def runsource(self, source, filename='<input>', symbol='single'):
if self._is_native:
return InteractiveShell.runsource(self, source, filename, symbol)
source=source.encode(self.stdin_encoding)
if source[:1] in [' ', '\t']:
source = 'if 1:\n%s' % source
try:
code = self.compile(source, filename, symbol)
except (OverflowError, SyntaxError, ValueError, TypeError, MemoryError):
# Case 1
self.showsyntaxerror(filename)
return None
if code is None:
# Case 2
return True
# Case 3
#print "\n Code to translate:\n" + source + "\n"
if source.startswith('_ip.'):
# This is IPython Magick stuff. Run in native interpreter:
return InteractiveShell.runsource(self, source, filename, symbol)
# Translate
try:
jscode, imppy, impjs = self._js_int.translate(source)
self.code_to_run = jscode
except Exception, e:
print_exc()
return None
def runsource(self, source, filename="<input>", symbol="single"):
"""Compile and run some source in the interpreter.
Modified version of code.py's runsource(), to handle threading issues.
See the original for full docstring details."""
# If Ctrl-C was typed, we reset the flag and return right away
if shellglobals.KBINT:
shellglobals.KBINT = False
return False
if self._kill:
# can't queue new code if we are being killed
return True
try:
code = self.compile(source, filename, symbol)
except (OverflowError, SyntaxError, ValueError):
# Case 1
self.showsyntaxerror(filename)
return False
if code is None:
# Case 2
return True
# shortcut - if we are in worker thread, or the worker thread is not running,
# execute directly (to allow recursion and prevent deadlock if code is run early
# in IPython construction)
if (not self.reactor_started or (self.worker_ident is None and not self.first_run)
or self.worker_ident == thread.get_ident() or shellglobals.run_in_frontend(source)):
InteractiveShell.runcode(self,code)
return
# Case 3
# Store code in queue, so the execution thread can handle it.
self.first_run = False
completed_ev, received_ev = threading.Event(), threading.Event()
self.code_queue.put((code,completed_ev, received_ev))
reactor.callLater(0.0,self.runcode)
received_ev.wait(5)
if not received_ev.isSet():
# the mainloop is dead, start executing code directly
print "Warning: Timeout for mainloop thread exceeded"
print "switching to nonthreaded mode (until mainloop wakes up again)"
self.worker_ident = None
else:
completed_ev.wait()
return False
def runcode(self):
"""Execute a code object.
Multithreaded wrapper around IPython's runcode()."""
global CODE_RUN
# Exceptions need to be raised differently depending on which thread is
# active
CODE_RUN = True
# lock thread-protected stuff
got_lock = self.thread_ready.acquire(False)
if self._kill:
print >>Term.cout, 'Closing threads...',
Term.cout.flush()
for tokill in self.on_kill:
tokill()
print >>Term.cout, 'Done.'
# Install sigint handler. We do it every time to ensure that if user
# code modifies it, we restore our own handling.
try:
signal(SIGINT,sigint_handler)
except SystemError:
# This happens under Windows, which seems to have all sorts
# of problems with signal handling. Oh well...
pass
# Flush queue of pending code by calling the run methood of the parent
# class with all items which may be in the queue.
while 1:
try:
code_to_run = self.code_queue.get_nowait()
except Queue.Empty:
break
if got_lock:
self.thread_ready.notify()
InteractiveShell.runcode(self,code_to_run)
else:
break
# We're done with thread-protected variables
if got_lock:
self.thread_ready.release()
# We're done...
CODE_RUN = False
# This MUST return true for gtk threading to work
return True
def __init__(self,
name,
usage=None,
rc=Struct(opts=None, args=None),
user_ns=None,
**kw):
user_ns, b2 = self._matplotlib_config(name)
InteractiveShell.__init__(self,
name,
usage,
rc,
user_ns,
banner2=b2,
**kw)
def prefilter_PQ(self,line,continuation):
"""Alternate prefilter for input of PhysicalQuantityInteractive objects.
