#127 python 3.7 async keyword

[Bergiu]

My Operating System:
Parabola GNU/Linux libre

The version of:
pyclewn
1.8.py3
python
3.7
vim
NVIM v0.3.1
gdb
GNU gdb (GDB) 8.2

Instructions how to reproduce the bug

$ hg clone http://hg.code.sf.net/p/pyclewn/pyclewn pyclewn-pyclewn
$ cd pyclewn-pyclewn
$ python setup.py install --force
Traceback (most recent call last):
  File "setup.py", line 20, in <module>
    import pyclewn_install
  File "/home/bergiu/Downloads/Programme/pyclewn-pyclewn/pyclewn_install.py", line 15, in <module>
    import clewn.vim as vim
  File "/home/bergiu/Downloads/Programme/pyclewn-pyclewn/clewn/vim.py", line 42, in <module>
    from . import (misc, gdb, simple, netbeans, evtloop)
  File "/home/bergiu/Downloads/Programme/pyclewn-pyclewn/clewn/gdb.py", line 685
    self.async = False
             ^
SyntaxError: invalid syntax

I think this is related to this bug, where it says, that "async" is a keyword in python 3.7.