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Python argparse mutual exclusive group

...ee why the first two arguments are compatible and the last one isn't. So now I run parser.parse_args() and check it's content: args = parser().parse_args() print args.aggregation if args.aggregation and (args.query or args.fields): print "-a and -q|-f are mutually exclusive ..." sys.exit...
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When should I use @classmethod and when def method(self)?

...e one: I like the answer being split up into how - why. As far as i got it now @classmethod allows to access the function without the need for an instance. This is exactly what i was looking for, thank you. – marue May 14 '12 at 16:04 ...
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What is the 'page lifecycle' of an ASP.NET MVC page, compared to ASP.NET WebForms?

...ove me to come back to MVC. I'd looked at it briefly and dismissed it (for now at least). playing with JQuery and trying to just find things in the DOM was getting too much of a pain so i thought i'd try to come back to MVC and learn more – Simon_Weaver Jan 20 ...
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Post-increment and pre-increment within a 'for' loop produce same output [duplicate]

...ocesses. And that's why I ask the question in the first place: I want to know how they approach a problem, and how they proceed when I cast doubt on the way their world works. At this point, most candidates realize their error and find the correct answer. But I had one who insisted his original a...
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PHP 5: const vs static

...s 10 echo ClassName::MY_CONST; // returns 5 ClassName::$my_var = 20; // now equals 20 ClassName::MY_CONST = 20; // error! won't work. Public, protected, and private are irrelevant in terms of consts (which are always public); they are only useful for class variables, including static variable....
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Comparison of CI Servers? [closed]

...gree that SO is already pretty full of comparisons of CI servers. I don't know about Teamcity and CIFactory, but as far as CC(.net) and Hudson go, the choice is pretty clear nowadays; here's my take on it: stackoverflow.com/questions/604385/…. (Never mind the Java emphasis in that question; Hudson...
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Git stash uncached: how to put away all unstaged changes?

...age "WIP" # -u option so you also stash untracked files $ git stash -u # now un-commit your WIP commit: $ git reset --soft HEAD^ At this point, you'll have a stash of your unstaged changes and will only have your staged changes present in your working copy. ...
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How can I clear the SQL Server query cache?

...elped me. Not sure if this is a permanent solution, but it's fixing it for now. OPTION (OPTIMIZE FOR UNKNOWN) Then your query will be like this select * from Table where Col = 'someval' OPTION (OPTIMIZE FOR UNKNOWN) sha...
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compareTo() vs. equals()

...o() == 0 does not necessarily imply equality in all cases, even though I know it does for String 's) to me. 21 Answers ...
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Where is JAVA_HOME on macOS Mojave (10.14) to Lion (10.7)?

... Good to know. I have to say im not too thrilled with the feature list for Lion. There doesnt seem to much there in the way of enhancements for my usage... – prodigitalson Jul 6 '11 at 2:29 ...