fix the build - install python deps in a venv

README.md

@@ -36,7 +36,6 @@ The following commands should be run from the root directory unless otherwise sp
 # build minigeth for MIPS
 (cd mipigo && ./build.sh)
 
-
 # compute the transition from 13284469 -> 13284470 on PC
 TRANSITION_BLOCK=13284469
 mkdir -p /tmp/cannon

mipigo/build.sh

@@ -9,4 +9,11 @@ cd ../mipigo
 cp ../minigeth/go-ethereum minigeth
 file minigeth
 
+if [[ ! -d venv ]]; then
+    python3 -m venv venv
+fi
+
+source venv/bin/activate
+pip3 install -r requirements.txt
 ./compile.py
+deactivate