Won't Enable/No slic3r option in plugin list

[solo2424]

I am really hoping to get some assistance with getting slic3r installed and running on OptoPrint. I installed the plugin using the plugin manager and appears to install with no issues. After installation, I restart OptoPrint but slic3r is not showing up in the left-hand panel under plugins. When I go back to the plugin manager, it is disabled. I enable it but it still does not show up in the plugin list on the sidebar. After restarting, the plugin is once again disabled.

I have installed slic3r on the raspberry pi using this tutorial. Any assistance will be greatly appreciated! Thank you!

[hd-genius]

Hi @solo2424, it sounds like you may be running into a python version issue. Do you see this lightning bolt icon next to the plugin on the plugin manager screen? If so, that means that the python version used with your OctoPrint install doesn't support OctoPrint-Slic3r.

[solo2424]

That does seem to be the problem. Do you know what version I need and how to update? I imagine it is as simple as an apt-get command?

[solo2424]

I was able to check and it shows I have two versions of python installed. Both within the requirements from OctoPrint-Slic3r (Python: >=2.7,<4)

pi@octopi:~ $ python -V command Python 2.7.16 pi@octopi:~ $ python3 --version Python 3.7.3

[cp2004]

The problem is below:

2022-08-25 17:11:23,498 - octoprint.plugin.core - ERROR - Invalid syntax in plugin file of plugin slic3r
Traceback (most recent call last):
  File "C:\Users\charl\Development\OctoPrint Core\OctoPrint\src\octoprint\plugin\core.py", line 782, in _parse_metadata
    return parse_plugin_metadata(self.location)
  File "C:\Users\charl\Development\OctoPrint Core\OctoPrint\src\octoprint\plugin\core.py", line 78, in parse_plugin_metadata
    root = ast.parse(f.read(), filename=path)
  File "C:\Program Files\Python310\lib\ast.py", line 50, in parse
    return compile(source, filename, mode, flags,
  File "C:\Users\charl\Development\venv310\lib\site-packages\octoprint_slic3r\__init__.py", line 296
    if help_text_all[0].find(b'trace') >= 0
                                           ^
SyntaxError: expected ':'
2022-08-25 17:11:23,499 - octoprint.plugin.core - WARNING - Plugin OctoPrint-Slic3r (1.3.0) can't be compiled under Python 3.10.2 due to invalid syntax

[solo2424]

Thank you for the reply! You have any idea how to resolve this

On Thu, Aug 25, 2022, 12:12 PM Charlie Powell @.***> wrote:

The problem is below:

2022-08-25 17:11:23,498 - octoprint.plugin.core - ERROR - Invalid syntax in plugin file of plugin slic3r Traceback (most recent call last): File "C:\Users\charl\Development\OctoPrint Core\OctoPrint\src\octoprint\plugin\core.py", line 782, in _parse_metadata return parse_plugin_metadata(self.location) File "C:\Users\charl\Development\OctoPrint Core\OctoPrint\src\octoprint\plugin\core.py", line 78, in parse_plugin_metadata root = ast.parse(f.read(), filename=path) File "C:\Program Files\Python310\lib\ast.py", line 50, in parse return compile(source, filename, mode, flags, File "C:\Users\charl\Development\venv310\lib\site-packages\octoprint_slic3r__init__.py", line 296 if help_text_all[0].find(b'trace') >= 0 ^ SyntaxError: expected ':' 2022-08-25 17:11:23,499 - octoprint.plugin.core - WARNING - Plugin OctoPrint-Slic3r (1.3.0) can't be compiled under Python 3.10.2 due to invalid syntax

— Reply to this email directly, view it on GitHub https://github.com/OctoPrint/OctoPrint-Slic3r/issues/70#issuecomment-1227482126, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAOQWWULMAK5653HOU3TPNLV26LQHANCNFSM54EXOXPQ . You are receiving this because you were mentioned.Message ID: @.***>

[cp2004]

The issue should be resolved on the master branch (#71). A reinstall of the plugin should pick up the fixes.

[eyal0]

The issue should be resolved on the master branch (#71). A reinstall of the plugin should pick up the fixes.

I might need to make a release. I think that octoprint takes from the releases, not from master.

[eyal0]

Fixed by #71