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How do I get the directory that a program is running from?

... When I see code that looks at /proc part of me dies a little. All the world is not Linux, and even on that one platform /proc should be considered subject to change from version to version, arch to arch, etc. – asveikau Jan 28 '10 at 0:29 ...
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Python Requests and persistent sessions

...= s.get('https://localhost/profile_data.json', ...) #cookies sent automatically! #do whatever, s will keep your cookies intact :) For more about sessions: https://requests.kennethreitz.org/en/master/user/advanced/#session-objects ...
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Mocking python function based on input arguments

...f side_effect is a function then whatever that function returns is what calls to the mock return. The side_effect function is called with the same arguments as the mock. This allows you to vary the return value of the call dynamically, based on the input: >>> def side_effect(value): ...
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How do I get my Python program to sleep for 50 milliseconds?

...rity, CPU load avg, available memory, and a plethora of other factors make all calls imprecise. The busier the system is, the higher the imprecision. – David Jan 28 '19 at 18:44 2...
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An error occurred while installing pg (0.17.1), and Bundler cannot continue

I just installed Rails 4.0.2 and when creating a new app, in the bundle stage I get: 16 Answers ...
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Greenlet Vs. Threads

... Greenlets provide concurrency but not parallelism. Concurrency is when code can run independently of other code. Parallelism is the execution of concurrent code simultaneously. Parallelism is particularly useful when there's a lot of work to be done in userspace, an...
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How to do relative imports in Python?

... the module were a top level module, regardless of where the module is actually located on the file system. In Python 2.6, they're adding the ability to reference modules relative to the main module. PEP 366 describes the change. Update: According to Nick Coghlan, the recommended alternative is ...
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How to replace spaces in file names using a bash script

...whole question is about micro-optimizing more or less. Isn't it fun, after all? ;-) – Michael Krelin - hacker Apr 26 '10 at 18:33 17 ...
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What are file descriptors, explained in simple terms?

...you open a network socket, it is also represented by an integer and it is called Socket Descriptor. I hope you understand. share | improve this answer | follow ...
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How to Batch Rename Files in a macOS Terminal?

...g). If you find yourself batch-renaming files frequently, consider installing a specialized tool such as the Perl-based rename utility. On macOS you can install it using popular package manager Homebrew as follows: brew install rename Here's the equivalent of the command at the top using rena...