Get dockerfile working with PyJulia

Dockerfile

@@ -1,30 +1,44 @@
 # This builds a dockerfile containing a working copy of PySR
 # with all pre-requisites installed.
 
-
 ARG VERSION=latest
+
 FROM julia:$VERSION
 
 RUN apt-get update && apt-get upgrade -y && apt-get install -y \
-    build-essential python3 python3-dev python3-pip python3-setuptools \
-    vim git wget curl \
+    make build-essential libssl-dev zlib1g-dev \
+    libbz2-dev libreadline-dev libsqlite3-dev wget curl llvm \
+    libncursesw5-dev xz-utils tk-dev libxml2-dev libxmlsec1-dev libffi-dev liblzma-dev \
+    vim git \
     && apt-get clean \
     && rm -rf /var/lib/apt/lists/*
 
 WORKDIR /pysr
 
+# Install PyEnv to switch Python to dynamically linked version:
+RUN curl https://pyenv.run | bash
+ENV PATH="/root/.pyenv/bin:$PATH"
+
+ENV PYTHON_VERSION="3.9.10"
+RUN PYTHON_CONFIGURE_OPTS="--enable-shared" pyenv install ${PYTHON_VERSION}
+ENV PATH="/root/.pyenv/versions/${PYTHON_VERSION}/bin:$PATH"
+
+# Install IPython and other useful libraries:
+RUN pip install ipython jupyter matplotlib
+
 # Caches install (https://stackoverflow.com/questions/25305788/how-to-avoid-reinstalling-packages-when-building-docker-image-for-python-project)
 ADD ./requirements.txt /pysr/requirements.txt
 RUN pip3 install -r /pysr/requirements.txt
 
 # Install PySR:
-ADD . /pysr/
+# We do a minimal copy so it doesn't need to rerun at every file change:
+ADD ./setup.py /pysr/setup.py
+ADD ./README.md /pysr/README.md
+Add ./Project.toml /pysr/Project.toml
+ADD ./pysr/ /pysr/pysr/
 RUN pip3 install .
 
 # Install Julia pre-requisites:
-RUN julia -e 'using Pkg; Pkg.add("SymbolicRegression")'
-
-# Install IPython and other useful libraries:
-RUN pip3 install ipython jupyter matplotlib
+RUN python3 -c 'import pysr; pysr.install()'
 
-CMD ["bash"]
+CMD ["bash"]

pysr/sr.py

@@ -23,8 +23,8 @@ def install(julia_project=None):
     from julia import Pkg
 
     Pkg.activate(f"{_escape_filename(julia_project)}")
-    Pkg.instantiate()
     Pkg.update()
+    Pkg.instantiate()
     Pkg.precompile()