Bug#948409: python3-clang-9: Python3 files installed to /usr/lib/python2.7

[Mike Gabriel]

Package: python3-clang-9
Severity: grave
Version: 1:9.0.1-4

Hi,

I just tried fixing various autopkgtests in cmake-extras. One test  
involves python3-clang(-9) as currently found in Debian experimental.

Importing from python3-clang-9 fails with this message:

```
[...]
"demolib-include-check" start time: Jan 08 10:45 UTC
Output:
----------------------------------------------------------
Traceback (most recent call last):
   File "/usr/share/cmake/IncludeChecker/include_checker.py", line 23,  
in <module>
     from clang.cindex import Index
ModuleNotFoundError: No module named 'clang'
```

This is very very likely caused by a very defect file tree in  
python-clang-9 1:9.0.1-4:

```
[mike at minobo Temporary]$ dpkg -l python3-clang-9
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name            Version      Architecture Description
+++-===============-============-============-=================================
ii  python3-clang-9 1:9.0.1-4    amd64        Clang Python Bindings
```

```
[mike at minobo Temporary]$ dpkg -L python3-clang-9
/.
/usr
/usr/lib
/usr/lib/python2.7

          ^^^^^^^^^ OUCH!

/usr/lib/python2.7/dist-packages
/usr/lib/python2.7/dist-packages/clang
/usr/lib/python2.7/dist-packages/clang/__init__.py
/usr/lib/python2.7/dist-packages/clang/cindex.py
/usr/lib/python2.7/dist-packages/clang/enumerations.py
/usr/share
/usr/share/doc
/usr/share/doc/python3-clang-9
/usr/share/doc/python3-clang-9/NEWS.Debian.gz
/usr/share/doc/python3-clang-9/changelog.Debian.gz
/usr/share/doc/python3-clang-9/copyright
```

Greets,
Mike
-- 

mike gabriel aka sunweaver (Debian Developer)
mobile: +49 (1520) 1976 148
landline: +49 (4351) 486 14 27

GnuPG Fingerprint: 9BFB AEE8 6C0A A5FF BF22  0782 9AF4 6B30 2577 1B31
mail: sunweaver at debian.org, http://sunweavers.net

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