Python &引用；ImportError:无法导入名称“；对于使用Sphinx 1.2b3的路径上的模块

我正在使用Sphinx为我正在处理的项目自动生成文档。文档构建得很好，直到我向其中一个模块添加了另一个类。现在，每当我尝试运行构建时，都不会导入新类

Sphinx错误日志中的错误：

# Sphinx version: 1.2b3
# Python version: 2.7.3
# Docutils version: 0.9 release
# Jinja2 version: 2.6
# Loaded extensions:
#   sphinxcontrib.httpdomain from C:\Python27\lib\site-packages\sphinxcontrib_httpdomain-1.2.1-py2.7.egg\sphinxcontrib\httpdomain.pyc
#   sphinxcontrib.autohttp.flask from C:\Python27\lib\site-packages\sphinxcontrib_httpdomain-1.2.1-py2.7.egg\sphinxcontrib\autohttp\flask.pyc
#   sphinx.ext.autodoc from C:\Python27\lib\site-packages\sphinx\ext\autodoc.pyc
#   sphinx.ext.viewcode from C:\Python27\lib\site-packages\sphinx\ext\viewcode.pyc
#   sphinx.ext.oldcmarkup from C:\Python27\lib\site-packages\sphinx\ext\oldcmarkup.pyc
Traceback (most recent call last):
  File "C:\Python27\lib\site-packages\sphinx\cmdline.py", line 246, in main
    app.build(force_all, filenames)
  File "C:\Python27\lib\site-packages\sphinx\application.py", line 212, in build
    self.builder.build_update()
  File "C:\Python27\lib\site-packages\sphinx\builders\__init__.py", line 214, in build_update
    'out of date' % len(to_build))
  File "C:\Python27\lib\site-packages\sphinx\builders\__init__.py", line 234, in build
    purple, length):
  File "C:\Python27\lib\site-packages\sphinx\builders\__init__.py", line 134, in status_iterator
    for item in iterable:
  File "C:\Python27\lib\site-packages\sphinx\environment.py", line 470, in update_generator
    self.read_doc(docname, app=app)
  File "C:\Python27\lib\site-packages\sphinx\environment.py", line 618, in read_doc
    pub.publish()
  File "C:\Python27\lib\site-packages\docutils-0.9-py2.7.egg\docutils\core.py", line 221, in publish
    self.settings)
  File "C:\Python27\lib\site-packages\docutils-0.9-py2.7.egg\docutils\readers\__init__.py", line 69, in read
    self.parse()
  File "C:\Python27\lib\site-packages\docutils-0.9-py2.7.egg\docutils\readers\__init__.py", line 75, in parse
    self.parser.parse(self.input, document)
  File "C:\Python27\lib\site-packages\docutils-0.9-py2.7.egg\docutils\parsers\rst\__init__.py", line 162, in parse
    self.statemachine.run(inputlines, document, inliner=self.inliner)
  File "C:\Python27\lib\site-packages\docutils-0.9-py2.7.egg\docutils\parsers\rst\states.py", line 174, in run
    input_source=document['source'])
  File "C:\Python27\lib\site-packages\docutils-0.9-py2.7.egg\docutils\statemachine.py", line 239, in run
    context, state, transitions)
  File "C:\Python27\lib\site-packages\docutils-0.9-py2.7.egg\docutils\statemachine.py", line 460, in check_line
    return method(match, context, next_state)
  File "C:\Python27\lib\site-packages\docutils-0.9-py2.7.egg\docutils\parsers\rst\states.py", line 2706, in underline
    self.section(title, source, style, lineno - 1, messages)
  File "C:\Python27\lib\site-packages\docutils-0.9-py2.7.egg\docutils\parsers\rst\states.py", line 331, in section
    self.new_subsection(title, lineno, messages)
  File "C:\Python27\lib\site-packages\docutils-0.9-py2.7.egg\docutils\parsers\rst\states.py", line 399, in new_subsection
    node=section_node, match_titles=True)
  File "C:\Python27\lib\site-packages\docutils-0.9-py2.7.egg\docutils\parsers\rst\states.py", line 286, in nested_parse
    node=node, match_titles=match_titles)
  File "C:\Python27\lib\site-packages\docutils-0.9-py2.7.egg\docutils\parsers\rst\states.py", line 199, in run
    results = StateMachineWS.run(self, input_lines, input_offset)
