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How to obtain the number of CPUs/cores in Linux from the command line?

... Note that both of these will end up counting twice as many cores as actually exist if you're on a system with hyperthreading (e.g, P4, or Core i7). – duskwuff -inactive- Jun 26 '11 at 0:04 ...
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Efficiently updating database using SQLAlchemy ORM

...ngs in mind when using the ORM and plain SQL in the same transaction. Basically, from one side, ORM data modifications will only hit the database when you flush the changes from your session. From the other side, SQL data manipulation statements don't affect the objects that are in your session. So...
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How do I get Flask to run on port 80?

...roxy HTTP traffic through apache2 to Flask. This way, apache2 can handle all your static files (which it's very good at - much better than the debug server built into Flask) and act as a reverse proxy for your dynamic content, passing those requests to Flask. Here's a link to the official documen...
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Getting the names of all files in a directory with PHP

... Not all filenames have the form *.*: just use * instead. – jameshfisher Feb 24 '14 at 17:17 ...
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Can Powershell Run Commands in Parallel?

...o do some batch processing on a bunch of images and I'd like to do some parallel processing. Powershell seems to have some background processing options such as start-job, wait-job, etc, but the only good resource I found for doing parallel work was writing the text of a script out and running thos...
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How to implement the factory method pattern in C++ correctly

... First of all, there are cases when object construction is a task complex enough to justify its extraction to another class. I believe this point is incorrect. The complexity doesn't really matter. The relevance is what does. I...
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Length of generator output [duplicate]

... Fibonacci numbers. You can get as many Fibonacci numbers as you want by calling next(). If you really need to know the number of items there are, then you can't iterate through them linearly one time anyway, so just use a different data structure such as a regular list. ...
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Regular expression for letters, numbers and - _

... To actually cover your pattern, i.e, valid file names according to your rules, I think that you need a little more. Note this doesn't match legal file names from a system perspective. That would be system dependent and more libera...
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Empty set literal?

... Actually, set literals have been backported to Python 2.7, so they are not only available strictly in Python 3. – Jim Brissom May 25 '11 at 20:56 ...
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How do I add custom field to Python log format string?

...LoggerAdapter so you don't have to pass the extra info with every logging call: import logging extra = {'app_name':'Super App'} logger = logging.getLogger(__name__) syslog = logging.StreamHandler() formatter = logging.Formatter('%(asctime)s %(app_name)s : %(message)s') syslog.setFormatter(formatte...