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| @@ -0,0 +1,80 @@ | ||
| # Included from build.jl and ../test/test_build.jl | ||
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| using VersionParsing | ||
| import Conda, Libdl | ||
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| pyvar(python::AbstractString, mod::AbstractString, var::AbstractString) = chomp(read(pythonenv(`$python -c "import $mod; print($mod.$var)"`), String)) | ||
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| pyconfigvar(python::AbstractString, var::AbstractString) = pyvar(python, "distutils.sysconfig", "get_config_var('$var')") | ||
| pyconfigvar(python, var, default) = let v = pyconfigvar(python, var) | ||
| v == "None" ? default : v | ||
| end | ||
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| pysys(python::AbstractString, var::AbstractString) = pyvar(python, "sys", var) | ||
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| ######################################################################### | ||
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| # print out extra info to help with remote debugging | ||
| const PYCALL_DEBUG_BUILD = "yes" == get(ENV, "PYCALL_DEBUG_BUILD", "no") | ||
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| function exec_find_libpython(python::AbstractString, options) | ||
| # Do not inline `@__DIR__` into the backticks to expand correctly. | ||
| # See: https://github.com/JuliaLang/julia/issues/26323 | ||
| script = joinpath(@__DIR__, "find_libpython.py") | ||
| cmd = `$python $script $options` | ||
| if PYCALL_DEBUG_BUILD | ||
| cmd = `$cmd --verbose` | ||
| end | ||
| return readlines(pythonenv(cmd)) | ||
| end | ||
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| function show_dlopen_error(lib, e) | ||
| if PYCALL_DEBUG_BUILD | ||
| println(stderr, "dlopen($lib) ==> ", e) | ||
| # Using STDERR since find_libpython.py prints debugging | ||
| # messages to STDERR too. | ||
| end | ||
| end | ||
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| # return libpython name, libpython pointer | ||
| function find_libpython(python::AbstractString; _dlopen = Libdl.dlopen) | ||
| dlopen_flags = Libdl.RTLD_LAZY|Libdl.RTLD_DEEPBIND|Libdl.RTLD_GLOBAL | ||
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| libpaths = exec_find_libpython(python, `--list-all`) | ||
| for lib in libpaths | ||
| try | ||
| return (_dlopen(lib, dlopen_flags), lib) | ||
| catch e | ||
| show_dlopen_error(lib, e) | ||
| end | ||
| end | ||
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| # Try all candidate libpython names and let Libdl find the path. | ||
| # We do this *last* because the libpython in the system | ||
| # library path might be the wrong one if multiple python | ||
| # versions are installed (we prefer the one in LIBDIR): | ||
| libs = exec_find_libpython(python, `--candidate-names`) | ||
| for lib in libs | ||
| lib = splitext(lib)[1] | ||
| try | ||
| libpython = _dlopen(lib, dlopen_flags) | ||
| # Store the fullpath to libpython in deps.jl. This makes | ||
| # it easier for users to investigate Python setup | ||
| # PyCall.jl trying to use. It also helps PyJulia to | ||
| # compare libpython. | ||
| return (libpython, Libdl.dlpath(libpython)) | ||
| catch e | ||
| show_dlopen_error(lib, e) | ||
| end | ||
| end | ||
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| v = pyconfigvar(python, "VERSION", "unknown") | ||
| error(""" | ||
| Couldn't find libpython; check your PYTHON environment variable. | ||
| The python executable we tried was $python (= version $v). | ||
| Re-building with | ||
| ENV["PYCALL_DEBUG_BUILD"] = "yes" | ||
| may provide extra information for why it failed. | ||
| """) | ||
| end |
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| Original file line number | Diff line number | Diff line change |
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@@ -770,3 +770,4 @@ end | |
| include("test_pyfncall.jl") | ||
| include("testpybuffer.jl") | ||
| include("test_venv.jl") | ||
| include("test_build.jl") | ||
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| module TestPyCallBuild | ||
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| include(joinpath(dirname(@__FILE__), "..", "deps", "depsutils.jl")) | ||
| include(joinpath(dirname(@__FILE__), "..", "deps", "buildutils.jl")) | ||
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| using Test | ||
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| @testset "find_libpython" begin | ||
| for python in ["python", "python2", "python3"] | ||
| if Sys.which(python) === nothing | ||
| @info "$python not available; skipping test" | ||
| else | ||
| @test isfile(find_libpython(python)[2]) | ||
| end | ||
| end | ||
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| # Test the case `find_libpython.py` does not print anything. We | ||
| # use the command `true` to mimic this case. | ||
| if Sys.which("true") === nothing | ||
| @info "no `true` command; skipping test" | ||
| else | ||
| let err, msg | ||
| @test try | ||
| find_libpython("true") | ||
| false | ||
| catch err | ||
| err isa ErrorException | ||
| end | ||
| msg = sprint(showerror, err) | ||
| @test occursin("Couldn't find libpython", msg) | ||
| @test occursin("ENV[\"PYCALL_DEBUG_BUILD\"] = \"yes\"", msg) | ||
| end | ||
| end | ||
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| # Test the case `dlopen` failed to open the library. | ||
| let err, msg | ||
| @test try | ||
| find_libpython("python"; _dlopen = (_...) -> error("dummy")) | ||
| false | ||
| catch err | ||
| err isa ErrorException | ||
| end | ||
| msg = sprint(showerror, err) | ||
| @test occursin("Couldn't find libpython", msg) | ||
| @test occursin("ENV[\"PYCALL_DEBUG_BUILD\"] = \"yes\"", msg) | ||
| end | ||
| end | ||
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| end # module |