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AVD Manager - Cannot Create Android Virtual Device
I just installed the Android Eclipse Plugin and the Android SDK from Google yesterday. I open the AVD Manager window by going to Window -> Android Virtual Device Manager . I then click "New" and am presented with the "Create new Android Virtual Device (AVD)" window. The problem is, I can't get t...
What are the differences between segment trees, interval trees, binary indexed trees and range trees
...re differences between segment trees, interval trees, binary indexed trees and range trees in terms of:
2 Answers
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How do I convert an existing callback API to promises?
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Promises have state, they start as pending and can settle to:
fulfilled meaning that the computation completed successfully.
rejected meaning that the computation failed.
Promise returning functions should never throw, they should return rejections instead. Throwi...
Is there a documented way to set the iPhone orientation?
...vice rotation in certain views but other don't particularly make sense in Landscape mode, so as I swapping the views out I would like to force the rotation to be set to portrait.
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How is Python's List Implemented?
Is it a linked list, an array? I searched around and only found people guessing. My C knowledge isn't good enough to look at the source code.
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Which version of Python do I have installed?
...script on a Windows server. How can I know which version of Python I have, and does it even really matter?
22 Answers
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How to generate all permutations of a list?
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Starting with Python 2.6 (and if you're on Python 3) you have a standard-library tool for this: itertools.permutations.
import itertools
list(itertools.permutations([1, 2, 3]))
If you're using an older Python (<2.6) for some reason or are just...
How do I center floated elements?
I'm implementing pagination, and it needs to be centered. The problem is that the links need to be displayed as block, so they need to be floated. But then, text-align: center; doesn't work on them. I could achieve it by giving the wrapper div padding of left, but every page will have a different ...
pandas GroupBy columns with NaN (missing) values
...the same placeholder hack).
However, as described in another answer, from pandas 1.1 you have better control over this behavior, NA values are now allowed in the grouper using dropna=False
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How to get the return value from a thread in python?
...m) for param in param_list] The order will be maintained, and exiting the with will allow result collection. [f.result() for f in futures]
– jayreed1
Jun 4 at 21:29
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