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File Content: base.py

"""
Application data stored by virtualenv.
"""
from __future__ import absolute_import, unicode_literals

from abc import ABCMeta, abstractmethod
from contextlib import contextmanager

import six

from virtualenv.info import IS_ZIPAPP

@six.add_metaclass(ABCMeta)
class AppData(object):
    """Abstract storage interface for the virtualenv application"""

@abstractmethod
    def close(self):
        """called before virtualenv exits"""

@abstractmethod
    def reset(self):
        """called when the user passes in the reset app data"""

@abstractmethod
    def py_info(self, path):
        raise NotImplementedError

@abstractmethod
    def py_info_clear(self):
        raise NotImplementedError

@property
    def can_update(self):
        raise NotImplementedError

@abstractmethod
    def embed_update_log(self, distribution, for_py_version):
        raise NotImplementedError

@property
    def house(self):
        raise NotImplementedError

@property
    def transient(self):
        raise NotImplementedError

@abstractmethod
    def wheel_image(self, for_py_version, name):
        raise NotImplementedError

@contextmanager
    def ensure_extracted(self, path, to_folder=None):
        """Some paths might be within the zipapp, unzip these to a path on the disk"""
        if IS_ZIPAPP:
            with self.extract(path, to_folder) as result:
                yield result
        else:
            yield path

@abstractmethod
    @contextmanager
    def extract(self, path, to_folder):
        raise NotImplementedError

@abstractmethod
    @contextmanager
    def locked(self, path):
        raise NotImplementedError

@six.add_metaclass(ABCMeta)
class ContentStore(object):
    @abstractmethod
    def exists(self):
        raise NotImplementedError

@abstractmethod
    def read(self):
        raise NotImplementedError

@abstractmethod
    def write(self, content):
        raise NotImplementedError

@abstractmethod
    def remove(self):
        raise NotImplementedError

@abstractmethod
    @contextmanager
    def locked(self):
        pass

Name	Size	Permission
__pycache__	---	0755
__init__.py	1468 bytes	0644
base.py	2129 bytes	0644
na.py	1310 bytes	0644
read_only.py	1006 bytes	0644
via_disk_folder.py	5624 bytes	0644
via_tempdir.py	770 bytes	0644