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Argparse: Required argument 'y' if 'x' is present
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How about using parser.parse_known_args() method and then adding the --lport and --rport args as required args if --prox is present.
# just add --prox arg now
non_int = argparse.ArgumentParser(description="stackoverflow question",
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ExecutorService, how to wait for all tasks to finish
...l, so I just want to run a large number of jobs - one on each core. Right now my setup looks like this:
15 Answers
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jQuery convert line breaks to br (nl2br equivalent)
...dn't that regex mean if a line ends with ">" it wouldn't add the BR? I know in my HTML I use > but user generated content doesn't work so well with that...
– Dave Stein
Nov 8 '11 at 19:58
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How to copy part of an array to another array in C#?
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With named parameters that are available now, you would not need to document any of the 5 parameters.
– Hamish Grubijan
Aug 6 '12 at 16:47
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sed in-place flag that works both on Mac (BSD) and Linux
...oved from homebrew-core, more info in this answer. when installing gnu-sed now, the installation instructions specify that you need to add gnubin to your PATH: PATH="/usr/local/opt/gnu-sed/libexec/gnubin:$PATH"
– pgericson
Feb 13 '19 at 15:37
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How to run Conda?
...t .bash_profile (I downloaded it to my local desktop to do that, I do not know how to text edit a file from linux)
Then add this to .bash_profile:
PATH=$PATH:$HOME/anaconda/bin
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How to remove Firefox's dotted outline on BUTTONS as well as links?
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Yea it works for me too! Now how can it be done for selects ?
– 7wp
Feb 3 '10 at 19:54
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Actual examples for HATEOAS (REST-architecture) [closed]
...principle because it doesn't use custom media types. How would the client know how to manipulate (e.g. deserialize, parse, display) each resource if everything is application/xml? It would depend on some non-standard ways of passing this information, like documentation meant to be read by humans.
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How to check if a user is logged in (how to properly use user.is_authenticated)?
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Update for Django 1.10+:
is_authenticated is now an attribute in Django 1.10.
The method was removed in Django 2.0.
For Django 1.9 and older:
is_authenticated is a function. You should call it like
if request.user.is_authenticated():
# do something if the user is au...
Run git pull over all subdirectories [duplicate]
... alias in my .gitconfig: all = "!f() { ls | xargs -I{} git -C {} $1; }; f" Now I can do git all pull, git all "checkout master" etc.
– borisdiakur
Jul 13 '15 at 8:39
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