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Releasing memory in Python

...t requires calling PyInt_ClearFreeList(). This can be called indirectly by doing a full gc.collect. Try it like this, and tell me what you get. Here's the link for psutil.Process.memory_info. import os import gc import psutil proc = psutil.Process(os.getpid()) gc.collect() mem0 = proc.get_memory...
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How do you join on the same table, twice, in mysql?

I have 2 tables. One (domains) has domain ids, and domain names (dom_id, dom_url). 3 Answers ...
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String formatting: % vs. .format vs. string literal

... will throw a TypeError. To guarantee that it always prints, you'd need to do "hi there %s" % (name,) # supply the single argument as a single-item tuple which is just ugly. .format doesn't have those issues. Also in the second example you gave, the .format example is much cleaner looking. Why...
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When NOT to use Cassandra?

...mple, MongoDB is fit for use cases where your system demands a schema-less document store. HBase might be fit for search engines, analyzing log data, or any place where scanning huge, two-dimensional join-less tables is a requirement. Redis is built to provide In-Memory search for varieties of data ...
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Git pull without checkout?

... But I have set up a development server that several people work on, so I don't want to have to switch branches when I do it. If I want to update an existing branch on the dev server from the github repository we all use, what would be the right way to do that? If I run the command 'git pull gi...
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Difference between rake db:migrate db:reset and db:schema:load

...migrate and rake db:reset is pretty clear in my head. The thing which I don't understand is how rake db:schema:load different from the former two. ...
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Using logging in multiple modules

...name__) near the top of the module, and then in other code in the module do e.g. logger.debug('My message with %s', 'variable data') If you need to subdivide logging activity inside a module, use e.g. loggerA = logging.getLogger(__name__ + '.A') loggerB = logging.getLogger(__name__ + '.B') a...
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How do you send a HEAD HTTP request in Python 2?

What I'm trying to do here is get the headers of a given URL so I can determine the MIME type. I want to be able to see if http://somedomain/foo/ will return an HTML document or a JPEG image for example. Thus, I need to figure out how to send a HEAD request so that I can read the MIME type without...
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How to source virtualenv activate in a Bash script

How do you create a Bash script to activate a Python virtualenv? 9 Answers 9 ...
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How do i find out what all symbols are exported from a shared object?

I have a shared object(dll). How do i find out what all symbols are exported from that? 9 Answers ...