flask_appbuilder - python-ldap library is not installed

Question

I'm trying to use flask_appbuilder to integrate Apache-superset with LDAP.

I put the configuration in /venv/lib/python3.6/site-packages/superset/config.py

#from flask_appbuilder.security.manager import AUTH_DB,AUTH_LDAP

#AUTH_TYPE = AUTH_LDAP
#AUTH_USER_REGISTRATION = True
#AUTH_LDAP_SERVER = "ldap://X.X.X.X ldap://X.X.X.X"
#AUTH_LDAP_SEARCH = "DC=XX,XX"
#AUTH_LDAP_BIND_USER = "XX\\%s"
#AUTH_LDAP_UID_FIELD = "sAMAccountName"

started superset, there is no error about ldap library, but when I try to login through web I get the error

ERROR:flask_appbuilder.security.manager:python-ldap library is not installed.

Then I started the troubleshooting:

(venv) [root@apache-superset venv]# pip freeze | grep ldap ldap3==2.9
pyldap @ file:///home/btsiklauri/pyldap-3.0.0.post1-py3-none-any.whl
python-ldap==3.3.1 python3-ldap==0.9.8.4


(venv) [root@apache-superset venv]# rpm -qa | grep ldap
python3-ldap3-2.8.1-2.el8.noarch
openldap-2.4.46-15.el8.x86_64
openldap-devel-2.4.46-15.el8.x86_64

I tried to change the import line in the file /venvlib/python3.6/site-packages/flask_appbuilder/security/manager.py:

    # Ensure python-ldap is installed
    try:
        import ldap
    except ImportError:
        log.error("python-ldap library is not installed")
        return None

I tried to install (ldap3, python-ldap, python3-ldap, python-ldap3, pyldap), but with no success.

What else can I check?

Answer 1

I had a similar problem, and it turned out to be a missing dependency of python-ldap (In my case it was pyasn1, pyasn1-modules).

I found this out when I ran import ldap in a python shell and got ModuleNotFoundError: No module named 'pyasn1_modules'

Answer 2

Try pip install python-ldap to install the correct library. Projects don't install every library because that would lead to loads of unused code.