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Python try…except comma vs 'as' in except
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288
The definitive document is PEP-3110: Catching Exceptions
Summary:
In Python 3.x, using as i...
Standard alternative to GCC's ##__VA_ARGS__ trick?
...clang and icc have adopted this GCC extension, but MSVC has not.
Back in 2001 I wrote up the GCC extension for standardization (and the related extension that lets you use a name other than __VA_ARGS__ for the rest-parameter) in document N976, but that received no response whatsoever from the comm...
Asterisk in function call
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182
* is the "splat" operator: It takes a list as input, and expands it into actual positional argum...
Different ways of clearing lists
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362
Clearing a list in place will affect all other references of the same list.
For example, this m...
How to prevent a background process from being stopped after closing SSH client in Linux
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20 Answers
20
Active
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Inserting HTML elements with JavaScript
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124
Instead of directly messing with innerHTML it might be better to create a fragment and then ins...
Associativity of “in” in Python?
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123
1 in [] in 'a' is evaluated as (1 in []) and ([] in 'a').
Since the first condition (1 in [])...
Rails: Default sort order for a rails model?
...eRecord::Base
default_scope { order(created_at: :desc) }
end
For Rails 2.3, 3, you need this instead:
default_scope order('created_at DESC')
For Rails 2.x:
default_scope :order => 'created_at DESC'
Where created_at is the field you want the default sorting to be done on.
Note: ASC is...
What optimizations can GHC be expected to perform reliably?
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112
+150
This GHC...
Inverse dictionary lookup in Python
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answered Apr 2 '10 at 19:21
Ignacio Vazquez-AbramsIgnacio Vazquez-Abrams
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