def _start_kernel_with_cmd(self, kernel_cmd, extra_env, **kwargs):
"""Start a new kernel, and return its Manager and Client"""
km = KernelManager(kernel_name='signaltest')
km.kernel_cmd = kernel_cmd
km.extra_env = extra_env
km.start_kernel(**kwargs)
kc = km.client()
kc.start_channels()
try:
kc.wait_for_ready(timeout=60)
except RuntimeError:
kc.stop_channels()
km.shutdown_kernel()
raise
return km, kc
def start_kernel_w_env():
kernel_cmd = [sys.executable,
'-m', 'jupyter_client.tests.signalkernel',
'-f', '{connection_file}']
extra_env = {'TEST_VARS': '${TEST_VARS}:test_var_2'}
km = KernelManager(kernel_name='signaltest')
km.kernel_cmd = kernel_cmd
km.extra_env = extra_env
km.start_kernel()
kc = km.client()
kc.start_channels()
kc.wait_for_ready(timeout=60)
yield km, kc
kc.stop_channels()
km.shutdown_kernel()
