Python 解决：module 'pexpect' has no attribute 'spawn'

python 在使用 pexpect 的时候，报了

module 'pexpect' has no attribute 'spawn'

并不是”pexpect”没有“spanwn”模块，点进去看 pexpect 的源代码：

import sys
PY3 = (sys.version_info[0] >= 3)

from .exceptions import ExceptionPexpect, EOF, TIMEOUT
from .utils import split_command_line, which, is_executable_file
from .expect import Expecter, searcher_re, searcher_string

if sys.platform != 'win32':
    # On Unix, these are available at the top level for backwards compatibility
    from .pty_spawn import spawn, spawnu
    from .run import run, runu

__version__ = '4.0.1'
__revision__ = ''
__all__ = ['ExceptionPexpect', 'EOF', 'TIMEOUT', 'spawn', 'spawnu', 'run', 'runu',
           'which', 'split_command_line', '__version__', '__revision__']

发现该函数不能在 windows 系统下运行，换 linux 系统即可。