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How to remove a key from a Python dictionary?
...y', None)
This will return my_dict[key] if key exists in the dictionary, and None otherwise. If the second parameter is not specified (ie. my_dict.pop('key')) and key does not exist, a KeyError is raised.
To delete a key that is guaranteed to exist, you can also use
del my_dict['key']
This wil...
multiprocessing: How do I share a dict among multiple processes?
...rogram that creates several processes that work on a join-able queue, Q , and may eventually manipulate a global dictionary D to store results. (so each child process may use D to store its result and also see what results the other child processes are producing)
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How to list all functions in a Python module?
I have a python module installed on my system and I'd like to be able to see what functions/classes/methods are available in it.
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How do Google+ +1 widgets break out of their iframe?
...me. This JavaScript widget is running within the context of your website and therefore is not constrained by the Origin Inheritance Rules for iframes. Therefore this JavaScript widget can set whatever DOM events it wants on the parent site even though it appears to be just a simple iframe.
Anot...
How to check if character is a letter in Javascript?
...
You can still use a regex and just add more detail as you need it: str.match(/[A-Z|a-z|ü|é]/i); //etc
– Eli
Jun 22 '15 at 21:54
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How to resume Fragment from BackStack if exists
...asier since it shouldn't require keeping track of a number that may change and reinforces the "unique back stack entry" logic.
Since you want only one back stack entry per Fragment, make the back state name the Fragment's class name (via getClass().getName()). Then when replacing a Fragment, use th...
C++ Build Systems - What to use? [closed]
...looking at starting a new project in C++ - just in my own time initially - and I'm investigating the build systems that are available. It would appear that the answer is "Many, and they're all awful".
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Visual Studio popup: “the operation could not be completed”
...rSolutionFolder\.vs\YourSolutionName\v15\.suo
The .vs folder is hidden, and the .suo files is a file without name, with just the .suo extension.
Explanation
The .suo file contain various information like the opened files list, and some preferences that are not saved in the solution file ...
BigDecimal setScale and round
...lluded to but not directly addressed is the difference between "precision" and "scale" and how they are used in the two statements. "precision" is the total number of significant digits in a number. "scale" is the number of digits to the right of the decimal point.
The MathContext constructor onl...
How to check for valid email address? [duplicate]
...e sure it is a proper style email address? Been searching since last night and everybody that has answered peoples questions regarding this topic also seems to have problems with it if it is a subdomained email address.
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