What is `1..__truediv__` ? Does Python have a .. (“dot dot”) notation syntax?

I recently came across a syntax I never seen before when I learned python nor in most tutorials, the .. notation, it looks something like this: f = 1..__truediv__ # or 1..__div__ for python 2 print(f(8)) # prints 0.125 I figured it was exactly the same as (except it’s longer, of course): f = lambda … Read more

Django TemplateDoesNotExist?

My local machine is running Python 2.5 and Nginx on Ubuntu 8.10, with Django builded from latest development trunk. For every URL I request, it throws: TemplateDoesNotExist at /appname/path appname/template_name.html Django tried loading these templates, in this order: * Using loader django.template.loaders.filesystem.function: * Using loader django.template.loaders.app_directories.function: TEMPLATE_DIRS (‘/usr/lib/python2.5/site-packages/projectname/templates’,) Is it looking for /usr/lib/python2.5/site-packages/projectname/templates/appname/template_name.html in this … Read more

Safest way to convert float to integer in python?

Python’s math module contain handy functions like floor & ceil. These functions take a floating point number and return the nearest integer below or above it. However these functions return the answer as a floating point number. For example: import math f=math.floor(2.3) Now f returns: 2.0 What is the safest way to get an integer … Read more