[pytests] Use poetry and cleanup python tests

docker/Dockerfile

@@ -16,9 +16,6 @@ RUN apt-get install -qq \
   git \
   libzstd1 \
   libzstd-dev \
-  python3-pytest \
-  python3-pytest-asyncio \
-  python3-websockets \
   sudo \
   zlib1g \
   zlib1g-dev \
@@ -46,15 +43,14 @@ RUN mkdir /usr/bin/sdk/bpf/dependencies \
 USER pyth
 WORKDIR /home/pyth
 
+# Install poetry 
+RUN curl -sSL https://install.python-poetry.org | python3 -
+ENV PATH="${PATH}:/home/pyth/.local/bin:/home/pyth/pyth-client/build"
+
+#Install rust
 RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs \
   | sh -s -- -y 
 
-
-RUN echo "\n\
-export PATH=\"\${PATH}:\${HOME}/pyth-client/build:\${HOME}/.cargo/bin\"\n\
-export PYTHONPATH=\"\${PYTHONPATH:+\$PYTHONPATH:}\${HOME}/pyth-client\"\n\
-" >> .profile
-
 COPY --chown=pyth:pyth . pyth-client/
 
 # Build off-chain binaries.
@@ -69,7 +65,7 @@ RUN cd pyth-client && ./scripts/build-bpf.sh .
 RUN cd pyth-client && ./scripts/check-size.sh
 # Run aggregation logic tests
 RUN cd pyth-client && ./scripts/run-aggregation-tests.sh
-RUN /bin/bash -l -c "pytest-3 --pyargs pyth"
+RUN cd pyth-client/pyth && poetry install && poetry run python -m pytest
 
 ENTRYPOINT []
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