save(update_fields=['earliest_case'])
if latest_litigation:
if self.case.session.date > latest_litigation.session.date:
person.latest_case = self.case
person.save(update_fields=['latest_case'])
else:
person.earliest_case = self.case
person.latest_case = self.case
person.save(update_fields=['earliest_case', 'latest_case'])


When I save a `Person` model instance it updates the `earliest` and `last` case references just fine. However, when I add them as a `Litigant` it doesn't up

date their `earliest` or `last` case references as I was hoping the custom save method in `Litigant` model would do.

Am I missing something obvious here?

Thanks in advance for any help!

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