文件操作 - na.py

文件: /usr/lib/python3/dist-packages/virtualenv/app_data/na.py

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):  # noqa: U100
        return ContentStoreNA()

def embed_update_log(self, distribution, for_py_version):  # noqa: U100
        return ContentStoreNA()

def extract(self, path, to_folder):  # noqa: U100
        raise self.error

@contextmanager
    def locked(self, path):  # noqa: U100
        """do nothing"""
        yield

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

def wheel_image(self, for_py_version, name):  # noqa: U100
        raise self.error

def py_info_clear(self):
        """nothing to clear"""

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

def read(self):
        """nothing to read"""
        return None

def write(self, content):  # noqa: U100
        """nothing to write"""

def remove(self):
        """nothing to remove"""

@contextmanager
    def locked(self):
        yield

__all__ = [
    "AppDataDisabled",
    "ContentStoreNA",
]