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Python: Get the first character of the first string in a list?

...wo conflicting worlds of Python's "list slicing, indexing, subsetting" and then Numpy's "masking, slicing, subsetting, indexing, then numpy's enhanced fancy indexing". These two videos cleared things up for me: "Losing your Loops, Fast Numerical Computing with NumPy" by PyCon 2015: https://youtu.b...
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How to use SSH to run a local shell script on a remote machine?

...line evaluation, which defines environment variables on the remote server, then executes the bash -s command using those variables. Voila. share | improve this answer | foll...
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What resources are shared between threads?

...area of the process is divided among threads, i.e. if there are 3 threads, then the stack area of the process is divided into 3 parts and each is given to the 3 threads. In other words, when we say that each thread has its own stack, that stack is actually a part of the process stack area allocated ...
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Checking whether a variable is an integer or not [duplicate]

... First check if it's an int (or a long), then check if it's a float and, if it is, check if is_integer() is true. Notice that there is no long type in Python 3. – Agostino Apr 29 '15 at 18:44 ...
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NuGet Package Manager errors when trying to update

... older version installed. The workaround is to simply uninstall NuGet and then install it from the VS Extension Gallery. See http://support.microsoft.com/kb/2581019 for more information, or to go directly to the VS hotfix. Note: If Visual Studio won't allow you to uninstall the extension (the Unin...
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How to automatically select all text on focus in WPF TextBox?

...nd of preview events at all. Which solution should be used for silverlight then? thanks in advance – Valentin Kuzub Oct 5 '11 at 1:57 4 ...
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Is MD5 still good enough to uniquely identify files?

...n identical hash value "probably means" the 2nd was copied correctly (even then, it's not 100% sure, but highly likely). – Olivier Dulac May 19 '16 at 15:32 3 ...
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Query grants for a table in postgres

... \z mytable from psql gives you all the grants from a table, but you'd then have to split it up by individual user. share | improve this answer | follow | ...
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Javascript !instanceof If Statement

...st in if(!obj instanceof Array), which evaluates to true (or false), which then becomes if(bool instanceof Array), which is obviously false. Therefore, wrap it in parenthesis as suggested. – ronnbot Nov 26 '13 at 20:07 ...
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Switch statement for greater-than/less-than

...nd maybe its a function applied only, like validating a single user input, then readability is chosen rather than performance in such case. – Jesús Franco Oct 10 '17 at 3:42 1 ...