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Python `if x is not None` or `if not x is None`?
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1029
There's no performance difference, as they compile to the same bytecode:
Python 2.6.2 (r262:7...
Does .NET have a way to check if List a contains all items in List b?
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answered Oct 5 '09 at 15:06
Jon SkeetJon Skeet
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How do I download a tarball from GitHub using cURL?
...on to follow redirects:
curl -L https://github.com/pinard/Pymacs/tarball/v0.24-beta2 | tar zx
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How can one see content of stack with GDB?
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70
Use:
bt - backtrace: show stack functions and args
info frame - show stack start/end/args/loca...
emacs, unsplit a particular window split
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You can use the C-x0 key combination to delete the current window.
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Change text color of one word in a TextView
...e html.
String first = "This word is ";
String next = "<font color='#EE0000'>red</font>";
t.setText(Html.fromHtml(first + next));
But this will require you to rebuild the TextView when (if?) you want to change the color, which could cause a hassle.
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Why (0-6) is -6 = False? [duplicate]
...is. For instance, PyPy implemented the id of integer to return itself, so (0-6) is -6 is always true even if they are "different objects" internally; it also allows you to configure whether to enable this integer caching, and even set the lower and upper bounds. But in general, objects retrieved fro...
Margin while printing html page
...iour, the user must select 'Print preview' and then set the print size to 100% (default is Shrink To Fit).
A better option for full control on printed margins is to use the @page directive to set the paper margin, which will affect the margin on paper outside the html body element, which is normal...
How do you access a website running on localhost from iPhone browser
...ess network. How do I access localhost from the iPhone? Right now I get a 404 error.
26 Answers
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How to add multiple columns to a table in Postgres?
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answered Mar 10 '11 at 14:15
Erkan HaspulatErkan Haspulat
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