def __init__(self, ipython0=None, *args, **kwargs):
""" Parameters
----------
ipython0: an optional ipython0 instance to use for command
prefiltering and completion.
"""
LineFrontEndBase.__init__(self, *args, **kwargs)
self.shell.output_trap = RedirectorOutputTrap(
out_callback=self.write,
err_callback=self.write,
)
self.shell.traceback_trap = SyncTracebackTrap(
formatters=self.shell.traceback_trap.formatters, )
# Start the ipython0 instance:
self.save_output_hooks()
if ipython0 is None:
# Instanciate an IPython0 InteractiveShell to be able to use the
# prefiltering.
# Suppress all key input, to avoid waiting
def my_rawinput(x=None):
return '\n'
old_rawinput = __builtin__.raw_input
__builtin__.raw_input = my_rawinput
ipython0 = InteractiveShell(
parent=None,
user_ns=self.shell.user_ns,
user_global_ns=self.shell.user_global_ns)
__builtin__.raw_input = old_rawinput
self.ipython0 = ipython0
# Set the pager:
self.ipython0.set_hook('show_in_pager',
lambda s, string: self.write("\n" + string))
self.ipython0.write = self.write
self._ip = _ip = self.ipython0
# Make sure the raw system call doesn't get called, as we don't
# have a stdin accessible.
self._ip.system = self.system_call
# XXX: Muck around with magics so that they work better
# in our environment
if not sys.platform.startswith('win'):
self.ipython0.magic_ls = mk_system_call(self.system_call, 'ls -CF')
# And now clean up the mess created by ipython0
self.release_output()
if not 'banner' in kwargs and self.banner is None:
self.banner = self.ipython0.banner
# FIXME: __init__ and start should be two different steps
self.start()
def __init__(self, ipython0=None, *args, **kwargs):
""" Parameters:
-----------
ipython0: an optional ipython0 instance to use for command
prefiltering and completion.
"""
LineFrontEndBase.__init__(self, *args, **kwargs)
self.shell.output_trap = RedirectorOutputTrap(
out_callback=self.write,
err_callback=self.write,
)
self.shell.traceback_trap = SyncTracebackTrap(
formatters=self.shell.traceback_trap.formatters,
)
# Start the ipython0 instance:
self.save_output_hooks()
if ipython0 is None:
# Instanciate an IPython0 interpreter to be able to use the
# prefiltering.
# XXX: argv=[] is a bit bold.
ipython0 = make_IPython(argv=[],
user_ns=self.shell.user_ns,
user_global_ns=self.shell.user_global_ns)
self.ipython0 = ipython0
# Set the pager:
self.ipython0.set_hook('show_in_pager',
lambda s, string: self.write("\n" + string))
self.ipython0.write = self.write
self._ip = _ip = IPApi(self.ipython0)
# Make sure the raw system call doesn't get called, as we don't
# have a stdin accessible.
self._ip.system = self.system_call
# XXX: Muck around with magics so that they work better
# in our environment
self.ipython0.magic_ls = mk_system_call(self.system_call,
'ls -CF')
# And now clean up the mess created by ipython0
self.release_output()
if not 'banner' in kwargs and self.banner is None:
self.banner = self.ipython0.BANNER + """
This is the wx frontend, by Gael Varoquaux. This is EXPERIMENTAL code."""
self.start()
def test_redirector_output_trap():
""" This test check not only that the redirector_output_trap does
trap the output, but also that it does it in a gready way, that
is by calling the callback ASAP.
"""
from IPython.kernel.core.redirector_output_trap import RedirectorOutputTrap
out = StringIO()
trap = RedirectorOutputTrap(out.write, out.write)
try:
trap.set()
for i in range(10):
os.system('echo %ic' % i)
print "%ip" % i
print >> out, i
except:
trap.unset()
raise
trap.unset()
result1 = out.getvalue()
result2 = "".join("%ic\n%ip\n%i\n" % (i, i, i) for i in range(10))
assert result1 == result2
def test_redirector_output_trap():
""" This test check not only that the redirector_output_trap does
trap the output, but also that it does it in a gready way, that
is by calling the callback ASAP.
"""
from IPython.kernel.core.redirector_output_trap import RedirectorOutputTrap
out = StringIO()
trap = RedirectorOutputTrap(out.write, out.write)
try:
trap.set()
for i in range(10):
os.system('echo %ic' % i)
print "%ip" % i
print >>out, i
except:
trap.unset()
raise
trap.unset()
result1 = out.getvalue()
result2 = "".join("%ic\n%ip\n%i\n" %(i, i, i) for i in range(10))
assert result1 == result2
def test_redirector_output_trap(self):
"""Check the greedy trapping behavior of the traps.
This test check not only that the redirector_output_trap does
trap the output, but also that it does it in a gready way, that
is by calling the callback ASAP.
"""
from IPython.kernel.core.redirector_output_trap import RedirectorOutputTrap
out = StringIO()
trap = RedirectorOutputTrap(out.write, out.write)
try:
trap.set()
for i in range(10):
os.system("echo %ic" % i)
print("%ip" % i)
print(i, file=out)
except:
trap.unset()
raise
trap.unset()
result1 = out.getvalue()
result2 = "".join("%ic\n%ip\n%i\n" % (i, i, i) for i in range(10))
self.assertEquals(result1, result2)
def __init__(self, ipython0=None, argv=None, *args, **kwargs):
""" Parameters
----------
ipython0: an optional ipython0 instance to use for command
prefiltering and completion.
argv : list, optional
Used as the instance's argv value. If not given, [] is used.
"""
if argv is None:
argv = []
# This is a hack to avoid the IPython exception hook to trigger
# on exceptions (https://bugs.launchpad.net/bugs/337105)
# XXX: This is horrible: module-leve monkey patching -> side
# effects.
from IPython import iplib
iplib.InteractiveShell.isthreaded = True
LineFrontEndBase.__init__(self, *args, **kwargs)
self.shell.output_trap = RedirectorOutputTrap(
out_callback=self.write,
err_callback=self.write,
)
self.shell.traceback_trap = SyncTracebackTrap(
formatters=self.shell.traceback_trap.formatters,
)
# Start the ipython0 instance:
self.save_output_hooks()
if ipython0 is None:
# Instanciate an IPython0 interpreter to be able to use the
# prefiltering.
# Suppress all key input, to avoid waiting
def my_rawinput(x=None):
return '\n'
old_rawinput = __builtin__.raw_input
__builtin__.raw_input = my_rawinput
# XXX: argv=[] is a bit bold.
ipython0 = make_IPython(argv=argv,
user_ns=self.shell.user_ns,
user_global_ns=self.shell.user_global_ns)
__builtin__.raw_input = old_rawinput
self.ipython0 = ipython0
# Set the pager:
self.ipython0.set_hook('show_in_pager',
lambda s, string: self.write("\n" + string))
self.ipython0.write = self.write
self._ip = _ip = IPApi(self.ipython0)
# Make sure the raw system call doesn't get called, as we don't
# have a stdin accessible.
self._ip.system = self.system_call
# XXX: Muck around with magics so that they work better
# in our environment
if not sys.platform.startswith('win'):
self.ipython0.magic_ls = mk_system_call(self.system_call,
'ls -CF')
# And now clean up the mess created by ipython0
self.release_output()
if not 'banner' in kwargs and self.banner is None:
self.banner = self.ipython0.BANNER
# FIXME: __init__ and start should be two different steps
self.start()
