This is a good post showing how “perrygeo” uses Cython to speed up a pure Python function. The comments also discuss alternatives and options: Using psyco instead of Cython Using optimization flags for gcc Using xxx instead of math.xxx
How long does [insert code snippet] take in Python? Find out with the timeit module, in Python since 2.3. Below I time how long it takes to make a list with a 1000 zeros, [0,0,0,…], using different Python code snippets.…
pyproj is a Python interface to the PROJ.4 () functions. It allows you to transform coordinates between coordinate systems. Install pyproj using pip Assuming you’re using pip to install Python packages: $ pip install pyproj
Note: Since writing this post, I’ve learned about the fileinput module, which turns most of the following into a oneliner: import fileinput for line in fileinput.input(): process(line)
Online documentation for GDAL/OGR Python is sparse. Here I show some recommended ways of learning more about GDAL/OGR in Python. Using Python interpreter You can learn about GDAL and OGR from inside the Python interpreter. Start python interpreter: $ python…
GDAL is not very well documented, and a complete Python API documentation site is not something I’ve found. So here are the best tutorials I’ve found so far for GDAL + Python. GDAL Python samples on osgeo.org
Nagios looks at 1) return codes and 2) output to stdout. This is the hello world of Nagios plugins, written in Python: check_helloworld.py: #!/usr/bin/env python # optparse is Python 2.3 – 2.6, deprecated in 2.7 # For 2.7+ use …
These instructions show how to install pip and virtualevn on a Mac running Snow Leopard 10.6.8 and using Python 2.7. I used this to install Django 1.3.1 (installation instructions included). Installing pip (skip if you have pip installed) First make…
Google Fusion Tables is a service for storing tabular data online. It has an API that allows you to make an SQL-like request for data from an online table, like the following: sql=SELECT * FROM 1906375 (clicking the link will…
Introduction to CORS CORS (Cross Origin Resource Sharing) is a mechanism specifies by W3C (draft), for allowing browsers to make cross origin requests for resources on other domains under certain conditions. It’s related to JSONP because it solves a similar…