Summary:
The Python `ExceptionInfo` data has the potential to extend lifetime of Python
objects that were on the Python frame while the execution was thrown. This
lifetime extension is very dangerous when executing Python procedures because
we use a custom internal memory allocator that is destroyed immediately when
the procedure is done with its execution.
This diff only keeps the formatted Python traceback (as a string) to avoid any
lifetime extension for the Python objects so that the memory allocator can
safely be destroyed after the procedure has finished its execution.
Reviewers: llugovic
Reviewed By: llugovic
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D2739
Summary:
This fixes an issue in Py(Vertex|Edge)GetProperty and prevents any
further issues of that type at the cost of additional typing effort.
Reviewers: ipaljak, llugovic
Reviewed By: ipaljak, llugovic
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D2735
Summary:
You should now be able to invoke query procedures written in Python. To
test the example you can run memgraph with PYTHONPATH set to `include`.
For example, assuming you are in the root of the repo, run this command.
PYTHONPATH=$PWD/include ./build/memgraph --query-modules-directory=./query_modules/
Alternatively, you can set a symlink inside the ./query_modules to point
to `include/mgp.py`, so there's no need to set PYTHONPATH. For example,
assuming you are in the root of the repo, run the following.
cd ./query_modules
ln -s ../include/mgp.py
cd ..
./build/memgraph --query-modules-directory=./query_modules/
Depends on D207
Reviewers: mferencevic, ipaljak, dsantl
Reviewed By: ipaljak
Subscribers: buda, tlastre, pullbot
Differential Revision: https://phabricator.memgraph.io/D2708
Summary:
This only imports the `.py` files into the global interpreter. These
modules are not exposed to query execution. A later diff will add that
support.
Reviewers: mferencevic, ipaljak
Reviewed By: mferencevic
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D2660
