# Does Python 3.11 improve the performance of compatible imported python packages in Julia? **URL:** \ **Category:** Specific Domains\ **Tags:** pycall, python\ **Created:** [November 7, 2022, 7:38pm UTC](https://discourse.julialang.org/t/does-python-3-11-improve-the-performance-of-compatible-imported-python-packages-in-julia/89903 "2022-11-07T19:38:21Z")\ **Posts on this page:** 9\ **Page:** 1

**Author:** ![Shayan](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/shayan/32/33025_2.png) [@Shayan](https://discourse.julialang.org/u/Shayan)\ **Post date:** [November 7, 2022, 7:38pm UTC](https://discourse.julialang.org/t/does-python-3-11-improve-the-performance-of-compatible-imported-python-packages-in-julia/89903/1 "2022-11-07T19:38:21Z")

Scikit-Learn recently released wheels suitable for Python3.11. Now I wonder if Python3.11 improves the Python packages’ performance in Julia. `PyCall.jl` uses a specific python version, and one can install any installable package using it and import it to the environment; since they claim that Python3.11 is somewhat improved I want to know if this improvement can effect performance of the imported python packages. ---

**Author:** ![stevengj](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/stevengj/32/71_2.png) [@stevengj](https://discourse.julialang.org/u/stevengj)\ **Post date:** [November 7, 2022, 7:52pm UTC](https://discourse.julialang.org/t/does-python-3-11-improve-the-performance-of-compatible-imported-python-packages-in-julia/89903/2 "2022-11-07T19:52:36Z")

> [@Shayan](#): > > since they claim that Python3.11 is somewhat improved I want to know if this improvement can effect performance of the imported python packages. PyCall is just calling `libpython` directly to run Python code, so the performance should be essentially identical to what you get from `python`. ---

**Author:** ![JUL1A](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/jul1a/32/47432_2.png) [@JUL1A](https://discourse.julialang.org/u/JUL1A)\ **Post date:** [November 7, 2022, 8:56pm UTC](https://discourse.julialang.org/t/does-python-3-11-improve-the-performance-of-compatible-imported-python-packages-in-julia/89903/3 "2022-11-07T20:56:35Z")

> [@stevengj](#): > > so the performance should be essentially identical to what you get from `python`. So this means **utilizing Python3.11 in julia should be at least slightly better than utilizing any other version.** How one can use Python3.11 in Julia? ---

**Author:** ![Shayan](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/shayan/32/33025_2.png) [@Shayan](https://discourse.julialang.org/u/Shayan)\ **Post date:** [November 7, 2022, 9:00pm UTC](https://discourse.julialang.org/t/does-python-3-11-improve-the-performance-of-compatible-imported-python-packages-in-julia/89903/4 "2022-11-07T21:00:24Z")

Thanks. How can I utilize Python3.11 in Julia? For the sake of using Python packages in Julia. ---

**Author:** ![stevengj](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/stevengj/32/71_2.png) [@stevengj](https://discourse.julialang.org/u/stevengj)\ **Post date:** [November 7, 2022, 9:36pm UTC](https://discourse.julialang.org/t/does-python-3-11-improve-the-performance-of-compatible-imported-python-packages-in-julia/89903/5 "2022-11-07T21:36:35Z")

See [PyCall: Specifying the Python version](https://github.com/JuliaPy/PyCall.jl#specifying-the-python-version). ---

**Author:** ![Shayan](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/shayan/32/33025_2.png) [@Shayan](https://discourse.julialang.org/u/Shayan)\ **Post date:** [November 7, 2022, 9:49pm UTC](https://discourse.julialang.org/t/does-python-3-11-improve-the-performance-of-compatible-imported-python-packages-in-julia/89903/6 "2022-11-07T21:49:44Z")

I tried to replicate this via executable python in my Python3.11 Conda environment. But I faced an error. Should I install a standalone Python3.11 on my machine? ---

**Author:** ![stevengj](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/stevengj/32/71_2.png) [@stevengj](https://discourse.julialang.org/u/stevengj)\ **Post date:** [November 7, 2022, 9:54pm UTC](https://discourse.julialang.org/t/does-python-3-11-improve-the-performance-of-compatible-imported-python-packages-in-julia/89903/7 "2022-11-07T21:54:37Z")

If you can install Python 3.11 in Conda then you should be able to use it from Julia. Hard to say more without knowing what you mean by “I faced an error”. ---

