[Python] How to fix "E: Package 'libatlas-dev' has no installation candidate" While installing...

how do i fix this problem i gave

sudo apt-get install python-setuptools python-scipy libatlas-dev libatlas3-base


to install scipy for installing scikit learn and got an error like this

Reading package lists... Done
Building dependency tree
Reading state information... Done
Package libatlas-dev is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
However the following packages replace it:
libatlas-base-dev:i386 libatlas-base-dev

E: Package 'libatlas-dev' has no installation candidate


I have tried updating but nothing seems to work.

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