diff --git a/support/testing/tests/package/test_python.py b/support/testing/tests/package/test_python.py
index c9ecf9acda..e815376d21 100644
--- a/support/testing/tests/package/test_python.py
+++ b/support/testing/tests/package/test_python.py
@@ -17,6 +17,9 @@ class TestPythonBase(infra.basetest.BRTest):
                            kernel="builtin",
                            options=["-initrd", cpio_file])
         self.emulator.login()
+        # Disable Python colors for all Python tests, to make pexpect
+        # pattern matching easier.
+        self.assertRunOk("export NO_COLOR=1")
 
     def version_test(self, version, timeout=-1):
         cmd = self.interpreter + " --version 2>&1 | grep '^{}'".format(version)