Question

我试图让Python 2代码在Python 3上运行，而这一行

    argv = (c_char_p * len(args))(*args)

导致此错误

File "/Users/hanxue/Code/Python/gsfs/src/gsfs.py", line 381, in main
  fuse = FUSE(GoogleStorageFUSE(username, password, logfile=logfile), mount_point, **fuse_args)
File "/Users/hanxue/Code/Python/gsfs/src/fuse.py", line 205, in __init__
  argv = (c_char_p * len(args))(*args)
TypeError: bytes or integer address expected instead of str instance

这是完整的方法

class FUSE(object):
    """This class is the lower level interface and should not be subclassed
       under normal use. Its methods are called by fuse"""

    def __init__(self, operations, mountpoint, raw_fi=False, **kwargs):
        """Setting raw_fi to True will cause FUSE to pass the fuse_file_info
               class as is to Operations, instead of just the fh field.
               This gives you access to direct_io, keep_cache, etc."""

        self.operations = operations
        self.raw_fi = raw_fi
        args = ['fuse']
        if kwargs.pop('foreground', False):
            args.append('-f')
        if kwargs.pop('debug', False):
            args.append('-d')
        if kwargs.pop('nothreads', False):
            args.append('-s')
        kwargs.setdefault('fsname', operations.__class__.__name__)
        args.append('-o')
        args.append(','.join(key if val == True else '%s=%s' % (key, val)
                             for key, val in kwargs.items()))
        args.append(mountpoint)

        argv = (c_char_p * len(args))(*args)

此行调用

fuse = FUSE(GoogleStorageFUSE(username, password, logfile=logfile), mount_point, **fuse_args)

如何通过将参数更改为byte[]？

来避免错误

Answer 1

在Python 3中，默认情况下，所有字符串文字都是unicode。因此，短语'fuse'，'-f'，'-d'等都会创建str个实例。为了获得bytes个实例，您需要同时执行这两个操作：

将字节传递到FUSE（username，password，logfile，mount_point以及fuse_args
将FUSE本身的所有字符串文字更改为字节：b'fuse'，b'-f'，b'-d'等。

这不是一项小工作。

Python 3 TypeError：期望的字节或整数地址而不是str实例

1 个答案: