More code review changes:

* Added extension to the Sphinx docs.
* Fixed unicode issues.

docs/source/config/extensions/cythonmagic.txt

@@ -0,0 +1,7
+.. _extensions_cythonmagic:
+
+===========
+cythonmagic
+===========
+
+.. automodule:: IPython.extensions.cythonmagic

IPython/extensions/cythonmagic.py

@@ -1,180 +1,181
 # -*- coding: utf-8 -*-
 """
 Cython related magics.
 
 Author:
 * Brian Granger
 
 Parts of this code were taken from Cython.inline.
 """
 #-----------------------------------------------------------------------------
 # Copyright (C) 2010-2011, IPython Development Team.
 #
 # Distributed under the terms of the Modified BSD License.
 #
 # The full license is in the file COPYING.txt, distributed with this software.
 #-----------------------------------------------------------------------------
 
+import io
 import os, sys
 from importlib import import_module
 import imp
 
 try:
     import hashlib
 except ImportError:
     import md5 as hashlib
 
 from distutils.core import Distribution, Extension
 from distutils.command.build_ext import build_ext
 
 from IPython.core.magic import Magics, magics_class, cell_magic
 from IPython.testing.skipdoctest import skip_doctest
 from IPython.core.magic_arguments import (
     argument, magic_arguments, parse_argstring
 )
+from IPython.utils import py3compat
 
 import Cython
 from Cython.Compiler.Errors import CompileError
 from Cython.Compiler.Main import Context, default_options
 from Cython.Build.Dependencies import cythonize
 
 
 @magics_class
 class CythonMagics(Magics):
 
     def __init__(self, shell):
         super(CythonMagics,self).__init__(shell)
         self._reloads = {}
         self._code_cache = {}
 
     def _import_all(self, module):
         for k,v in module.__dict__.items():
             if not k.startswith('__'):
                 self.shell.push({k:v})
 
     @cell_magic
     def cython_inline(self, line, cell):
         """Compile and run a Cython code cell using Cython.inline.
 
         This magic simply passes the body of the cell to Cython.inline
         and returns the result. If the variables `a` and `b` are defined
         in the user's namespace, here is a simple example that returns
         their sum::
         
             %%cython_inline
             return a+b
 
         For most purposes, we recommend the usage of the `%%cython` magic.
         """
         locs = self.shell.user_global_ns
         globs = self.shell.user_ns
         return Cython.inline(cell, locals=locs, globals=globs)
 
     @cell_magic
     def cython_pyximport(self, line, cell):
         """Compile and import a Cython code cell using pyximport.
 
         The contents of the cell are written to a `.pyx` file in the current
         working directory, which is then imported using `pyximport`. This
         magic requires a module name to be passed::
         
             %%cython_pyximport modulename
             def f(x):
                 return 2.0*x
 
         The compiled module is then imported and all of its symbols are injected into
         the user's namespace. For most purposes, we recommend the usage of the
         `%%cython` magic.
         """
         module_name = line.strip()
         if not module_name:
             raise ValueError('module name must be given')
         fname = module_name + '.pyx'
-        with io.open(fname, 'w', encoding='utf-8'):
+        with io.open(fname, 'w', encoding='utf-8') as f:
             f.write(cell)
         if 'pyximport' not in sys.modules:
             import pyximport
             pyximport.install(reload_support=True)
         if module_name in self._reloads:
             module = self._reloads[module_name]
             reload(module)
         else:
             module = import_module(module_name)
             self._reloads[module_name] = module
         self._import_all(module)
 
     @magic_arguments()
     @argument(
         '-f', '--force', action='store_true', default=False,
         help="Force the compilation of the pyx module even if it hasn't changed"
     )
     @cell_magic
     def cython(self, line, cell):
         """Compile and import everything from a Cython code cell.
 
