old_contents: #!/usr/bin/env python
  # -*- coding:utf-8 -*-
  
  __title__ = 'shell'
  __version__ = '0.3.0'
  __author__ = 'Qingping Hou'
  __license__ = 'MIT'
  
  from .run_cmd import RunCmd
  from .input_stream import InputStream
  from .api import env, instream, ex, ex_all, asex, pipe_all, p
  from . import parallel_api as parallel
  
new_contents: #!/usr/bin/env python
  # -*- coding:utf-8 -*-
  
  __title__ = 'shell'
  __version__ = '0.4.0'
  __author__ = 'Qingping Hou'
  __license__ = 'MIT'
  
  from .run_cmd import RunCmd
  from .input_stream import InputStream
  from .api import env, instream, ex, ex_all, asex, pipe_all, p
  from . import parallel_api as parallel
  
subject: bump version to 0.4.0