Autocomplete bug with mesh.loop_triangles. in Blender Python Consolle #74003

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Andrea Donati · 2020-02-19T11:53:46+01:00

Andrea Donati commented

2020-02-19 11:53:46 +01:00

System Information
Operating system: Win 10 Pro and linux
Graphics card: Gtx1080ti / Gtx 970

Blender Version
Broken: 2.82

if try to autocomplete in the py console, blender crashes

mesh = bpy.data.meshes.new('Test')
mesh.loop_triangles. #Type till . and hit tab.

**System Information** Operating system: Win 10 Pro and linux Graphics card: Gtx1080ti / Gtx 970 **Blender Version** Broken: 2.82 if try to autocomplete in the py console, blender crashes `mesh = bpy.data.meshes.new('Test')` `mesh.loop_triangles.` #Type till `.` and hit tab.

Andrea Donati commented

2020-02-19 11:53:46 +01:00

Added subscriber: @Andrew_D

Ankit Meel commented

2020-02-19 11:57:55 +01:00

Added subscriber: @ankitm

Ankit Meel commented

2020-02-19 11:57:55 +01:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Ankit Meel commented

2020-02-19 11:57:55 +01:00

On default setup, it doesn't crash on 2.83 if I type mesh.loop and press tab, it gives two green options s and _triangles. I enter _ and hit tab, it correctly autocompletes.
Are you using some other file? Please attach that. Also try on 2.83, get it from https://builder.blender.org

On default setup, it doesn't crash on 2.83 if I type `mesh.loop` and press tab, it gives two green options `s` and `_triangles`. I enter `_` and hit tab, it correctly autocompletes. Are you using some other file? Please attach that. Also try on 2.83, get it from https://builder.blender.org

Andrea Donati commented

2020-02-19 12:02:43 +01:00

I confirm that what you said it does, but if I try to add a "." and I try to autocomplete, it will crash 2.82 currently, and 2.83 same crash
So mesh.loop_triangles. ## .... autocomplete ... ## crash

I confirm that what you said it does, but if I try to add a "." and I try to autocomplete, it will crash 2.82 currently, and 2.83 same crash So mesh.loop_triangles. ## .... autocomplete ... ## crash

Ankit Meel commented

2020-02-19 12:05:14 +01:00

Oh yeah, misunderstood that part. Segmentation fault: 11

Oh yeah, misunderstood that part. `Segmentation fault: 11`

Ankit Meel commented

2020-02-19 12:06:06 +01:00

Changed status from 'Needs User Info' to: 'Needs Triage'

Richard Antalik commented

2020-02-19 17:40:00 +01:00

Added subscriber: @iss

Richard Antalik commented

2020-02-19 17:40:00 +01:00

Changed status from 'Needs Triage' to: 'Confirmed'

Richard Antalik commented

2020-02-19 17:40:00 +01:00

me->mloop was NULL

>	blender.exe!rna_MeshLoopTriangle_area_get(PointerRNA * ptr) Line 473	C

 	blender.exe!pyrna_prop_to_py(PointerRNA * ptr, PropertyRNA * prop) Line 1526	C
 	blender.exe!pyrna_prop_collection_getattro(BPy_PropertyRNA * self, _object * pyname) Line 4571	C
 	[Externí kód]	
 	blender.exe!bpy_class_call(bContext * C, PointerRNA * ptr, FunctionRNA * func, ParameterList * parms) Line 8333	C
 	blender.exe!rna_operator_execute_cb(bContext * C, wmOperator * op) Line 1307	C
 	blender.exe!wm_operator_invoke(bContext * C, wmOperatorType * ot, wmEvent * event, PointerRNA * properties, ReportList * reports, const bool poll_only, bool use_last_properties) Line 1279	C
 	blender.exe!wm_operator_call_internal(bContext * C, wmOperatorType * ot, PointerRNA * properties, ReportList * reports, const short context, const bool poll_only, wmEvent * event) Line 1514	C
 	blender.exe!WM_operator_name_call_ptr(bContext * C, wmOperatorType * ot, short context, PointerRNA * properties) Line 1529	C
 	blender.exe!console_indent_or_autocomplete_exec(bContext * C, wmOperator * UNUSED_op) Line 486	C
 	blender.exe!wm_operator_invoke(bContext * C, wmOperatorType * ot, wmEvent * event, PointerRNA * properties, ReportList * reports, const bool poll_only, bool use_last_properties) Line 1279	C
 	blender.exe!wm_handler_operator_call(bContext * C, ListBase * handlers, wmEventHandler * handler_base, wmEvent * event, PointerRNA * properties, const unsigned char * kmi_idname) Line 2091	C
 	blender.exe!wm_handlers_do_keymap_with_keymap_handler(bContext * C, wmEvent * event, ListBase * handlers, wmEventHandler_Keymap * handler, wmKeyMap * keymap, const bool do_debug_handler) Line 2401	C
 	blender.exe!wm_handlers_do_intern(bContext * C, wmEvent * event, ListBase * handlers) Line 2537	C
 	blender.exe!wm_handlers_do(bContext * C, wmEvent * event, ListBase * handlers) Line 2802	C
 	blender.exe!wm_event_do_handlers(bContext * C) Line 3255	C
 	blender.exe!WM_main(bContext * C) Line 421	C
 	blender.exe!main(int argc, const unsigned char * * UNUSED_argv_c) Line 520	C
 	[Externí kód]

