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from pydev_imports import xmlrpclib
import sys
import traceback
from pydevd_constants import USE_LIB_COPY
try:
if USE_LIB_COPY:
import _pydev_Queue as _queue
else:
import Queue as _queue
except:
import queue as _queue
try:
from pydevd_exec import Exec
except:
from pydevd_exec2 import Exec
try:
if USE_LIB_COPY:
import _pydev_thread as thread
else:
import thread
except:
import _thread as thread
import pydevd_xml
import pydevd_vars
from pydevd_utils import *
#=======================================================================================================================
# Null
#=======================================================================================================================
class Null:
"""
Gotten from: http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/68205
"""
def __init__(self, *args, **kwargs):
return None
def __call__(self, *args, **kwargs):
return self
def __getattr__(self, mname):
return self
def __setattr__(self, name, value):
return self
def __delattr__(self, name):
return self
def __repr__(self):
return "<Null>"
def __str__(self):
return "Null"
def __len__(self):
return 0
def __getitem__(self):
return self
def __setitem__(self, *args, **kwargs):
pass
def write(self, *args, **kwargs):
pass
def __nonzero__(self):
return 0
#=======================================================================================================================
# BaseStdIn
#=======================================================================================================================
class BaseStdIn:
def __init__(self, *args, **kwargs):
try:
self.encoding = sys.stdin.encoding
except:
#Not sure if it's available in all Python versions...
pass
def readline(self, *args, **kwargs):
#sys.stderr.write('Cannot readline out of the console evaluation\n') -- don't show anything
#This could happen if the user had done input('enter number).<-- upon entering this, that message would appear,
#which is not something we want.
return '\n'
def isatty(self):
return False #not really a file
def write(self, *args, **kwargs):
pass #not available StdIn (but it can be expected to be in the stream interface)
def flush(self, *args, **kwargs):
pass #not available StdIn (but it can be expected to be in the stream interface)
def read(self, *args, **kwargs):
#in the interactive interpreter, a read and a readline are the same.
return self.readline()
#=======================================================================================================================
# StdIn
#=======================================================================================================================
class StdIn(BaseStdIn):
'''
Object to be added to stdin (to emulate it as non-blocking while the next line arrives)
'''
def __init__(self, interpreter, host, client_port):
BaseStdIn.__init__(self)
self.interpreter = interpreter
self.client_port = client_port
self.host = host
def readline(self, *args, **kwargs):
#Ok, callback into the client to get the new input
try:
server = xmlrpclib.Server('http://%s:%s' % (self.host, self.client_port))
requested_input = server.RequestInput()
if not requested_input:
return '\n' #Yes, a readline must return something (otherwise we can get an EOFError on the input() call).
return requested_input
except:
return '\n'
#=======================================================================================================================
# BaseInterpreterInterface
#=======================================================================================================================
class BaseInterpreterInterface:
def __init__(self, mainThread):
self.mainThread = mainThread
self.interruptable = False
self.exec_queue = _queue.Queue(0)
self.buffer = []
def needMore(self, buffer, line):
if not buffer:
buffer = []
buffer.append(line)
source = "\n".join(buffer)
if hasattr(self.interpreter, 'is_complete'):
return not self.interpreter.is_complete(source)
try:
code = self.interpreter.compile(source, "<input>", "single")
except (OverflowError, SyntaxError, ValueError):
# Case 1
return False
if code is None:
# Case 2
return True
# Case 3
return False
def addExec(self, line):
#f_opened = open('c:/temp/a.txt', 'a')
#f_opened.write(line+'\n')
original_in = sys.stdin
try:
help = None
if 'pydoc' in sys.modules:
pydoc = sys.modules['pydoc'] #Don't import it if it still is not there.
if hasattr(pydoc, 'help'):
#You never know how will the API be changed, so, let's code defensively here
help = pydoc.help
if not hasattr(help, 'input'):
help = None
except:
#Just ignore any error here
pass
more = False
try:
sys.stdin = StdIn(self, self.host, self.client_port)
try:
if help is not None:
#This will enable the help() function to work.
try:
try:
help.input = sys.stdin
except AttributeError:
help._input = sys.stdin
except:
help = None
if not self._input_error_printed:
self._input_error_printed = True
sys.stderr.write('\nError when trying to update pydoc.help.input\n')
sys.stderr.write('(help() may not work -- please report this as a bug in the pydev bugtracker).\n\n')
import traceback;
traceback.print_exc()
try:
self.startExec()
more = self.doAddExec(line)
self.finishExec()
finally:
if help is not None:
try:
try:
help.input = original_in
except AttributeError:
help._input = original_in
except:
pass
finally:
sys.stdin = original_in
except SystemExit:
raise
except:
import traceback;
traceback.print_exc()
#it's always false at this point
need_input = False
return more, need_input
def doAddExec(self, line):
'''
Subclasses should override.
@return: more (True if more input is needed to complete the statement and False if the statement is complete).
'''
raise NotImplementedError()
def getNamespace(self):
'''
Subclasses should override.
@return: dict with namespace.
'''
raise NotImplementedError()
def getDescription(self, text):
try:
obj = None
if '.' not in text:
try:
obj = self.getNamespace()[text]
except KeyError:
return ''
else:
try:
splitted = text.split('.')
obj = self.getNamespace()[splitted[0]]
for t in splitted[1:]:
obj = getattr(obj, t)
except:
return ''
if obj is not None:
try:
if sys.platform.startswith("java"):
#Jython
doc = obj.__doc__
if doc is not None:
return doc
import jyimportsTipper
is_method, infos = jyimportsTipper.ismethod(obj)
ret = ''
if is_method:
for info in infos:
ret += info.getAsDoc()
return ret
else:
#Python and Iron Python
import inspect #@UnresolvedImport
doc = inspect.getdoc(obj)
if doc is not None:
return doc
except:
pass
try:
#if no attempt succeeded, try to return repr()...
return repr(obj)
except:
try:
#otherwise the class
return str(obj.__class__)
except:
#if all fails, go to an empty string
return ''
except:
traceback.print_exc()
return ''
def execLine(self, line):
try:
#buffer = self.interpreter.buffer[:]
self.exec_queue.put(line)
return self.needMore(self.buffer, line)
except:
traceback.print_exc()
return False
def interrupt(self):
try:
if self.interruptable:
if hasattr(thread, 'interrupt_main'): #Jython doesn't have it
thread.interrupt_main()
else:
self.mainThread._thread.interrupt() #Jython
return True
except:
traceback.print_exc()
return False
def close(self):
sys.exit(0)
def startExec(self):
self.interruptable = True
def get_server(self):
if self.host is not None:
return xmlrpclib.Server('http://%s:%s' % (self.host, self.client_port))
else:
return None
def finishExec(self):
self.interruptable = False
server = self.get_server()
if server is not None:
return server.NotifyFinished()
else:
return True
def getFrame(self):
xml = "<xml>"
xml += pydevd_xml.frameVarsToXML(self.getNamespace())
xml += "</xml>"
return xml
def getVariable(self, attributes):
xml = "<xml>"
valDict = pydevd_vars.resolveVar(self.getNamespace(), attributes)
if valDict is None:
valDict = {}
keys = valDict.keys()
for k in keys:
xml += pydevd_vars.varToXML(valDict[k], to_string(k))
xml += "</xml>"
return xml
def changeVariable(self, attr, value):
Exec('%s=%s' % (attr, value), self.getNamespace(), self.getNamespace())
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