does anyone know how to delete a file from inside blender script? i tried to use os.remove, but it gives me an error:

TypeError: unlink: illegal type for path parameter

the path i put into the os.remove is the same path i use to load the file, where i save it into a variable. i tried changing the string variable to subtype = "FILE_PATH" but no effect. the loading goes fine, but if i input the same path to remove it doesn't work

is there any other way to do this?


That's right os.remove() is the way to go, on Unix (Linux and OSX too) and Windows. See this answer on stackoverflow

That error likely occurs because you are calling os.remove(some_file_path) where:

  1. some_file_path isn't set at that moment in time
  2. or the filepath can't be resolved by os.remove().

Try printing the value of some_file_path just ahead of calling os.remove(), most likely you'll either get an empty string or some modified path.

See this working example.

  • This will add a panel to properties called Hello World Panel,
  • it has a file selector and stores the filepath as a scene variable called some_identifier.
  • The button 'Remove File' removes the file identified by scene property


bl_info = {
    "name": "FILL ME IN",
    "author": "",
    "version": (0, 1),
    "blender": (2, 7, 6),
    "category": "3D View"

import os
import bpy
from bpy_extras.io_utils import ExportHelper

class WMFileRemover(bpy.types.Operator):
    bl_idname = "wm.remove_file"
    bl_label = "Remove File"

    def execute(self, context):
        fp = context.scene.some_identifier
        if fp:
            print('os.remove(', fp, ')')
            self.report({'ERROR'}, 'filepath is an empty string')
        return {'FINISHED'}

class WMFileSelector(bpy.types.Operator, ExportHelper):
    bl_idname = "something.identifier_selector"
    bl_label = "some folder"

    filename_ext = ""

    def execute(self, context):
        fdir = self.properties.filepath
        context.scene.some_identifier = fdir

class WMFilePanel(bpy.types.Panel):
    """Creates a Panel in the Object properties window"""
    bl_label = "Hello World Panel"
    bl_idname = "OBJECT_PT_hello"
    bl_space_type = 'PROPERTIES'
    bl_region_type = 'WINDOW'

    def draw(self, context):
        layout = self.layout
        scn = context.scene

        # ui
        col = layout.column()
        row = col.row(align=True)
        row.prop(scn, 'some_identifier', text='directory:')
        row.operator("something.identifier_selector", icon="FILE_FOLDER", text="")

        col = layout.column()

def register():
    bpy.types.Scene.some_identifier = bpy.props.StringProperty()

def unregister():
    del bpy.types.Scene.some_identifier
  • $\begingroup$ Turns ou the os.remove() was correct it was just a dumb mistake of not defining the variable in the right place. Thanks for reminding me to check if the path is set. $\endgroup$ – Joe Dec 8 '15 at 20:10

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