|
“Which programming language you learn and use does not matter. Do not get sucked into the religion surrounding programing languages as that will only blind you to their true purpose of being your tool for doing interesting things. Programming as an intellectual activity is the only art form that allows you to create interactive art. You can create projects that other people can play with, and you can talk to them indirectly. No other art form is quite this interactive. Movies flow to the audience in one direction. Paintings do not move. Code goes both ways.” “… How does it work? First, we put all numbers from 2 to 49 into a list called “nums”. Then we have a “for” loop that iterates over all possible divisors, i.e. the value of “i” goes from 2 to 7. Naturally, all numbers that are multiples of those divisors cannot be prime numbers, so we use a filter function to remove them from the list. (This algorithm is called “the sieve of Eratosthenes”.)” “Python plays an important role in Dropbox’s success: the Dropbox client, which runs on Windows, Mac and Linux (!), is written in Python. This is key to the portability: everything except the UI is cross-platform. (The UI uses a Python-ObjC bridge on Mac, and wxPython on the other platforms.) Performance has never been a problem — understanding that a small number of critical pieces were written in C, including a custom memory allocator used for a certain type of objects whose pattern of allocation involves allocating 100,000s of them and then releasing all but a few. Before you jump in to open up the Dropbox distro and learn all about how it works, beware that the source code is not included and the bytecode is obfuscated. Drew’s no fool. And he laughs at the poor competitors who are using Java.” 
eigenpaws 
“This code finds the subsets of points describing the convex hull around a set of 2-D data points. The code optionally uses pylab to animate its progress.” (via SciPy Cookbook/Finding Convex Hull) import string s = “string. With. Punctuation?” # Sample string out = s.translate(string.maketrans(“”,”“), string.punctuation) “No minimum fees. No server costs. We charge you for the exact time your functions take to run down to the millisecond.”
1 of 2
Older Posts »
|
