I would like to know which versions of django can I use with google cloud sql. I am currently trying 1.8 but I guess it is not supported.
Is there any documentation on supported version?
Thank you
So, after contacting google cloud support to be sure about the possibilities, I will answer my question:
You can use any version of Django in appengine, you can install it to a lib module and then add the file appengine_config.py with the lines:
from google.appengine.ext import vendor
vendor.add('lib')
If you want to use the django mysql backend you can do so and you can use Google Cloud SQL first OR second generation. I am currently using second generation. There is a free trial and good documentation > https://cloud.google.com/appengine/docs/python/cloud-sql/django
Related
I am using the Python3, Django and database as Postgresql, and I wanted to use the Thingsboard dashboard in my web application. can anyone pls guide me how can I use this
ThingsBoard has APIs which you can use. You may also customise it based on your requirements.
Go to THINGSBOARD_URL/swagger-ui.html get the list of all available REST APIs and use it as per your requirements. http://localhost:8080/swagger-ui.html
I have a linear regression model build using spark mlib. Now i want to export the model and use the model via a web service.
I was looking into PMML was not able to find a proper source as how can I use it. Do I need to install any specific PMML library or how can it be done.
The same model i tried exporting as a pickle file using joblib and deployed it as a web service via flask. I want to do something similar for the model developed in Spark mlib.
Can anyone please help me out or point me to correct source?
For a simple REST web service using PMML you could have a look at https://github.com/openscoring/openscoring. It uses JAVA though. For Python+Flask I have no idea but PMML is nothing more than a XML file which needs to be evaluated. So you could try to write your own Python logic to do it. I've also found this https://github.com/maxkferg/pmml-scoring-engine but it doesn't have much stars.
It is noted though that PMML is quite limited in its usage. Not all models are supported e.g. ALS. Another approach is to deploy a PySpark application via its binaries. I blogged about this here. We deployed it using Cloud Foundry but you can use the buildpack to deploy it on Heroku as well if you need a public endpoint. Hope this helps.
I want to create a web app using Django 1.5 or 1.6 using appEngine. I have read about as I have to do it and I have read about Django-nonrel which is very usefull to avoid the issues related with non-relational Database. Unfortunately I have read about the origininal creators project and they have left the project:
GoodBye
However I have seen new avaiables versions of Django AppEngine wich allow to use the 1.4 and 1.5 versions of Django
https://groups.google.com/forum/#!topic/django-non-relational/I06693ZPeME
After I have read every text I am a mess, do anyone redomended me use last version of django non-rel? can I use other framework? don't I use the last verion of Django?
Thank you.
I have developed a fairly complex web app using "normal" Django, not the non-rel flavour. For database storage I use Google Cloud SQL which is basically MySQL in the cloud. It works pretty good. There are some points to consider:
Google Cloud SQL has no "free plan", so it will incur a cost on your project.
Normal Django for GAE is currently at version 1.4 and lags a bit behind development which is if memory serves me right at 1.6. There is a version 1.5 of Django that comes with the GAE SDK but I did not get that work (I did not put any particular effort in it, just changed the Django version in my app.yaml file and it crashed).
As for the first bullet, there's now also a comparable product available from Amazon. I have not yet looked into it (I believe they do offer a free plan which might be interesting to try out), nor compared prices but that might be an alternative should Google Cloud SQL be too expensive. My yearly cost for Google Cloud SQL are between £150 and £200 which is not too bad.
My reason for choosing normal Django over non-rel was basically twofold:
The non-rel project appears abandoned.
The non-rel product is "crippled" in functionality according to some of the docs I read about it and you will not be able to use all of the pre-baked goodies of Django.
I have been working on this project for 7 months now and I find Django on GAE with Google Cloud SQL very stable and productive environments. FWIW, I use PyCharm which has a one click deployment feature which makes deploying my product an absolute breeze. I've been working on IT projects with various technologies for quite some time and the combination of PyCharm, Python, Django, GAE and Google Cloud SQL would be at the top of my list of productive environments.
Of course there are other Python frameworks to consider, like Flask which allow more of a best-of-breed approach but I have no experience with them.
Hope this helps.
I'm using django-nonrel 1.4, though I haven't updated to the latest build yet. It's running smoothly for me.
