require ipykernel

tools/Jupyter/kernel/README.md

@@ -2,17 +2,12 @@
 
 C++ Kernel for Jupyter with Cling.
 
-You will probably need to specify the path to cling with the `CLING_EXE` env variable.
-
-**Note:** This currently requires master of everything IPython and Jupyter because that's what I use,
-but I'll clean that up so it works on 3.x.
+Requires ipykernel ≥ 4.0
 
 ## Install
 
 To install the kernel:
 
-    jupyter kernelspec install cling
-
-or for IPython/Jupyter < 4:
-
-    ipython kernelspec install cling
+    pip install -e .
+    # register the kernelspec:
+    jupyter kernelspec install [--user] cling

tools/Jupyter/kernel/clingkernel.py

@@ -17,14 +17,9 @@ import select
 import sys
 import threading
 
-try:
-    from ipykernel.kernelapp import IPKernelApp
-except ImportError:
-    from IPython.kernel.zmq.kernelapp import IPKernelApp
-try:
-    from ipykernel.kernelbase import Kernel
-except ImportError:
-    from IPython.kernel.zmq.kernelbase import Kernel
+from traitlets import Unicode, Float
+from ipykernel.kernelapp import IPKernelApp
+from ipykernel.kernelbase import Kernel
 
 
 libc = ctypes.CDLL(None)
@@ -34,12 +29,6 @@ except ValueError:
     # libc.stdout is has a funny name on OS X
     c_stdout_p = ctypes.c_void_p.in_dll(libc, '__stdoutp')
 
-try:
-    from traitlets import Unicode, Float
-except ImportError:
-    from IPython.utils.traitlets import Unicode, Float
-
-
 
 class ClingKernel(Kernel):
     """Cling Kernel for Jupyter"""

tools/Jupyter/kernel/setup.py

@@ -65,10 +65,8 @@ if 'develop' in sys.argv or any(a.startswith('bdist') for a in sys.argv):
 
 setuptools_args = {}
 install_requires = setuptools_args['install_requires'] = [
-    'ipython',
-    'pyzmq',
-    'tornado',
-    'pexpect>=3.3',
+    'ipykernel',
+    'traitlets',
 ]
 
 if 'setuptools' in sys.modules: