Can't access actually used values of macro operator properties from Python #40762

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CodeManX · 2014-06-23T02:22:01+02:00

CodeManX commented

2014-06-23 02:22:01 +02:00

System Information
Windows 7, 64bit

Blender Version
Broken: 2.71 RC2

Short description of error
Logged operators in WindowManager.operators also include Macros, but if their arguments are retrieved, they are all at their default values.

Exact steps for others to reproduce the error

Go to Scripting view
Shift + D to duplicate linked
Paste and Run script:

import bpy
from collections import Iterable
from mathutils import Vector, Matrix
from _bpy import StructMetaPropGroup

def main():
    for op in bpy.context.window_manager.operators:
        cmd = format_logged_op(op)
        print(cmd)

def format_logged_op(op):
    tmp = []
    for k in op.properties.keys():
        p = getattr(op.properties, k)
        if isinstance(type(p), StructMetaPropGroup):
            props = format_macro_props(p, p.bl_rna.properties.keys())
            tmp.append("%s={%s}" % (p.bl_rna.identifier, props))
        else:
            tmp.append(format_key_value(k, p))

    return "bpy.ops.%s(%s)" % (format_idname(op), ", ".join(tmp))

def format_macro_props(prop, keys):
    tmp = []
    for k in keys:
        if k == "rna_type":
            continue
        p = getattr(prop, k)
        tmp.append(format_key_value(k, p, fmt='"%s": %r'))
    return ", ".join(tmp)
    
def format_key_value(k, p, fmt="%s=%r"):
    if isinstance(p, Vector):
        p = p.to_tuple()
    elif isinstance(p, Matrix):
        p = "(%s)" % ", ".join(repr(vec.to_tuple()) for vec in p)
    elif not isinstance(p, str) and isinstance(p, Iterable):
        p = p[:]
    return fmt % (k, p)


def format_idname(op):
    return ".".join(op.bl_idname.split("_OT_", maxsplit=1)).lower()
    
main()

It will print


bpy.ops.mesh.duplicate_move(MESH_OT_duplicate={"mode":1}, TRANSFORM_OT_translate
={"value":(0.0, 0.0, 0.0), "constraint_axis":(False, False, False), "constraint_
orientation":'GLOBAL', "mirror":False, "proportional":'DISABLED', "proportional_
edit_falloff":'SMOOTH', "proportional_size":1.0, "snap":False, "snap_target":'CL
OSEST', "snap_point":(0.0, 0.0, 0.0), "snap_align":False, "snap_normal":(0.0, 0.

0, 0.0), "texture_space":False, "remove_on_cancel":False, "release_confirm":Fals

e})

so everything False, 0.0 or whatever is default...

**System Information** Windows 7, 64bit **Blender Version** Broken: 2.71 RC2 **Short description of error** Logged operators in `WindowManager.operators` also include Macros, but if their arguments are retrieved, they are all at their default values. **Exact steps for others to reproduce the error** - Go to Scripting view - Shift + D to duplicate linked - Paste and Run script: ``` import bpy from collections import Iterable from mathutils import Vector, Matrix from _bpy import StructMetaPropGroup def main(): for op in bpy.context.window_manager.operators: cmd = format_logged_op(op) print(cmd) def format_logged_op(op): tmp = [] for k in op.properties.keys(): p = getattr(op.properties, k) if isinstance(type(p), StructMetaPropGroup): props = format_macro_props(p, p.bl_rna.properties.keys()) tmp.append("%s={%s}" % (p.bl_rna.identifier, props)) else: tmp.append(format_key_value(k, p)) return "bpy.ops.%s(%s)" % (format_idname(op), ", ".join(tmp)) def format_macro_props(prop, keys): tmp = [] for k in keys: if k == "rna_type": continue p = getattr(prop, k) tmp.append(format_key_value(k, p, fmt='"%s": %r')) return ", ".join(tmp) def format_key_value(k, p, fmt="%s=%r"): if isinstance(p, Vector): p = p.to_tuple() elif isinstance(p, Matrix): p = "(%s)" % ", ".join(repr(vec.to_tuple()) for vec in p) elif not isinstance(p, str) and isinstance(p, Iterable): p = p[:] return fmt % (k, p) def format_idname(op): return ".".join(op.bl_idname.split("_OT_", maxsplit=1)).lower() main() ``` It will print ``` bpy.ops.mesh.duplicate_move(MESH_OT_duplicate={"mode":1}, TRANSFORM_OT_translate ={"value":(0.0, 0.0, 0.0), "constraint_axis":(False, False, False), "constraint_ orientation":'GLOBAL', "mirror":False, "proportional":'DISABLED', "proportional_ edit_falloff":'SMOOTH', "proportional_size":1.0, "snap":False, "snap_target":'CL OSEST', "snap_point":(0.0, 0.0, 0.0), "snap_align":False, "snap_normal":(0.0, 0. ``` 0, 0.0), "texture_space":False, "remove_on_cancel":False, "release_confirm":Fals ``` e}) ``` so everything False, 0.0 or whatever is default...

