# Can't install numpy using Pycall in Ubuntu

**URL:** <https://discourse.julialang.org/t/cant-install-numpy-using-pycall-in-ubuntu/44878>\
**Category:** General Usage\
**Tags:** pycall\
**Created:** [August 13, 2020, 2:49pm UTC](https://discourse.julialang.org/t/cant-install-numpy-using-pycall-in-ubuntu/44878 "2020-08-13T14:49:52Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Riya\_Singh](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/riya_singh/32/15086_2.png) [@Riya\_Singh](https://discourse.julialang.org/u/Riya_Singh)\
**Post date:** [August 13, 2020, 2:49pm UTC](https://discourse.julialang.org/t/cant-install-numpy-using-pycall-in-ubuntu/44878/1 "2020-08-13T14:49:52Z")

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![Screenshot from 2020-08-13 20-17-14](https://global.discourse-cdn.com/julialang/original/3X/3/3/33e71882257f9965e5a107de2bb072537ffd4a5f.png)

I can’t seem to understand the problem here can someone please help

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**Author:** ![dmbates](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/dmbates/32/44_2.png) [@dmbates](https://discourse.julialang.org/u/dmbates)\
**Post date:** [August 13, 2020, 2:53pm UTC](https://discourse.julialang.org/t/cant-install-numpy-using-pycall-in-ubuntu/44878/2 "2020-08-13T14:53:30Z")

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The solution is in the error message. Run `Pkg.build("PyCall")`. This needs to be done after you add the package but does not need to be repeated until you add a new version.

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**Author:** ![Riya\_Singh](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/riya_singh/32/15086_2.png) [@Riya\_Singh](https://discourse.julialang.org/u/Riya_Singh)\
**Post date:** [August 13, 2020, 2:57pm UTC](https://discourse.julialang.org/t/cant-install-numpy-using-pycall-in-ubuntu/44878/3 "2020-08-13T14:57:38Z")

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Pkg.bulid(“PyCall”)  
ERROR: UndefVarError: bulid not defined  
Stacktrace:  
[1] getproperty(::Module, ::Symbol) at ./sysimg.jl:13  
[2] top-level scope at none:0  
I am getting this error after build

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<div class="post-metadata">

**Author:** ![dmbates](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/dmbates/32/44_2.png) [@dmbates](https://discourse.julialang.org/u/dmbates)\
**Post date:** [August 13, 2020, 2:59pm UTC](https://discourse.julialang.org/t/cant-install-numpy-using-pycall-in-ubuntu/44878/4 "2020-08-13T14:59:41Z")

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You wrote `Pkg.bulid` when it should be `Pkg.build`.

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<div class="post-metadata">

**Author:** ![Riya\_Singh](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/riya_singh/32/15086_2.png) [@Riya\_Singh](https://discourse.julialang.org/u/Riya_Singh)\
**Post date:** [August 13, 2020, 3:14pm UTC](https://discourse.julialang.org/t/cant-install-numpy-using-pycall-in-ubuntu/44878/5 "2020-08-13T15:14:23Z")

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Building Conda ─→ `~/.julia/packages/Conda/3rPhK/deps/build.log`  
Building PyCall → `~/.julia/packages/PyCall/zqDXB/deps/build.log`  
┌ Error: Error building `PyCall`:  
│ % Total % Received % Xferd Average Speed Time Time Time Current  
│ Dload Upload Total Spent Left Speed  
0 0 0 0 0 0 0 0 --:–:-- --:–:-- --:–:-- 0  
100 62.6M 100 62.6M 0 0 403k 0 0:02:39 0:02:39 --:–:-- 398k  
│ PREFIX=/home/riya/.julia/conda/3  
│ reinstalling: python-3.7.1-h0371630\_7 …  
│ /home/riya/.julia/conda/3/installer.sh: 373: /home/riya/.julia/conda/3/installer.sh: /home/riya/.julia/conda/3/pkgs/python-3.7.1-h0371630\_7/bin/python: not found  
│ ┌ Info: No system-wide Python was found; got the following error:  
│ │ ErrorException(“python3 is 64-bit, but Julia is 32-bit”)  
│ └ using the Python distribution in the Conda package  
│ [ Info: Downloading miniconda installer …  
│ [ Info: Installing miniconda …  
│ ERROR: LoadError: failed process: Process(`/home/riya/.julia/conda/3/installer.sh -b -f -p /home/riya/.julia/conda/3`, ProcessExited(1)) [1]  
│ Stacktrace:  
│ [1] error(::String, ::Base.Process, ::String, ::Int64, ::String) at ./error.jl:42  
│ [2] pipeline\_error at ./process.jl:705 [inlined]  
│ [3] #run#505(::Bool, ::Function, ::Cmd) at ./process.jl:663  
│ [4] run at ./process.jl:661 [inlined]  
│ [5] \_install\_conda(::String, ::Bool) at /home/riya/.julia/packages/Conda/3rPhK/src/Conda.jl:169  
│ [6] \_install\_conda(::String) at /home/riya/.julia/packages/Conda/3rPhK/src/Conda.jl:155  
│ [7] runconda(::Cmd, ::String) at /home/riya/.julia/packages/Conda/3rPhK/src/Conda.jl:112  
│ [8] #add#1(::String, ::Function, ::String, ::String) at /home/riya/.julia/packages/Conda/3rPhK/src/Conda.jl:188  
│ [9] add at /home/riya/.julia/packages/Conda/3rPhK/src/Conda.jl:187 [inlined] (repeats 2 times)  
│ [10] top-level scope at /home/riya/.julia/packages/PyCall/zqDXB/deps/build.jl:84  
│ [11] include at ./boot.jl:317 [inlined]  
│ [12] include\_relative(::Module, ::String) at ./loading.jl:1044  
│ [13] include(::Module, ::String) at ./sysimg.jl:29  
│ [14] include(::String) at ./client.jl:392  
│ [15] top-level scope at none:0  
│ in expression starting at /home/riya/.julia/packages/PyCall/zqDXB/deps/build.jl:43  
└ @ Pkg.Operations /buildworker/worker/package\_linux32/build/usr/share/julia/stdlib/v1.0/Pkg/src/Operations.jl:1096

I think there is some problem with python packages