Кто-нибудь знает, как изменить backend из PyPlot с "TkAgg" на Qt5Agg в Юлии?
Я получил это предупреждение, когда я пытаюсь Using PyPlot в Юлии:
julia> using PyPlot
[ Info: Recompiling stale cache file /Users/tonyspc/.julia/compiled/v1.2/PyPlot/oatAj.ji for PyPlot [d330b81b-6aea-500a-939a-2ce795aea3ee]
┌ Warning: PyPlot is using tkagg backend, which is known to cause crashes on MacOS (#410); use the MPLBACKEND environment variable to request a different backend.
└ @ PyPlot ~/.julia/packages/PyPlot/4wzW1/src/init.jl:192
Я пытался использовать решение, опубликованное здесь: https://github.com/JuliaPy/PyPlot.jl/issues/454
Но оно не удалось:
julia> using PyCall
[ Info: Recompiling stale cache file /Users/tonyspc/.julia/compiled/v1.2/PyCall/GkzkC.ji for PyCall [438e738f-606a-5dbb-bf0a-cddfbfd45ab0]
julia> pyimport_conda("PyQt5", "pyqt")
ERROR: PyError (PyImport_ImportModule
The Python package PyQt5 could not be found by pyimport. Usually this means
that you did not install PyQt5 in the Python version being used by PyCall.
PyCall is currently configured to use the Python version at:
/System/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python
and you should use whatever mechanism you usually use (apt-get, pip, conda,
etcetera) to install the Python package containing the PyQt5 module.
One alternative is to re-configure PyCall to use a different Python
version on your system: set ENV["PYTHON"] to the path/name of the python
executable you want to use, run Pkg.build("PyCall"), and re-launch Julia.
Another alternative is to configure PyCall to use a Julia-specific Python
distribution via the Conda.jl package (which installs a private Anaconda
Python distribution), which has the advantage that packages can be installed
and kept up-to-date via Julia. As explained in the PyCall documentation,
set ENV["PYTHON"]="", run Pkg.build("PyCall"), and re-launch Julia. Then,
To install the PyQt5 module, you can use `pyimport_conda("PyQt5", PKG)`,
where PKG is the Anaconda package the contains the module PyQt5,
or alternatively you can use the Conda package directly (via
`using Conda` followed by `Conda.add` etcetera).
) <type 'exceptions.ImportError'>
ImportError('No module named PyQt5',)
Stacktrace:
[1] pyimport(::String) at /Users/tonyspc/.julia/packages/PyCall/ttONZ/src/PyCall.jl:544
[2] pyimport_conda(::String, ::String, ::String) at /Users/tonyspc/.julia/packages/PyCall/ttONZ/src/PyCall.jl:702
[3] pyimport_conda(::String, ::String) at /Users/tonyspc/.julia/packages/PyCall/ttONZ/src/PyCall.jl:701
[4] top-level scope at REPL[4]:1
Однако я уже установил PyQt5, используя brew install pyqt
И я не знаю, почему мой matplot library расположен в каталоге python2, а не в каталоге python3:
julia> pyimport("matplotlib").matplotlib_fname()
"/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/matplotlib/mpl-data/matplotlibrc"
У меня есть python2, который поставляется по умолчанию на моемMac и установлен python3 с использованием Homebrew
MacBook-Pro:~ tonyspc$ which python3
/usr/local/bin/python3
MacBook-Pro:~ tonyspc$ which python
/usr/bin/python
Должен ли я установить ENV["PYTHON"] на "/usr/local/bin/python3"?