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How to add new item to hash
...eate the hash:
hash = {:item1 => 1}
Add a new item to it:
hash[:item2] = 2
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Predicate Delegates in C#
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324
A predicate is a function that returns true or false. A predicate delegate is a reference to a...
Reversing a linked list in Java, recursively
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32 Answers
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Convert from ASCII string encoded in Hex to plain ASCII?
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233
A slightly simpler solution:
>>> "7061756c".decode("hex")
'paul'
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What is the full path to the Packages folder for Sublime text 2 on Mac OS Lion
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/Users/{user}/Library/Application Support/Sublime Text 2/Packages
Get to it quickly from within Sublime via the menu at Sublime Text 2... Preferences... Browse Packages
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Android: How to change CheckBox size?
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answered Jan 28 '10 at 7:36
moraesmoraes
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[] and {} vs list() and dict(), which is better?
...>>> from timeit import timeit
>>> timeit("[]")
0.040084982867934334
>>> timeit("list()")
0.17704233359267718
>>> timeit("{}")
0.033620194745424214
>>> timeit("dict()")
0.1821558326547077
and for non-empty:
>>> timeit("[1,2,3]")
0.2431630277033...
Algorithm for Determining Tic Tac Toe Game Over
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Convert numpy array to tuple
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>>> arr = numpy.array(((2,2),(2,-2)))
>>> tuple(map(tuple, arr))
((2, 2), (2, -2))
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Display number with leading zeros
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In Python 2 (and Python 3) you can do:
print "%02d" % (1,)
Basically % is like printf or sprintf (see docs).
For Python 3.+, the same behavior can also be achieved with format:
print("{:02d}".format(1))
For Python 3.6+ the s...