Numba和KeyboardInterrupt异常冲突

时间:2015-10-13 16:37:55

标签: python exception python-3.4 jit numba

使用Continuum Numba模块编译<​​strong> KeyboardInterrupt 异常时遇到问题。这是我的数据采集代码:

@jit
def lockinmeasurement(x):
    Measurement=np.empty((0,5))
    XMeas=np.empty((0,2))
    event_handler = LoggingEventHandler()
    observer = Observer()
    observer.schedule(event_handler, path_to_watch, recursive=True)
    observer.start()
    try:
       while x:
           SQData=pd.read_csv(path_to_watch,sep=',',skiprows=14)
           Temp=SQData['Temperature (K)']
           Field=SQData['Field (Oe)']
           XMeas=np.append(XMeas,[[time.clock(),lockin.x]],axis=0)
           Measurement=np.append(Measurement,[[a,b,c,d,e]])
           p1.plot(XMeas,clear=True,label='Lockin X',pen='y')
           pg.QtGui.QApplication.processEvents()    
           rd=pd.DataFrame(Measurement)
           rd.to_csv('fileout.csv',sep='\t',index=False)
           time.sleep(0.2)
    except KeyboardInterrupt:
       print('interrupted!')

lockinmeasurement(True)

在没有“ @jit ”的情况下,代码编译完全正常,但是当我尝试使用numba时,它会返回错误:

Traceback (most recent call last):
  File "C:\Anaconda3\lib\site-packages\numba\bytecode.py", line 231, in next
    info = BYTECODE_TABLE[opcode]
KeyError: 121

During handling of the above exception, another exception occurred:

lockinmeasurement(True)

  File "C:\Anaconda3\lib\site-packages\numba\dispatcher.py", line 165, in _compile_for_args
    return self.compile(sig)

  File "C:\Anaconda3\lib\site-packages\numba\dispatcher.py", line 303, in compile
    flags=flags, locals=self.locals)

  File "C:\Anaconda3\lib\site-packages\numba\compiler.py", line 595, in compile_extra
    return pipeline.compile_extra(func)

  File "C:\Anaconda3\lib\site-packages\numba\compiler.py", line 316, in compile_extra
    raise e

  File "C:\Anaconda3\lib\site-packages\numba\compiler.py", line 311, in compile_extra

    bc = self.extract_bytecode(func)
  File "C:\Anaconda3\lib\site-packages\numba\compiler.py", line 303, in extract_bytecode

    bc = bytecode.ByteCode(func=self.func)

  File "C:\Anaconda3\lib\site-packages\numba\bytecode.py", line 333, in __init__
    table = utils.SortedMap(ByteCodeIter(code))

  File "C:\Anaconda3\lib\site-packages\numba\utils.py", line 109, in __init__
    for i, (k, v) in enumerate(sorted(seq)):

  File "C:\Anaconda3\lib\site-packages\numba\bytecode.py", line 235, in next
    raise NotImplementedError(ts % tv)

NotImplementedError: offset=80 opcode=0x79 opname=SETUP_EXCEPT

有什么办法可以解决这个问题吗?

1 个答案:

答案 0 :(得分:1)

感谢Travis的创新团队的努力hero.equip(apple) # no error hero.weapon.calculateDamage() # AttributeError: Apple object has no attribute `damage` 是一个伟大而强大的科学计算工具。然而,在可行的情况下,人们应该小心使用它,numba - 汇编可以为我们艰难而快速的生活带来一些成果。

Numba Documentation明确说明了这一点,并说:

  

<强> 2.4.1.1。构建体

  Numba努力支持尽可能多的Python语言, Numba编译函数中的一些语言特性不可用

- 功能定义

-   分类定义

-   异常处理 jit

-   上下文管理((try .. except, try .. finally)语句)

-   理解(withlistdict或生成器理解)

-   发电机代表团(set)来自)

   yield 声明 声明支持多种形式:

  raise(重新提高当前例外)
  raise
  raise SomeException:在raise SomeException(<arguments>)模式下,构造函数参数必须是编译时常量


  同样,支持 nopython 语句,无论是否有错误消息。