类型错误:initial_value 必须是 unicode 或 None，而不是 str，

问题描述

我将 SOAPpy 用于soap wsdl 服务.我正在关注这个 toturail.我的代码如下

I am using SOAPpy for soap wsdl services. I am following this toturail. My code is as follow

from SOAPpy import WSDL
wsdlfile = 'http://track.tcs.com.pk/trackingaccount/track.asmx?WSDL'
server = WSDL.Proxy(wsdlfile)

我在代码的最后一行收到此错误

I am getting this error on the last line of my code

Traceback (most recent call last):
File "<console>", line 1, in <module>
File "/home/adil/Code/mezino/RoyalTag/royalenv/local/lib/python2.7/site-packages/SOAPpy/WSDL.py", line 85, in __init__
self.wsdl = reader.loadFromString(str(wsdlsource))
File "/home/adil/Code/mezino/RoyalTag/royalenv/local/lib/python2.7/site-packages/wstools/WSDLTools.py", line 52, in loadFromString
return self.loadFromStream(StringIO(data))
TypeError: initial_value must be unicode or None, not str

我尝试使用

wsdlFile = unicode('http://track.tcs.com.pk/trackingaccount/track.asmx?WSDL, "utf-8")

但仍然有同样的错误.这里缺少什么?

but still having same error. What is missing here ?

推荐答案

我刚刚遇到了这个问题，因为一些非常旧的 2.7 代码由于 TLS 更新而不再有效.更新到最新版本的 Python 2 后，我最终遇到了这个问题.

I just ran into this problem with some very old 2.7 code that no longer worked due to the TLS update. After updating to the most recent version of Python 2 I ended up getting this issue.

我只能通过设置一个新的虚拟环境来解决这个问题，然后修改该虚拟环境中的 wstools 包以使用 BytesIO 而不是 StringIO.

I was only able to fix this by setting up a new virtual environment, then modifying the wstools package in that virtual environment to use BytesIO instead of StringIO.

替换所有必需的 StringIO 实例.例如:

Replace every required instance of StringIO. For example:

# WSDLTools.py
...
from IO import BytesIO
...
return self.loadFromStream(BytesIO(data))

不理想，但有效.比将所有内容迁移到 Python 3 更容易...

Not ideal, but it worked. Easier than migrating everything to Python 3...

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