This assumes that the function PhysicalQuantityInteractive() has been
imported."""
from re import match
from IPython.iplib import InteractiveShell
# This regexp is what does the real work
unit_split = match(r'\s*(\w+)\s*=\s*(-?\d*\.?\d*[eE]?-?\d*)\s+([a-zA-Z].*)',
line)
# If special input was ecnountered, process it:
if unit_split:
var,val,units = unit_split.groups()
if var and val and units:
units = units.replace('^','**')
# Now a valid line needs to be constructed for IPython to process:
line = var +" = PhysicalQuantityInteractive(" + val + ", '" + \
units + "')"
#print 'New line:',line # dbg
# In the end, always call the default IPython _prefilter() function. Note
# that self must be passed explicitly, b/c we're calling the unbound class
# method (since this method will overwrite the instance prefilter())
return InteractiveShell._prefilter(self,line,continuation)
def prefilter_PQ(self, line, continuation):
"""Alternate prefilter for input of PhysicalQuantityInteractive objects.
This assumes that the function PhysicalQuantityInteractive() has been
imported."""
from re import match
from IPython.iplib import InteractiveShell
# This regexp is what does the real work
unit_split = match(
r'\s*(\w+)\s*=\s*(-?\d*\.?\d*[eE]?-?\d*)\s+([a-zA-Z].*)', line)
# If special input was ecnountered, process it:
if unit_split:
var, val, units = unit_split.groups()
if var and val and units:
units = units.replace('^', '**')
# Now a valid line needs to be constructed for IPython to process:
line = var +" = PhysicalQuantityInteractive(" + val + ", '" + \
units + "')"
#print 'New line:',line # dbg
# In the end, always call the default IPython _prefilter() function. Note
# that self must be passed explicitly, b/c we're calling the unbound class
# method (since this method will overwrite the instance prefilter())
return InteractiveShell._prefilter(self, line, continuation)
def prefilter_paste(self, line, continuation):
"""Alternate prefilter for input of pasted code from an interpreter.
"""
from re import match
from IPython.iplib import InteractiveShell
if match(r'^>>> |^\.\.\. ', line):
# In the end, always call the default IPython _prefilter() function.
# Note that self must be passed explicitly, b/c we're calling the
# unbound class method (since this method will overwrite the instance
# prefilter())
return InteractiveShell._prefilter(self, line[4:], continuation)
elif line.strip() == '...':
return InteractiveShell._prefilter(self, '', continuation)
else:
return InteractiveShell._prefilter(self, line, continuation)
def runcode(self):
"""Execute a code object.
Multithreaded wrapper around IPython's runcode()."""
# lock thread-protected stuff
got_lock = self.thread_ready.acquire(False)
# Install sigint handler
try:
signal.signal(signal.SIGINT, sigint_handler)
except SystemError:
# This happens under Windows, which seems to have all sorts
# of problems with signal handling. Oh well...
pass
if self._kill:
print >> Term.cout, 'Closing threads...',
Term.cout.flush()
for tokill in self.on_kill:
tokill()
print >> Term.cout, 'Done.'
# Flush queue of pending code by calling the run methood of the parent
# class with all items which may be in the queue.
while 1:
try:
code_to_run = self.code_queue.get_nowait()
except Queue.Empty:
break
if got_lock:
self.thread_ready.notify()
InteractiveShell.runcode(self, code_to_run)
else:
break
# We're done with thread-protected variables
if got_lock:
self.thread_ready.release()
# This MUST return true for gtk threading to work
return True
def __init__(self,name,usage=None,rc=Struct(opts=None,args=None),
user_ns=None,user_global_ns=None,banner2='',**kw):
"""Similar to the normal InteractiveShell, but with threading control"""
InteractiveShell.__init__(self,name,usage,rc,user_ns,
user_global_ns,banner2)
# A queue to hold the code to be executed.
self.code_queue = Queue.Queue()
# Stuff to do at closing time
self._kill = None
on_kill = kw.get('on_kill', [])
# Check that all things to kill are callable:
for t in on_kill:
if not callable(t):
raise TypeError,'on_kill must be a list of callables'
self.on_kill = on_kill
# thread identity of the "worker thread" (that may execute code directly)
self.worker_ident = None
def __init__(self,name,usage=None,rc=Struct(opts=None,args=None),
user_ns=None,user_global_ns=None,banner2='',**kw):
"""Similar to the normal InteractiveShell, but with threading control"""
InteractiveShell.__init__(self,name,usage,rc,user_ns,
user_global_ns,banner2)
# Locking control variable.
self.thread_ready = threading.Condition(threading.RLock())
# A queue to hold the code to be executed. A scalar variable is NOT
# enough, because uses like macros cause reentrancy.
self.code_queue = Queue.Queue()
# Stuff to do at closing time
self._kill = False
on_kill = kw.get('on_kill')
if on_kill is None:
on_kill = []
# Check that all things to kill are callable:
for t in on_kill:
if not callable(t):
raise TypeError,'on_kill must be a list of callables'
self.on_kill = on_kill
def sage_prefilter(self, block, continuation):
"""
Sage's prefilter for input. Given a string block (usually a
line), return the preparsed version of it.
