1

私はPythonの初心者です。

私は現在プロジェクトに取り組んでいます。

ボタンAをクリックすると、コマンド「adbshel​​lgetevent」が1つのサブプロセスで実行されます。結果はファイルに書き込まれます。接続されているデバイスを誰かがタップすると、結果が生じることがあります。

ボタンBをクリックすると停止します。

class MyClass():
...
    def recordCmd(self):
        cmd = []
        cmd.append("adb")
        cmd.append("shell")
        cmd.append("getevent")
        cmd.append("/dev/input/event0")
        p = subprocess.Popen(cmd, stdin=PIPE, stdout=PIPE)
        for line in p.stdout:
            print line

    def OnRecordEvent(self, event):
    '''
     call "adb shell getevent /dev/input/event0 " to collect events
     '''
    mp = multiprocessing.Process(target=self.recordCmd, args=(self,))
    mp.daemon= True
    mp.start()
....

これは機能しません。次のエラーがスローされます。

File "C:\Python27\lib\multiprocessing\forking.py", line 271, in __init__
dump(process_obj, to_child, HIGHEST_PROTOCOL)
File "C:\Python27\lib\multiprocessing\forking.py", line 193, 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 419, 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 649, in save_dict
self._batch_setitems(obj.iteritems())
File "C:\Python27\lib\pickle.py", line 681, 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\multiprocessing\forking.py", line 66, in dispatcher
self.save_reduce(obj=obj, *rv)
File "C:\Python27\lib\pickle.py", line 401, in save_reduce
save(args)
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 548, 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 419, 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 649, in save_dict
self._batch_setitems(obj.iteritems())
File "C:\Python27\lib\pickle.py", line 681, 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 419, 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 649, in save_dict
self._batch_setitems(obj.iteritems())
File "C:\Python27\lib\pickle.py", line 686, 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 748, in save_global
(obj, module, name))
pickle.PicklingError: Can't pickle <type 'PySwigObject'>: it's not found as __builtin__.PySwigObject

誰かがこれについて私を助けることができますか？

4

1 に答える 1

0

multiprocessingpickleプロセス間でオブジェクトをコピーするときに使用します。エラー メッセージは、MyClassピクルスにできないものが含まれていることを示しているようです。

とにかくrecordCmd参照していないので、クラスから関数を取り出すことができます。self

于 2012-05-28T06:30:41.643 に答える