  File "C:\Python27\lib\site-packages\docutils-0.9-py2.7.egg\docutils\statemachine.py", line 239, in run
    context, state, transitions)
  File "C:\Python27\lib\site-packages\docutils-0.9-py2.7.egg\docutils\statemachine.py", line 460, in check_line
    return method(match, context, next_state)
  File "C:\Python27\lib\site-packages\docutils-0.9-py2.7.egg\docutils\parsers\rst\states.py", line 2706, in underline
    self.section(title, source, style, lineno - 1, messages)
  File "C:\Python27\lib\site-packages\docutils-0.9-py2.7.egg\docutils\parsers\rst\states.py", line 331, in section
    self.new_subsection(title, lineno, messages)
  File "C:\Python27\lib\site-packages\docutils-0.9-py2.7.egg\docutils\parsers\rst\states.py", line 399, in new_subsection
    node=section_node, match_titles=True)
  File "C:\Python27\lib\site-packages\docutils-0.9-py2.7.egg\docutils\parsers\rst\states.py", line 286, in nested_parse
    node=node, match_titles=match_titles)
  File "C:\Python27\lib\site-packages\docutils-0.9-py2.7.egg\docutils\parsers\rst\states.py", line 199, in run
    results = StateMachineWS.run(self, input_lines, input_offset)
  File "C:\Python27\lib\site-packages\docutils-0.9-py2.7.egg\docutils\statemachine.py", line 239, in run
    context, state, transitions)
  File "C:\Python27\lib\site-packages\docutils-0.9-py2.7.egg\docutils\statemachine.py", line 460, in check_line
    return method(match, context, next_state)
  File "C:\Python27\lib\site-packages\docutils-0.9-py2.7.egg\docutils\parsers\rst\states.py", line 2279, in explicit_markup
    nodelist, blank_finish = self.explicit_construct(match)
  File "C:\Python27\lib\site-packages\docutils-0.9-py2.7.egg\docutils\parsers\rst\states.py", line 2291, in explicit_construct
    return method(self, expmatch)
  File "C:\Python27\lib\site-packages\docutils-0.9-py2.7.egg\docutils\parsers\rst\states.py", line 2034, in directive
    directive_class, match, type_name, option_presets)
  File "C:\Python27\lib\site-packages\docutils-0.9-py2.7.egg\docutils\parsers\rst\states.py", line 2083, in run_directive
    result = directive_instance.run()
  File "C:\Python27\lib\site-packages\sphinxcontrib_httpdomain-1.2.1-py2.7.egg\sphinxcontrib\autohttp\flask.py", line 138, in run
    for line in self.make_rst():
  File "C:\Python27\lib\site-packages\sphinxcontrib_httpdomain-1.2.1-py2.7.egg\sphinxcontrib\autohttp\flask.py", line 97, in make_rst
    app = import_object(self.arguments[0])
  File "C:\Python27\lib\site-packages\sphinxcontrib_httpdomain-1.2.1-py2.7.egg\sphinxcontrib\autohttp\common.py", line 17, in import_object
    mod = __import__(module_name)
  File "E:\workspace_zach\API\api_serve.py", line 6, in <module>
    from BOBI import BOBI
  File "E:\workspace_zach\API\BOBI\__init__.py", line 13, in <module>
    from Lib.DBVersionTools import DBVersionNormalizer, DBVersionPolisher
ImportError: cannot import name DBVersionPolisher

Sphinx扩展和路径修改：

sys.path.append('E:\\workspace_zach\\API')  # Root directory for the project

extensions = [
    'sphinx.ext.autodoc',
    'sphinxcontrib.httpdomain',
    'sphinxcontrib.autohttp.flask',
    'sphinx.ext.autodoc',
    'sphinx.ext.viewcode',
]

---

该文件的早期版本（未导入修改）存在于我正在开发的计算机的另一个路径上，并已添加到pythonpath

sys.path.remove（'E:\\workspace\\API'）

足以删除其他路径并修复问题

sys.path.append('E:\\workspace_zach\\API')  # Root directory for the project

extensions = [
    'sphinx.ext.autodoc',
    'sphinxcontrib.httpdomain',
    'sphinxcontrib.autohttp.flask',
    'sphinx.ext.autodoc',
    'sphinx.ext.viewcode',
]