INPUT:
- block -- string (usually a single line, but not always)
- continuation -- whether or not this line is a continuation.
"""
try:
block2 = ''
first = True
B = block.split('\n')
for i in range(len(B)):
L = B[i]
M = do_prefilter_paste(L, continuation or (not first))
first = False
# The L[:len(L)-len(L.lstrip())] business here preserves
# the whitespace at the beginning of L.
if block2 != '':
block2 += '\n'
lstrip = L.lstrip()
if lstrip[:5] == 'sage:' or lstrip[:3] == '>>>' or i==0:
block2 += M
else:
block2 += L[:len(L)-len(lstrip)] + M
except None:
print "WARNING: An error occurred in the Sage parser while"
print "parsing the following block:"
print block
print "Please report this as a bug (include the output of typing '%hist')."
block2 = block
return InteractiveShell._prefilter(self, block2, continuation)
def sage_prefilter(self, block, continuation):
"""
Sage's prefilter for input. Given a string block (usually a
line), return the preparsed version of it.
INPUT:
- block -- string (usually a single line, but not always)
- continuation -- whether or not this line is a continuation.
"""
try:
block2 = ''
first = True
B = block.split('\n')
for i in range(len(B)):
L = B[i]
M = do_prefilter_paste(L, continuation or (not first))
first = False
# The L[:len(L)-len(L.lstrip())] business here preserves
# the whitespace at the beginning of L.
if block2 != '':
block2 += '\n'
lstrip = L.lstrip()
if lstrip[:5] == 'sage:' or lstrip[:3] == '>>>' or i == 0:
block2 += M
else:
block2 += L[:len(L) - len(lstrip)] + M
except None:
print "WARNING: An error occurred in the Sage parser while"
print "parsing the following block:"
print block
print "Please report this as a bug (include the output of typing '%hist')."
block2 = block
return InteractiveShell._prefilter(self, block2, continuation)
def __init__(self, name, **kw):
self.parentclass = InteractiveShell
AUTOInteractive.__init__(self, kw["user_ns"], None)
InteractiveShell.__init__(self, name, **kw)
def handle_normal(self, line):
if line.line.startswith('$'):
self.callback.process_message(line.line[1:])
self.callback.check_response_queue()
return ''
return InteractiveShell.handle_normal(self, line)
def handle_normal(self, line):
if line.line.startswith('$'):
self.callback.process_message(line.line[1:])
self.callback.check_response_queue()
return ''
return InteractiveShell.handle_normal(self, line)
def runcode(self):
"""Execute a code object.
Multithreaded wrapper around IPython's runcode()."""
global CODE_RUN
# we are in worker thread, stash out the id for runsource()
self.worker_ident = thread.get_ident()
if self._kill:
print >>Term.cout, 'Closing threads...',
Term.cout.flush()
for tokill in self.on_kill:
tokill()
print >>Term.cout, 'Done.'
# allow kill() to return
self._kill.set()
return True
# Install sigint handler. We do it every time to ensure that if user
# code modifies it, we restore our own handling.
try:
signal(SIGINT,sigint_handler)
except SystemError:
# This happens under Windows, which seems to have all sorts
# of problems with signal handling. Oh well...
pass
# Flush queue of pending code by calling the run methood of the parent
# class with all items which may be in the queue.
code_to_run = None
while 1:
try:
code_to_run, completed_ev, received_ev = self.code_queue.get_nowait()
except Queue.Empty:
break
received_ev.set()
