diff --git a/oscillator-overlap/mass-left-python/requirements.txt b/oscillator-overlap/mass-left-python/requirements.txt
new file mode 100644
index 000000000..9dff131c5
--- /dev/null
+++ b/oscillator-overlap/mass-left-python/requirements.txt
@@ -0,0 +1,3 @@
+numpy >1, <2
+pyprecice~=3.0
+scipy
diff --git a/oscillator-overlap/mass-left-python/run.sh b/oscillator-overlap/mass-left-python/run.sh
index 2a3902739..f8949a10c 100755
--- a/oscillator-overlap/mass-left-python/run.sh
+++ b/oscillator-overlap/mass-left-python/run.sh
@@ -1,6 +1,10 @@
 #!/usr/bin/env bash
 set -e -u
 
+python3 -m venv .venv
+. .venv/bin/activate
+pip install -r requirements.txt
+
 . ../../tools/log.sh
 exec > >(tee --append "$LOGFILE") 2>&1
 
diff --git a/oscillator-overlap/mass-right-python/requirements.txt b/oscillator-overlap/mass-right-python/requirements.txt
new file mode 100644
index 000000000..9dff131c5
--- /dev/null
+++ b/oscillator-overlap/mass-right-python/requirements.txt
@@ -0,0 +1,3 @@
+numpy >1, <2
+pyprecice~=3.0
+scipy
diff --git a/oscillator-overlap/mass-right-python/run.sh b/oscillator-overlap/mass-right-python/run.sh
index e34e0aa8d..7fe22e7de 100755
--- a/oscillator-overlap/mass-right-python/run.sh
+++ b/oscillator-overlap/mass-right-python/run.sh
@@ -1,6 +1,10 @@
 #!/usr/bin/env bash
 set -e -u
 
+python3 -m venv .venv
+. .venv/bin/activate
+pip install -r requirements.txt
+
 . ../../tools/log.sh
 exec > >(tee --append "$LOGFILE") 2>&1
 
diff --git a/oscillator/mass-left-python/requirements.txt b/oscillator/mass-left-python/requirements.txt
new file mode 100644
index 000000000..9dff131c5
--- /dev/null
+++ b/oscillator/mass-left-python/requirements.txt
@@ -0,0 +1,3 @@
+numpy >1, <2
+pyprecice~=3.0
+scipy
diff --git a/oscillator/mass-left-python/run.sh b/oscillator/mass-left-python/run.sh
index 2a3902739..f8949a10c 100755
--- a/oscillator/mass-left-python/run.sh
+++ b/oscillator/mass-left-python/run.sh
@@ -1,6 +1,10 @@
 #!/usr/bin/env bash
 set -e -u
 
+python3 -m venv .venv
+. .venv/bin/activate
+pip install -r requirements.txt
+
 . ../../tools/log.sh
 exec > >(tee --append "$LOGFILE") 2>&1
 
diff --git a/oscillator/mass-right-python/requirements.txt b/oscillator/mass-right-python/requirements.txt
new file mode 100644
index 000000000..9dff131c5
--- /dev/null
+++ b/oscillator/mass-right-python/requirements.txt
@@ -0,0 +1,3 @@
+numpy >1, <2
+pyprecice~=3.0
+scipy
diff --git a/oscillator/mass-right-python/run.sh b/oscillator/mass-right-python/run.sh
index e34e0aa8d..7fe22e7de 100755
--- a/oscillator/mass-right-python/run.sh
+++ b/oscillator/mass-right-python/run.sh
@@ -1,6 +1,10 @@
 #!/usr/bin/env bash
 set -e -u
 
+python3 -m venv .venv
+. .venv/bin/activate
+pip install -r requirements.txt
+
 . ../../tools/log.sh
 exec > >(tee --append "$LOGFILE") 2>&1