Python無法在Windows上使用Process.start（）啓動Process。 PySide信號

Question

方法的標題：

self.ui.pushButton.clicked.connect(lambda: self.for_every_client(self)) 

stacktarce - http://pastebin.com/R1ZKcdPy

或這裏：

與方法

@engine.async 
@guiLoop 
def for_every_client(self): 

連接PySide信號

Traceback (most recent call last): 
    File "app2.py", line 437, in <lambda> 
    self.ui.pushButton.clicked.connect(lambda: self.for_every_client(self)) 
    File "c:\Python27\lib\site-packages\async_gui\engine.py", line 79, in wrapper 
    gen = func(*args, **kwargs) 
    File "C:\visa\visa_production\libs\guiLoop.py", line 70, in __call__ 
    _loop_in_the_gui(gui_element, generator, self.start_in_gui) 
    File "C:\visa\visa_production\libs\guiLoop.py", line 44, in _loop_in_the_gui 
    wait_time = next(generator) 
    File "app2.py", line 530, in for_every_client 
    p.start() 
    File "c:\Python27\lib\multiprocessing\process.py", line 130, in start 
    self._popen = Popen(self) 
    File "c:\Python27\lib\multiprocessing\forking.py", line 277, in __init__ 
    dump(process_obj, to_child, HIGHEST_PROTOCOL) 
    File "c:\Python27\lib\multiprocessing\forking.py", line 199, in dump 
    ForkingPickler(file, protocol).dump(obj) 
    File "c:\Python27\lib\pickle.py", line 224, in dump 
    self.save(obj) 
    File "c:\Python27\lib\pickle.py", line 331, in save 
    self.save_reduce(obj=obj, *rv) 
    File "c:\Python27\lib\pickle.py", line 425, in save_reduce 
    save(state) 
    File "c:\Python27\lib\pickle.py", line 286, in save 
    f(self, obj) # Call unbound method with explicit self 
    File "c:\Python27\lib\pickle.py", line 655, in save_dict 
    self._batch_setitems(obj.iteritems()) 
    File "c:\Python27\lib\pickle.py", line 687, in _batch_setitems 
    save(v) 
    File "c:\Python27\lib\pickle.py", line 286, in save 
    f(self, obj) # Call unbound method with explicit self 
    File "c:\Python27\lib\pickle.py", line 554, in save_tuple 
    save(element) 
    File "c:\Python27\lib\pickle.py", line 331, in save 
    self.save_reduce(obj=obj, *rv) 
    File "c:\Python27\lib\pickle.py", line 425, in save_reduce 
    save(state) 
    File "c:\Python27\lib\pickle.py", line 286, in save 
    f(self, obj) # Call unbound method with explicit self 
    File "c:\Python27\lib\pickle.py", line 655, in save_dict 
    self._batch_setitems(obj.iteritems()) 
    File "c:\Python27\lib\pickle.py", line 687, in _batch_setitems 
    save(v) 
    File "c:\Python27\lib\pickle.py", line 331, in save 
    self.save_reduce(obj=obj, *rv) 
    File "c:\Python27\lib\pickle.py", line 425, in save_reduce 
    save(state) 
    File "c:\Python27\lib\pickle.py", line 286, in save 
    f(self, obj) # Call unbound method with explicit self 
    File "c:\Python27\lib\pickle.py", line 655, in save_dict 
    self._batch_setitems(obj.iteritems()) 
    File "c:\Python27\lib\pickle.py", line 687, in _batch_setitems 
    save(v) 
    File "c:\Python27\lib\pickle.py", line 331, in save 
    self.save_reduce(obj=obj, *rv) 
    File "c:\Python27\lib\pickle.py", line 396, in save_reduce 
    save(cls) 
    File "c:\Python27\lib\pickle.py", line 286, in save 
    f(self, obj) # Call unbound method with explicit self 
    File "c:\Python27\lib\pickle.py", line 754, in save_global 
    (obj, module, name)) 
pickle.PicklingError: Can't pickle <type 'PySide.QtCore.SignalInstance'>: it's n 
ot found as PySide.QtCore.SignalInstance 
Traceback (most recent call last): 
    File "<string>", line 1, in <module> 
    File "c:\Python27\lib\multiprocessing\forking.py", line 381, in main 
    self = load(from_parent) 
    File "c:\Python27\lib\pickle.py", line 1384, in load 
    return Unpickler(file).load() 
    File "c:\Python27\lib\pickle.py", line 864, in load 
    dispatch[key](self) 
    File "c:\Python27\lib\pickle.py", line 886, in load_eof 
    raise EOFError 
EOFError 

Answer 1

class Window 
    SignalProgressBar = QtCore.pyqtSignal() 
    def __init__(self): 
     self.SignalProgressBar.connect(lambda: self.for_every_client(self)) 

連接信號與方法：

w = Window() 
w.SignalProgressBar.emit()