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Hi, I don't have JAVA_HOME set, java is installed in ~/.jdk/jdk-17... ~/PycharmProjects/play-with-ai main +3 !3 ?2 ▓▒░ ░▒▓ 5m 57s play-with-ai 22:48:56
❯ which java
java not found
~/PycharmProjects/play-with-ai main +3 !3 ?2 ▓▒░ ░▒▓ play-with-ai 22:48:59
❯ ls -al ~/.jdk/jdk-17.0.14+7/
total 8
drwxr-xr-x 1 fuho fuho 86 Jan 22 00:41 .
drwxr-xr-x 1 fuho fuho 26 Feb 17 22:30 ..
drwxr-xr-x 1 fuho fuho 330 Jan 22 00:41 bin
drwxr-xr-x 1 fuho fuho 138 Jan 22 00:37 conf
drwxr-xr-x 1 fuho fuho 140 Jan 22 00:37 include
drwxr-xr-x 1 fuho fuho 2642 Jan 22 00:37 jmods
drwxr-xr-x 1 fuho fuho 1942 Jan 22 00:37 legal
drwxr-xr-x 1 fuho fuho 1168 Jan 22 00:41 lib
drwxr-xr-x 1 fuho fuho 8 Jan 22 00:37 man
-rw-r--r-- 1 fuho fuho 2400 Jan 22 00:41 NOTICE
-rw-r--r-- 1 fuho fuho 1626 Jan 22 00:41 release
~/PycharmProjects/play-with-ai main +3 !3 ?2 ▓▒░ ░▒▓ play-with-ai 22:49:28
❯ ~/.jdk/jdk-17.0.14+7/bin/java --version
openjdk 17.0.14 2025-01-21
OpenJDK Runtime Environment Temurin-17.0.14+7 (build 17.0.14+7)
OpenJDK 64-Bit Server VM Temurin-17.0.14+7 (build 17.0.14+7, mixed mode, sharing)
~/PycharmProjects/play-with-ai main +3 !3 ?2 ▓▒░ ░▒▓ play-with-ai 22:49:48
❯ echo $JAVA_HOME
~/PycharmProjects/play-with-ai main +3 !3 ?2 ▓▒░ ░▒▓ play-with-ai 22:50:25 |
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Replies: 20 comments 5 replies
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Hi @fuho ! I'm not sure what is happening here, but let's figure it out. First, can you tell me if you can start the JVM with JPype? >> import jpype
>> jpype.startJVM()
>>That My first thought was to try setting My guess is that there's some OS library that the JDK depends on that has not been installed on your machine. Maybe try installing openjdk through your EndeavourOS's package manager, which should install any dependent libraries also? If neither of those help and you still get that error, I would suggest asking the JPype folks for guidance. |
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HEllo @hx2A , I actually made sure there is no JAVA_HOME set on purpose and installed it using install-jdk, thinking that it would be found (as mentioned here). |
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Right, but py5 knows to look for Java in the location where install-jdk installs Java. JPype doesn't know about that and won't know to look there. Can you try installing Java though your OS? I think in your case, that will work better. |
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Ok, added JAVA_HOME to my I'll remove the |
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Removed |
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OK, you are still getting that enigmatic MemoryError. I don't know what is causing that. How much memory does your machine have? I would suggest opening an issue with JPype and reference this issue. They might have seen this before. |
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64GB of RAM and it's not really claiming any... |
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The JPype docs say for Ubuntu users, you need to install this: sudo apt-get install g++ python3-devI know Endeavour is not a Debian flavor of Linux but perhaps there is something unique about it where it needs certain packages to be installed first? |
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Interesting, lemme try that... |
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Ok, checked the libs and found out I already have all of them installed. |
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I'm out of ideas here. Try opening an issue with JPype and see what they say. |
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Yeah I think you're right...
