Python UnicodeDecodeError:&x27；utf-8'；编解码器可以'；t解码位置125处的字节0xc3：无效的连续字节

我正在读取一个包含50000行和值的文件：

2.711569 2.295490 4.141002

并且numpy.loadtxt能够很好地读取它们并进行一些计算。一旦我调用我的函数：

c = setupc(2,n) # setups of cov matrix

n=499999

它把我引向调度员：

def _compile_for_args(self, *args, **kws):
    """
    For internal use.  Compile a specialized version of the function
    for the given *args* and *kws*, and return the resulting callable.
    """
    assert not kws

def error_rewrite(e, issue_type):
    """
    Rewrite and raise Exception `e` with help supplied based on the
    specified issue_type.
    """
    if config.SHOW_HELP:
        help_msg = errors.error_extras[issue_type]
        e.patch_message('\n'.join((str(e).rstrip(), help_msg)))
    if config.FULL_TRACEBACKS:
        raise e
    else:
        reraise(type(e), e, None)

argtypes = []
for a in args:
    if isinstance(a, OmittedArg):
        argtypes.append(types.Omitted(a.value))
    else:
        argtypes.append(self.typeof_pyval(a))
try:
    return self.compile(tuple(argtypes))

并给出了错误：

在处理上述异常期间，发生了另一个异常：

Traceback (most recent call last):
  File "C:\Anaconda3\lib\runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "C:\Anaconda3\lib\runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "C:\Anaconda3\lib\site-packages\spyder_kernels\console\__main__.py", line 11, in <module>
    start.main()
  File "C:\Anaconda3\lib\site-packages\spyder_kernels\console\start.py", line 318, in main
    kernel.start()
  File "C:\Anaconda3\lib\site-packages\ipykernel\kernelapp.py", line 583, in start
    self.io_loop.start()
  File "C:\Anaconda3\lib\site-packages\tornado\platform\asyncio.py", line 153, in start
    self.asyncio_loop.run_forever()
  File "C:\Anaconda3\lib\asyncio\base_events.py", line 538, in run_forever
    self._run_once()
  File "C:\Anaconda3\lib\asyncio\base_events.py", line 1782, in _run_once
    handle._run()
  File "C:\Anaconda3\lib\asyncio\events.py", line 100, in _run
    self._loop.call_exception_handler(context)
  File "C:\Anaconda3\lib\asyncio\base_events.py", line 1647, in call_exception_handler
    exc_info=True)
  File "C:\Anaconda3\lib\logging\__init__.py", line 1407, in error
    self._log(ERROR, msg, args, **kwargs)
  File "C:\Anaconda3\lib\logging\__init__.py", line 1514, in _log
    self.handle(record)
  File "C:\Anaconda3\lib\logging\__init__.py", line 1524, in handle
    self.callHandlers(record)
  File "C:\Anaconda3\lib\logging\__init__.py", line 1594, in callHandlers
    lastResort.handle(record)
  File "C:\Anaconda3\lib\logging\__init__.py", line 894, in handle
    self.emit(record)
  File "C:\Anaconda3\lib\logging\__init__.py", line 1033, in emit
    self.handleError(record)
  File "C:\Anaconda3\lib\logging\__init__.py", line 947, in handleError
    traceback.print_exception(t, v, tb, None, sys.stderr)
  File "C:\Anaconda3\lib\traceback.py", line 104, in print_exception
    type(value), value, tb, limit=limit).format(chain=chain):
  File "C:\Anaconda3\lib\traceback.py", line 521, in __init__
    self._load_lines()
  File "C:\Anaconda3\lib\traceback.py", line 533, in _load_lines
    self.__context__._load_lines()
  File "C:\Anaconda3\lib\traceback.py", line 533, in _load_lines
    self.__context__._load_lines()
  File "C:\Anaconda3\lib\traceback.py", line 533, in _load_lines
    self.__context__._load_lines()
  [Previous line repeated 14 more times]
  File "C:\Anaconda3\lib\traceback.py", line 531, in _load_lines
    frame.line
  File "C:\Anaconda3\lib\traceback.py", line 285, in line
    self._line = linecache.getline(self.filename, self.lineno).strip()
  File "C:\Anaconda3\lib\linecache.py", line 16, in getline
    lines = getlines(filename, module_globals)
  File "C:\Anaconda3\lib\linecache.py", line 47, in getlines
    return updatecache(filename, module_globals)
  File "C:\Anaconda3\lib\linecache.py", line 137, in updatecache
    lines = fp.readlines()
  File "C:\Anaconda3\lib\codecs.py", line 322, in decode
    (result, consumed) = self._buffer_decode(data, self.errors, final)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xc3 in position 125: invalid continuation byte

---

看起来它正在尝试打印异常的回溯，但无法读取源代码，因为源文件不是有效的utf-8。尝试使用调试器运行它，并在

updatecache（filename，module\u globals）

中捕获

filename

。顺便说一句，调试器还可能帮助您找到导致此错误的原始错误。我进行了调试，它在调用函数“setupc”时导致了该错误。什么是

setupc

？只是一个不做任何其他计算的函数Well，这就是有错误的函数，对吗？您发布了所有其他功能，但没有发布该功能：/

def setupc(m,n):
    c = np.zeros((m,m))

    for i in range(1,m+1):
        for j in range(1,m+1):

            # Heaviside
            if (i + j - n - 2 >= 0):
                heav = 1.0
            else:
                heav = 0.0

            c[i-1,j-1] = (
                2.*min(i,j) * (1.+3.*i*j - min(i,j)**2) / (n - min(i,j) +1) 
                + (min(i,j)**2 - min(i,j)**4) / ((n-i+1.)*(n-j+1.))
                + heav * ((n+1.-i-j)**4 - (n+1.-i-j)**2) / ((n-i+1.)*(n-j+1.))
                )
    return c