Okay, I’m making a mock “object-like” object out of a dict. Details should be pretty much irrelevant. The behavior that I want is like this: o = ObjectLike() # Here, we construct and assign arbitrary nested objects of # type ObjectLike. o.foo.bar.baz = ‘something’ # We can see the nested objects: print o.foo <__main__.ObjectLike object [...]
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Minimongo is an extremely lightweight, schemaless ORM for Python & MongoDB. Minimongo delegates queries directly to pymongo. Minimongo is schemaless. (No Schema validation at all.) Minimongo manages database connections for you. Minimongo offers many other conveniences on top of pymongo, but preserves the raw spirit and feel of pymongo. I’ve been using MongoDB for my latest [...]
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Here’s the code for a Python dereference function using pymongo that understands cross-database references properly: import pymongo def dereference(ref): dbname = ref.database collname = ref.collection print ref return pymongo.Connection()[dbname][collname].find_one({‘_id’: ref.id})
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This code for doing an identity map & identity reduce in MongoDB. Mostly, this is useful for debugging and testing. This code is written in Python, and using the pymongo driver. from pymongo.code import Code connection = pymongo.Connection() # You’ll need to get your DB and your Collection here. # From here on, we assume [...]
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I use lame for batch transcodes of mp3 files, for when I want to put them on a CD-R, or on my phone. I transcode them down to a much lower bitrate than what I store on my server. But, if I just use lame for this transcoding, it dosen’t copy the id3 tags properly. [...]
Continue Reading →It took me a while to figure this out, so I’m writing it down. What I wanted was to have my django.wsgi script use the production settings and to have bin/django use the development settings. Sounds easy, right? It’s not obvious what the right way to accomplish this is, but here’s what I’ve come up [...]
Continue Reading →If you’re running easy_install, pip, zc.buildout, virtualenv, or a similar tool on Windows, and it says: unable to find vcvarsall.bat The issue is that you need a compiler installed on your system. Many people seem to recommend MinGW, but I’ve been there, and it’s a huge pain in the butt. Just download and install Microsoft [...]
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Django development on Windows sounds easy, but there are a bunch of steps to get it all working right. Python. Use Python 2.7 from python.org http://python.org/download/. I recommend avoiding the 3rd party Python distributions (ActiveState, Enthought, etc.) and sticking with the official build. As a note, this python is (currently) built with Video Studio 2008. [...]
Continue Reading →Without looking at the documentation (or running the code), describe the outputs of the following 4 function calls: from datetime import datetime datetime.datetime.now() datetime.datetime.today() datetime.datetime.now().date() datetime.datetime.today().date() Post your answers as a comment.
Continue Reading →I saw this post on Friendfeed, and thought I’d reproduce the code here, because it’s a really interesting Python snippet, and to me, basically says never, ever use the ‘is’ operator. Here’s the snippet that I just reproduced on Python 2.5.2 and 2.6.5: In [1]: a = 500 In [2]: b = 500 In [3]: [...]
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