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Calling parent class __init__ with multiple inheritance, what's the right way?
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If you are writing python (hopefully 3!) and using inheritance of any sort, but especially multiple, then rhettinger.wordpress.com/2011/05/26/super-considered-super should be required reading.
– Shawn Mehan
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HTTP response code for POST when resource already exists
...ferenced in the answer: "For example, this error condition may occur if an XML request body contains well-formed (i.e., syntactically correct), but semantically erroneous, XML instructions." This is the real meaning of an unprocessable entity, unlike the case when you send completely valid request e...
How to write header row with csv.DictWriter?
...e csvfile.
Put another way: The Fieldnames argument is required because Python dicts are inherently unordered.
Below is an example of how you'd write the header and data to a file.
Note: with statement was added in 2.6. If using 2.5: from __future__ import with_statement
with open(infile,'rb') a...
count (non-blank) lines-of-code in bash
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When I first asked this question, 'cloc' counted Python docstrings as lines of code, which was suboptimal IMHO. Modern versions of 'cloc' now count Python docstrings as comments, which I like much more.
– Jonathan Hartley
Jun 30 '16 at...
How to debug a Flask app
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export FLASK_APP=/daemon/api/views.py # path to app
export FLASK_DEBUG=1
python -m flask run --host=0.0.0.0
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Performing user authentication in Java EE / JSF using j_security_check
...m authentication:
Still following the above blog post, configure your web.xml and sun-web.xml, but instead of using BASIC authentication, use FORM (actually, it doesn't matter which one you use, but I ended up using FORM). Use the standard HTML , not the JSF .
Then use BalusC's tip above on lazy i...
How can I convert a string to upper- or lower-case with XSLT?
...tom managed functions in the stylesheet. For lower-case() it can be:
<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:msxsl="urn:schemas-microsoft-com:xslt" xmlns:utils="urn:myExtension" exclude-result-prefixes=...
NAnt or MSBuild, which one to choose and when?
... Studio. With NAnt I just have Visual Studio treat the .build script as an XML file.
Apparently, in Visual Studio, Web Application Projects don't get a *.*proj file by default, so I had great difficulty figuring out how to even get MSBuild to run on mine to create a deployment script.
NAnt is not bu...
What's the fastest way to do a bulk insert into Postgres?
... is slower than using COPY but it is useful to me in work with psycopg and python (python list passed to cursor.execute becomes pg ARRAY):
INSERT INTO tablename (fieldname1, fieldname2, fieldname3)
VALUES (
UNNEST(ARRAY[1, 2, 3]),
UNNEST(ARRAY[100, 200, 300]),
UNNEST(ARRAY['a', 'b', '...
Convert hex to binary
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docs.python.org/library/binascii.html is subtitled Convert between binary and ASCII. Doesn't that mean it returns a string?
– pavium
Sep 15 '09 at 6:58
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