Category: Python

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Nov
4

Certificate Authority Management System for Direct

The management software that runs the certificate authority (CA) at DirectCA.org, or more precisely console.directca.org, is now open source. “vcert” is a web-based application written. . .

Aug
19

How to Serve Public Certificates with BIND for the Direct Project

Serving public certificates via DNS is quite an obscure endeavor. This is made quite evident by the total lack of documentation on how to serve. . .

May
5

ce – Certificate Examiner

This is a quick command-line utility for displaying information contained in an SSL certificates and CRLs. It is faster and easier to remember than the. . .

Apr
14

A Command-line Utility & Library to Fetch Revoked Serial Numbers from a Certificate Revocation List (CRL)

This functionality is not available in openssl’s comand line utility, so I cooked this up to do the job. The library function returns a Python. . .

Oct
17

A Collection of Handy Django Authentication Backends

This blog entry describes three Django Authentication backends you can use instead of the default “django.contrib.auth.backends.ModelBackend”. Below is a brief description of each. EmailBackend –. . .

Sep
18

Calculating BMI in Python

If you ever need to calculate Body Mass Index (BMI) in Python, here’s how… -acv

Aug
25

Get the Latest Object or a 404 in Django : get_latest_object_or_404

The get_object_or_404 is a handy Django shortcut. It keeps my views shorter. In my case however, I had the need to get the latest object.. . .

Jul
28

Fun with Framingham

Hot off the presses is an open source implementation of the Framingham 10 Year Heart Attack Risk Calculator. This software package consists of a command-line. . .

Oct
14

Fetching Django’s Model’s ‘verbose_name’ and/or Form’s ‘label’ Attribute

Problem: You want to display some information in a database record in Django, but you also want to display the field’s verbbose name. ┬áIn other. . .

Mar
29

How to Create a Geospatial Query with maxDistance in MongoDB using Python

My company (Videntity) has been providing support to the Earth Institute (Columbia University). One of the tasks is to build a geospatial web service for. . .

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