Hello,

When I uninstall a Odoo module, I have in console pycharm this error but my module is uninstall : 

2018-12-21 13:15:24,940 5292 INFO odoo odoo.addons.base.ir.ir_model: Deleting 7745@ir.model.fields
2018-12-21 13:15:24,941 5292 INFO odoo odoo.addons.base.ir.ir_model: Unable to delete 7745@ir.model.fields
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/odoo/addons/base/ir/ir_model.py", line 1335, in unlink_if_refcount
    self.env[model].browse(res_id).unlink()
  File "/usr/lib/python2.7/dist-packages/odoo/addons/base/ir/ir_model.py", line 509, in unlink
    self._drop_column()
  File "/usr/lib/python2.7/dist-packages/odoo/addons/base/ir/ir_model.py", line 429, in _drop_column
    model = self.env[field.model]
  File "/var/lib/odoo/odoo/odoo/odoo/api.py", line 760, in __getitem__
    return self.registry[model_name]._browse((), self)
  File "/var/lib/odoo/odoo/odoo/odoo/modules/registry.py", line 178, in __getitem__
    return self.models[model_name]
KeyError: u'test.test'
2018-12-21 13:15:24,942 5292 INFO odoo odoo.addons.base.ir.ir_model: Deleting 7744@ir.model.fields
2018-12-21 13:15:24,943 5292 INFO odoo odoo.addons.base.ir.ir_model: Unable to delete 7744@ir.model.fields
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/odoo/addons/base/ir/ir_model.py", line 1335, in unlink_if_refcount
    self.env[model].browse(res_id).unlink()
  File "/usr/lib/python2.7/dist-packages/odoo/addons/base/ir/ir_model.py", line 509, in unlink
    self._drop_column()
  File "/usr/lib/python2.7/dist-packages/odoo/addons/base/ir/ir_model.py", line 429, in _drop_column
    model = self.env[field.model]
  File "/var/lib/odoo/odoo/odoo/odoo/api.py", line 760, in __getitem__
    return self.registry[model_name]._browse((), self)
  File "/var/lib/odoo/odoo/odoo/odoo/modules/registry.py", line 178, in __getitem__
    return self.models[model_name]
KeyError: u'test.test'
2018-12-21 13:15:24,944 5292 INFO odoo odoo.addons.base.ir.ir_model: Deleting 7742@ir.model.fields
2018-12-21 13:15:24,945 5292 INFO odoo odoo.addons.base.ir.ir_model: Unable to delete 7742@ir.model.fields
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/odoo/addons/base/ir/ir_model.py", line 1335, in unlink_if_refcount
    self.env[model].browse(res_id).unlink()
  File "/usr/lib/python2.7/dist-packages/odoo/addons/base/ir/ir_model.py", line 509, in unlink
    self._drop_column()
  File "/usr/lib/python2.7/dist-packages/odoo/addons/base/ir/ir_model.py", line 429, in _drop_column
    model = self.env[field.model]
  File "/var/lib/odoo/odoo/odoo/odoo/api.py", line 760, in __getitem__
    return self.registry[model_name]._browse((), self)
  File "/var/lib/odoo/odoo/odoo/odoo/modules/registry.py", line 178, in __getitem__
    return self.models[model_name]
KeyError: u'test.test'
2018-12-21 13:15:24,946 5292 INFO odoo odoo.addons.base.ir.ir_model: Deleting 7739@ir.model.fields
2018-12-21 13:15:24,947 5292 INFO odoo odoo.addons.base.ir.ir_model: Unable to delete 7739@ir.model.fields
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/odoo/addons/base/ir/ir_model.py", line 1335, in unlink_if_refcount
    self.env[model].browse(res_id).unlink()
  File "/usr/lib/python2.7/dist-packages/odoo/addons/base/ir/ir_model.py", line 509, in unlink
    self._drop_column()
  File "/usr/lib/python2.7/dist-packages/odoo/addons/base/ir/ir_model.py", line 429, in _drop_column
    model = self.env[field.model]
  File "/var/lib/odoo/odoo/odoo/odoo/api.py", line 760, in __getitem__
    return self.registry[model_name]._browse((), self)
  File "/var/lib/odoo/odoo/odoo/odoo/modules/registry.py", line 178, in __getitem__
    return self.models[model_name]
KeyError: u'test.test'

Thanks you !