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How can I pass a list as a command-line argument with argparse?
...to the option to pick defaults if I am not passing any explicit arguments
Including a code snippet as example:
Example: temp_args1.py
Please Note: The below sample code is written in python3. By changing the print statement format, can run in python2
#!/usr/local/bin/python3.6
from argparse imp...
When should I use a composite index?
...parate indexes for geolat and geolng when I'll ALWAYS perform a query that include both columns
– Teddy
Dec 1 '09 at 3:51
1
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Python hashable dicts
...
Note, there is no need to include both the keys and and the values. This solution would be much faster as: hash(frozenset(d)).
– Raymond Hettinger
Apr 23 '13 at 6:09
...
Condition within JOIN or WHERE
...d you write the queries in the most readable way possible.
Sometimes this includes making the INNER JOIN relatively "incomplete" and putting some of the criteria in the WHERE simply to make the lists of filtering criteria more easily maintainable.
For example, instead of:
SELECT *
FROM Customers ...
UILabel text margin [duplicate]
...hould also override intrinsicContentSize to increase the intrinsic size to include the insets so that auto layout will work properly.
– progrmr
Jul 28 '14 at 1:39
1
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PHP Function Comments
...ing constructs which allow them
* (classes, properties, methods, defines, includes, globals). See the
* phpDocumentor documentation for more information.
* http://phpdoc.org/tutorial_phpDocumentor.howto.pkg.html
*
* The Javadoc Style Guide is an excellent resource for figuring out
* how to sa...
What's the difference between session.persist() and session.save() in Hibernate?
...
I have done good research on the save() vs. persist() including running it on my local machine several times. All the previous explanations are confusing and incorrect. I compare save() and persist() methods below after a thorough research.
Save()
Returns generated Id after sav...
What algorithm does Readability use for extracting text from URLs?
...ks" page on the boilerpipe wiki which compares some extraction strategies, including boilerpipe, Readability and Apple Safari.
I should mention that these algorithms assume that the main content is actually full text. There are cases where the "main content" is something else, e.g. an image, a tabl...
What is the bower (and npm) version syntax?
...e .x would serve. As an example, see npm itself: its own package.json file includes lots of dependencies in ~2.4.0 format, rather than the 2.4.x format it could use. By sticking to ~, the syntax is consistent all the way down a list of 70+ versioned dependencies, regardless of which beginning patch ...
Dynamically adding a form to a Django formset with Ajax
...his, I used it with inline_form set in Django 1.3, and it works perfectly, including prepopulation, client side form adding, removing, and multiple inline_formsets.