Daniele Esposti's Blog

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64-bit Mac os x Skia

Build 64-bit Skia on Mac OS X

It takes me a while to discover how to do it, so I’ll leave this post as a note to myself and to anyone which will have the same need. By default Skia

1 min read
Bugs Mutable types Python

Beware of keyword's default values

Look this class definition, do you see what’s is wrong and potentially generate big problems in you code?

1 min read
Consumer Gil Multicore Multiprocessing Producer Python Queues Threads

Parallel data processing

Developing an application or script which process data is a straight-forward pattern: data is collected, processed and the result is provided to be stored in a file or database. Those three blocks (collect,

6 min read
Linux Mac os x Pyqt Python Qt Virtualenv

Build PyQt4 into your virtualenv

Here I’ll show the steps to build and install PyQt4 inside a virtualenv.

1 min read
Orm Python Sqlalchemy

Object's instance key in SQLAlchemy

In SQLAlchemy you can query the database returning ORM objects instead of raw data from the SQL statement (if you don’t know about it this is a good starting point).

3 min read
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