概览
我的目标是开发一个在Raspberry Pi上运行的Python应用程序，它通过网络读取OwnCloud日历条目。日历本身是Owncloud的本地安装的一部分，Owncloud驻留在同一本地网络中的另一个Raspberry Pi上。在执行请求时，访问是通过HTTPS完成的，没有激活的SSL身份验证。
问题
我尝试使用 caldav Python包。在使用PIP和Python v2.7安装软件包之后，我得到了Exception: The CalDAV server you are using has a problem with path handling.
这是我在PYTHON IDLE v2.7中输入的内容：
import caldav
cal_user='user'
cal_pass='pass'
cal_url='https://192.168.1.46/remote.php/caldav/calendars/user/pers%C3%B6nlich'
cal_client=caldav.DAVClient(cal_url, username='user', password='pass', ssl_verify_cert=False)
cal_principal=cal_client.principal()
这是打印在控制台上的内容：
Warning (from warnings module):
File "C:\PROGS\Python27\lib\site-packages\requests\packages\urllib3\connectionpool.py", line 789
InsecureRequestWarning)
InsecureRequestWarning: Unverified HTTPS request is being made. Adding certificate verification is strongly advised. See: https://urllib3.readthedocs.org/en/latest/security.html
Warning (from warnings module):
File "C:\PROGS\Python27\lib\site-packages\requests\packages\urllib3\connectionpool.py", line 789
InsecureRequestWarning)
InsecureRequestWarning: Unverified HTTPS request is being made. Adding certificate verification is strongly advised. See: https://urllib3.readthedocs.org/en/latest/security.html
Traceback (most recent call last):
File "<pyshell#9>", line 1, in <module>
cal_principal=cal_client.principal()
File "C:\PROGS\Python27\lib\site-packages\caldav\davclient.py", line 113, in principal
return Principal(self)
File "C:\PROGS\Python27\lib\site-packages\caldav\objects.py", line 307, in __init__
cup = self.get_properties([dav.CurrentUserPrincipal()])
File "C:\PROGS\Python27\lib\site-packages\caldav\objects.py", line 182, in get_properties
raise Exception("The CalDAV server you are using has "
Exception: The CalDAV server you are using has a problem with path handling.
我尽可能地尝试使用网址来消除我身边的任何可能的输入错误，但我仍然不能100％确定我设法做到了。
在我的案例中，有人对最终的异常消息有实际的解释吗？我在哪里可以继续寻找解决问题的方法？
答案 0 :(得分：2)
我能够重现你的问题。解决方案是从
更改URL中的日历名称 pers%C3%B6nlich至pers%c3%b6nlich
请注意B和C。