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What is :: (double colon) in Python when subscripting sequences?
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it means 'nothing for the first argument, nothing for the second, and jump by three'. It gets every third item of the sequence sliced.
Extended slices is what you want. New in Python 2.3
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Query to list all stored procedures
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As Mike stated, the best way is to use information_schema. As long as you're not in the master database, system stored procedures won't be returned.
SELECT *
FROM DatabaseName.INFORMATION_SCHEMA.ROUTINES
WHERE ROUTINE_TYPE = 'PROCEDURE'
If for some reason yo...
Could not reserve enough space for object heap
...JVM with -XX:MaxHeapSize=512m (or any big number as you need) (or -Xmx512m for short)
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What is the most “pythonic” way to iterate over a list in chunks?
... a list of integers, which I need to work with four integers at a time. Unfortunately, I don't have control of the input, or I'd have it passed in as a list of four-element tuples. Currently, I'm iterating over it this way:
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How do you reference a capture group with regex find and replace in Visual Studio 2012, 2013, 2015,
...ically referenced which VS version they referred to. With that important information lacking, I still was unable to successfully use the answers I found. The most common was
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Object comparison in JavaScript [duplicate]
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Unfortunately there is no perfect way, unless you use _proto_ recursively and access all non-enumerable properties, but this works in Firefox only.
So the best I can do is to guess usage scenarios.
1) Fast and limited.
Wor...
Unique fields that allow nulls in Django
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Django has not considered NULL to be equal to NULL for the purpose of uniqueness checks since ticket #9039 was fixed, see:
http://code.djangoproject.com/ticket/9039
The issue here is that the normalized "blank" value for a form CharField is an empty string, not None. So if ...
Best way to generate random file names in Python
...te temporary file names, see http://docs.python.org/library/tempfile.html. For instance:
In [4]: import tempfile
Each call to tempfile.NamedTemporaryFile() results in a different temp file, and its name can be accessed with the .name attribute, e.g.:
In [5]: tf = tempfile.NamedTemporaryFile()
In...
Get a list of checked checkboxes in a div using jQuery
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This was great for the simple map. I changed children to find to look deeper, and needed jquery attributes so used $(this) (and wrote this comment for when I come looking again...)
– goodeye
May 25 '1...
Tool to read and display Java .class versions
Do any of you know of a tool that will search for .class files and then display their compiled versions?
9 Answers
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