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SQL Server dynamic PIVOT query?
...tinct ',' + QUOTENAME(c.category)
FROM temp c
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)')
,1,1,'')
set @query = 'SELECT date, ' + @cols + ' from
(
select date
, amount
, categ...
How to break a line of chained methods in Python?
...me effect -- but it puts you in Lisp reading mode in the middle of reading Python, which I find jarring.
– zxq9
May 31 '13 at 1:02
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Is there any pythonic way to combine two dicts (adding values for keys that appear in both)?
... You could also use for k in b.viewkeys() & a.viewkeys(), when using python 2.7, and skip the creation of sets.
– Martijn Pieters♦
Jun 13 '12 at 10:32
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How to get only the last part of a path in Python?
In Python, suppose I have a path like this:
9 Answers
9
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Does Python SciPy need BLAS?
... liblapack-dev
Then install SciPy, (after downloading the SciPy source): python setup.py install or
pip install scipy
As the case may be.
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What's a standard way to do a no-op in python?
I often find myself writing if / elif / else constructs in python, and I want to include options which can occur, but for which the corresponding action is to do nothing. I realise I could just exclude those if statements, but for readability I find it helps to include them all, so that if you are l...
How to print a query string with parameter values when using Hibernate
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Change hibernate.cfg.xml to:
<property name="show_sql">true</property>
<property name="format_sql">true</property>
<property name="use_sql_comments">true</property>
Include log4j and below entries in "log4j....
Python dictionary: Get list of values for list of keys
...emgetter(*mykeys)(mydict)
# use `list(...)` if list is required
Note: in Python3, map returns an iterator rather than a list. Use list(map(...)) for a list.
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REST API - why use PUT DELETE POST GET?
... be via the already existing file extension such as .js, .json, .html, or .xml. A missing file extension would default to whatever format is default (such as JSON); a file extension that's not supported could return a 501 Not Implemented status code.
Another example:
POST: /cars/
{ make:chevrolet,...
What does |= (ior) do in Python?
... # `s1` is reassigned
{'a', 'b', 'c', 'd', 'e', 'f'}
Dictionaries
In Python 3.9+, new merge (|) and update (|=) operators are proposed between dictionaries. Note: these are not the same as set operators mentioned above.
Given operations between two assigned dicts d1 and d2:
>>> d1 = d...