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Flatten nested dictionaries, compressing keys

...iterating the dict by key/value, creating new keys for your new dictionary and creating the dictionary at final step. import collections def flatten(d, parent_key='', sep='_'): items = [] for k, v in d.items(): new_key = parent_key + sep + k if parent_key else k if isinstan...
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How could I use requests in asyncio?

... can use BaseEventLoop.run_in_executor to run a function in another thread and yield from it to get the result. For example: import asyncio import requests @asyncio.coroutine def main(): loop = asyncio.get_event_loop() future1 = loop.run_in_executor(None, requests.get, 'http://www.google.c...
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Why use make over a shell script?

Make seems to me simply a shell script with slightly easier handling of command line arguments. 5 Answers ...
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Pragma in define macro

...rgument except it can be used in macros (see section 6.10.9 of the c99 standard, or 16.9 of the c++0x final committee draft) For example, #define STRINGIFY(a) #a #define DEFINE_DELETE_OBJECT(type) \ void delete_ ## type ## _(int handle); \ void delet...
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Remove all the children DOM elements in div

... @Eugene: Could you say more about that? – Tom Anderson Aug 28 '11 at 15:39 7 @Tom: dojox.g...
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How do you reset the stored credentials in 'git credential-osxkeychain'?

I've followed the GitHub instructions for setting up my account, and I'm able to clone, but I'm unable to push remotely. 7 ...
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How to validate an e-mail address in swift?

... edited Dec 30 '19 at 7:17 Zandor Smith 34833 silver badges1717 bronze badges answered Aug 24 '14 at 11:20 ...
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Scrolling a flexbox with overflowing content

... I've spoken to Tab Atkins (author of the flexbox spec) about this, and this is what we came up with: HTML: <div class="content"> <div class="box"> <div class="column">Column 1</div> <div class="column">Column 2</div> <div c...
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Is there a “not in” operator in JavaScript for checking object properties?

...se statement just to use the else portion... Just negate your condition, and you'll get the else logic inside the if: if (!(id in tutorTimes)) { ... } share | improve this answer | ...
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Rails bundle install production only

I'm still new to rails/ruby/bundler and am a little confused. 2 Answers 2 ...