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Argparse: Required argument 'y' if 'x' is present
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No, there isn't any option in argparse to make mutually inclusive sets of options.
The simplest way to deal with this would be:
if args.prox and (args.lport is None or args.rport is None):
parser.error("--prox requires --lport and --rport.")
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Generate a random point within a circle (uniformly)
...triangle ABC, where |AB|=|BC|? Let's make this easier by extending to a parallelogram ABCD. It's easy to generate points uniformly in ABCD. We uniformly pick a random point X on AB and Y on BC and choose Z such that XBYZ is a parallelogram. To get a uniformly chosen point in the original triangle we...
Difference between Static and final?
...he initialization of any instance variables.
A single copy to be shared by all instances of the class.
A static variable can be accessed directly by the class name and doesn’t need any object.
Syntax: Class.variable
Static method
It is a method which belongs to the class and not to the objec...
Is optimisation level -O3 dangerous in g++?
...n undefined behavior, due to relying more strictly on the rules, and especially corner cases, of the language(s).
As a personal note, I am running production software in the financial sector for many years now with -O3 and have not yet encountered a bug that would not have been there if I would hav...
AutoMapper: “Ignore the rest”?
Is there a way to tell AutoMapper to ignore all of the properties except the ones which are mapped explicitly?
17 Answers
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bind event only once
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Be careful, because this unbinds ALL click events, and it is not always wanted behaviour. For example, when you bind something to document, you want to unbind only that one event, not all of them.
– Mārtiņš Briedis
J...
Uninstalling Android ADT
...is seems like a trivial task, but I can't find an option to cleanly de-install the ADT from my Eclipse installation.
Of course, I could just delete the folder of the SDK, but this just throws errors when starting up Eclipse the next time. The reason I'm asking is because my old ADT keeps throwing a ...
'Specified condition “$(PackageAsSingleFile)” evaluates to “” instead of a boolean?
... solution to this? Restarting works, but I keep getting this error occasionally..
– Pbirkoff
Jan 29 '14 at 13:27
4
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HAProxy redirecting http to https (ssl)
...lancing and only want my site to support https. Thus, I'd like to redirect all requests on port 80 to port 443.
15 Answers...
Changing all files' extensions in a folder with one command on Windows
...ropriate extensions. It will change from XXX to YYY. If you want to change all extensions, just use the wildcard again:
ren *.* *.YYY
One way to make this work recursively is with the FOR command. It can be used with the /R option to recursively apply a command to matching files. For example:
fo...