invalid choice

[caozilu]

safaribooks: error: invalid choice: "sessionid=xxxxxxxxxxxxxxxxxxxxxx;'" (choose from 'download-epub', 'download', 'convert-to-mobi')

my input:
safaribooks -o 'C:\Users\xxx\Downloads' -c 'BrowserCookie=xxxxxxxxxxxxxxxxxxxxxxxxx; sessionid=xxxxxxxxxxxxxx;' -b 9781118026694 download

[yoko1998]

It seems despite what instruction says you have to use double quotes instead of single quotes or remove space before sessionid. However this anyway leads to next error, trying to understand what the issue is.
File "c:\users\qqq\appdata\local\programs\python\python36-32\lib\site-packages\safaribooks\spiders\safaribooks.py", line 91, in parse
cookies = dict(x.strip().split('=') for x in self.cookie.split(';'))
ValueError: dictionary update sequence element #2 has length 1; 2 is required

[yoko1998]

Well if you remove last ; it will pass that second problem and you will be able to go.

However, next thing it tries to navigate to TOC page which URL seems to be changed on safari since this parser was previousely written. (See issue #49 )