Bug#1117981: python3-loki-ecmwf fails to install

[Adrian Bunk]

Package: python3-loki-ecmwf
Version: 0.3.4-1
Severity: grave
Control: block 1115187 by -1

https://piuparts.debian.org/sid/fail/python3-loki-ecmwf_0.3.4-1.log

...
  Setting up python3-loki-ecmwf (0.3.4-1) ...
  /usr/lib/python3/dist-packages/loki/ir/tests/test_ir_nodes.py:159: SyntaxWarning: "is" with 'tuple' literal. Did you mean "=="?
    assert cond.body is () and not cond.else_body
  /usr/lib/python3/dist-packages/loki/ir/tests/test_ir_nodes.py:252: SyntaxWarning: "is" with 'tuple' literal. Did you mean "=="?
    assert sec.body is ()
    File "/usr/lib/python3/dist-packages/loki/transformations/array_indexing/tests/test_vector_notation.py", line 55
      <<<<<<< HEAD
      ^^
  SyntaxError: invalid syntax
  dpkg: error processing package python3-loki-ecmwf (--configure):
   installed python3-loki-ecmwf package post-installation script subprocess returned error exit status 1
...