[conda] update or install in one command?

[Jacob Vanderplas]

Hi all,
Is there any single conda command that will update a package if it exists,
or install the package if it doesn't?

I'm thinking of a conda equivalent to ``pip install -U package``

Having such a command would simplify installation instructions in
situations where the user might have an older version of the package
already around.

I understand that ``conda install`` followed by ``conda update`` would work
for all users, but in my experience every extra step in installation
instructions roughly doubles the number of users who will contact the
mailing list with installation issues. A single install + update command
like the one pip provides would be very useful.

Thanks,
Jake

Jake VanderPlas
Senior Data Science Fellow
Director of Open Software
University of Washington eScience Institute

[Ariel Balter]

In the mean time,

conda update --all -y && conda install XXXX -y

You could make an alias.

Post by Jacob Vanderplas
Hi all,
Is there any single conda command that will update a package if it exists,
or install the package if it doesn't?
I'm thinking of a conda equivalent to ``pip install -U package``
Having such a command would simplify installation instructions in
situations where the user might have an older version of the package
already around.
I understand that ``conda install`` followed by ``conda update`` would
work for all users, but in my experience every extra step in installation
instructions roughly doubles the number of users who will contact the
mailing list with installation issues. A single install + update command
like the one pip provides would be very useful.
Thanks,
Jake
Jake VanderPlas
Senior Data Science Fellow
Director of Open Software
University of Washington eScience Institute