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What are dictionary view objects?

...faster to obtain, as it does not have to copy any data (keys or values) in order to be created. share | improve this answer | follow | ...
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“User interaction is not allowed” trying to sign an OSX app using codesign

..., too. Just open keychain app, right click on your keychain (login, system etc.) and click on something that matches 'change settings for <your_keychain>' best. – rubybeginner Apr 14 '16 at 10:18 ...
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When is localStorage cleared?

...ing query strings, hidden form fields, flash based local shared objects, etc. Each with their own set of problems related to security, ease of use, size restrictions etc. So up until now we have been using pretty bad ways of storing data on the user’s end. We need a better way, which is wh...
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Why does git perform fast-forward merges by default?

...-lived branches. To me, a short-lived branch is one that I create in order to make a certain operation easier (rebasing, likely, or quick patching and testing), and then immediately delete once I'm done. That means it likely should be absorbed into the topic branch it forked from, and the to...
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Why is creating a new process more expensive on Windows than Linux?

...eateProcess' in Windows and having it load the exe image, associated dlls, etc. In the fork case the OS can use 'copy-on-write' semantics for the memory pages associated with both new processes to ensure that each one gets their own copy of the pages they subsequently modify. ...
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Reading specific lines only

...ked above: >>> import linecache >>> linecache.getline('/etc/passwd', 4) 'sys:x:3:3:sys:/dev:/bin/sh\n' Change the 4 to your desired line number, and you're on. Note that 4 would bring the fifth line as the count is zero-based. If the file might be very large, and cause problems...
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String formatting in Python 3

...ument (using named arguments instead of positional ones, accessing fields, etc) and many format options as well (padding the number, using thousands separators, showing sign or not, etc). Some other examples: "({goals} goals, ${penalties})".format(goals=2, penalties=4) "({goals} goals, ${penalties}...
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JavaScript ternary operator example with functions

...e if (something_else) { //40 more lines here } else if (another_one) /etc, etc { ... Less good: this > that ? testFucntion() ? thirdFunction() ? imlost() : whathappuh() : lostinsyntax() : thisisprobablybrokennow() ? //I'm lost in my own (awful) example by now. //Not complete... or for...
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How to REALLY show logs of renamed files with git?

...o -- gitster -- in commit 26effb8, 13 Apr 2016) diffcore: fix iteration order of identical files during rename detection If the two paths 'dir/A/file' and 'dir/B/file' have identical content and the parent directory is renamed, e.g. 'git mv dir other-dir', then diffcore reports the follow...
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It is more efficient to use if-return-return or if-else-return?

...sing a switch construct or for Python, enumerating a dict/using a callable/etc.). Therefore almost all if-else-return are cases of guard clauses and those are always testable (mock the tested expression) without the else. – cowbert Mar 28 '18 at 3:22 ...