Add venv,pyenv,direnv (#763)

.envrc

@@ -0,0 +1,20 @@
+set -e
+
+# Ensure pyenv is initialized
+if command -v pyenv >/dev/null; then
+    eval "$(pyenv init -)"
+fi
+# Set the local Python version
+if ! pyenv local $(cat .python-version); then
+    log_error "Failed to activate pyenv version $(cat .python-version)."
+    log_error "Please ensure pyenv works and has the required python version:"
+    log_error "# pyenv install $(cat .python-version) && direnv allow"
+    exit 1
+fi
+# Create a virtual environment if it doesn't exist
+if [ ! -d ".venv" ]; then
+    python -m venv .venv
+    echo "Created virtual environment in .venv"
+fi
+# Activate the virtual environment
+source .venv/bin/activate

.gitignore

@@ -56,4 +56,4 @@ voxometadata/secrets
 # Env vars
 .env
 
-.python-version
+.venv

.python-version

@@ -0,0 +1 @@
+3.8.12

README.md

@@ -2,6 +2,15 @@
 
 Read this article: https://cloud.google.com/blog/products/data-analytics/ethereum-bigquery-how-we-built-dataset
 
+## Local Development Prerequisites
+
+- direnv
+- pyenv
+
+
+We are using direnv to automatically set up and load the correct python version. We also create a venv in the root folder, 
+that is automatically activated when entering the project folder.
+
 ## Setting up Airflow DAGs using Google Cloud Composer
 
 ### Create BigQuery Datasets