Blender-TexTools/op_texture_open.py

import bpy
import bmesh
import operator
import math
import os
import sys
import subprocess

from . import settings
from . import utilities_bake


class op(bpy.types.Operator):
    bl_idname = "uv.textools_texture_open"
    bl_label = "Open Texture"
    bl_description = "Open the texture on the system"

    name: bpy.props.StringProperty(
        name="image name",
        default=""
    )

    @classmethod
    def poll(cls, context):
        return True

    def execute(self, context):
        open_texture(self, context)
        return {'FINISHED'}


def open_texture(self, context):

    print("Info")
    if self.name in bpy.data.images:
        image = bpy.data.images[self.name]

        if image.filepath != "":
            path = bpy.path.abspath(image.filepath)
            # https://meshlogic.github.io/posts/blender/addons/extra-image-list/
            # https://docs.blender.org/api/blender_python_api_2_78_release/bpy.ops.image.html
            print("Open: {}".format(path))

            if sys.platform == "win32":
                os.startfile(path)
            else:
                opener = "open" if sys.platform == "darwin" else "xdg-open"
                subprocess.call([opener, path])


bpy.utils.register_class(op)