Xtykutl

I need some basic help on docopt with python3.7 .I am using in pyCharm.
I tried to let run the example code which is shown on the docopt.org website. But the system is throwing usage errors.
I installed the doctop through pip install docopt an have version 0.6.2 .
I found a thread with the same error messages, but the user didn't have a docstring in it, so that is why it didn't work for him.

Here is the code:

#!/usr/bin/python

# -*- coding: utf-8 -*-



"""Naval fate.



Usage:

  naval_fate.py  ship new <name>...

  naval_fate.py  ship <name> move <x> <y> [ --speed=<kn>]

  naval_fate.py  ship shoot <x> <y>

  naval_fate.py  mine (set|remove) <x> <y> [--moored|--drifting}

  naval_fate.py  -h| --help

  naval_fate.py  --version



Options:

  -h --help     Show this screen.

  --version     Show version.  

  --speed=<kn>  Speed in knots [default: 10].

  -- moored     Moored (anchored) mine.

  -- drifting   Drifting mine.



"""

from docopt import docopt



if __name__ == '__main__':

    arguments = docopt(__doc__, version='1')

    print(arguments)

Here is ther ERROR:

...Scriptspython.exe 

.../naval_fate.py

Traceback (most recent call last):

  File 

".../naval_fate.py", line 27, in <module>

    arguments = docopt(__doc__, version='1')

  File "...libsite-packagesdocopt.py", line 558, in docopt

    DocoptExit.usage = printable_usage(doc)

  File "...libsite-packagesdocopt.py", line 466, in printable_usage

    usage_split = re.split(r'([Uu][Ss][Aa][Gg][Ee]:)', doc)

  File "C:PythonPython37Libre.py", line 213, in split

    return _compile(pattern, flags).split(string, maxsplit)

TypeError: expected string or bytes-like object



Process finished with exit code 1

What I tried:

• deleted the file extensions of naval_fate.py.


• uninstalled and reinstalled docopt.


• changed the positions of the words in and after the usage and options
  sections.


• used two spaces between the options and the text (as found in another
  thread)


• tried to format outside the docstring in diffrent ways.

e.g

from docopt

...

arguments = docopt.docopt(__doc__, version='1')

instead of

from docopt import docopt

...

arguments = docopt(__doc__, version='1')

But it all didn't help. Does anybody have an idea?
Thanks so far.

Well, I found it! It was the curly braces at the end of the line in the 'Usage' part.

naval_fate.py  mine (set|remove) <x> <y> [--moored|--drifting}

After changing it to ] everything worked well.

Hopefully I can help someone else with this little(big) mistake.