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How to know what the 'errno' means?
When calling execl(...) , I get an errno=2 . What does it mean? How can I know the meaning of this errno ?
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An efficient way to transpose a file in Bash
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How to stop mongo DB in one command
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Starting and Stopping MongoDB is covered in the MongoDB manual. It explains the various option...
arrayfun can be significantly slower than an explicit loop in matlab. Why?
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Android Studio rendering problems
I'm using Android Studio 0.2.3 and when opened an activity layout normally, the preview should appear on the right side, so that I can switch between Text and Design mode, which should again show the preview of the layout.
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Add missing dates to pandas dataframe
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You could use Series.reindex:
import pandas as pd
idx = pd.date_range('09-01-2013', '09-30-2...
Why is there huge performance hit in 2048x2048 versus 2047x2047 array multiplication?
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This probably has do with conflicts in your L2 cache.
Cache misses on matice1 are not the problem because they are accessed sequentially.
However for matice2 if a full column fits in L2 (i.e when you access matice2[0, 0], matice2[1, 0], matice2[2, 0] ... etc, nothing g...
What are Bearer Tokens and token_type in OAuth 2?
...lement the Resource Owner & Password Credentials flow from the OAuth 2 spec. I'm having trouble understanding the token_type value that gets sent back with a valid response. In the spec all the examples show "token_type":"example" but says it should be
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Is False == 0 and True == 1 an implementation detail or is it guaranteed by the language?
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In Python 2.x this is not guaranteed as it is possible for True and False to be reassigned. However, even if this happens, boolean True and boolean False are still properly returned for comparisons.
In Python 3.x True and False are k...