Update Dockerfile

Dockerfile

@@ -31,6 +31,6 @@ run ~/miniconda/bin/conda env create -f ./env.yml
 #run cd cpython && make clean
 
 run ~/miniconda/bin/conda init
-run ~/miniconda/bin/activate env \
-    && python3 -m venv env \
-    && python3 ./code.py
+run ~/miniconda/bin/activate env
+
+entrypoint ["~/miniconda/bin/activate","run","code.py"]