Python: Make experimental/library-tests/CallGraph pass for Python 2

The import doesn't actually work the intended way, so running
```
$ python python/ql/test/experimental/library-tests/CallGraph/test.py
```

will procude no output. but our extractor will extract the things we need, so
for a quick fix this will need to suffice.
This commit is contained in:
Rasmus Wriedt Larsen
2020-07-13 14:52:28 +02:00
parent 6519629472
commit 83bd14b687