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MicroPyramid - Django and Python Web Development Company

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Python Coding Techniques and Programming Practices

Coding techniques and programming practices are one of the features of a professional programmer. While writing code to solve a problem programmer should make simple choices and have to use basic techniques. This is completely depends on the programmers skill and expertise and how wisely he make choices.


Image Cropping in Jquery (with Jcrop)

We are having many image cropping plugins developed in jquery that are being used to crop an image. Jcrop is one of the plugins developed in Jquery.


Setting Up Coveralls for Django Project

Coveraslls will check the code coverage for your test cases. To use coveralls.io your code must be hosted on GitHub or BitBucket.

install coveralls
pip install coveralls


How to Do Page Redirections with Nginx.

Here we learn how to redirect a www to non-www or vice-versa also we see how to redirect pages. We will see differences between 301 and 302 redirection.


Sendgrid Inbound Email Parsing with django

Using the Inbound parse webhook, we can parse the contents, attachments of an incoming email.

Inbound Parse API follows 3 steps:
1. sending an email to the mail id(URL_Name@your specified domain/sub domain.com)
a Here the domain/ sub domain, where the emails will be sent, and the URL_Name, where we will handle the contents, attachments of an incoming email in our app.
b. Here the domain/sub domain should point out the MX record to mx.sendgrid.net.


How to customize the admin actions in list pages of Django admin?

Django by default provides automatic admin interface, that reads metadata from your models to provide a beautiful model interface where trusted users can manage content on your site. With this interface we can perform actions like delete, filter and other. In this blog post we learn to add new actions to the admin dashboard and how to disable built in actions of the admin dashboard.


Handling Custom Error Pages(404, 500) In Django

404 Page not found and 500 Internal server errors generally occur in every website. When these errors occurs, generally for Django application it will load page showing the application settings. So to avoid settings open, we'll keep DEBUG=False in production mode. But keeping DEBUG=False by default the pages will be served by webservers like nginx or apache which won't look good for an end user point of view.


Autocomplete with Django-Haystack and Elasticsearch with single letter querying.

Django's haystack provides autocomplete functionality. To do autocomplete effectively, the search backend(elasticsearch in this case) uses n-grams (essentially a small window passed over the string). Because this alters the way your data needs to be stored. We had two choices: NgramField and EdgeNgramField used as n-grams in search backend. The major drawback of the n-grams is that they take minimum of 3 letters in the search query.


Get tweets with Javascript

Due to change in twitter API, its been hard to get tweets from twitter to your site using javascript. We got new API version 1.1 and the old version 1 is not working any more, so we have to live with what ever 1.1 offers. This version of API supports widgets to keep in our sites, but thats not enough if we want to customize tweets using javascript to fit our sites look and functionality. We want json of the tweets, then we can do what ever we want with those.


How to create Periodic Tasks in Celery?

Periodic Task is a scheduling task which will run at regular intervals of time. Celery is a powerful, production-ready asynchronous job queue, which allows you to run time-consuming Python functions in the background.


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