Using poetry as a dependency system for development

.envrc

@@ -1 +1,14 @@
-source ./env/bin/activate
+if [[ ! -f pyproject.toml ]]; then
+  log_error 'No pyproject.toml found. Use `poetry new` or `poetry init` to create one first.'
+  exit 2
+fi
+
+local VENV=$(poetry env list --full-path | cut -d' ' -f1)
+if [[ -z $VENV || ! -d $VENV/bin ]]; then
+  log_error 'No poetry virtual environment found. Use `poetry install` to create one first.'
+  exit 2
+fi
+
+export VIRTUAL_ENV=$VENV
+export POETRY_ACTIVE=1
+PATH_add "$VENV/bin"