Cannot use PyPlot after conda update

[fish830617]

I use anaconda to install jupyter ect. on my ubuntu.
I just installed julias 0.4.X few days ago and there was no problem using PyPlot.
However, after I update my conda packages today, PyPlot cannot beused;

Here's the command I used to update my packages:
conda update conda
conda update anaconda

Now, in julia, everytime I call "using PyPlot",
it seems that it cannot find the matplotlib packages;
Julia keeps telling me to install the latest (.15?) one.
But I can import matplotlib in my python code normally......

Julia is really fascinating, I really enjoy its performances.
Can you help solving this problem?

[stevengj]

Try Pkg.build("PyCall") to make sure PyCall's configuration is up to date.

What error message do you get if you type using PyCall; pyimport("matplotlib").

[fish830617]

Below is the error message I got after Pkg.build("PyCall") and then using PyCall; pyimport("matplotlib")

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ERROR: PyError (:PyImport_ImportModule) <class 'ImportError'>
ImportError('/home/chiayufang/anaconda3/lib/python3.4/site-packages/numpy/linalg/lapack_lite.cpython-34m.so: undefined symbol: zgelsd_',)
File "/home/chiayufang/anaconda3/lib/python3.4/site-packages/matplotlib/init.py", line 122, in
from matplotlib.cbook import is_string_like, mplDeprecation, dedent, get_label
File "/home/chiayufang/anaconda3/lib/python3.4/site-packages/matplotlib/cbook.py", line 32, in
import numpy as np
File "/home/chiayufang/anaconda3/lib/python3.4/site-packages/numpy/init.py", line 180, in
from . import add_newdocs
File "/home/chiayufang/anaconda3/lib/python3.4/site-packages/numpy/add_newdocs.py", line 13, in
from numpy.lib import add_newdoc
File "/home/chiayufang/anaconda3/lib/python3.4/site-packages/numpy/lib/init.py", line 18, in
from .polynomial import *
File "/home/chiayufang/anaconda3/lib/python3.4/site-packages/numpy/lib/polynomial.py", line 20, in
from numpy.linalg import eigvals, lstsq, inv
File "/home/chiayufang/anaconda3/lib/python3.4/site-packages/numpy/linalg/init.py", line 51, in
from .linalg import *
File "/home/chiayufang/anaconda3/lib/python3.4/site-packages/numpy/linalg/linalg.py", line 29, in
from numpy.linalg import lapack_lite, _umath_linalg

[inlined code] from /home/chiayufang/.julia/v0.4/PyCall/src/exception.jl:81
in pyimport at /home/chiayufang/.julia/v0.4/PyCall/src/PyCall.jl:302

---

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And below is the error message I got after direct using PyPlot

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ERROR: InitError: Failed to pyimport("matplotlib"): PyPlot will not work until you have a functioning matplotlib module.

For automated Matplotlib installation, try configuring PyCall to use the Conda Python distribution within Julia. Relaunch Julia and run:
ENV["PYTHON"]=""
Pkg.build("PyCall")
using PyPlot

pyimport exception was: PyError (:PyImport_ImportModule) <class 'ImportError'>
ImportError('/home/chiayufang/anaconda3/lib/python3.4/site-packages/numpy/linalg/lapack_lite.cpython-34m.so: undefined symbol: zgelsd_',)
File "/home/chiayufang/anaconda3/lib/python3.4/site-packages/matplotlib/init.py", line 122, in
from matplotlib.cbook import is_string_like, mplDeprecation, dedent, get_label
File "/home/chiayufang/anaconda3/lib/python3.4/site-packages/matplotlib/cbook.py", line 32, in
import numpy as np
File "/home/chiayufang/anaconda3/lib/python3.4/site-packages/numpy/init.py", line 180, in
from . import add_newdocs
File "/home/chiayufang/anaconda3/lib/python3.4/site-packages/numpy/add_newdocs.py", line 13, in
from numpy.lib import add_newdoc
File "/home/chiayufang/anaconda3/lib/python3.4/site-packages/numpy/lib/init.py", line 18, in
from .polynomial import *
File "/home/chiayufang/anaconda3/lib/python3.4/site-packages/numpy/lib/polynomial.py", line 20, in
from numpy.linalg import eigvals, lstsq, inv
File "/home/chiayufang/anaconda3/lib/python3.4/site-packages/numpy/linalg/init.py", line 51, in
from .linalg import *
File "/home/chiayufang/anaconda3/lib/python3.4/site-packages/numpy/linalg/linalg.py", line 29, in
from numpy.linalg import lapack_lite, _umath_linalg

in init at /home/chiayufang/.julia/v0.4/PyPlot/src/PyPlot.jl:229
in _require_from_serialized at loading.jl:84
in require at ./loading.jl:251
during initialization of module PyPlot

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But I am sure that matplotlib is installed, since after conda update matplotlib I got

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All requested packages already installed.
packages in environment at /home/chiayufang/anaconda3:

matplotlib 1.5.0 np110py34_0

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Also I can import and plot with matplotlib in python 3 as usual.
I don't understand why....

Hope these information are useful to you and wish this problem can be fixed soon!

[stevengj]

Duplicate of JuliaPy/PyCall.jl#65.

Should be fixed by the latest Julia, but you may have to delete some old openblas libraries from previous Julia installs.