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Javascript equivalent of Python's zip function
... out that ES6 has variadic argument syntax, so the following function definition will act like python, but see below for disclaimer... this will not be its own inverse so zip(zip(x)) will not equal x; though as Matt Kramer points out zip(...zip(...x))==x (like in regular python zip(*zip(*x))==x))
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Can you do a partial checkout with Subversion?
If I had 20 directories under trunk/ with lots of files in each and only needed 3 of those directories, would it be possible to do a Subversion checkout with only those 3 directories under trunk?
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When I catch an exception, how do I get the type, file, and line number?
...s e:
exc_type, exc_obj, exc_tb = sys.exc_info()
fname = os.path.split(exc_tb.tb_frame.f_code.co_filename)[1]
print(exc_type, fname, exc_tb.tb_lineno)
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What is the single most influential book every programmer should read? [closed]
...ific book at the beginning of your career as a developer, which book would it be?
214 Answers
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Iterate a list as pair (current, next) in Python
I sometimes need to iterate a list in Python looking at the "current" element and the "next" element. I have, till now, done so with code like:
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add column to mysql table if it does not exist
...o record in your database a revision number for the schema. Just a table with a single column and single row, with an integer indicating which revision is current in effect. When you update the schema, increment the number.
Another solution would be to just try the ALTER TABLE ADD COLUMN command....
The required anti-forgery form field “__RequestVerificationToken” is not present Error in user Regis
... @ConductedClever You should carefully check everything (fields, cookies) with fiddler and/or firebug (any browser dev tools), look at this article: asp.net/web-api/overview/security/…
– webdeveloper
Aug 13 '14 at 13:49
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Random Gaussian Variables
... there a class in the standard library of .NET that gives me the functionality to create random variables that follow Gaussian distribution?
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UIRefreshControl without UITableViewController
Just curious, as it doesn't immediately seem possible, but is there a sneaky way to leverage the new iOS 6 UIRefreshControl class without using a UITableViewController subclass?
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How do you programmatically set an attribute?
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setattr(x, attr, 'magic')
For help on it:
>>> help(setattr)
Help on built-in function setattr in module __builtin__:
setattr(...)
setattr(object, name, value)
Set a named attribute on an object; setattr(x, 'y', v) is equivalent to
``x.y = ...