Two step install process

Python packaging is moving towards wheels; don't try to install the
kernelspec as part of pip installation.

Switch to flit for packaging

MANIFEST.in

@@ -1 +0,0 @@
-include README.rst

README.rst

@@ -2,7 +2,12 @@ A simple IPython kernel for bash
 
 This requires IPython 3.
 
-To use it, install with ``pip install bash_kernel``, and then run one of:
+To install::
+
+    pip install bash_kernel
+    python -m bash_kernel.install
+
+To use it, run one of:
 
 .. code:: shell
 
@@ -11,7 +16,7 @@ To use it, install with ``pip install bash_kernel``, and then run one of:
     ipython qtconsole --kernel bash
     ipython console --kernel bash
 
-For details of how this works, see IPython's docs on `wrapper kernels
-<http://ipython.org/ipython-doc/dev/development/wrapperkernels.html>`_, and
+For details of how this works, see the Jupyter docs on `wrapper kernels
+<http://jupyter-client.readthedocs.org/en/latest/wrapperkernels.html>`_, and
 Pexpect's docs on the `replwrap module
 <http://pexpect.readthedocs.org/en/latest/api/replwrap.html>`_

bash_kernel/__init__.py

@@ -1 +1,3 @@
+"""A bash kernel for Jupyter"""
+
 __version__ = '0.3'

bash_kernel/install.py

@@ -0,0 +1,29 @@
+import json
+import os
+import sys
+
+from IPython.kernel.kernelspec import install_kernel_spec
+from IPython.utils.tempdir import TemporaryDirectory
+
+kernel_json = {"argv":[sys.executable,"-m","bash_kernel", "-f", "{connection_file}"],
+ "display_name":"Bash",
+ "language":"bash",
+ "codemirror_mode":"shell",
+ "env":{"PS1": "$"}
+}
+
+def install_my_kernel_spec(user=True):
+    with TemporaryDirectory() as td:
+        os.chmod(td, 0o755) # Starts off as 700, not user readable
+        with open(os.path.join(td, 'kernel.json'), 'w') as f:
+            json.dump(kernel_json, f, sort_keys=True)
+        # TODO: Copy resources once they're specified
+
+        print('Installing IPython kernel spec')
+        install_kernel_spec(td, 'bash', user=user, replace=True)
+
+def main(argv=None):
+    install_my_kernel_spec()
+
+if __name__ == '__main__':
+    main()

flit.ini

@@ -0,0 +1,11 @@
+[metadata]
+module = bash_kernel
+author = Thomas Kluyver
+author-email = thomas@kluyver.me.uk
+home-page = https://github.com/takluyver/bash_kernel
+requires = pexpect (>=3.3)
+description-file = README.rst
+classifiers = Framework :: IPython
+    License :: OSI Approved :: BSD License
+    Programming Language :: Python :: 3
+    Topic :: System :: Shells

setup.py

@@ -1,56 +0,0 @@
-from distutils.core import setup
-from distutils.command.install import install
-from distutils import log
-import json
-import os
-import sys
-
-kernel_json = {"argv":[sys.executable,"-m","bash_kernel", "-f", "{connection_file}"],
- "display_name":"Bash",
- "language":"bash",
- "codemirror_mode":"shell",
- "env":{"PS1": "$"}
-}
-
-class install_with_kernelspec(install):
-    def run(self):
-        # Regular installation
-        install.run(self)
-
-        # Now write the kernelspec
-        from IPython.kernel.kernelspec import install_kernel_spec
-        from IPython.utils.tempdir import TemporaryDirectory
-        with TemporaryDirectory() as td:
-            os.chmod(td, 0o755) # Starts off as 700, not user readable
-            with open(os.path.join(td, 'kernel.json'), 'w') as f:
-                json.dump(kernel_json, f, sort_keys=True)
-            # TODO: Copy resources once they're specified
-
-            log.info('Installing IPython kernel spec')
-            install_kernel_spec(td, 'bash', user=self.user, replace=True)
-
-with open('README.rst') as f:
-    readme = f.read()
-
-svem_flag = '--single-version-externally-managed'
-if svem_flag in sys.argv:
-    # Die, setuptools, die.
-    sys.argv.remove(svem_flag)
-
-setup(name='bash_kernel',
-      version='0.3',
-      description='A bash kernel for IPython',
-      long_description=readme,
-      author='Thomas Kluyver',
-      author_email='thomas@kluyver.me.uk',
-      url='https://github.com/takluyver/bash_kernel',
-      packages=['bash_kernel'],
-      cmdclass={'install': install_with_kernelspec},
-      install_requires=['pexpect>=3.3'],
-      classifiers = [
-          'Framework :: IPython',
-          'License :: OSI Approved :: BSD License',
-          'Programming Language :: Python :: 3',
-          'Topic :: System :: Shells',
-      ]
-)