Imagine you have the following code def do_something(): users = User.objects.filter(dob__gte='1980-01-01') for user in users: # do something to user If you were writing unit test against do_something(), you would need to do some complex mocking on User.objects.filter() to return some mock up data. But this can be easily prevented by refactoring into a separate… Read More »
import os, sys, pathlib # if script is in on 1 level deep # sys.path.append(str(pathlib.Path(__file__).parents[1].absolute())) sys.path.append(str(pathlib.Path(__file__).absolute())) os.environ.setdefault("DJANGO_SETTINGS_MODULE", "main.settings") import django django.setup() # import your django models # do your django work
Consider the following code import logging logging.info('trying to log something') Executing above: It won’t log anything to console, because it default to level warning It won’t log anything to console, because no stream has been set import logging logging.basicConfig(level=logging.INFO) logging.info('trying to log something') logging.basicConfig(level=logging.DEBUG) logging.debug('trying to log something debug') Executing above: Running basicConfig(…) default adds… Read More »
I have been writing python OO for a while and every time when I create a method, I always ask myself, should this be instance method or staticmethod (or classmethod)? As you might already aware that the difference between instance method and static method is that static method doesn’t have access to the instance, same… Read More »
“In our industry, every technology generates what I call a “galaxy.” These galaxies feature stars but also black holes; meteoric changes that fade in the night, many planets, only a tiny fraction of which harbour some kind of life, and lots of cosmic dust and dark matter. Examples of galaxies are, for example, .NET, Cocoa, Node.js,… Read More »
“I need to display data on a page, not perform Sub Zero’s original MK fatality.” https://hackernoon.com/how-it-feels-to-learn-javascript-in-2016-d3a717dd577f#.67qnsecr5
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Here is a quick recipe for Django templates, let’s say you are building a Django web which has many list views, and which has pagination, it’s wise to abstract the pagination template out to be reusable by all list view templates. My preference is to keep all reusable templates in a partials folder, and place the… Read More »
I have just created this python library so that you can query the remote api just like the Django queryset. It is particularly usefully when used in Django ListView with pagination. https://github.com/variable/django-rest-framework-queryset
Seems like there are not many code sample there, and the requests documentation was giving the wrong hint to use files={‘file’: open(‘image.jpg’)} which you will end up getting 415 response code. I think I will just share my working sample code here to save someone’s time import requests # local file with open(‘image.jpg’, ‘rb’) as… Read More »