`me->mloop` was NULL ``` > blender.exe!rna_MeshLoopTriangle_area_get(PointerRNA * ptr) Line 473 C blender.exe!pyrna_prop_to_py(PointerRNA * ptr, PropertyRNA * prop) Line 1526 C blender.exe!pyrna_prop_collection_getattro(BPy_PropertyRNA * self, _object * pyname) Line 4571 C [Externí kód] blender.exe!bpy_class_call(bContext * C, PointerRNA * ptr, FunctionRNA * func, ParameterList * parms) Line 8333 C blender.exe!rna_operator_execute_cb(bContext * C, wmOperator * op) Line 1307 C blender.exe!wm_operator_invoke(bContext * C, wmOperatorType * ot, wmEvent * event, PointerRNA * properties, ReportList * reports, const bool poll_only, bool use_last_properties) Line 1279 C blender.exe!wm_operator_call_internal(bContext * C, wmOperatorType * ot, PointerRNA * properties, ReportList * reports, const short context, const bool poll_only, wmEvent * event) Line 1514 C blender.exe!WM_operator_name_call_ptr(bContext * C, wmOperatorType * ot, short context, PointerRNA * properties) Line 1529 C blender.exe!console_indent_or_autocomplete_exec(bContext * C, wmOperator * UNUSED_op) Line 486 C blender.exe!wm_operator_invoke(bContext * C, wmOperatorType * ot, wmEvent * event, PointerRNA * properties, ReportList * reports, const bool poll_only, bool use_last_properties) Line 1279 C blender.exe!wm_handler_operator_call(bContext * C, ListBase * handlers, wmEventHandler * handler_base, wmEvent * event, PointerRNA * properties, const unsigned char * kmi_idname) Line 2091 C blender.exe!wm_handlers_do_keymap_with_keymap_handler(bContext * C, wmEvent * event, ListBase * handlers, wmEventHandler_Keymap * handler, wmKeyMap * keymap, const bool do_debug_handler) Line 2401 C blender.exe!wm_handlers_do_intern(bContext * C, wmEvent * event, ListBase * handlers) Line 2537 C blender.exe!wm_handlers_do(bContext * C, wmEvent * event, ListBase * handlers) Line 2802 C blender.exe!wm_event_do_handlers(bContext * C) Line 3255 C blender.exe!WM_main(bContext * C) Line 421 C blender.exe!main(int argc, const unsigned char * * UNUSED_argv_c) Line 520 C [Externí kód] ```

Bastien Montagne self-assigned this 2020-02-24 12:00:53 +01:00

Bastien Montagne commented

2020-02-24 12:26:04 +01:00

We can harden the RNA accessors fairly easily, but the root of the issue here is that mesh.loop_triangles is seen as an actual looptri item, with completely wrong random values, when RNA should detect that the looptri array is empty (its len is at zero)... Still investigating what exactly is wrong here.

We can harden the RNA accessors fairly easily, but the root of the issue here is that `mesh.loop_triangles` is seen as an actual looptri item, with completely wrong random values, when RNA should detect that the looptri array is empty (its len is at zero)... Still investigating what exactly is wrong here.

blender-admin commented

2020-02-24 12:43:24 +01:00

This issue was referenced by 0dbf8d5909

This issue was referenced by 0dbf8d5909b0676bfb4e41dec34932480c6ad45d

blender-admin commented

2020-02-24 12:43:24 +01:00

This issue was referenced by 69c587888b

This issue was referenced by 69c587888b5e95a2f838f63cabd52bc6cf752ece

Bastien Montagne commented

2020-02-24 12:43:31 +01:00

Wow... Think that's the cutest typo-bug I have seen in a while... and it has been there for over one year! It's actually quiet impressive to see that RNA survived to that mistake for so long. :P

Bastien Montagne commented

2020-02-24 12:47:01 +01:00

Changed status from 'Confirmed' to: 'Resolved'

Bastien Montagne closed this issue

2020-02-24 12:47:01 +01:00

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Autocomplete bug with mesh.loop_triangles. in Blender Python Consolle #74003