         The contents of the cell are written to a `.pyx` file in the
         directory `IPYTHONDIR/cython` using a filename with the hash of the code.
         This file is then cythonized and compiled. The resulting module
         is imported and all of its symbols are injected into the user's
         namespace. The usage is similar to that of `%%cython_pyximport` but
         you don't have to pass a module name::
 
         %%cython
         def f(x):
             return 2.0*x
         """
         args = parse_argstring(self.cython, line)
         code = cell if cell.endswith('\n') else cell+'\n'
-        # distutils.Extension cannot handle sources that a unicode
-        lib_dir=str(os.path.join(self.shell.ipython_dir,'cython'))
+        lib_dir=os.path.join(self.shell.ipython_dir, 'cython')
         cython_include_dirs=['.']
         force=args.force
         quiet=True
         ctx = Context(cython_include_dirs, default_options)
         key = code, sys.version_info, sys.executable, Cython.__version__
         module_name = "_cython_magic_" + hashlib.md5(str(key).encode('utf-8')).hexdigest()
         so_ext = [ ext for ext,_,mod_type in imp.get_suffixes() if mod_type == imp.C_EXTENSION ][0]
         module_path = os.path.join(lib_dir, module_name+so_ext)
 
         if not os.path.exists(lib_dir):
             os.makedirs(lib_dir)
 
         if force or not os.path.isfile(module_path):
             cflags = []
             c_include_dirs = []
             if 'numpy' in code:
                 import numpy
                 c_include_dirs.append(numpy.get_include())
             pyx_file = os.path.join(lib_dir, module_name + '.pyx')
-            with io.open(pyx_file, 'w', encoding='utf-8'):
+            pyx_file = py3compat.unicode_to_str(pyx_file, encoding=sys.getfilesystemencoding())
+            with io.open(pyx_file, 'w', encoding='utf-8') as f:
                 f.write(code)
-            print [pyx_file]
             extension = Extension(
                 name = module_name,
                 sources = [pyx_file],
                 include_dirs = c_include_dirs,
                 extra_compile_args = cflags
             )
             build_extension = build_ext(Distribution())
             build_extension.finalize_options()
             try:
                 build_extension.extensions = cythonize([extension], ctx=ctx, quiet=quiet)
             except CompileError:
                 return
             build_extension.build_temp = os.path.dirname(pyx_file)
             build_extension.build_lib  = lib_dir
             build_extension.run()
             self._code_cache[key] = module_name
 
         module = imp.load_dynamic(module_name, module_path)
         self._import_all(module)
 
 
 _loaded = False
 
 def load_ipython_extension(ip):
     """Load the extension in IPython."""
     global _loaded
     if not _loaded:
         ip.register_magics(CythonMagics)
         _loaded = True

IPython/extensions/tests/test_cythonmagic.py

@@ -1,45 +1,47
 # -*- coding: utf-8 -*-
 """Tests for the Cython magics extension."""
 
 import os
 import nose.tools as nt
 
+from IPython.utils import py3compat
 
-code = """def f(x):
+code = py3compat.str_to_unicode("""def f(x):
     return 2*x
-"""
+""")
 
 try:
     import Cython
 except:
     __test__ = False
 
 def setup():
     ip = get_ipython()
     ip.extension_manager.load_extension('cythonmagic')
 
 def test_cython_inline():
     ip = get_ipython()
     ip.ex('a=10; b=20')
     result = ip.run_cell_magic('cython_inline','','return a+b')
     nt.assert_equals(result, 30)
 
 def test_cython_pyximport():
     module_name = '_test_cython_pyximport'
     ip = get_ipython()
     ip.run_cell_magic('cython_pyximport', module_name, code)
     ip.ex('g = f(10)')
     nt.assert_equals(ip.user_ns['g'], 20.0)
     try:
         os.remove(module_name+'.pyx')
     except OSError:
         pass
 
 def test_cython():
     ip = get_ipython()
     ip.run_cell_magic('cython', '', code)
     ip.ex('g = f(10)')
-    nt.assert_equals(ip.user_ns['g'], 20.0)        
+    nt.assert_equals(ip.user_ns['g'], 20.0)
+    
 
 
 

IPython/testing/iptest.py

@@ -1,524 +1,528
 # -*- coding: utf-8 -*-
 """IPython Test Suite Runner.
 