**Author:** ![Shayan](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/shayan/32/33025_2.png) [@Shayan](https://discourse.julialang.org/u/Shayan)\ **Post date:** [November 7, 2022, 10:08pm UTC](https://discourse.julialang.org/t/does-python-3-11-improve-the-performance-of-compatible-imported-python-packages-in-julia/89903/8 "2022-11-07T22:08:09Z")

```julia julia> ENV["PYTHON"] = "C:/Users/Shayan/Anaconda/\envs/3.11/python.exe" "C:/Users/Shayan/Anaconda/\envs/3.11/python.exe" julia> using Pkg julia> Pkg.build("PyCall") Building Conda ─→ `C:\Users\Shayan\.julia\scratchspaces\44cfe95a-1eb2-52ea-b672-e2afdf69b78f\6e47d11ea2776bc5627421d59cdcc1296c058071\build.log` Building PyCall → `C:\Users\Shayan\.julia\scratchspaces\44cfe95a-1eb2-52ea-b672-e2afdf69b78f\53b8b07b721b77144a0fbbbc2675222ebf40a02d\build.log` ERROR: Error building `PyCall`, showing the last 100 of log: - pycosat==0.6.4=py310h8d17308_1 - pycparser==2.21=pyhd8ed1ab_0 - pyopenssl==22.1.0=pyhd8ed1ab_0 - pysocks==1.7.1=pyh0701188_6 - python==3.10.6=hcf16a7b_0_cpython - python_abi==3.10=2_cp310 - requests==2.28.1=pyhd8ed1ab_1 - ruamel_yaml==0.15.80=py310h8d17308_1008 - setuptools==65.5.0=pyhd8ed1ab_0 - tk==8.6.12=h8ffe710_0 - toolz==0.12.0=pyhd8ed1ab_0 - tqdm==4.64.1=pyhd8ed1ab_0 - tzdata==2022e=h191b570_0 - ucrt==10.0.22621.0=h57928b3_0 - urllib3==1.26.11=pyhd8ed1ab_0 - vc==14.3=h3d8a991_9 - vs2015_runtime==14.32.31332=h1d6e394_9 - wheel==0.37.1=pyhd8ed1ab_0 - win_inet_pton==1.1.0=pyhd8ed1ab_6 - xz==5.2.6=h8d14728_0 - yaml==0.2.5=h8ffe710_2 The following NEW packages will be INSTALLED: brotlipy conda-forge/win-64::brotlipy-0.7.0-py310h8d17308_1005 bzip2 conda-forge/win-64::bzip2-1.0.8-h8ffe710_4 ca-certificates conda-forge/win-64::ca-certificates-2022.9.24-h5b45459_0 certifi conda-forge/noarch::certifi-2022.9.24-pyhd8ed1ab_0 cffi conda-forge/win-64::cffi-1.15.1-py310h628cb3f_2 charset-normalizer conda-forge/noarch::charset-normalizer-2.1.1-pyhd8ed1ab_0 colorama conda-forge/noarch::colorama-0.4.6-pyhd8ed1ab_0 conda conda-forge/win-64::conda-22.9.0-py310h5588dad_1 conda-package-han~ conda-forge/win-64::conda-package-handling-1.9.0-py310h635b8f1_1 cryptography conda-forge/win-64::cryptography-38.0.2-py310h6e82f81_2 idna conda-forge/noarch::idna-3.4-pyhd8ed1ab_0 libffi conda-forge/win-64::libffi-3.4.2-h8ffe710_5 libsqlite conda-forge/win-64::libsqlite-3.39.4-hcfcfb64_0 libzlib conda-forge/win-64::libzlib-1.2.13-hcfcfb64_4 menuinst conda-forge/win-64::menuinst-1.4.19-py310h5588dad_1 miniforge_console~ conda-forge/win-64::miniforge_console_shortcut-1.0-h57928b3_0 openssl conda-forge/win-64::openssl-3.0.5-hcfcfb64_2 pip conda-forge/noarch::pip-22.3-pyhd8ed1ab_0 pycosat conda-forge/win-64::pycosat-0.6.4-py310h8d17308_1 pycparser conda-forge/noarch::pycparser-2.21-pyhd8ed1ab_0 pyopenssl conda-forge/noarch::pyopenssl-22.1.0-pyhd8ed1ab_0 pysocks conda-forge/noarch::pysocks-1.7.1-pyh0701188_6 python