Add dockerfile for debugging pycall

pycall_debug.dockerfile

@@ -0,0 +1,41 @@
+FROM debian:bullseye-slim
+
+ENV DEBIAN_FRONTEND=noninteractive
+
+# Install juliaup and pyenv:
+RUN apt-get update && apt-get install -y curl
+
+# Install juliaup:
+RUN curl -fsSL https://install.julialang.org | sh -s -- -y
+
+RUN apt-get install -y git build-essential libssl-dev zlib1g-dev libbz2-dev \
+    libreadline-dev libsqlite3-dev libncurses5-dev libncursesw5-dev \
+    xz-utils libffi-dev liblzma-dev
+
+# Install pyenv:
+RUN curl -fsSL curl https://pyenv.run | sh && \
+    echo 'export PATH="/root/.pyenv/bin:$PATH"' >> ~/.bashrc && \
+    echo 'export PYENV_ROOT="$HOME/.pyenv"' >> ~/.bashrc && \
+    echo 'eval "$(pyenv init -)"' >> ~/.bashrc && \
+    echo 'eval "$(pyenv virtualenv-init -)"' >> ~/.bashrc
+
+# Default to using bash -l:
+SHELL ["/bin/bash", "-l", "-c"]
+
+RUN juliaup add 1.8 && juliaup default 1.8
+RUN pyenv install 3.9.2 && pyenv global 3.9.2
+RUN python3 -m pip install --upgrade pip
+
+# Try to install pysr:
+RUN python3 -m pip install pysr==0.14.2
+RUN python3 -m pysr install
+
+# Change Python version:
+RUN pyenv install 3.10 && pyenv global 3.10 && pyenv uninstall -f 3.9.2
+RUN python3 -m pip install --upgrade pip
+
+# Try to use PySR:
+RUN python3 -m pip install pysr==0.14.2
+RUN rm -r ~/.julia/environments/pysr-0.14.2
+# RUN julia -e 'using Pkg; Pkg.add("PyCall"); Pkg.build("PyCall")'
+# RUN python3 -m pysr install