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Why is it faster to check if dictionary contains the key, rather than catch the exception in case it

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Why do I need 'b' to encode a string with Base64?

... Greg SchmitGreg Schmit 3,39822 gold badges1616 silver badges3232 bronze badges 8 ...
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Reading an Excel file in python using pandas

....842871 8.265307 1 2006-09-01 01:00:00 0 5.712107 0.605211 3.416617 8.301360 2 2006-09-01 02:00:00 0 5.105300 0.605211 3.090865 8.335395 3 2006-09-01 03:00:00 0 4.098209 0.605211 3.198452 8.170187 4 2006-09-01 04:00:00 0 3.338196 0.605211 2.970015 ...
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When to use “ON UPDATE CASCADE”

... | edited Jun 6 '16 at 22:16 Gray 106k2020 gold badges257257 silver badges325325 bronze badges ...
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What happens if you call erase() on a map element while iterating from begin to end?

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Setting up FTP on Amazon Cloud Server [closed]

... | edited Apr 26 '16 at 16:40 answered Jul 9 '12 at 22:24 ...
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SQL how to increase or decrease one for a int column in one command

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When should you use constexpr capability in C++11?

...e written as such. – alecov Jul 29 '16 at 16:11 4 @alecov Definitly not everything... I/O, syscal...
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Why did my Git repo enter a detached HEAD state?

... 16 In fact, you will get a detached HEAD whenever you checkout any commit by its SHA1, whether or not it's at the tip of a branch; the only ki...
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Focus-follows-mouse (plus auto-raise) on Mac OS X

...looking for. – MasterZ Apr 7 '12 at 16:26 This is definitely only a partial solution -- but it's an easy and useful pa...