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Python 3.x rounding behavior
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Python 3's way (called "round half to even" or "banker's rounding") is considered the standard rounding method these days, though some language implementations aren't on the bus yet.
The simple "always round 0.5 up" technique results in a slight bias toward the higher number. With large numbe...
How do you format an unsigned long long int using printf?
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edited Apr 25 '12 at 22:13
rogerdpack
46.2k3030 go...
Difference between thread's context class loader and normal classloader
What is the difference between a thread's context class loader and a normal class loader?
4 Answers
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Are lists thread-safe?
I notice that it is often suggested to use queues with multiple threads, instead of lists and .pop() . Is this because lists are not thread-safe, or for some other reason?
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Convert .pem to .crt and .key
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I was able to convert pem to crt using this:
openssl x509 -outform der -in your-cert.pem -out your-cert.crt
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Delete column from pandas DataFrame
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As you've guessed, the right syntax is
del df['column_name']
It's difficult to make del df.column_name work simply as the result of syntactic limitations in Python. del df[name] gets translated to df.__delitem__(name) under the covers by Python.
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What is NSLayoutConstraint “UIView-Encapsulated-Layout-Height” and how should I go about forcing it
... UIView-Encapsulated-Layout-Height constraint always takes precedence.
It is based on what you return in -tableView:heightForRowAtIndexPath:. Make sure to return the right value and your own constraint and the generated one should be the same. The lower priority for your own constraint is only nee...
load and execute order of scripts
... run in an unpredictable order. The browser loads them in parallel and it is free to run them in whatever order it wants.
There is no predictable order among multiple async things. If one needed a predictable order, then it would have to be coded in by registering for load notifications from the ...
How do I attach events to dynamic HTML elements with jQuery? [duplicate]
...new answer to reflect changes in later jQuery releases. The .live() method is deprecated as of jQuery 1.7.
From http://api.jquery.com/live/
As of jQuery 1.7, the .live() method is deprecated. Use .on() to attach event handlers. Users of older versions of jQuery should use .delegate() in prefer...
Restful way for deleting a bunch of items
In wiki article for REST
it is indicated that if you use http://example.com/resources DELETE, that means you are deleting the entire collection.
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