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mongodb: insert if not exists
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157
Sounds like you want to do an "upsert". MongoDB has built-in support for this. Pass an extra...
How do I daemonize an arbitrary script in unix?
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12 Answers
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How do you update Xcode on OSX to the latest version?
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11 Answers
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Read user input inside a loop
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107
Read from the controlling terminal device:
read input </dev/tty
more info: http://compgr...
How do I add a path to PYTHONPATH in virtualenv
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157
You can usually avoid having to do anything with PYTHONPATH by using .pth files. Just put a fi...
Converting from a string to boolean in Python?
...e'
Or to checks against a whole bunch of values:
s.lower() in ['true', '1', 't', 'y', 'yes', 'yeah', 'yup', 'certainly', 'uh-huh']
Be cautious when using the following:
>>> bool("foo")
True
>>> bool("")
False
Empty strings evaluate to False, but everything else evaluates to...
Using IQueryable with Linq
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515
Marc Gravell's answer is very complete, but I thought I'd add something about this from the use...
Importing from a relative path in Python
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EDIT Nov 2014 (3 years later):
Python 2.6 and 3.x supports proper relative imports, where you...
Throttling method calls to M requests in N seconds
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14 Answers
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Difference between HEAD and master
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master is a reference to the end of a branch. By convention (and by default) this is usually t...