conda-forge/win-64::python-3.10.6-hcf16a7b_0_cpython python_abi conda-forge/win-64::python_abi-3.10-2_cp310 requests conda-forge/noarch::requests-2.28.1-pyhd8ed1ab_1 ruamel_yaml conda-forge/win-64::ruamel_yaml-0.15.80-py310h8d17308_1008 setuptools conda-forge/noarch::setuptools-65.5.0-pyhd8ed1ab_0 tk conda-forge/win-64::tk-8.6.12-h8ffe710_0 toolz conda-forge/noarch::toolz-0.12.0-pyhd8ed1ab_0 tqdm conda-forge/noarch::tqdm-4.64.1-pyhd8ed1ab_0 tzdata conda-forge/noarch::tzdata-2022e-h191b570_0 ucrt conda-forge/win-64::ucrt-10.0.22621.0-h57928b3_0 urllib3 conda-forge/noarch::urllib3-1.26.11-pyhd8ed1ab_0 vc conda-forge/win-64::vc-14.3-h3d8a991_9 vs2015_runtime conda-forge/win-64::vs2015_runtime-14.32.31332-h1d6e394_9 wheel conda-forge/noarch::wheel-0.37.1-pyhd8ed1ab_0 win_inet_pton conda-forge/noarch::win_inet_pton-1.1.0-pyhd8ed1ab_6 xz conda-forge/win-64::xz-5.2.6-h8d14728_0 yaml conda-forge/win-64::yaml-0.2.5-h8ffe710_2 Preparing transaction: ...working... done Executing transaction: ...working... done ┌ Info: No system-wide Python was found; got the following error: │ Base.IOError("could not spawn setenv(`C:/Users/Shayan/Anaconda/envs/3.11/python.exe -c \"import distutils.sysconfig; print(distutils.sysconfig.get_config_var('VERSION'))\"`,[\"PATH=C:\\\\Users\\\\Shayan\\\\Anaconda3\\\\condabin;C:\\\\Users\\\\Shayan\\\\AppData\\\\Local\\\\Programs\\\\Python\\\\Python311\\\\Scripts;C:\\\\Users\\\\Shayan\\\\AppData\\\\Local\\\\Programs\\\\Python\\\\Python311;C:\\\\Users\\\\Shayan\\\\AppData\\\\Local\\\\Programs\\\\Python\\\\Python310-32\\\\Scripts\\\\;C:\\\\Users\\\\Shayan\\\\AppData\\\\Local\\\\Programs\\\\Python\\\\Python310-32\\\\;C:\\\\Users\\\\Shayan\\\\AppData\\\\Roaming\\\\Python\\\\Python37\\\\Scripts;C:\\\\Users\\\\Shayan\\\\AppData\\\\Roaming\\\\Python\\\\Python37;C:\\\\WINDOWS\\\\system32;C:\\\\WINDOWS;C:\\\\WINDOWS\\\\System32\\\\Wbem;C:\\\\WINDOWS\\\\System32\\\\WindowsPowerShell\\\\v1.0\\\\;C:\\\\WINDOWS\\\\System32\\\\OpenSSH\\\\;C:\\\\Program Files\\\\dotnet\\\\;C:\\\\MinGW\\\\bin;C:\\\\Program Files\\\\Git\\\\cmd;C:\\\\Users\\\\Shayan\\\\AppData\\\\Local\\\\Programs\\\\Python\\\\Python311\\\\Scripts\\\\;C:\\\\Users\\\\Shayan\\\\AppData\\\\Local\\\\Programs\\\\Python\\\\Python311\\\\;C:\\\\Users\\\\Shayan\\\\AppData\\\\Local\\\\Programs\\\\Python\\\\Python310\\\\Scripts\\\\;C:\\\\Users\\\\Shayan\\\\AppData\\\\Local\\\\Programs\\\\Python\\\\Python310\\\\;C:\\\\Users\\\\Shayan\\\\AppData\\\\Local\\\\Programs\\\\Python\\\\Python37\\\\Scripts\\\\;C:\\\\Users\\\\Shayan\\\\AppData\\\\Local\\\\Programs\\\\Python\\\\Python37\\\\;C:\\\\Users\\\\Shayan\\\\AppData\\\\Local\\\\Programs\\\\Python\\\\Python37-32\\\\Scripts\\\\;C:\\\\Users\\\\Shayan\\\\AppData\\\\Local\\\\Programs\\\\Python\\\\Python37-32\\\\;C:\\\\Users\\\\Shayan\\\\AppData\\\\Local\\\\Microsoft\\\\WindowsApps;C:\\\\Users\\\\Shayan\\\\AppData\\\\Local\\\\Programs\\\\Microsoft VS