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Python, compute list difference
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373
If the order does not matter, you can simply calculate the set difference:
>>> set([...
How can I multiply all items in a list together with Python?
...t takes
a list of numbers and multiplies them together. Example:
[1,2,3,4,5,6] will give me 1*2*3*4*5*6 . I could really use your help.
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Joda-Time: what's the difference between Period, Interval and Duration?
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3 classes are needed because they represent different concepts so it is a matter of picking the appropriate one for the job rather than of relative performance. From the documentation with comments added by me in italics:
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Read stream twice
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Captain Man
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answered Feb 29 '12 at 14:59
Paul GrimePaul Grime
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Pad a string with leading zeros so it's 3 characters long in SQL Server 2008
I have a string that is up to 3 characters long when it's first created in SQL Server 2008 R2.
17 Answers
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Windows shell command to get the full path to the current directory?
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369
Use cd with no arguments if you're using the shell directly, or %cd% if you want to use it in ...
What does the “map” method do in Ruby?
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432
The map method takes an enumerable object and a block, and runs the block for each element, out...
Why exactly is eval evil?
...tors:
(let ((ops '(+ *)))
(dolist (op ops)
(print (eval (list op 1 2 3)))))
That's better written as:
(let ((ops '(+ *)))
(dolist (op ops)
(print (funcall op 1 2 3))))
There are lots of examples where beginners learning Lisp think they need EVAL, but they don't need it - since expressi...
Could not find com.google.android.gms:play-services:3.1.59 3.2.25 4.0.30 4.1.32 4.2.40 4.2.42 4.3.23
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edited Dec 3 '15 at 1:20
CJBS
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a...
Get: TypeError: 'dict_values' object does not support indexing when using python 3.2.3 [duplicate]
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3 Answers
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