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What is :: (double colon) in Python when subscripting sequences?

I know that I can use something like string[3:4] to get a substring in Python, but what does the 3 mean in somesequence[::3] ? ...
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remove None value from a list without removing the 0 value

... 366 >>> L = [0, 23, 234, 89, None, 0, 35, 9] >>> [x for x in L if x is not None]...
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Easy pretty printing of floats in python?

... answered May 3 '18 at 11:37 PlasmaBinturongPlasmaBinturong 1,2291111 silver badges1616 bronze badges ...
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Python division

...1 or from __future__ import division, which the forces / to adopt Python 3.x's behavior that always returns a float. >>> from __future__ import division >>> (10 - 20) / (100 - 10) -0.1111111111111111 sh...
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New Array from Index Range Swift

... 183 This works for me: var test = [1, 2, 3] var n = 2 var test2 = test[0..<n] Your issue could...
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CSS3 Transparency + Gradient

... 326 Yes. You can use rgba in both webkit and moz gradient declarations: /* webkit example */ back...
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How can I sort a dictionary by key?

What would be a nice way to go from {2:3, 1:89, 4:5, 3:0} to {1:89, 2:3, 3:0, 4:5} ? I checked some posts but they all use the "sorted" operator that returns tuples. ...
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How can I confirm a database is Oracle & what version it is using SQL?

...--------------------------------------- Oracle Database 10g Release 10.2.0.3.0 - 64bit Production PL/SQL Release 10.2.0.3.0 - Production CORE 10.2.0.3.0 Production TNS for Solaris: Version 10.2.0.3.0 - Production NLSRTL Version 10.2.0.3.0 - Production ...
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“ValueError: zero length field name in format” error in Python 3.0,3.1,3.2

I'm trying learn Python (3 to be more specific) and I'm getting this error: 3 Answers ...
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Divide a number by 3 without using *, /, +, -, % operators

How would you divide a number by 3 without using * , / , + , - , % , operators? 48 Answers ...