Code\\\\bin;C:\\\\Users\\\\Shayan\\\\AppData\\\\Local\\\\GitHubDesktop\\\\bin;C:\\\\Users\\\\Shayan\\\\AppData\\\\Local\\\\Programs\\\\MiKTeX\\\\miktex\\\\bin\\\\x64\\\\;C:\\\\Users\\\\Shayan\\\\AppData\\\\Local\\\\Pandoc\\\\;C:\\\\Users\\\\Shayan\\\\Anaconda3;C:\\\\Users\\\\Shayan\\\\Anaconda3\\\\Scripts;C:\\\\Users\\\\Shayan\\\\Anaconda3\\\\Library\\\\bin\", \"USERDOMAIN_ROAMINGPROFILE=SHAYANSNOTEBOOK\", \"WSLENV=WT_SESSION::WT_PROFILE_ID\", \"HOMEPATH=\\\\Users\\\\Shayan\", \"PATHEXT=.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC\", \"SYSTEMROOT=C:\\\\WINDOWS\", \"APPDATA=C:\\\\Users\\\\Shayan\\\\AppData\\\\Roaming\", \"PSMODULEPATH=%ProgramFiles%\\\\WindowsPowerShell\\\\Modules;C:\\\\WINDOWS\\\\system32\\\\WindowsPowerShell\\\\v1.0\\\\Modules\", \"COMMONPROGRAMW6432=C:\\\\Program Files\\\\Common Files\", \"PROGRAMDATA=C:\\\\ProgramData\", \"PUBLIC=C:\\\\Users\\\\Public\", \"USERDOMAIN=SHAYANSNOTEBOOK\", \"OS=Windows_NT\", \"PROCESSOR_REVISION=3c03\", \"TMP=C:\\\\Users\\\\Shayan\\\\AppData\\\\Local\\\\Temp\", \"COMSPEC=C:\\\\WINDOWS\\\\system32\\\\cmd.exe\", \"WT_PROFILE_ID={0caa0dad-35be-5f56-a8ff-afceeeaa6101}\", \"ALLUSERSPROFILE=C:\\\\ProgramData\", \"COMPUTERNAME=SHAYANSNOTEBOOK\", \"USERNAME=Shayan\", \"=E:=E:\\\\AUT\\\\Thesis\\\\MyWork\", \"ONEDRIVECONSUMER=C:\\\\Users\\\\Shayan\\\\OneDrive\", \"USERPROFILE=C:\\\\Users\\\\Shayan\", \"PROCESSOR_LEVEL=6\", \"=C:=C:\\\\Users\\\\Shayan\\\\.julia\\\\packages\\\\PyCall\\\\ygXW2\\\\deps\", \"CONDA_SHLVL=0\", \"PROGRAMW6432=C:\\\\Program Files\", \"CONDA_EXE=C:\\\\Users\\\\Shayan\\\\Anaconda3\\\\Scripts\\\\conda.exe\", \"TEMP=C:\\\\Users\\\\Shayan\\\\AppData\\\\Local\\\\Temp\", \"HOMEDRIVE=C:\", \"PYTHONIOENCODING=UTF-8\", \"PYTHON=C:/Users/Shayan/Anaconda/envs/3.11/python.exe\", \"WINDIR=C:\\\\WINDOWS\", \"LOCALAPPDATA=C:\\\\Users\\\\Shayan\\\\AppData\\\\Local\", \"PROCESSOR_IDENTIFIER=Intel64 Family 6 Model 60 Stepping 3, GenuineIntel\", \"NUMBER_OF_PROCESSORS=8\", \"PROMPT=\\\$P\\\$G\", \"COMMONPROGRAMFILES(X86)=C:\\\\Program Files (x86)\\\\Common Files\", \"PY=C:\\\\Users\\\\Shayan\\\\AppData\\\\Roaming\\\\Python\\\\Python37\\\\Scripts\", \"COMMONPROGRAMFILES=C:\\\\Program Files\\\\Common Files\", \"ONEDRIVE=C:\\\\Users\\\\Shayan\\\\OneDrive\", \"WT_SESSION=9fee51fe-e622-4f2e-a641-4f8dfd742037\", \"PROGRAMFILES(X86)=C:\\\\Program Files (x86)\", \"PROGRAMFILES=C:\\\\Program Files\", \"=EXITCODE=00000001\", \"OMP_NUM_THREADS=2\", \"LOGONSERVER=\\\\\\\\SHAYANSNOTEBOOK\", \"DRIVERDATA=C:\\\\Windows\\\\System32\\\\Drivers\\\\DriverData\", \"JULIA_LOAD_PATH=@;C:\\\\Users\\\\Shayan\\\\AppData\\\\Local\\\\Temp\\\\jl_FJel6n\", \"SYSTEMDRIVE=C:\", \"CONDA_BAT=C:\\\\Users\\\\Shayan\\\\Anaconda3\\\\condabin\\\\conda.bat\", \"PROCESSOR_ARCHITECTURE=AMD64\"]): no such file or directory (ENOENT)", -4058) └ using the Python distribution in the Conda package [ Info: Downloading miniconda installer ... [ Info: Installing miniconda ... [ Info: Running `conda install -y numpy` in root environment ERROR: LoadError: IOError: could not spawn setenv(`'C:/Users/Shayan/Anaconda3/envs/3.11\Scripts\conda.exe' install -y numpy`,["PATH=C:/Users/Shayan/Anaconda3/envs/3.11\\Library\\bin;C:\\Users\\Shayan\\Anaconda3\\condabin;C:\\Users\\Shayan\\AppData\\Local\\Programs\\Python\\Python311\\Scripts;C:\\Users\\Shayan\\AppData\\Local\\Programs\\Python\\Python311;C:\\Users\\Shayan\\AppData\\Local\\Programs\\Python\\Python310-32\\Scripts\\;C:\\Users\\Shayan\\AppData\\Local\\Programs\\Python\\Python310-32\\;C:\\Users\\Shayan\\AppData\\Roaming\\Python\\Python37\\Scripts;C:\\Users\\Shayan\\AppData\\Roaming\\Python\\Python37;C:\\WINDOWS\\system32;C:\\WINDOWS;C:\\WINDOWS\\System32\\Wbem;C:\\WINDOWS\\System32\\WindowsPowerShell\\v1.0\\;C:\\WINDOWS\\System32\\OpenSSH\\;C:\\Program Files\\dotnet\\;C:\\MinGW\\bin;C:\\Program Files\\Git\\cmd;C:\\Users\\Shayan\\AppData\\Local\\Programs\\Python\\Python311\\Scripts\\;C:\\Users\\Shayan\\AppData\\Local\\Programs\\Python\\Python311\\;C:\\Users\\Shayan\\AppData\\Local\\Programs\\Python\\Python310\\Scripts\\;C:\\Users\\Shayan\\AppData\\Local\\Programs\\Python\\Python310\\;C:\\Users\\Shayan\\AppData\\Local\\Programs\\Python\\Python37\\Scripts\\;C:\\Users\\Shayan\\AppData\\Local\\Programs\\Python\\Python37\\;C:\\Users\\Shayan\\AppData\\Local\\Programs\\Python\\Python37-32\\Scripts\\;C:\\Users\\Shayan\\AppData\\Local\\Programs\\Python\\Python37-32\\;C:\\Users\\Shayan\\AppData\\Local\\Microsoft\\WindowsApps;C:\\Users\\Shayan\\AppData\\Local\\Programs\\Microsoft VS Code\\bin;C:\\Users\\Shayan\\AppData\\Local\\GitHubDesktop\\bin;C:\\Users\\Shayan\\AppData\\Local\\Programs\\MiKTeX\\miktex\\bin\\x64\\;C:\\Users\\Shayan\\AppData\\Local\\Pandoc\\;C:\\Users\\Shayan\\Anaconda3;C:\\Users\\Shayan\\Anaconda3\\Scripts;C:\\Users\\Shayan\\Anaconda3\\Library\\bin", "USERDOMAIN_ROAMINGPROFILE=SHAYANSNOTEBOOK", "WSLENV=WT_SESSION::WT_PROFILE_ID", "HOMEPATH=\\Users\\Shayan", "PATHEXT=.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC", "SYSTEMROOT=C:\\WINDOWS", "APPDATA=C:\\Users\\Shayan\\AppData\\Roaming", "PSMODULEPATH=%ProgramFiles%\\WindowsPowerShell\\Modules;C:\\WINDOWS\\system32\\WindowsPowerShell\\v1.0\\Modules", "COMMONPROGRAMW6432=C:\\Program Files\\Common Files", "PROGRAMDATA=C:\\ProgramData", "PUBLIC=C:\\Users\\Public", "USERDOMAIN=SHAYANSNOTEBOOK", "OS=Windows_NT", "PROCESSOR_REVISION=3c03", "TMP=C:\\Users\\Shayan\\AppData\\Local\\Temp", "COMSPEC=C:\\WINDOWS\\system32\\cmd.exe", "WT_PROFILE_ID={0caa0dad-35be-5f56-a8ff-afceeeaa6101}", "ALLUSERSPROFILE=C:\\ProgramData", "COMPUTERNAME=SHAYANSNOTEBOOK", "USERNAME=Shayan", "=E:=E:\\AUT\\Thesis\\MyWork", "CONDARC=C:/Users/Shayan/Anaconda3/envs/3.11\\condarc-julia.yml", "ONEDRIVECONSUMER=C:\\Users\\Shayan\\OneDrive", "USERPROFILE=C:\\Users\\Shayan", "PROCESSOR_LEVEL=6", "=C:=C:\\Users\\Shayan\\.julia\\packages\\PyCall\\ygXW2\\deps", "PROGRAMW6432=C:\\Program