Python：Python中Flask出现No module named 'markupsafe._compat'问题的解决方案

在Python的目录中，进入“\Lib\site-packages\markupsafe”文件夹，新建_compat.py文件，内容如下：

# -*- coding: utf-8 -*-
"""
    markupsafe._compat
    ~~~~~~~~~~~~~~~~~~
    Compatibility module for different Python versions.
    :copyright: (c) 2013 by Armin Ronacher.
    :license: BSD, see LICENSE for more details.
"""
import sys
PY2 = sys.version_info[0] == 2
if not PY2:
    text_type = str
    string_types = (str,)
    unichr = chr
    int_types = (int,)
    iteritems = lambda x: iter(x.items())
else:
    text_type = unicode
    string_types = (str, unicode)
    unichr = unichr
    int_types = (int, long)
    iteritems = lambda x: x.iteritems()