 This module provides a main entry point to a user script to test IPython
 itself from the command line. There are two ways of running this script:
 
 1. With the syntax `iptest all`.  This runs our entire test suite by
    calling this script (with different arguments) recursively.  This
    causes modules and package to be tested in different processes, using nose
    or trial where appropriate.
 2. With the regular nose syntax, like `iptest -vvs IPython`.  In this form
    the script simply calls nose, but with special command line flags and
    plugins loaded.
 
 """
 
 #-----------------------------------------------------------------------------
 #  Copyright (C) 2009-2011  The IPython Development Team
 #
 #  Distributed under the terms of the BSD License.  The full license is in
 #  the file COPYING, distributed as part of this software.
 #-----------------------------------------------------------------------------
 
 #-----------------------------------------------------------------------------
 # Imports
 #-----------------------------------------------------------------------------
 
 # Stdlib
 import os
 import os.path as path
 import signal
 import sys
 import subprocess
 import tempfile
 import time
 import warnings
 
 # Note: monkeypatch!
 # We need to monkeypatch a small problem in nose itself first, before importing
 # it for actual use.  This should get into nose upstream, but its release cycle
 # is slow and we need it for our parametric tests to work correctly.
 from IPython.testing import nosepatch
 # Now, proceed to import nose itself
 import nose.plugins.builtin
 from nose.plugins.xunit import Xunit
 from nose import SkipTest
 from nose.core import TestProgram
 
 # Our own imports
 from IPython.utils.importstring import import_item
 from IPython.utils.path import get_ipython_module_path
 from IPython.utils.process import find_cmd, pycmd2argv
 from IPython.utils.sysinfo import sys_info
 
 from IPython.testing import globalipapp
 from IPython.testing.plugin.ipdoctest import IPythonDoctest
 from IPython.external.decorators import KnownFailure, knownfailureif
 
 pjoin = path.join
 
 
 #-----------------------------------------------------------------------------
 # Globals
 #-----------------------------------------------------------------------------
 
 
 #-----------------------------------------------------------------------------
 # Warnings control
 #-----------------------------------------------------------------------------
 
 # Twisted generates annoying warnings with Python 2.6, as will do other code
 # that imports 'sets' as of today
 warnings.filterwarnings('ignore', 'the sets module is deprecated',
                         DeprecationWarning )
 
 # This one also comes from Twisted
 warnings.filterwarnings('ignore', 'the sha module is deprecated',
                         DeprecationWarning)
 
 # Wx on Fedora11 spits these out
 warnings.filterwarnings('ignore', 'wxPython/wxWidgets release number mismatch',
                         UserWarning)
 
 # ------------------------------------------------------------------------------
 # Monkeypatch Xunit to count known failures as skipped.
 # ------------------------------------------------------------------------------
 def monkeypatch_xunit():
     try:
         knownfailureif(True)(lambda: None)()
     except Exception as e:
         KnownFailureTest = type(e)
 
     def addError(self, test, err, capt=None):
         if issubclass(err[0], KnownFailureTest):
             err = (SkipTest,) + err[1:]
         return self.orig_addError(test, err, capt)
 
     Xunit.orig_addError = Xunit.addError
     Xunit.addError = addError
 
 #-----------------------------------------------------------------------------
 # Logic for skipping doctests
 #-----------------------------------------------------------------------------
 def extract_version(mod):
     return mod.__version__
 
 def test_for(item, min_version=None, callback=extract_version):
     """Test to see if item is importable, and optionally check against a minimum
     version.
 
     If min_version is given, the default behavior is to check against the
     `__version__` attribute of the item, but specifying `callback` allows you to
     extract the value you are interested in. e.g::
 
         In [1]: import sys
 
         In [2]: from IPython.testing.iptest import test_for
 
         In [3]: test_for('sys', (2,6), callback=lambda sys: sys.version_info)
         Out[3]: True
 
     """
     try:
         check = import_item(item)
     except (ImportError, RuntimeError):
         # GTK reports Runtime error if it can't be initialized even if it's
         # importable.
         return False
     else:
         if min_version:
             if callback:
                 # extra processing step to get version to compare
                 check = callback(check)
 
             return check >= min_version
         else:
             return True
 
 # Global dict where we can store information on what we have and what we don't
 # have available at test run time
 have = {}
 
 have['curses'] = test_for('_curses')
 have['matplotlib'] = test_for('matplotlib')
 have['pexpect'] = test_for('IPython.external.pexpect')
 have['pymongo'] = test_for('pymongo')
 have['wx'] = test_for('wx')
 have['wx.aui'] = test_for('wx.aui')
 have['qt'] = test_for('IPython.external.qt')
 have['sqlite3'] = test_for('sqlite3')
+have['cython'] = test_for('Cython')
 
 have['tornado'] = test_for('tornado.version_info', (2,1,0), callback=None)
 
 if os.name == 'nt':
     min_zmq = (2,1,7)
 else:
     min_zmq = (2,1,4)
 
 def version_tuple(mod):
     "turn '2.1.9' into (2,1,9), and '2.1dev' into (2,1,999)"
     # turn 'dev' into 999, because Python3 rejects str-int comparisons
     vs = mod.__version__.replace('dev', '.999')
     tup = tuple([int(v) for v in vs.split('.') ])
     return tup
 
 have['zmq'] = test_for('zmq', min_zmq, version_tuple)
 
 #-----------------------------------------------------------------------------
 # Functions and classes
 #-----------------------------------------------------------------------------
 
 def report():
     """Return a string with a summary report of test-related variables."""
 
     out = [ sys_info(), '\n']
 
     avail = []
     not_avail = []
 
     for k, is_avail in have.items():
         if is_avail:
             avail.append(k)
         else:
             not_avail.append(k)
 
     if avail:
         out.append('\nTools and libraries available at test time:\n')
         avail.sort()
         out.append('   ' + ' '.join(avail)+'\n')
 
     if not_avail:
         out.append('\nTools and libraries NOT available at test time:\n')
         not_avail.sort()
         out.append('   ' + ' '.join(not_avail)+'\n')
 
     return ''.join(out)
 
 
 def make_exclude():
     """Make patterns of modules and packages to exclude from testing.
 
     For the IPythonDoctest plugin, we need to exclude certain patterns that
     cause testing problems.  We should strive to minimize the number of
     skipped modules, since this means untested code.
 
     These modules and packages will NOT get scanned by nose at all for tests.
     """
     # Simple utility to make IPython paths more readably, we need a lot of
     # these below
     ipjoin = lambda *paths: pjoin('IPython', *paths)
 
     exclusions = [ipjoin('external'),
                   pjoin('IPython_doctest_plugin'),
                   ipjoin('quarantine'),
                   ipjoin('deathrow'),
                   ipjoin('testing', 'attic'),
                   # This guy is probably attic material
                   ipjoin('testing', 'mkdoctests'),
                   # Testing inputhook will need a lot of thought, to figure out
                   # how to have tests that don't lock up with the gui event
                   # loops in the picture
                   ipjoin('lib', 'inputhook'),
                   # Config files aren't really importable stand-alone
                   ipjoin('config', 'default'),
                   ipjoin('config', 'profile'),
                   ]
     if not have['sqlite3']:
         exclusions.append(ipjoin('core', 'tests', 'test_history'))
         exclusions.append(ipjoin('core', 'history'))
     if not have['wx']:
         exclusions.append(ipjoin('lib', 'inputhookwx'))
 
     # We do this unconditionally, so that the test suite doesn't import
     # gtk, changing the default encoding and masking some unicode bugs.
     exclusions.append(ipjoin('lib', 'inputhookgtk'))
     exclusions.append(ipjoin('zmq', 'gui', 'gtkembed'))
 
