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menu: fix crash when opening SDCard menu while printing 

This fixes the bug introduced by f1091a484b.
The problem is that condition was returning string which
could not be converted to boolean. We solve that by showing
`Start Printing` when `is_active`.

```
ERROR:root:Unhandled exception during run
Traceback (most recent call last):
   ...
   File "/opt/klipper/klippy/extras/display/menu.py", line 117, in eval_enable
     return bool(ast.literal_eval(self._enable_tpl.render(context)))
   File "/usr/lib/python2.7/ast.py", line 49, in literal_eval
     node_or_string = parse(node_or_string, mode='eval')
   File "/usr/lib/python2.7/ast.py", line 37, in parse
     return compile(source, filename, mode, PyCF_ONLY_AST)
   File "<unknown>", line 1
     /opt/octoprint/uploads/wait_print.gcode
```

Signed-off-by: Kamil Trzcinski <ayufan@ayufan.eu>
This commit is contained in:
Kamil Trzcinski 2021-07-23 11:09:46 +00:00 committed by KevinOConnor
parent c8405fe3db
commit 7e88f9220c
1 changed files with 1 additions and 1 deletions
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klippy/extras/display/menu.cfg
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@ -165,7 +165,7 @@ name: SD Card
[menu __main __sdcard __start] [menu __main __sdcard __start]
type: command type: command
enable: {('virtual_sdcard' in printer) and printer.virtual_sdcard.file_path} enable: {('virtual_sdcard' in printer) and printer.virtual_sdcard.file_path and not printer.virtual_sdcard.is_active}
name: Start printing name: Start printing
gcode: M24 gcode: M24