环境:windows7 + python3.6.0
在尝试使用python的flask时,按照flask的tutorial操作,装好flask、venv后,对tutorial中的hello.py进行运行时发现了markupsafe._compat包缺失的问题
如下:
1 G:\Work\pythonMain>venv\Scripts\activate 2
3 (venv) G:\Work\pythonMain>set FLASK_APP=hello.py 4
5 (venv) G:\Work\pythonMain>flask run 6 Traceback (most recent call last): 7 File "e:\python\lib\runpy.py", line 193, in _run_module_as_main 8 "__main__", mod_spec) 9 File "e:\python\lib\runpy.py", line 85, in _run_code 10 exec(code, run_globals) 11 File "E:\python\Scripts\flask.exe\__main__.py", line 5, in <module>
12 File "e:\python\lib\site-packages\flask\__init__.py", line 19, in <module>
13 from jinja2 import Markup, escape 14 File "e:\python\lib\site-packages\jinja2\__init__.py", line 33, in <module>
15 from jinja2.environment import Environment, Template 16 File "e:\python\lib\site-packages\jinja2\environment.py", line 15, in <module>
17
18 from jinja2 import nodes 19 File "e:\python\lib\site-packages\jinja2\nodes.py", line 19, in <module>
20 from jinja2.utils import Markup 21 File "e:\python\lib\site-packages\jinja2\utils.py", line 624, in <module>
22 from markupsafe import Markup, escape, soft_unicode 23 File "e:\python\lib\site-packages\markupsafe\__init__.py", line 14, in <module 24 >
25 from markupsafe._compat import text_type, string_types, int_types, \ 26 ModuleNotFoundError: No module named 'markupsafe._compat'
使用 pip freeze 查看已安装的包时,markupsafe 和 jinja2都是已安装的状态
我将这两个包反复卸载再安装也并没有得到解决
在网上没有找到解决方案的时候,看见有一些 _compat.py 的文件内容如下:
附上网址:
https://chromium.googlesource.com/infra/third_party/MarkupSafe/+/188802ce86879aafc3472619ce82ae1768210d83/markupsafe/_compat.py
https://www.apt-browse.org/browse/debian/jessie/main/amd64/python3-markupsafe/0.23-1+b1/file/usr/lib/python3/dist-packages/markupsafe/_compat.py
1 # -*- coding: utf-8 -*-
2 """
3 markupsafe._compat 4 ~~~~~~~~~~~~~~~~~~ 5 Compatibility module for different Python versions. 6 :copyright: (c) 2013 by Armin Ronacher. 7 :license: BSD, see LICENSE for more details. 8 """
9 import sys 10 PY2 = sys.version_info[0] == 2
11 if not PY2: 12 text_type = str 13 string_types = (str,) 14 unichr = chr 15 int_types = (int,) 16 iteritems = lambda x: iter(x.items()) 17 else: 18 text_type = unicode 19 string_types = (str, unicode) 20 unichr = unichr 21 int_types = (int, long) 22 iteritems = lambda x: x.iteritems()
对照之下,两个网址上的这个文件内容是一样的,我在python的文件中找到markupsafe文件夹,文件夹内并没有这个文件。
虽然我并不知道为什么没有装上,但本着尝试的心态就自己在该目录下新建了个python文件,并把这个内容复制了进去,于是成功解决了我的问题。
本地目录是python目录下的:Lib\site-packages\markupsafe\
1 (venv) G:\Work\pythonMain>flask run 2 * Serving Flask app "hello"
3 * Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)
所以嘛,正所谓:没有文件,新建文件也要上 |