     # These have to be skipped on win32 because the use echo, rm, cd, etc.
     # See ticket https://github.com/ipython/ipython/issues/87
     if sys.platform == 'win32':
         exclusions.append(ipjoin('testing', 'plugin', 'test_exampleip'))
         exclusions.append(ipjoin('testing', 'plugin', 'dtexample'))
 
     if not have['pexpect']:
         exclusions.extend([ipjoin('scripts', 'irunner'),
                            ipjoin('lib', 'irunner'),
                            ipjoin('lib', 'tests', 'test_irunner'),
                            ipjoin('frontend', 'terminal', 'console'),
                            ])
 
     if not have['zmq']:
         exclusions.append(ipjoin('zmq'))
         exclusions.append(ipjoin('frontend', 'qt'))
         exclusions.append(ipjoin('frontend', 'html'))
         exclusions.append(ipjoin('frontend', 'consoleapp.py'))
         exclusions.append(ipjoin('frontend', 'terminal', 'console'))
         exclusions.append(ipjoin('parallel'))
     elif not have['qt']:
         exclusions.append(ipjoin('frontend', 'qt'))
 
     if not have['pymongo']:
         exclusions.append(ipjoin('parallel', 'controller', 'mongodb'))
         exclusions.append(ipjoin('parallel', 'tests', 'test_mongodb'))
 
     if not have['matplotlib']:
         exclusions.extend([ipjoin('core', 'pylabtools'),
                            ipjoin('core', 'tests', 'test_pylabtools'),
                            ipjoin('zmq', 'pylab'),
         ])
 
+    if not have['cython']:
+        exclusions.extend([ipjoin('extensions', 'cythonmagic')])
+
     if not have['tornado']:
         exclusions.append(ipjoin('frontend', 'html'))
 
     # This is needed for the reg-exp to match on win32 in the ipdoctest plugin.
     if sys.platform == 'win32':
         exclusions = [s.replace('\\','\\\\') for s in exclusions]
 
     return exclusions
 
 
 class IPTester(object):
     """Call that calls iptest or trial in a subprocess.
     """
     #: string, name of test runner that will be called
     runner = None
     #: list, parameters for test runner
     params = None
     #: list, arguments of system call to be made to call test runner
     call_args = None
     #: list, process ids of subprocesses we start (for cleanup)
     pids = None
     #: str, coverage xml output file
     coverage_xml = None
 
     def __init__(self, runner='iptest', params=None):
         """Create new test runner."""
         p = os.path
         if runner == 'iptest':
             iptest_app = get_ipython_module_path('IPython.testing.iptest')
             self.runner = pycmd2argv(iptest_app) + sys.argv[1:]
         else:
             raise Exception('Not a valid test runner: %s' % repr(runner))
         if params is None:
             params = []
         if isinstance(params, str):
             params = [params]
         self.params = params
 
         # Assemble call
         self.call_args = self.runner+self.params
         
         # Find the section we're testing (IPython.foo)
         for sect in self.params:
             if sect.startswith('IPython'): break
         else:
             raise ValueError("Section not found", self.params)
         
         if '--with-xunit' in self.call_args:
             self.call_args.append('--xunit-file=%s' % path.abspath(sect+'.xunit.xml'))
         
         if '--with-xml-coverage' in self.call_args:
             self.coverage_xml = path.abspath(sect+".coverage.xml")
             self.call_args.remove('--with-xml-coverage')
             self.call_args = ["coverage", "run", "--source="+sect] + self.call_args[1:]
 
         # Store pids of anything we start to clean up on deletion, if possible
         # (on posix only, since win32 has no os.kill)
         self.pids = []
 
     if sys.platform == 'win32':
         def _run_cmd(self):
             # On Windows, use os.system instead of subprocess.call, because I
             # was having problems with subprocess and I just don't know enough
             # about win32 to debug this reliably.  Os.system may be the 'old
             # fashioned' way to do it, but it works just fine.  If someone
             # later can clean this up that's fine, as long as the tests run
             # reliably in win32.
             # What types of problems are you having. They may be related to
             # running Python in unboffered mode. BG.
             return os.system(' '.join(self.call_args))
     else:
         def _run_cmd(self):
             # print >> sys.stderr, '*** CMD:', ' '.join(self.call_args) # dbg
             subp = subprocess.Popen(self.call_args)
             self.pids.append(subp.pid)
             # If this fails, the pid will be left in self.pids and cleaned up
             # later, but if the wait call succeeds, then we can clear the
             # stored pid.
             retcode = subp.wait()
             self.pids.pop()
             return retcode
 
     def run(self):
         """Run the stored commands"""
         try:
             retcode = self._run_cmd()
         except:
             import traceback
             traceback.print_exc()
             return 1  # signal failure
         
         if self.coverage_xml:
             subprocess.call(["coverage", "xml", "-o", self.coverage_xml])
         return retcode
 
     def __del__(self):
         """Cleanup on exit by killing any leftover processes."""
 
