text: # Copyright 2019 TWO SIGMA OPEN SOURCE, LLC  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #        http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  from IPython import get_ipython
  from IPython.core.magic import (magics_class, cell_magic, Magics)
  from beakerx_magics import KernelMagics
  from ipykernel.zmqshell import ZMQInteractiveShell
  
  
  @magics_class
  class KernelRunnerMagic(Magics):
  
      kernels = {}
  
      def __init__(self, shell):
          super(KernelRunnerMagic, self).__init__(shell)
  
      @cell_magic
      def kernel(self, line, cell):
          if line not in self.kernels:
              km = KernelMagics(self.shell)
              km.start(line)
              self.kernels[line] = km
  
          return self.kernels[line].run_cell(line, cell)
  
  
  def load_ipython_extension(ipython):
      if isinstance(ipython, ZMQInteractiveShell):
          ipython.register_magics(KernelRunnerMagic)
  
  
  if __name__ == '__main__':
      ip = get_ipython()
      ip.register_magics(KernelRunnerMagic)
  