CodeManX commented

2014-06-23 02:22:01 +02:00

Changed status to: 'Open'

CodeManX commented

2014-06-23 02:22:01 +02:00

Added subscriber: @CodeManX

Lukas Tönne commented

2014-06-23 10:52:03 +02:00

Added subscribers: @ideasman42, @LukasTonne

Lukas Tönne commented

2014-06-23 10:52:03 +02:00

I may be wrong, but IIRC macro operators in fact don't have properties of their own (or at least they don't inherit properties from nested operators by default). Including nested operator properties in the macro's dict would be dangerous. How would you handle name conflicts etc.?

If anything, the nested operators' properties should be accessible as a collection inside the macro (something like window_manager.operators[-1].macro- [x].properties). This is actually how properties are stored for macros and how the redo panel accesses and displays them. I don't know why these are not exposed already in the RNA, maybe @ideasman42 can say?

About dynamic enums: Yes, this is annoying ... In principle dynamic enums can depend on context even, but in most cases they're just used to select a fixed list based on some other property. There are classmethods in UILayout which could be used for resolving enum names, descriptions and icons, but not for mapping index <-> identifier. Something like this would be very handy (if it doesn't exist somewhere else already?).

I may be wrong, but IIRC macro operators in fact don't have properties of their own (or at least they don't inherit properties from nested operators by default). Including nested operator properties in the macro's dict would be dangerous. How would you handle name conflicts etc.? If anything, the nested operators' properties should be accessible as a collection inside the macro (something like `window_manager.operators[-1].macro- [x].properties`). This is actually how properties are stored for macros and how the redo panel accesses and displays them. I don't know why these are not exposed already in the RNA, maybe @ideasman42 can say? About dynamic enums: Yes, this is annoying ... In principle dynamic enums can depend on context even, but in most cases they're just used to select a fixed list based on some other property. There are classmethods in UILayout which could be used for resolving enum names, descriptions and icons, but not for mapping index <-> identifier. Something like this would be very handy (if it doesn't exist somewhere else already?).

iPLEOMAX commented

2014-06-23 12:38:02 +02:00

(Migrated from localhost:3001)

Added subscriber: @iPLEOMAX

iPLEOMAX commented

2014-06-23 12:38:02 +02:00

(Migrated from localhost:3001)

Use attributes instead of dictionary keys.

bpy.context.window_manager.operators[-1].properties['constraint_orientation']

bpy.context.window_manager.operators[-1].properties.constraint_orientation

The dict keys() can be used to getattr()

Use attributes instead of dictionary keys. bpy.context.window_manager.operators[-1].properties['constraint_orientation'] - > bpy.context.window_manager.operators[-1].properties.constraint_orientation The dict keys() can be used to getattr()

Lukas Tönne commented

2014-06-23 14:18:39 +02:00

Changed status from 'Open' to: 'Archived'

Lukas Tönne closed this issue

2014-06-23 14:18:39 +02:00

Lukas Tönne self-assigned this 2014-06-23 14:18:39 +02:00

Lukas Tönne commented

2014-06-23 14:18:39 +02:00

Ah yes, @iPLEOMAX is right. The nested operator properties can be accessed as attributes. To get all their properties you could use the RNA type info:

props = bpy.context.window_manager.operators[-1].properties.OBJECT_OT_duplicate.bl_rna.properties.keys()

Closing this report.

Ah yes, @iPLEOMAX is right. The nested operator properties can be accessed as attributes. To get all their properties you could use the RNA type info: ``` props = bpy.context.window_manager.operators[-1].properties.OBJECT_OT_duplicate.bl_rna.properties.keys() ``` Closing this report.

CodeManX changed title from ~~WindowManager.operators does not resolve macro properties~~ to Can't access actually used values of macro operator properties from Python

2014-06-24 21:31:01 +02:00

CodeManX commented

2014-06-24 21:31:01 +02:00

Changed status from 'Archived' to: 'Open'

CodeManX reopened this issue

2014-06-24 21:31:01 +02:00

CodeManX commented

2014-06-26 11:44:31 +02:00

Re-opened, because macro operator arguments can't be accessed.

http://blenderartists.org/forum/showthread.php?340868-Get-lines-from-INFO-area&p=2674292&viewfull=1#post2674292

Re-opened, because macro operator arguments can't be accessed. http://blenderartists.org/forum/showthread.php?340868-Get-lines-from-INFO-area&p=2674292&viewfull=1#post2674292

Bastien Montagne commented

2014-07-02 14:12:14 +02:00

Added subscriber: @mont29

Bastien Montagne commented

2014-07-02 14:12:14 +02:00

Yeah… I had to fight that issue in C as well, to allow the log/info window to show valid parameters in this case too, some time ago… Sounds more like a TODO to me, tbh.

Lukas Tönne removed their assignment 2014-07-23 15:51:27 +02:00

Lukas Tönne commented

2014-07-23 15:51:27 +02:00

IDK what the problem here is actually ...

Campbell Barton was assigned by Sergey Sharybin

2014-07-24 12:59:07 +02:00

Sergey Sharybin commented

2014-07-24 12:59:07 +02:00

Added subscriber: @Sergey