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@hx2A Actually just fixed this issue by force upgrading (against py5 requirements) jpype
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The |
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Oh, OK! Glad you got that working! And yes I need to do a release to change the JPype requirement to >= 1.5.2. I made it == 1.5.0 because 1.5.1 had complicated problems for us. I'm seriously swamped right now and haven't added much to py5 since the last release but maybe I should do a release anyway, just to make this change? I will see what I can do. |
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Thank you @fuho! I have to test JPype 1.5.2 on Windows to see if it fixed some other troubling issues, 1.5.1 broke stuff and caused us to pin it to 1.5.0 on py5. Sounds like progress! |
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I'm on Garuda, which is also an Arch-based distro like EndeavourOS. I did some search and found this system config file related to $JAVA_HOME variable: /etc/environment:# This file is parsed by pam_env module
# Syntax: simple "KEY=VAL" pairs on separate lines
JAVA_HOME=/usr/lib/jvm/default
GRAALVM_HOME=/usr/lib/jvm/java-22-graalvm
TMPDIR=/tmp
PS1='[\u@\h \W]\$ '
COMP_WORDBREAKS=" /\'><;|&("And its corresponding script for setting Java's current binary path: /etc/profile.d/jre.sh# Do not change this unless you want to completely by-pass Arch Linux' way
# of handling Java versions and vendors. Instead, please use script `archlinux-java`
append_path '/usr/lib/jvm/default/bin'
export PATHAs mentioned by the "jre.sh" script, we should use BtW, this is my main Java package I've installed in my system: "jdk21-openjdk" >>> archlinux-java get
java-21-openjdk>>> archlinux-java status
Available Java environments:
java-21-openjdk (default)
java-22-graalvm
java-8-openjdk |
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@GoToLoop Thanks for this! I have installed two other jdk versions and successfully switched between them using Also I can confirm that py5 loaded with java21. |
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Awesome, glad you have it working, @fuho ! And thanks @GoToLoop for the info about that distribution. I'm going to do a py5 release with the jpype>=1.5.2 requirement once Processing does their next release, which should be by the middle of March. |
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I hope y'all don't mind I have converted this into a discussion, as it might remain more accessible for people searching for similar things and it might encourage people asking questions and reporting stuff here (I think I would think twice before asking more questions and reporting stuff on a closed issue). |
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Hi, I was just trying to install py5 (for the first time somehow!) on Linux Mint and ran into this same issue—I think this is the underlying JPype problem, which was fixed in 1.5.2. The strategy of force-upgrading to JPype 1.5.2 works fine... sort of. The problem is that the py5 package still lists JPype 1.5.0 specifically as a requirement, but JPype has removed pre-built binaries for that version from PyPI, which means that installing py5 in the first place now requires compiling JPype 1.5.0 from scratch... which in turn means that my students on macOS will need to download xcode tools or whatever to get started with py5. Less than ideal! A fix soon would be great (though not an emergency for me—I'll probably just fork the py5 package repository, bump the JPype dependency version there, and have my students install from my fork instead of PyPI for now). |
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Hi @aparrish ! Good to hear from you! Yes, a release is on the way. I was crazy busy with the Whitney show that opened two weeks ago. I am finishing up one new feature and ideally will do a release right after that. Pinning jpype to 1.5.0 made sense at the time and addressed some issues we were having, but in retrospect, I should have done that differently. And I'd love to hear how you are using py5 in your class. I will be at ITP camp in June so I'll be around then. It would be great to chat with you! |
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Nice, I didn't know about pip-review, I would get good use out of this. Thanks for sharing your py5 setup, @GoToLoop :) |
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Also sharing my ".bashrc" snippet for activating "mypy5" venv & Thonny as "thon", assuming it's inside "~/.venv/" folder: mypy5() {
source "$HOME/.venv/bin/activate" # py5 venv
}
thon() {
# Activate the mypy5 virtual environment
mypy5
# Run Thonny in the background and redirect output to the log file
nohup python -m thonny > ~/.venv/.thonny/thonny_output.log 2>&1 &
# Deactivate the virtual environment
deactivate
}And the corresponding Fish shell version: function mypy5
source "$HOME/.venv/bin/activate.fish" # py5 venv
end
function thon
# Activate the mypy5 virtual environment
mypy5
# Run Thonny in the background and redirect output to the log file
nohup python -m thonny > ~/.venv/.thonny/thonny_output.log 2>&1 &
# Deactivate the virtual environment
deactivate
end |
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@hx2A Actually just fixed this issue by force upgrading (against py5 requirements) jpype
1.5.0(named JPype1) to1.5.2(named jpype1).