This was a bug due to the latest version of python but it has been fixed.

https://github.com/odoo/odoo/pull/25783

Do not hesitate to report us (preferably on github) other compatibility issues you may find.

Thanks DHA Medic. Unfortunately this one gives me another syntax error:

(odoo.env) iMac-van-Peter:odoo haasdijk$ ./odoo-bin --config=./debian/odoo.conf
2018-07-09 12:05:15,227 19691 INFO ? odoo: Odoo version 11.0
2018-07-09 12:05:15,227 19691 INFO ? odoo: Using configuration file at /Users/haasdijk/odoo.env/odoo/debian/odoo.conf
2018-07-09 12:05:15,227 19691 INFO ? odoo: addons paths: ['/Users/haasdijk/Library/Application Support/Odoo/addons/11.0', '/Users/haasdijk/odoo.env/odoo/odoo/addons', '/Users/haasdijk/odoo.env/odoo/addons']
2018-07-09 12:05:15,227 19691 INFO ? odoo: database: odoo@default:default
2018-07-09 12:05:15,365 19691 INFO ? odoo.addons.base.ir.ir_actions_report: You need Wkhtmltopdf to print a pdf version of the reports.
Exception in thread odoo.service.cron.cron0:
Traceback (most recent call last):
  File "/usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/lib/python3.7/threading.py", line 917, in _bootstrap_inner
    self.run()
  File "/usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/lib/python3.7/threading.py", line 865, in run
    self._target(*self._args, **self._kwargs)
  File "/Users/haasdijk/odoo.env/odoo/odoo/service/server.py", line 242, in target
    self.cron_thread(i)
  File "/Users/haasdijk/odoo.env/odoo/odoo/service/server.py", line 216, in cron_thread
    from odoo.addons.base.ir.ir_cron import ir_cron
  File "<frozen importlib._bootstrap>", line 983, in _find_and_load
  File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 668, in _load_unlocked
  File "<frozen importlib._bootstrap>", line 638, in _load_backward_compatible
  File "/Users/haasdijk/odoo.env/odoo/odoo/modules/module.py", line 82, in load_module
    exec(open(modfile, 'rb').read(), new_mod.__dict__)
  File "<string>", line 4, in <module>
  File "/Users/haasdijk/odoo.env/odoo/odoo/addons/base/ir/__init__.py", line 21, in <module>
    from . import ir_qweb
  File "/Users/haasdijk/odoo.env/odoo/odoo/addons/base/ir/ir_qweb/__init__.py", line 5, in <module>
    from . import assetsbundle
  File "/Users/haasdijk/odoo.env/odoo/odoo/addons/base/ir/ir_qweb/assetsbundle.py", line 105
    def to_html(self, sep=None, css=True, js=True, debug=False, async=False, url_for=(lambda url: url)):
                                                                    ^
SyntaxError: invalid syntax

./odoo-bin --config=/your_path/your_odoo.conf