         if not hasattr(os, 'kill'):
             return
 
         for pid in self.pids:
             try:
                 print 'Cleaning stale PID:', pid
                 os.kill(pid, signal.SIGKILL)
             except OSError:
                 # This is just a best effort, if we fail or the process was
                 # really gone, ignore it.
                 pass
 
 
 def make_runners():
     """Define the top-level packages that need to be tested.
     """
 
     # Packages to be tested via nose, that only depend on the stdlib
     nose_pkg_names = ['config', 'core', 'extensions', 'frontend', 'lib',
                      'scripts', 'testing', 'utils', 'nbformat' ]
 
     if have['zmq']:
         nose_pkg_names.append('zmq')
         nose_pkg_names.append('parallel')
 
     # For debugging this code, only load quick stuff
     #nose_pkg_names = ['core', 'extensions']  # dbg
 
     # Make fully qualified package names prepending 'IPython.' to our name lists
     nose_packages = ['IPython.%s' % m for m in nose_pkg_names ]
 
     # Make runners
     runners = [ (v, IPTester('iptest', params=v)) for v in nose_packages ]
 
     return runners
 
 
 def run_iptest():
     """Run the IPython test suite using nose.
 
     This function is called when this script is **not** called with the form
     `iptest all`.  It simply calls nose with appropriate command line flags
     and accepts all of the standard nose arguments.
     """
     # Apply our monkeypatch to Xunit
     if '--with-xunit' in sys.argv and not hasattr(Xunit, 'orig_addError'):
         monkeypatch_xunit()
 
     warnings.filterwarnings('ignore',
         'This will be removed soon.  Use IPython.testing.util instead')
 
     argv = sys.argv + [ '--detailed-errors',  # extra info in tracebacks
 
                         '--with-ipdoctest',
                         '--ipdoctest-tests','--ipdoctest-extension=txt',
 
                         # We add --exe because of setuptools' imbecility (it
                         # blindly does chmod +x on ALL files).  Nose does the
                         # right thing and it tries to avoid executables,
                         # setuptools unfortunately forces our hand here.  This
                         # has been discussed on the distutils list and the
                         # setuptools devs refuse to fix this problem!
                         '--exe',
                         ]
 
     if nose.__version__ >= '0.11':
         # I don't fully understand why we need this one, but depending on what
         # directory the test suite is run from, if we don't give it, 0 tests
         # get run.  Specifically, if the test suite is run from the source dir
         # with an argument (like 'iptest.py IPython.core', 0 tests are run,
         # even if the same call done in this directory works fine).  It appears
         # that if the requested package is in the current dir, nose bails early
         # by default.  Since it's otherwise harmless, leave it in by default
         # for nose >= 0.11, though unfortunately nose 0.10 doesn't support it.
         argv.append('--traverse-namespace')
 
     # use our plugin for doctesting.  It will remove the standard doctest plugin
     # if it finds it enabled
     plugins = [IPythonDoctest(make_exclude()), KnownFailure()]
     # We need a global ipython running in this process
     globalipapp.start_ipython()
     # Now nose can run
     TestProgram(argv=argv, addplugins=plugins)
 
 
 def run_iptestall():
     """Run the entire IPython test suite by calling nose and trial.
 
