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Re-raise exception with a different type and message, preserving existing information
...ture, the __cause__ attribute is set. The built-in exception handler also knows how to report the exception's “cause” and “context” along with the traceback.
In Python 2, it appears this use case has no good answer (as described by Ian Bicking and Ned Batchelder). Bummer.
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SET versus SELECT when assigning variables?
...d hide the fact that multiple values were returned (so you'd likely never know why something was going wrong elsewhere - have fun troubleshooting that one)
When assigning from a query if there is no value returned then SET will assign NULL, where SELECT will not make the assignment at all (so the ...
How do I pull my project from github?
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Both of those links appear to be broken now. :(
– Chris Peters
Apr 5 '11 at 15:43
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What is the basic difference between the Factory and Abstract Factory Design Patterns? [closed]
...an IFruitFactory or an IJuiceFactory, without requiring your warehouse to know anything about fruits or juices.
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Heroku/devise - Missing host to link to! Please provide :host parameter or set default_url_options[:
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now the sendgrid command is heroku addons:add sendgrid:starter (view usage details at devcenter.heroku.com/articles/sendgrid)
– Danny
Oct 27 '11 at 14:33
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get list from pandas dataframe column
...n in this way I will struggle. it's getting there, there are some examples now, but not for every method.
– yoshiserry
Mar 12 '14 at 4:02
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How can I tell Rails to use RSpec instead of test-unit when creating a new Rails app?
...mmand line install rspec into your application:
$ rails g rspec:install
Now your rails application uses RSpec instead of test-unit.
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How can I send an email by Java application using GMail, Yahoo, or Hotmail?
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I'd like to know more about that spam limit... I do have to send several emails, should I split them in groups? wait for a specified amount of time? Anybody knows the details of google mails limitations?
– opensas
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Maven project version inheritance - do I have to specify the parent version?
...May 14 '12 at 11:20
Michał KalinowskiMichał Kalinowski
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How do API Keys and Secret Keys work? Would it be secure if I have to pass my API and secret keys to
...the result is greater than ten, subtracts ten. So f(2) = 5, f(8) = 1, etc. Now, we can make another function, call it f', that goes backwards, by adding seven instead of three. f'(5) = 2, f'(1) = 8, etc.
That's an example of a two-way function and its inverse. Theoretically, any mathematical functi...