Ultra File Manager

from __future__ import absolute_import, unicode_literals

from contextlib import contextmanager

from .base import AppData, ContentStore

class AppDataDisabled(AppData):
    """No application cache available (most likely as we don't have write permissions)"""

transient = True
    can_update = False

def __init__(self):
        pass

error = RuntimeError("no app data folder available, probably no write access to the folder")

def close(self):
        """do nothing"""

def reset(self):
        """do nothing"""

def py_info(self, path):
        return ContentStoreNA()

def embed_update_log(self, distribution, for_py_version):
        return ContentStoreNA()

def extract(self, path, to_folder):
        raise self.error

@contextmanager
    def locked(self, path):
        """do nothing"""
        yield

@property
    def house(self):
        raise self.error

def wheel_image(self, for_py_version, name):
        raise self.error

def py_info_clear(self):
        """ """

class ContentStoreNA(ContentStore):
    def exists(self):
        return False

def read(self):
        """ """
        return None

def write(self, content):
        """ """

def remove(self):
        """ """

@contextmanager
    def locked(self):
        yield