[Python-modules-team] Bug#784645: python3-mockldap has incorrect dependency on python3-ldap3, should have on python3-ldap

[Michał Fita]

Package: python3-mockldap
Version: 0.2.2-3
Severity: grave
Justification: renders package unusable

Dear Maintainer,

Even accoriding to the main description of the mockldap project on https://pypi.python.org/pypi/mockldap the inention is to provide mock replacements for the stuff normally provided by python-ldap.

The python-ldap in Debian is packaged from upstream project https://pypi.python.org/pypi/python-ldap/2.4.19. The problem with that is it still seem to be compatible only with Python 2.

The python3-ldap3 is Debian package based on upstream project https://pypi.python.org/pypi/ldap3/0.9.8.2 which has totally incompatible API with the above and it's based on different principles.

This bug is against the incorrect dependency of python3-mockldap on python3-ldpa3, while it should depend on non-existing python3-ldap or doesn't exist at all. Such dependency confuses potential users of these tools as causes installation of incompatible Python 3 modules on the system.

The only possible option to solve this problem is (quick solution) remove the package python3-mockldap as not very useful while there is no respective python3-ldap or spent some effort on porting upstream python-ldap to Python 3. The latter is not easy task as the Python 3 API to external libraries (openldap in this case) is different that in Python 2.

In my case an attempt to use mockldap as part of the unit test executed in Python 3 end up in error of missing piece:

    ImportError: No module named 'ldap.cidict'

-- System Information:
Debian Release: 8.0
  APT prefers stable
  APT policy: (990, 'stable'), (500, 'oldstable-updates'), (500, 'oldoldstable'), (500, 'stable'), (500, 'oldstable'), (50, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.16.0-4-amd64 (SMP w/12 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages python3-mockldap depends on:
ii  python3-funcparserlib  0.3.6-4
ii  python3-ldap3          0.9.4.2-1
pn  python3:any            <none>

python3-mockldap recommends no packages.

Versions of packages python3-mockldap suggests:
pn  python-mockldap-doc  <none>

-- no debconf information