Files", "TEMP=C:\\Users\\Shayan\\AppData\\Local\\Temp", "HOMEDRIVE=C:", "PYTHONIOENCODING=UTF-8", "WINDIR=C:\\WINDOWS", "LOCALAPPDATA=C:\\Users\\Shayan\\AppData\\Local", "PROCESSOR_IDENTIFIER=Intel64 Family 6 Model 60 Stepping 3, GenuineIntel", "NUMBER_OF_PROCESSORS=8", "PROMPT=\$P\$G", "COMMONPROGRAMFILES(X86)=C:\\Program Files (x86)\\Common Files", "PY=C:\\Users\\Shayan\\AppData\\Roaming\\Python\\Python37\\Scripts", "COMMONPROGRAMFILES=C:\\Program Files\\Common Files", "ONEDRIVE=C:\\Users\\Shayan\\OneDrive", "WT_SESSION=9fee51fe-e622-4f2e-a641-4f8dfd742037", "PROGRAMFILES(X86)=C:\\Program Files (x86)", "PROGRAMFILES=C:\\Program Files", "=EXITCODE=00000001", "OMP_NUM_THREADS=2", "LOGONSERVER=\\\\SHAYANSNOTEBOOK", "DRIVERDATA=C:\\Windows\\System32\\Drivers\\DriverData", "CONDA_PREFIX=C:/Users/Shayan/Anaconda3/envs/3.11", "JULIA_LOAD_PATH=@;C:\\Users\\Shayan\\AppData\\Local\\Temp\\jl_FJel6n", "SYSTEMDRIVE=C:", "PROCESSOR_ARCHITECTURE=AMD64"]): no such file or directory (ENOENT) Stacktrace: [1] _spawn_primitive(file::String, cmd::Cmd, stdio::Vector{Union{RawFD, Base.Libc.WindowsRawSocket, IO}}) @ Base .\process.jl:128 [2] #725 @ .\process.jl:139 [inlined] [3] setup_stdios(f::Base.var"#725#726"{Cmd}, stdios::Vector{Union{RawFD, Base.Libc.WindowsRawSocket, IO}}) @ Base .\process.jl:223 [4] _spawn @ .\process.jl:138 [inlined] [5] run(::Cmd; wait::Bool) @ Base .\process.jl:479 [6] run @ .\process.jl:477 [inlined] [7] runconda(args::Cmd, env::String) @ Conda C:\Users\Shayan\.julia\packages\Conda\x2UxR\src\Conda.jl:128 [8] add(pkg::String, env::String; channel::String) @ Conda C:\Users\Shayan\.julia\packages\Conda\x2UxR\src\Conda.jl:222 [9] add (repeats 2 times) @ C:\Users\Shayan\.julia\packages\Conda\x2UxR\src\Conda.jl:220 [inlined] [10] top-level scope @ C:\Users\Shayan\.julia\packages\PyCall\ygXW2\deps\build.jl:79 [11] include(fname::String) @ Base.MainInclude .\client.jl:476 [12] top-level scope @ none:5 in expression starting at C:\Users\Shayan\.julia\packages\PyCall\ygXW2\deps\build.jl:43 Full log at C:\Users\Shayan\.julia\scratchspaces\44cfe95a-1eb2-52ea-b672-e2afdf69b78f\53b8b07b721b77144a0fbbbc2675222ebf40a02d\build.log Stacktrace: [1] pkgerror(msg::String) @ Pkg.Types C:\Users\Shayan\.julia\juliaup\julia-1.8.2+0.x64\share\julia\stdlib\v1.8\Pkg\src\Types.jl:67 [2] (::Pkg.Operations.var"#66#73"{Bool, Pkg.Types.Context, String, Pkg.Types.PackageSpec, String})() @ Pkg.Operations C:\Users\Shayan\.julia\juliaup\julia-1.8.2+0.x64\share\julia\stdlib\v1.8\Pkg\src\Operations.jl:1060 [3] withenv(::Pkg.Operations.var"#66#73"{Bool, Pkg.Types.Context, String, Pkg.Types.PackageSpec, String}, ::Pair{String, String}, ::Vararg{Pair{String}}) @ Base .