解决:File "/usr/lib/python2.7/site-packages/more_itertools/more.py", line 340 def _collate(*iterables, key=lambda a: a, reverse=False): 的报错

Traceback (most recent call last):
File "/snap/users/x1/python/bin/ldapcherryd", line 11, in <module>
load_entry_point('ldapcherry==1.1.1', 'console_scripts', 'ldapcherryd')()
File "/snap/users/x1/python/lib/python2.7/site-packages/pkg_resources/__init__.py", line 487, in load_entry_point
return get_distribution(dist).load_entry_point(group, name)
File "/snap/users/x1/python/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2728, in load_entry_point
return ep.load()
File "/snap/users/x1/python/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2346, in load
return self.resolve()
File "/snap/users/x1/python/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2352, in resolve
module = __import__(self.module_name, fromlist=['__name__'], level=0)
File "/snap/users/x1/python/lib/python2.7/site-packages/ldapcherry-1.1.1-py2.7.egg/ldapcherry/__init__.py", line 19, in <module>
from ldapcherry.exceptions import *
File "/snap/users/x1/python/lib/python2.7/site-packages/ldapcherry-1.1.1-py2.7.egg/ldapcherry/exceptions.py", line 9, in <module>
import cherrypy
File "/snap/users/x1/python/lib/python2.7/site-packages/CherryPy-17.4.1-py2.7.egg/cherrypy/__init__.py", line 66, in <module>
from ._cperror import (
File "/snap/users/x1/python/lib/python2.7/site-packages/CherryPy-17.4.1-py2.7.egg/cherrypy/_cperror.py", line 129, in <module>
from more_itertools import always_iterable
File "build/bdist.linux-x86_64/egg/more_itertools/__init__.py", line 1, in <module>
File "/snap/users/x1/python/lib/python2.7/site-packages/more_itertools-7.0.0-py2.7.egg/more_itertools/more.py", line 333
def _collate(*iterables, key=lambda a: a, reverse=False):
^
SyntaxError: invalid syntax

Maybe related to: https://stackoverflow.com/questions/54648246/invalid-syntax-in-more-itertools-when-running-pytest

I can confirm that requiring a more-itertools dependency that is less than 6.0.0 is required to fix this issue when using Python 2. There is a python3 branch to LdapCherry, and I don’t know if the migration is going to be soon, or if the maintainer plans to maintain two versions.

I also obtained the same error while starting ldapcherry

[root@ldapcherry scripts]# ldapcherryd -c /etc/ldapcherry/ldapcherry.ini -D
Traceback (most recent call last):
File “/bin/ldapcherryd”, line 9, in
load_entry_point(‘ldapcherry==1.1.1’, ‘console_scripts’, ‘ldapcherryd’)()
File “/usr/lib/python2.7/site-packages/pkg_resources.py”, line 378, in load_entry_point
return get_distribution(dist).load_entry_point(group, name)
File “/usr/lib/python2.7/site-packages/pkg_resources.py”, line 2566, in load_entry_point
return ep.load()
File “/usr/lib/python2.7/site-packages/pkg_resources.py”, line 2260, in load
entry = import(self.module_name, globals(),globals(), [‘name‘])
File “/usr/lib/python2.7/site-packages/ldapcherry/init.py”, line 19, in
from ldapcherry.exceptions import *
File “/usr/lib/python2.7/site-packages/ldapcherry/exceptions.py”, line 9, in
import cherrypy
File “/usr/lib/python2.7/site-packages/cherrypy/init.py”, line 66, in
from ._cperror import (
File “/usr/lib/python2.7/site-packages/cherrypy/_cperror.py”, line 129, in
from more_itertools import always_iterable
File “/usr/lib/python2.7/site-packages/more_itertools/init.py”, line 1, in
from more_itertools.more import * # noqa
File “/usr/lib/python2.7/site-packages/more_itertools/more.py”, line 333
def _collate(*iterables, key=lambda a: a, reverse=False):
^
SyntaxError: invalid syntax

The foll. workaround seems to resolve this issue: (CentOS 7.2/Python 2.7.5 and ldapcherry 1.1.1)

$ pip install 'more-itertools<=5.0.0'

This is the correct fix. This issue should be marked as closed.