BoundaryValueProblems
commented
6 years ago I had exactly the same problem using the python under ~/.julia/v0.6/Conda/deps/usr/bin, which is the default. In the previous version, e.g., v0.5.2, it worked without any tweak. Now, the only way I can use PyPlot is to rebuild PyPlot using the system wide version of python, e.g., /usr/bin/X11/python as:
ENV["PYTHON"]="/usr/bin/X11/python"
Pkg.build("PyPlot")Note however that before doing so, make sure that you installed matplotlib using the system wide python on a terminal:
$ python -mpip install -U pip
$ python -mpip install -U matplotlibSee the details at https://matplotlib.org/users/installing.html All these are quite cumbersome. I truly hope that we do not have to do this!! I had to do the above on my Linux machines and Windows machines. Somehow, I didn't have to do the same for my MacBook...
algorithmx
stevengj
Installed as instructed
Machine info XXX@XXX:~$ julia () | A fresh approach to technical computing () | () () | Documentation: https://docs.julialang.org | |_ | Type "?help" for help. | | | | | | |/ ` | | | | || | | | (| | | Version 0.6.1 (2017-10-24 22:15 UTC) / |_'|||_'_| | Official http://julialang.org/ release |/ | x86_64-pc-linux-gnu
First I opened the IJulia notebook $ using IJulia $ IJulia.notebook() then in the notebook I type $ using PyPlot and get the following error:
InitError: PyError (ccall(@pysym(:PyImport_ImportModule), PyPtr, (Cstring,), name)
The Python package matplotlib.pyplot could not be found by pyimport. Usually this means that you did not install matplotlib.pyplot in the Python version being used by PyCall.
PyCall is currently configured to use the Julia-specific Python distribution installed by the Conda.jl package. To install the matplotlib.pyplot module, you can use
pyimport_conda("matplotlib.pyplot", PKG), where PKG is the Anaconda package the contains the module matplotlib.pyplot, or alternatively you can use the Conda package directly (viausing Condafollowed byConda.addetcetera).Alternatively, if you want to use a different Python distribution on your system, such as a system-wide Python (as opposed to the Julia-specific Python), you can re-configure PyCall with that Python. As explained in the PyCall documentation, set ENV["PYTHON"] to the path/name of the python executable you want to use, run Pkg.build("PyCall"), and re-launch Julia.
) <type 'exceptions.ImportError'> ImportError("/lib/x86_64-linux-gnu/libz.so.1: version `ZLIB_1.2.9' not found (required by /home/yunlong/.julia/v0.6/Conda/deps/usr/lib/python2.7/site-packages/matplotlib/../../.././libpng16.so.16)",) File "/home/yunlong/.julia/v0.6/Conda/deps/usr/lib/python2.7/site-packages/matplotlib/pyplot.py", line 29, in
import matplotlib.colorbar
File "/home/yunlong/.julia/v0.6/Conda/deps/usr/lib/python2.7/site-packages/matplotlib/colorbar.py", line 36, in
import matplotlib.contour as contour
File "/home/yunlong/.julia/v0.6/Conda/deps/usr/lib/python2.7/site-packages/matplotlib/contour.py", line 21, in
import matplotlib.font_manager as font_manager
File "/home/yunlong/.julia/v0.6/Conda/deps/usr/lib/python2.7/site-packages/matplotlib/font_manager.py", line 58, in
from matplotlib import afm, cbook, ft2font, rcParams, get_cachedir
during initialization of module PyPlot
Stacktrace: [1] pyerr_check at /home/yunlong/.julia/v0.6/PyCall/src/exception.jl:56 [inlined] [2] pyerr_check at /home/yunlong/.julia/v0.6/PyCall/src/exception.jl:61 [inlined] [3] macro expansion at /home/yunlong/.julia/v0.6/PyCall/src/exception.jl:81 [inlined] [4] pyimport(::String) at /home/yunlong/.julia/v0.6/PyCall/src/PyCall.jl:374 [5] init() at /home/yunlong/.julia/v0.6/PyPlot/src/init.jl:184 [6] _include_from_serialized(::String) at ./loading.jl:157 [7] _require_from_serialized(::Int64, ::Symbol, ::String, ::Bool) at ./loading.jl:200 [8] _require_search_from_serialized(::Int64, ::Symbol, ::String, ::Bool) at ./loading.jl:236 [9] _require(::Symbol) at ./loading.jl:441 [10] require(::Symbol) at ./loading.jl:405 [11] include_string(::String, ::String) at ./loading.jl:522