diff --git a/src/providers/python.rs b/src/providers/python.rs
index 7cd87ee43b..12ae528eaf 100644
--- a/src/providers/python.rs
+++ b/src/providers/python.rs
@@ -61,6 +61,11 @@ impl Provider for PythonProvider {
             plan.set_start_phase(start);
         }
 
+        plan.add_variables(EnvironmentVariables::from([(
+            "PYTHONUNBUFFERED".to_owned(),
+            "1".to_owned(),
+        )]));
+
         if app.includes_file("poetry.lock") {
             plan.add_variables(EnvironmentVariables::from([(
                 "NIXPACKS_POETRY_VERSION".to_string(),
diff --git a/tests/snapshots/generate_plan_tests__python.snap b/tests/snapshots/generate_plan_tests__python.snap
index cc553dd5dd..c8109088fe 100644
--- a/tests/snapshots/generate_plan_tests__python.snap
+++ b/tests/snapshots/generate_plan_tests__python.snap
@@ -6,7 +6,8 @@ expression: plan
   "nixpacksVersion": "[version]",
   "buildImage": "[build_image]",
   "variables": {
-    "NIXPACKS_METADATA": "python"
+    "NIXPACKS_METADATA": "python",
+    "PYTHONUNBUFFERED": "1"
   },
   "phases": [
     {
diff --git a/tests/snapshots/generate_plan_tests__python_2.snap b/tests/snapshots/generate_plan_tests__python_2.snap
index 87ca7c9629..3d47001c8e 100644
--- a/tests/snapshots/generate_plan_tests__python_2.snap
+++ b/tests/snapshots/generate_plan_tests__python_2.snap
@@ -6,7 +6,8 @@ expression: plan
   "nixpacksVersion": "[version]",
   "buildImage": "[build_image]",
   "variables": {
-    "NIXPACKS_METADATA": "python"
+    "NIXPACKS_METADATA": "python",
+    "PYTHONUNBUFFERED": "1"
   },
   "phases": [
     {
diff --git a/tests/snapshots/generate_plan_tests__python_2_runtime.snap b/tests/snapshots/generate_plan_tests__python_2_runtime.snap
index 87ca7c9629..3d47001c8e 100644
--- a/tests/snapshots/generate_plan_tests__python_2_runtime.snap
+++ b/tests/snapshots/generate_plan_tests__python_2_runtime.snap
@@ -6,7 +6,8 @@ expression: plan
   "nixpacksVersion": "[version]",
   "buildImage": "[build_image]",
   "variables": {
-    "NIXPACKS_METADATA": "python"
+    "NIXPACKS_METADATA": "python",
+    "PYTHONUNBUFFERED": "1"
   },
   "phases": [
     {
diff --git a/tests/snapshots/generate_plan_tests__python_django.snap b/tests/snapshots/generate_plan_tests__python_django.snap
index aeb2a4256e..282114b5f5 100644
--- a/tests/snapshots/generate_plan_tests__python_django.snap
+++ b/tests/snapshots/generate_plan_tests__python_django.snap
@@ -6,7 +6,8 @@ expression: plan
   "nixpacksVersion": "[version]",
   "buildImage": "[build_image]",
   "variables": {
-    "NIXPACKS_METADATA": "python,django,postgres"
+    "NIXPACKS_METADATA": "python,django,postgres",
+    "PYTHONUNBUFFERED": "1"
   },
   "phases": [
     {
diff --git a/tests/snapshots/generate_plan_tests__python_django_mysql.snap b/tests/snapshots/generate_plan_tests__python_django_mysql.snap
index e380b742c3..8ef6fa5dce 100644
--- a/tests/snapshots/generate_plan_tests__python_django_mysql.snap
+++ b/tests/snapshots/generate_plan_tests__python_django_mysql.snap
@@ -6,7 +6,8 @@ expression: plan
   "nixpacksVersion": "[version]",
   "buildImage": "[build_image]",
   "variables": {
-    "NIXPACKS_METADATA": "python,django"
+    "NIXPACKS_METADATA": "python,django",
+    "PYTHONUNBUFFERED": "1"
   },
   "phases": [
     {
diff --git a/tests/snapshots/generate_plan_tests__python_numpy.snap b/tests/snapshots/generate_plan_tests__python_numpy.snap
index cc553dd5dd..c8109088fe 100644
--- a/tests/snapshots/generate_plan_tests__python_numpy.snap
+++ b/tests/snapshots/generate_plan_tests__python_numpy.snap
@@ -6,7 +6,8 @@ expression: plan
   "nixpacksVersion": "[version]",
   "buildImage": "[build_image]",
   "variables": {
-    "NIXPACKS_METADATA": "python"
+    "NIXPACKS_METADATA": "python",
+    "PYTHONUNBUFFERED": "1"
   },
   "phases": [
     {
diff --git a/tests/snapshots/generate_plan_tests__python_poetry.snap b/tests/snapshots/generate_plan_tests__python_poetry.snap
index 0d1379e43e..3318e3caab 100644
--- a/tests/snapshots/generate_plan_tests__python_poetry.snap
+++ b/tests/snapshots/generate_plan_tests__python_poetry.snap
@@ -7,7 +7,8 @@ expression: plan
   "buildImage": "[build_image]",
   "variables": {
     "NIXPACKS_METADATA": "python,poetry",
-    "NIXPACKS_POETRY_VERSION": "1.1.13"
+    "NIXPACKS_POETRY_VERSION": "1.1.13",
+    "PYTHONUNBUFFERED": "1"
   },
   "phases": [
     {
diff --git a/tests/snapshots/generate_plan_tests__python_procfile.snap b/tests/snapshots/generate_plan_tests__python_procfile.snap
index f7641b1238..f46415791e 100644
--- a/tests/snapshots/generate_plan_tests__python_procfile.snap
+++ b/tests/snapshots/generate_plan_tests__python_procfile.snap
@@ -6,7 +6,8 @@ expression: plan
   "nixpacksVersion": "[version]",
   "buildImage": "[build_image]",
   "variables": {
-    "NIXPACKS_METADATA": "python"
+    "NIXPACKS_METADATA": "python",
+    "PYTHONUNBUFFERED": "1"
   },
   "phases": [
     {
diff --git a/tests/snapshots/generate_plan_tests__python_setuptools.snap b/tests/snapshots/generate_plan_tests__python_setuptools.snap
index 1fe1b7f920..23a0fa4b4f 100644
--- a/tests/snapshots/generate_plan_tests__python_setuptools.snap
+++ b/tests/snapshots/generate_plan_tests__python_setuptools.snap
@@ -6,7 +6,8 @@ expression: plan
   "nixpacksVersion": "[version]",
   "buildImage": "[build_image]",
   "variables": {
-    "NIXPACKS_METADATA": "python"
+    "NIXPACKS_METADATA": "python",
+    "PYTHONUNBUFFERED": "1"
   },
   "phases": [
     {