# Julia motivation: why weren't Numpy, Scipy, Numba, good enough?

**URL:** <https://discourse.julialang.org/t/julia-motivation-why-werent-numpy-scipy-numba-good-enough/2236>\
**Category:** Community\
**Tags:** history\
**Created:** [February 22, 2017, 3:34pm UTC](https://discourse.julialang.org/t/julia-motivation-why-werent-numpy-scipy-numba-good-enough/2236 "2017-02-22T15:34:33Z")\
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**Author:** ![Raf](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/raf/32/3383_2.png) [@Raf](https://discourse.julialang.org/u/Raf)\
**Post date:** [September 20, 2018, 5:28am UTC](https://discourse.julialang.org/t/julia-motivation-why-werent-numpy-scipy-numba-good-enough/2236/106 "2018-09-20T05:28:32Z")

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What are the problem packages? I have a couple of projects going with massive dependency trees and everything works fine now in 0.7/1.0

Edit: Oops I missed where you actually listed packages… but doesn’t Compose [work now](https://discourse.julialang.org/t/julia-1-0-support-just-landed-on-gadfly-master/14978)?

But yes It seems mamba and NMF havent been updated. Time to put in a pull request 🙂

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