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How can I obtain the element-wise logical NOT of a pandas Series?
...ctually tested the tilde as it was mentioned in the documentation, but it didn't perform the same as np.invert :S
– root
Apr 14 '13 at 13:11
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How to use > in an xargs command?
... must always be a single completely separate argument to the command to avoid code injection bugs. What you need to do, is this:
xargs -I{} sh -c 'grep ABC "$1" > "$1.out"' -- {}
Applies to xargs as well as find.
By the way, never use xargs without the -0 option (unless for very rare and con...
REST response code for invalid data
...r conditional requests when using last-modified date and ETags.
403 - Forbidden is used when the server wishes to prevent access to a resource.
The only other choice that is possible is 422 - Unprocessable entity.
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Insert Unicode character into JavaScript
...ga = 'Ω' in JavaScript, but only if your JavaScript code is:
inside an event attribute, as in onclick="var Omega = '&#937';
alert(Omega)" or
in a script element inside an XHTML (or XHTML + XML) document
served with an XML content type.
In these cases, the code will be first (bef...
How to select rows with one or more nulls from a pandas DataFrame without listing columns explicitly
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As an aside - you shouldn't be naming your anonymous (lambda) functions. Always use a def statement instead of an assignment statement that binds a lambda expression directly to an identifier.
– ron_g
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How do I add files without dots in them (all extension-less files) to the gitignore file?
...want to version:
git add -f -- myFile
Note that with git 2.9.x/2.10 (mid 2016?), it might be possible to re-include a file if a parent directory of that file is excluded if there is no wildcard in the path re-included.
Nguyễn Thái Ngọc Duy (pclouds) is trying to add this feature:
commit...
'typeid' versus 'typeof' in C++
I am wondering what the difference is between typeid and typeof in C++. Here's what I know:
6 Answers
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If vs. Switch Speed
...after 5-6 elements it'll generate a jump table.
– antiduh
Feb 27 at 6:31
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How to expire session due to inactivity in Django?
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Here's an idea... Expire the session on browser close with the SESSION_EXPIRE_AT_BROWSER_CLOSE setting. Then set a timestamp in the session on every request like so.
request.session['last_activity'] = datetime.now()
and add a middle...
Can I serve multiple clients using just Flask app.run() as standalone?
...reads if you know that you will be using Flask 1.0 or later.
That being said, Werkzeug's serving.run_simple wraps the standard library's wsgiref package - and that package contains a reference implementation of WSGI, not a production-ready web server. If you are going to use Flask in production (a...