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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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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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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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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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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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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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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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Running python script inside ipython

Is it possible to run a python script (not module) from inside ipython without indicating its path? I tried to set PYTHONPATH but it seems to work only for modules. I would like to execute ...
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Detecting a mobile browser

... @RichardLovejoy when building sites, the ipad is generally not considered a mobile. – Michael Zaporozhets Mar 28 '13 at 11:14 43 ...
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Running Bash commands in Python

... are commonly overlooked. Prefer subprocess.run() over subprocess.check_call() and friends over subprocess.call() over subprocess.Popen() over os.system() over os.popen() Understand and probably use text=True, aka universal_newlines=True. Understand the meaning of shell=True or shell=False and how...