     This function constructs :class:`IPTester` instances for all IPython
     modules and package and then runs each of them.  This causes the modules
     and packages of IPython to be tested each in their own subprocess using
     nose.
     """
 
     runners = make_runners()
 
     # Run the test runners in a temporary dir so we can nuke it when finished
     # to clean up any junk files left over by accident.  This also makes it
     # robust against being run in non-writeable directories by mistake, as the
     # temp dir will always be user-writeable.
     curdir = os.getcwdu()
     testdir = tempfile.gettempdir()
     os.chdir(testdir)
 
     # Run all test runners, tracking execution time
     failed = []
     t_start = time.time()
     try:
         for (name, runner) in runners:
             print '*'*70
             print 'IPython test group:',name
             res = runner.run()
             if res:
                 failed.append( (name, runner) )
     finally:
         os.chdir(curdir)
     t_end = time.time()
     t_tests = t_end - t_start
     nrunners = len(runners)
     nfail = len(failed)
     # summarize results
     print
     print '*'*70
     print 'Test suite completed for system with the following information:'
     print report()
     print 'Ran %s test groups in %.3fs' % (nrunners, t_tests)
     print
     print 'Status:'
     if not failed:
         print 'OK'
     else:
         # If anything went wrong, point out what command to rerun manually to
         # see the actual errors and individual summary
         print 'ERROR - %s out of %s test groups failed.' % (nfail, nrunners)
         for name, failed_runner in failed:
             print '-'*40
             print 'Runner failed:',name
             print 'You may wish to rerun this one individually, with:'
             print ' '.join(failed_runner.call_args)
             print
         # Ensure that our exit code indicates failure
         sys.exit(1)
 
 
 def main():
     for arg in sys.argv[1:]:
         if arg.startswith('IPython'):
             # This is in-process
             run_iptest()
     else:
         # This starts subprocesses
         run_iptestall()
 
 
 if __name__ == '__main__':
     main()

docs/source/config/extensions/index.txt

@@ -1,76 +1,77
 .. _extensions_overview:
 
 ==================
 IPython extensions
 ==================
 
 Configuration files are just the first level of customization that IPython
 supports. The next level is that of extensions. An IPython extension is an
 importable Python module that has a a few special function. By defining these
 functions, users can customize IPython by accessing the actual runtime objects
 of IPython.  Here is a sample extension::
 
     # myextension.py
 
     def load_ipython_extension(ipython):
         # The ``ipython`` argument is the currently active 
         # :class:`InteractiveShell` instance that can be used in any way.
         # This allows you do to things like register new magics, plugins or
         # aliases.
 
     def unload_ipython_extension(ipython):
         # If you want your extension to be unloadable, put that logic here.
 
 This :func:`load_ipython_extension` function is called after your extension is
 imported and the currently active :class:`InteractiveShell` instance is passed
 as the only argument. You can do anything you want with IPython at that point.
 
 The :func:`load_ipython_extension` will be called again is you load or reload
 the extension again. It is up to the extension author to add code to manage
 that.
 
 Useful :class:`InteractiveShell` methods include :meth:`~IPython.core.interactiveshell.InteractiveShell.define_magic`, 
 :meth:`~IPython.core.interactiveshell.InteractiveShell.push` (to add variables to the user namespace) and 
 :meth:`~IPython.core.interactiveshell.InteractiveShell.drop_by_id` (to remove variables on unloading).
 
 You can put your extension modules anywhere you want, as long as they can be
 imported by Python's standard import mechanism. However, to make it easy to
 write extensions, you can also put your extensions in
 ``os.path.join(self.ipython_dir, 'extensions')``. This directory is added to
 ``sys.path`` automatically.
 
 Using extensions
 ================
 
 There are two ways you can tell IPython to use your extension:
 
 1. Listing it in a configuration file.
 2. Using the ``%load_ext`` magic function.
 
 To load an extension called :file:`myextension.py` add the following logic
 to your configuration file::
 
     c.InteractiveShellApp.extensions = [
         'myextension'
     ]
 
 To load that same extension at runtime, use the ``%load_ext`` magic:
 
 .. sourcecode:: ipython
 
     In [1]: %load_ext myextension
 
 To summarize, in conjunction with configuration files and profiles, IPython
 extensions give you complete and flexible control over your IPython
 setup.
 
 Extensions bundled with IPython
 ===============================
 
 .. toctree::
    :maxdepth: 1
 
    autoreload
+   cythonmagic
    parallelmagic
    storemagic
    sympyprinting