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How to override the [] operator in Python?
...erwise this will happen:
>>> myobj[5] = 1
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: MyClass instance has no attribute '__setitem__'
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Undoing a git bisect mistake
...scover that you made a mistake in specifying the status of a revision, you can save the output of this command to a file, edit it to remove the incorrect entries, and then issue the following commands to return to a corrected state:
$ git bisect reset
$ git bisect replay that-file
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How do you do natural logs (e.g. “ln()”) with numpy in Python?
Using numpy, how can I do the following:
4 Answers
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Why does “while(true)” without “Thread.sleep” cause 100% CPU usage on Linux but not on Windows?
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By default, top on Linux runs in so-called IRIX mode, while the Windows Task Manager does not. Let's say you have 4 cores:
With IRIX mode on, 1 fully utilized core is 100% and 4 cores are 400%.
With IRIX mode off, 1 fully utilized core is 25% and 4 cores are...
How to display a content in two-column layout in LaTeX?
...ulticols}
If you omit the \columnbreak, the columns will balance automatically.
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How to use split?
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Documentation can be found e.g. at MDN. Note that .split() is not a jQuery method, but a native string method.
If you use .split() on a string, then you get an array back with the substrings:
var str = 'something -- something_else';
var...
Show current key setting?
...tunately, map expands <key_name> values in both the LHS and RHS. You can exploit this to see the value of <Leader> even if it is the default value.
:nmap temp :echo('your leader is "<Leader>"')<Esc>| execute 'normal temp'| nunmap temp
Note that if you put this in your .vim/v...
Netbeans: how to change @author
...osing your e-mail address. The javadoc processor will think it's HTML, and call it an error.
– Stevens Miller
Sep 14 '16 at 19:01
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GridView VS GridLayout in Android Apps
...associated with this view.
This is what you'd want to use (keep using). Because a GridView gets its data from a ListAdapter, the only data loaded in memory will be the one displayed on screen.
GridViews, much like ListViews reuse and recycle their views for better performance.
Whereas a GridLayou...
What is the difference between Server.MapPath and HostingEnvironment.MapPath?
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Server.MapPath() eventually calls HostingEnvironment.MapPath(), but it creates a VirtualPath object with specific options:
The VirtualPath object passed to HostingEnvironment.MapPath() is constructed like this:
VirtualPath.Create(path, VirtualPathO...