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How does SIGINT relate to the other termination signals such as SIGTERM, SIGQUIT and SIGKILL?
...n be assigned to generate these signals (depending on the terminal control settings). The default action for SIGINT is the same sort of process termination as the default action for SIGTERM and the unchangeable action for SIGKILL; the default action for SIGQUIT is also process termination, but addi...
How do I get the object if it exists, or None if it does not exist?
... python is to wrap it in a try catch:
try:
go = SomeModel.objects.get(foo='bar')
except SomeModel.DoesNotExist:
go = None
What I did do, is to subclass models.Manager, create a safe_get like the code above and use that manager for my models. That way you can write: SomeModel.objects.safe_...
Is there a standard keyboard shortcut to build the current project in Visual Studio?
...rrent project works in VS2015 with resharper installed and keyboard scheme set to VS. It also works VS2017 without resharper.
– Kalyan
Oct 11 '17 at 15:29
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Make header and footer files to be included in multiple html pages
I want to create common header and footer pages that are included on several html pages.
11 Answers
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How to implement a Map with multiple keys? [duplicate]
...1=A and K2=B, then you store value "1" with K1=C and K2=D. Now you try to set value = "2" where K1=A. How do you know which K2 to use? Logan, your solution works, but you might also want to keep a Map<K1, K2> as well. This is probably getting a bit theoretical though, as it doesn't look li...
Lists: Count vs Count() [duplicate]
Given a list, which method is preferred to determine the number of elements inside?
4 Answers
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How to print color in console using System.out.println?
...ne constants like these for the colors:
public static final String ANSI_RESET = "\u001B[0m";
public static final String ANSI_BLACK = "\u001B[30m";
public static final String ANSI_RED = "\u001B[31m";
public static final String ANSI_GREEN = "\u001B[32m";
public static final String ANSI_YELLOW = "\u00...
What is the difference between partitioning and bucketing a table in Hive ?
...file system in memory.
Bucketing is another technique for decomposing data sets into more manageable parts. For example, suppose a table using date as the top-level partition and employee_id as the second-level partition leads to too many small partitions. Instead, if we bucket the employee table an...
How to call methods dynamically based on their name? [duplicate]
...call a method dynamically when its name is contained in a string variable? For example:
5 Answers
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How do I write output in same place on the console?
I am new to python and am writing some scripts to automate downloading files from FTP servers, etc. I want to show the progress of the download, but I want it to stay in the same position, such as:
...