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What does a b prefix before a python string mean?
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This is Python3 bytes literal. This prefix is absent in Python 2.5 and older (it is equivalent to a plain string of 2.x, while plain string of 3.x is equivalent to a literal with u prefix in 2.x). In Python 2.6+ it is equivalent to a plain string, for compatibility with 3.x.
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Select something that has more/less than x character
...e documentation:
http://www.techonthenet.com/oracle/functions/length.php
And here is the mySQL Documentation of Length(string):
http://dev.mysql.com/doc/refman/5.1/en/string-functions.html#function_length
For PostgreSQL, you can use length(string) or char_length(string). Here is the PostgreSQL d...
How to get an absolute file path in Python
...resumed), there is no linkage between the argument to the abspath function and a real file. You could give any pathname- non-existent files and directory heirarchies are fine- and abspath will simply resolve the bits of the path (including the parent directory ".." element) and return a string. This...
How to print full stack trace in exception?
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Very good. I was looking for a simple way to do it and here it is. Some little concern is it is not as much explicit as if you use exception.StackTrace object (for example). I wonder if there is a more explicit way to do the same?
– codea
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Java: What is the difference between and ?
I am unable to understand the following text... Does it mean that <clinit> is for empty constructors? Why is important to have two different versions?
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How to get the last N rows of a pandas DataFrame?
I have pandas dataframe df1 and df2 (df1 is vanila dataframe, df2 is indexed by 'STK_ID' & 'RPT_Date') :
3 Answers
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How to run mvim (MacVim) from Terminal?
I have MacVim installed and I am trying to set it up as the editor for Git (version control), but I can't run 'mvim' from the command line as it isn't recognised. How do I setup mvim so I can run it from Terminal?
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How to get current foreground activity context in android?
... still return a small subset of its data: at least the caller's own tasks, and possibly some other tasks such as home that are known to not be sensitive.
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sql primary key and index
...x does no good, but the only harm (very small) is the additional file size and row-creation overhead.
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Use a normal link to submit a form
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Two ways. Either create a button and style it so it looks like a link with css, or create a link and use onclick="this.closest('form').submit();return false;".
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