You do need to recognize that if you use django-nonrel, you have to live by the rules of the GAE HRD, especially the eventually consistent results, and the limited query capabilities.
Django-nonrel is definitely not abandoned! I am using the 1.6 version with much success at Docket Alarm and it is still being actively maintained.
Here are the up-to-date links to the project:
Docs
GitHub
Discussion group
I have developed one example project in django1.4 & python 2.7, I want to deploy it on google app engine,
but how to configure my project as per App Engine we didn't get.
We have a site running on google app engine, but it is including with all html,js.
How do we configure a database on google app engine to deploy our django project?
Possibly the best option is to use Django Non-Rel. It's the only way (that I know of) to use the Django ORM (the django database interface) on Google App Engine without using Google's costly cloud SQL service. To do this, you'll need to use a customized version of Django and import several more libraries. It's a small project to get it up and running, but it's worth the effort. More information can be found on this website:
http://django-nonrel.org/
Note, that even though django-nonrel allows you to use the Django database interface, it will not allow you to use certain SQL features, such as joins. If you need joins, then your best option would be to use Google App Engine + Google Cloud SQL. Documentation for that is here.
Regarding the comments:
Yes, it can run on windows, I run it on Windows.
Also, the site allbuttonspressed.com is old and out of date, use the
one above for information.
How much of a pain is it to run a Django App on App Engine? Also, does the Datastore work as-is with Django?
I spent some time trying to answer the same question... it seems to me that the most difficult thing to transfer to GAE are django's models... in the sense that they require various modifications and rethinking, mainly because GAE's backend is not a standard relational DB, but google's BigTable. I found a nice intro to this here:
http://www.youtube.com/watch?v=rRCx9e38yr8
Anyways, it's worth downloading one of those 'patches' and have a go with it!
For me the best solution is the 'app-engine-patch'. I downloaded the sample project and it worked straightaway! (Mind that you need to have GAE's SDK installed separately) A killer-feature for me is the fact that the django-admin and many other classic django functionalities have been ported too!!!
http://code.google.com/p/app-engine-patch/
The documentation is still quite minimal in my opinion, but it's good enough to get you going. It'll help you to skim though the official GAE docs though!
Just Yesterday (depending on your time zone), Google released a new SDK for Python on Appengine that supports django 1.0 out of the box.
You need to use django-nonrel (source).
You will still find loads of issues:
Many2Many relations not supported
Fake joins increase number of queries
App Engine doesn't allow any python lib with socket or C dependencies (sentry, lxml...)
You can try to get early access to CloudSQL.
Otherwise you are not constraint to use App Engine, you can think about using:
Heroku
Gondor
Cheaper and more control with support requirement files like pip.
31.01.2012, Google released App Engine 1.6.2 that supports Django out-of-the box.
App Engine includes version 0.96 of Django out-of-the-box, but it is quite crippled.
App Engine Helper and app-engine-patch supposedly fix this problem to some degree, but I haven't tried either myself.
http://code.google.com/appengine/articles/appengine_helper_for_django.html
http://code.google.com/appengine/articles/app-engine-patch.html
The amount of pain depends on how much existing code you want to reuse. Unfortunately because of the Datastore does not support SQL, you often cannot just take any django-pluggable app and use it on your GAE project.
App-engine-patch http://code.google.com/p/app-engine-patch/ looks to be ahead of the other django helpers in bringing the standard applications (Sites, ContentTypes, Flatpages) over to GAE. I have used app-engine-patch on several gae projects, and once you understand how to port a django-sql model to a django-gae model and converting sql to datastore queries things can be done very quickly - but there is always a learning curve.
appengine-helper tries to bridge the Datastore gap by providing a model so you don't have to change your model superclasses, but I've found that you end up having to change ManyToMany relationships and any sql anyway, so the advantage ends up being minimal. ae-patch has a roadmap to try to provide an ae-datastore backend, but it probably won't happen for a while.
Google has now launched their Cloud SQL storage. That is actually MySQL 5.5 in the cloud. IMO that's a very nice way to migrate your Django app into the cloud. They have a free trial up to June 1, 2013.
If you need some tips how to set up your Django project for Appengine and Cloud SQL I've written a tutorial for that.