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diff --git a/.emacs.d.back/.python-environments/default/lib/python3.7/site-packages/epc/client.py b/.emacs.d.back/.python-environments/default/lib/python3.7/site-packages/epc/client.py
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+# Copyright (C) 2012-  Takafumi Arakaki
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+from .py3compat import Queue
+from .utils import ThreadedIterator, newthread
+from .core import EPCCore
+from .handler import ThreadingEPCHandler
+
+
+class EPCClientHandler(ThreadingEPCHandler):
+
+    # In BaseRequestHandler, everything happen in `.__init__()`.
+    # Let's defer it to `.start()`.
+
+    def __init__(self, *args):
+        self._args = args
+        self._ready = Queue.Queue()
+
+    def start(self):
+        ThreadingEPCHandler.__init__(self, *self._args)
+
+    def setup(self):
+        ThreadingEPCHandler.setup(self)
+        self._ready.put(True)
+
+    def wait_until_ready(self):
+        self._ready.get()
+
+    def _recv(self):
+        self._recv_iter = ThreadedIterator(ThreadingEPCHandler._recv(self))
+        return self._recv_iter
+
+
+class EPCClient(EPCCore):
+
+    """
+    EPC client class to call remote functions and serve Python functions.
+
+    >>> client = EPCClient()
+    >>> client.connect(('localhost', 9999))                 #doctest: +SKIP
+    >>> client.call_sync('echo', [111, 222, 333])           #doctest: +SKIP
+    [111, 222, 333]
+
+    To serve Python functions, you can use :meth:`register_function`.
+
+    >>> client.register_function(str.upper)
+    <method 'upper' of 'str' objects>
+
+    :meth:`register_function` can be used as a decorator.
+
+    >>> @client.register_function
+    ... def add(x, y):
+    ...     return x + y
+
+    Also, you can initialize client and connect to the server by one line.
+
+    >>> client = EPCClient(('localhost', 9999))             #doctest: +SKIP
+
+    .. method:: call
+
+       Alias of :meth:`epc.server.EPCHandler.call`.
+
+    .. method:: call_sync
+
+       Alias of :meth:`epc.server.EPCHandler.call_sync`.
+
+    .. method:: methods
+
+       Alias of :meth:`epc.server.EPCHandler.methods`.
+
+    .. method:: methods_sync
+
+       Alias of :meth:`epc.server.EPCHandler.methods_sync`.
+
+    """
+
+    thread_daemon = True
+
+    def __init__(self, socket_or_address=None,
+                 debugger=None, log_traceback=False):
+        if socket_or_address is not None:
+            self.connect(socket_or_address)
+        EPCCore.__init__(self, debugger, log_traceback)
+
+    def connect(self, socket_or_address):
+        """
+        Connect to server and start serving registered functions.
+
+        :type socket_or_address: tuple or socket object
+        :arg  socket_or_address: A ``(host, port)`` pair to be passed
+                                 to `socket.create_connection`, or
+                                 a socket object.
+
+        """
+        if isinstance(socket_or_address, tuple):
+            import socket
+            self.socket = socket.create_connection(socket_or_address)
+        else:
+            self.socket = socket_or_address
+
+        # This is what BaseServer.finish_request does:
+        address = None  # it is not used, so leave it empty
+        self.handler = EPCClientHandler(self.socket, address, self)
+
+        self.call = self.handler.call
+        self.call_sync = self.handler.call_sync
+        self.methods = self.handler.methods
+        self.methods_sync = self.handler.methods_sync
+
+        self.handler_thread = newthread(self, target=self.handler.start)
+        self.handler_thread.daemon = self.thread_daemon
+        self.handler_thread.start()
+        self.handler.wait_until_ready()
+
+    def close(self):
+        """Close connection."""
+        try:
+            self.handler._recv_iter.stop()
+        except AttributeError:
+            # Do not fail to close even if the client is never used.
+            pass
+
+    def _ignore(*_):
+        """"Do nothing method for `EPCHandler`."""
+    add_client = _ignore
+    remove_client = _ignore