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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...
Adding a directory to the PATH environment variable in Windows
... It is theoretically possible, no practical CRT implementation I know of actually does this. Explorer does.
– Hans Passant
Jun 21 '16 at 16:35
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Why do function pointer definitions work with any number of ampersands '&' or asterisks '*'?
...a function pointer however will get the address of the pointer (because it now has a separate purpose), whereas funcp and *funcp will be identical
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How do you create a dropdownlist from an enum in ASP.NET MVC?
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I know I'm late to the party on this, but thought you might find this variant useful, as this one also allows you to use descriptive strings rather than enumeration constants in the drop down. To do this, decorate each enumerati...
API Keys vs HTTP Authentication vs OAuth in a RESTful API
... @TomDoe Hi Tom - Yes that makes sense. You probably want to use OAuth2 now. If your server is in Python (Django or Flask) take a look at github.com/omab/python-social-auth
– Sid
Aug 18 '15 at 19:43
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What's the use of Jade or Handlebars when writing AngularJs apps
... page is completely unrealistic. taking the source of the page I'm viewing now converts 2320 lines to 1580 ( Using html2jade ). Thats more than 700 lines of time wasted for whoever wrote all the stackoverflow templates
– Philipp Gayret
Feb 5 '14 at 18:11
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Can I have onScrollListener for a ScrollView?
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Every instance of View calls getViewTreeObserver(). Now when holding an instance of ViewTreeObserver, you can add an OnScrollChangedListener() to it using the method addOnScrollChangedListener().
You can see more information about this class here.
It lets you be aware of eve...
git --git-dir not working as expected
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You have to define the working dir as well. Confusing I know but it's a flexibility thing.
git --git-dir=/mycode/.git --work-tree=/mycode status
You can read a little more here
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Pull request vs Merge request
...ed me of the example when I made the small report to let other colleagues know how git works.
– Ravi Yadav
Jul 18 '19 at 5:31
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How is “=default” different from “{}” for default constructor and destructor?
I originally posted this as a question only about destructors, but now I'm adding consideration of the default constructor. Here's the original question:
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