# Exceptions need to be raised differently depending on which
# thread is active. This convoluted try/except is only there to
# protect against asynchronous exceptions, to ensure that a KBINT
# at the wrong time doesn't deadlock everything. The global
# CODE_TO_RUN is set to true/false as close as possible to the
# runcode() call, so that the KBINT handler is correctly informed.
try:
try:
CODE_RUN = True
InteractiveShell.runcode(self,code_to_run)
except KeyboardInterrupt:
print "Keyboard interrupted in mainloop"
while not self.code_queue.empty():
code, ev1,ev2 = self.code_queue.get_nowait()
ev1.set()
ev2.set()
break
finally:
CODE_RUN = False
# allow runsource() return from wait
completed_ev.set()
# This MUST return true for gtk threading to work
return True
def __init__(self,name,usage=None,rc=Struct(opts=None,args=None),
user_ns=None,user_global_ns=None,**kw):
user_ns,user_global_ns,b2 = self._matplotlib_config(name,user_ns,user_global_ns)
InteractiveShell.__init__(self,name,usage,rc,user_ns,user_global_ns,
banner2=b2,**kw)
def runcode(self):
"""Execute a code object.
Multithreaded wrapper around IPython's runcode()."""
global CODE_RUN
# lock thread-protected stuff
got_lock = self.thread_ready.acquire()
if self._kill:
print >>Term.cout, 'Closing threads...',
Term.cout.flush()
for tokill in self.on_kill:
tokill()
print >>Term.cout, 'Done.'
# Install sigint handler. We do it every time to ensure that if user
# code modifies it, we restore our own handling.
try:
signal(SIGINT,sigint_handler)
except SystemError:
# This happens under Windows, which seems to have all sorts
# of problems with signal handling. Oh well...
pass
# Flush queue of pending code by calling the run methood of the parent
# class with all items which may be in the queue.
code_to_run = None
while 1:
try:
code_to_run = self.code_queue.get_nowait()
except Queue.Empty:
break
# Exceptions need to be raised differently depending on which
# thread is active. This convoluted try/except is only there to
# protect against asynchronous exceptions, to ensure that a KBINT
# at the wrong time doesn't deadlock everything. The global
# CODE_TO_RUN is set to true/false as close as possible to the
# runcode() call, so that the KBINT handler is correctly informed.
try:
try:
CODE_RUN = True
InteractiveShell.runcode(self,code_to_run)
except KeyboardInterrupt:
print "Keyboard interrupted in mainloop"
while not self.code_queue.empty():
self.code_queue.get_nowait()
break
finally:
if got_lock:
CODE_RUN = False
# We're done with thread-protected variables
if code_to_run is not None:
self.thread_ready.notify()
self.thread_ready.release()
# We're done...
CODE_RUN = False
# This MUST return true for gtk threading to work
return True
def prefilter(self, line, continue_prompt):
if not continue_prompt:
line = self.processShorthand(line)
line = InteractiveShell.prefilter(self, line, continue_prompt)
return line
def runcode(self):
"""Execute a code object.
Multithreaded wrapper around IPython's runcode()."""
global CODE_RUN
# lock thread-protected stuff
got_lock = self.thread_ready.acquire()
if self._kill:
print >> Term.cout, 'Closing threads...',
Term.cout.flush()
for tokill in self.on_kill:
tokill()
print >> Term.cout, 'Done.'
# Install sigint handler. We do it every time to ensure that if user
# code modifies it, we restore our own handling.
try:
signal(SIGINT, sigint_handler)
except SystemError:
# This happens under Windows, which seems to have all sorts
# of problems with signal handling. Oh well...
pass
# Flush queue of pending code by calling the run methood of the parent
# class with all items which may be in the queue.
code_to_run = None
while 1:
try:
code_to_run = self.code_queue.get_nowait()
except Queue.Empty:
break
# Exceptions need to be raised differently depending on which
# thread is active. This convoluted try/except is only there to
# protect against asynchronous exceptions, to ensure that a KBINT
# at the wrong time doesn't deadlock everything. The global
# CODE_TO_RUN is set to true/false as close as possible to the
# runcode() call, so that the KBINT handler is correctly informed.
try:
try:
CODE_RUN = True
InteractiveShell.runcode(self, code_to_run)
except KeyboardInterrupt:
print "Keyboard interrupted in mainloop"
while not self.code_queue.empty():
self.code_queue.get_nowait()
break
finally:
if got_lock:
CODE_RUN = False
# We're done with thread-protected variables
if code_to_run is not None:
self.thread_ready.notify()
self.thread_ready.release()
# We're done...
CODE_RUN = False
# This MUST return true for gtk threading to work
return True
