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from __future__ import absolute_import, division, print_function
from glue.core.command import CommandStack
from glue.core.data_collection import DataCollection
class Session(object):
def __init__(self, application=None, data_collection=None,
command_stack=None, hub=None):
# applications can be added after instantiation
self.application = application
self.data_collection = data_collection or DataCollection()
self.hub = self.data_collection.hub
self.command_stack = command_stack or CommandStack()
self.command_stack.session = self
# set the global data_collection for subset updates
from glue.core.edit_subset_mode import EditSubsetMode
EditSubsetMode().data_collection = self.data_collection
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