\env.jl:172 [4] (::Pkg.Operations.var"#107#112"{String, Bool, Bool, Bool, Pkg.Operations.var"#66#73"{Bool, Pkg.Types.Context, String, Pkg.Types.PackageSpec, String}, Pkg.Types.PackageSpec})() @ Pkg.Operations C:\Users\Shayan\.julia\juliaup\julia-1.8.2+0.x64\share\julia\stdlib\v1.8\Pkg\src\Operations.jl:1619 [5] with_temp_env(fn::Pkg.Operations.var"#107#112"{String, Bool, Bool, Bool, Pkg.Operations.var"#66#73"{Bool, Pkg.Types.Context, String, Pkg.Types.PackageSpec, String}, Pkg.Types.PackageSpec}, temp_env::String) @ Pkg.Operations C:\Users\Shayan\.julia\juliaup\julia-1.8.2+0.x64\share\julia\stdlib\v1.8\Pkg\src\Operations.jl:1493 [6] (::Pkg.Operations.var"#105#110"{Dict{String, Any}, Bool, Bool, Bool, Pkg.Operations.var"#66#73"{Bool, Pkg.Types.Context, String, Pkg.Types.PackageSpec, String}, Pkg.Types.Context, Pkg.Types.PackageSpec, String, Pkg.Types.Project, String})(tmp::String) @ Pkg.Operations C:\Users\Shayan\.julia\juliaup\julia-1.8.2+0.x64\share\julia\stdlib\v1.8\Pkg\src\Operations.jl:1582 [7] mktempdir(fn::Pkg.Operations.var"#105#110"{Dict{String, Any}, Bool, Bool, Bool, Pkg.Operations.var"#66#73"{Bool, Pkg.Types.Context, String, Pkg.Types.PackageSpec, String}, Pkg.Types.Context, Pkg.Types.PackageSpec, String, Pkg.Types.Project, String}, parent::String; prefix::String) @ Base.Filesystem .\file.jl:764 [8] mktempdir(fn::Function, parent::String) (repeats 2 times) @ Base.Filesystem .\file.jl:760 [9] sandbox(fn::Function, ctx::Pkg.Types.Context, target::Pkg.Types.PackageSpec, target_path::String, sandbox_path::String, sandbox_project_override::Pkg.Types.Project; preferences::Dict{String, Any}, force_latest_compatible_version::Bool, allow_earlier_backwards_compatible_versions::Bool, allow_reresolve::Bool) @ Pkg.Operations C:\Users\Shayan\.julia\juliaup\julia-1.8.2+0.x64\share\julia\stdlib\v1.8\Pkg\src\Operations.jl:1540 [10] build_versions(ctx::Pkg.Types.Context, uuids::Set{Base.UUID}; verbose::Bool) @ Pkg.Operations C:\Users\Shayan\.julia\juliaup\julia-1.8.2+0.x64\share\julia\stdlib\v1.8\Pkg\src\Operations.jl:1041 [11] build(ctx::Pkg.Types.Context, uuids::Set{Base.UUID}, verbose::Bool) @ Pkg.Operations C:\Users\Shayan\.julia\juliaup\julia-1.8.2+0.x64\share\julia\stdlib\v1.8\Pkg\src\Operations.jl:898 [12] build(ctx::Pkg.Types.Context, pkgs::Vector{Pkg.Types.PackageSpec}; verbose::Bool, kwargs::Base.Pairs{Symbol, Base.TTY, Tuple{Symbol}, NamedTuple{(:io,), Tuple{Base.TTY}}}) @ Pkg.API C:\Users\Shayan\.julia\juliaup\julia-1.8.2+0.x64\share\julia\stdlib\v1.8\Pkg\src\API.jl:1029 [13] build(pkgs::Vector{Pkg.Types.PackageSpec}; io::Base.TTY, kwargs::Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}}) @ Pkg.API C:\Users\Shayan\.julia\juliaup\julia-1.8.2+0.x64\share\julia\stdlib\v1.8\Pkg\src\API.jl:156 [14] build(pkgs::Vector{Pkg.Types.PackageSpec}) @ Pkg.API C:\Users\Shayan\.julia\juliaup\julia-1.8.2+0.x64\share\julia\stdlib\v1.8\Pkg\src\API.jl:145 [15] #build#99 @ C:\Users\Shayan\.julia\juliaup\julia-1.8.2+0.x64\share\julia\stdlib\v1.8\Pkg\src\API.jl:144 [inlined] [16] build @ C:\Users\Shayan\.julia\juliaup\julia-1.8.2+0.x64\share\julia\stdlib\v1.8\Pkg\src\API.jl:144 [inlined] [17] #build#98 @ C:\Users\Shayan\.julia\juliaup\julia-1.8.2+0.x64\share\julia\stdlib\v1.8\Pkg\src\API.jl:143 [inlined] [18] build(pkg::String) @ Pkg.API C:\Users\Shayan\.julia\juliaup\julia-1.8.2+0.x64\share\julia\stdlib\v1.8\Pkg\src\API.jl:143 [19] top-level scope @ REPL[10]:1 ``` Then I tried it on a standalone Python installation: ```julia julia> ENV["PYTHON"] = raw"C:\Users\Shayan\AppData\Local\Programs\Python\Python311\python.exe" "C:\\Users\\Shayan\\AppData\\Local\\Programs\\Python\\Python311\\python.exe" julia> Pkg.build("PyCall") Building Conda ─→ `C:\Users\Shayan\.julia\scratchspaces\44cfe95a-1eb2-52ea-b672-e2afdf69b78f\6e47d11ea2776bc5627421d59cdcc1296c058071\build.log` Building PyCall → `C:\Users\Shayan\.julia\scratchspaces\44cfe95a-1eb2-52ea-b672-e2afdf69b78f\53b8b07b721b77144a0fbbbc2675222ebf40a02d\build.log` Precompiling project... ✓ PyCall 3 dependencies successfully precompiled in 17 seconds. 476 already precompiled. 1 skipped during auto due to previous errors. 1 dependency precompiled but a different version is currently loaded. Restart julia to access the new version ``` ---

**Author:** ![Palli](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/palli/32/3380_2.png) [@Palli](https://discourse.julialang.org/u/Palli)\ **Post date:** [November 8, 2022, 12:08am UTC](https://discourse.julialang.org/t/does-python-3-11-improve-the-performance-of-compatible-imported-python-packages-in-julia/89903/9 "2022-11-08T00:08:06Z")

> [@Shayan](#): > > I wonder if Python3.11 improves the Python packages’ performance in Julia. Yes, it should. I installed it but didn’t confirm/test performance. ```julia julia> using PythonCall # Note 3.11 or newer may not be the default read the docs, but it's easy to get with this package. julia> sys = pyimport("sys") Python module: julia> sys.version Python str: '3.11.0 | packaged by conda-forge | (main, Oct 25 2022, 06:47:48) [GCC 10.4.0]' julia> ENV["PYTHON"] = PythonCall.C.CTX.exe_path julia> import Pkg; Pkg.build("PyCall") ``` You can use PyCall with PythonCall (or either will do), but you may need to do the above (i.e. on Linux) for both (also other ways possible). I did get the package but: ```julia (@v1.8) pkg> conda add scikit-learn + scikit-learn 1.1.1 py310hffb9edd_0 conda-forge/linux-64 9MB [..] Downgrade: ─────────────────────────────────────────────────────────────────────────────────── - python 3.11.0 ha86cf86_0_cpython conda-forge Cached + python 3.10.6 ha86cf86_0_cpython conda-forge/linux-64 30MB ``` I’m not sure why, there’s a newer scikit-learn available, but maybe not in Conda, or it depends on the older Python version? There are also other ways to install (python and its) packages, e.g. pip. You would be able to use all of skikit-learn’s Python API with PythonCall, but if you rather need the Julia wrapper ScikitLearn.jl for the Julia API, then you need to use PyCall.