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In Python, what is the difference between “.append()” and “+= []”?
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163
For your case the only difference is performance: append is twice as fast.
Python 3.0 (r30:6750...
mingw-w64 threads: posix vs win32
I'm installing mingw-w64 on Windows and there are two options: win32 threads and posix threads. I know what is the difference between win32 threads and pthreads but I don't understand what is the difference between these two options. I doubt that if I will choose posix threads it will prevent me fro...
Is there any downside for using a leading double slash to inherit the protocol in a URL? i.e. src=“/
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If the browser supports RFC 1808 Section 4, RFC 2396 Section 5.2, or RFC 3986 Section 5.2, then it will indeed use the page URL's scheme for references that begin with "//".
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How do I get the row count of a pandas DataFrame?
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1387
You can use the .shape property or just len(DataFrame.index). However, there are notable perfo...
How can I force users to access my page over HTTPS instead of HTTP?
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edited Jun 21 '11 at 16:34
Xeoncross
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NSNotificationCenter addObserver in Swift
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idrougge
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answered Jun 4 '14 at 23:12
ConnorConnor
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What is a memory fence?
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edited Oct 13 '12 at 2:13
Kirill Kobelev
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How does the new automatic reference counting mechanism work?
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edited May 23 '17 at 12:02
Community♦
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answered Jun 20 '11 at 22:43
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How do you calculate program run time in python? [duplicate]
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JoshAdelJoshAdel
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One-liner to check whether an iterator yields at least one element?
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135
any won't go beyond the first element if it's True. In case the iterator yields something false...