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How to make a cross-module variable?
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@sedeh: no. If a.py is also run as a script then use if __name__=="__main__" guard in it to avoid running unexpected code on import.
– jfs
Aug 23 '14 at 12:31
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New Line on PHP CLI
I have a php CLI script and cannot get the output to break on new lines. I do
4 Answers
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What's the difference between RANK() and DENSE_RANK() functions in oracle?
...s.
As for nulls, it depends on the ORDER BY clause. Here is a simple test script you can play with to see what happens:
with q as (
select 10 deptno, 'rrr' empname, 10000.00 sal from dual union all
select 11, 'nnn', 20000.00 from dual union all
select 11, 'mmm', 5000.00 from dual union all
select ...
What are the relative strengths and weaknesses of Git, Mercurial, and Bazaar? [closed]
...f the distributed SCMs. Also, if you currently make heavy use of precommit script automation with SVN (ie. requiring unit tests to pass before a commit can proceed), you'll probably want to use a tool similar to PQM for automating merge requests to your shared branches.
SVK is a DSCM which uses Sub...
How to identify unused css definitions
...o check it didn't strip id's and classes with no style but are used as JavaScript selectors.
The below content is taken from http://unused-css.com/ so credit to them for recommending other solutions:
Latish Sehgal has written a windows application to find and remove unused CSS classes. I haven't te...
Why does sudo change the PATH?
...is is/is not compiled in.
It is by default in Gentoo
# ( From the build Script )
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ROOTPATH=$(cleanpath /bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin${ROOTPATH:+:${ROOTPATH}})
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econf --with-secure-path="${ROOTPATH}"
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How to check status of PostgreSQL server Mac OS X
...p; if you want to check and start postgres in one go (handy for automation scripts).
– Kate
Sep 30 '15 at 15:13
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Changes in import statement python3
...mport happens whenever you are importing a package relative to the current script/package.
Consider the following tree for example:
mypkg
├── base.py
└── derived.py
Now, your derived.py requires something from base.py. In Python 2, you could do it like this (in derived.py):
from bas...
How can I quantify difference between two images?
...on:
if __name__ == "__main__":
main()
Now you can put this all in a script and run against two images. If we compare image to itself, there is no difference:
$ python compare.py one.jpg one.jpg
Manhattan norm: 0.0 / per pixel: 0.0
Zero norm: 0 / per pixel: 0.0
If we blur the image and comp...
When to use static vs instantiated classes
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}
The only situation where I'd use (and I've used them to mimic the JavaScript prototype object in PHP 5.3) static members is when I know that the respective field will have the same value cross-instance. At that point you can use a static property and maybe a pair of static getter/setter methods...