diff --git a/tests/Makefile.include b/tests/Makefile.include
index fa46c0c61b..3accb83b13 100644
--- a/tests/Makefile.include
+++ b/tests/Makefile.include
@@ -110,6 +110,7 @@ quiet-venv-pip = $(quiet-@)$(call quiet-command-run, \
 
 $(TESTS_VENV_DIR): $(TESTS_VENV_REQ)
 	$(call quiet-command, $(PYTHON) -m venv $@, VENV, $@)
+	$(call quiet-venv-pip,install -e "$(SRC_PATH)/python/")
 	$(call quiet-venv-pip,install -r $(TESTS_VENV_REQ))
 	$(call quiet-command, touch $@)
 
diff --git a/tests/avocado/avocado_qemu/__init__.py b/tests/avocado/avocado_qemu/__init__.py
index 39f15c1d51..b656a70c55 100644
--- a/tests/avocado/avocado_qemu/__init__.py
+++ b/tests/avocado/avocado_qemu/__init__.py
@@ -21,6 +21,11 @@ import avocado
 from avocado.utils import cloudinit, datadrainer, process, ssh, vmimage
 from avocado.utils.path import find_command
 
+from qemu.machine import QEMUMachine
+from qemu.utils import (get_info_usernet_hostfwd_port, kvm_available,
+                        tcg_available)
+
+
 #: The QEMU build root directory.  It may also be the source directory
 #: if building from the source dir, but it's safer to use BUILD_DIR for
 #: that purpose.  Be aware that if this code is moved outside of a source
@@ -35,12 +40,6 @@ if os.path.islink(os.path.dirname(os.path.dirname(__file__))):
 else:
     SOURCE_DIR = BUILD_DIR
 
-sys.path.append(os.path.join(SOURCE_DIR, 'python'))
-
-from qemu.machine import QEMUMachine
-from qemu.utils import (get_info_usernet_hostfwd_port, kvm_available,
-                        tcg_available)
-
 
 def has_cmd(name, args=None):
     """
diff --git a/tests/avocado/virtio_check_params.py b/tests/avocado/virtio_check_params.py
index e869690473..4093da8a67 100644
--- a/tests/avocado/virtio_check_params.py
+++ b/tests/avocado/virtio_check_params.py
@@ -22,7 +22,6 @@ import os
 import re
 import logging
 
-sys.path.append(os.path.join(os.path.dirname(__file__), '..', '..', 'python'))
 from qemu.machine import QEMUMachine
 from avocado_qemu import QemuSystemTest
 from avocado import skip
diff --git a/tests/avocado/virtio_version.py b/tests/avocado/virtio_version.py
index 208910bb84..c84e48813a 100644
--- a/tests/avocado/virtio_version.py
+++ b/tests/avocado/virtio_version.py
@@ -11,7 +11,6 @@ Check compatibility of virtio device types
 import sys
 import os
 
-sys.path.append(os.path.join(os.path.dirname(__file__), '..', '..', 'python'))
 from qemu.machine import QEMUMachine
 from avocado_qemu import QemuSystemTest
 
diff --git a/tests/requirements.txt b/tests/requirements.txt
index a21b59b443..0ba561b6bd 100644
--- a/tests/requirements.txt
+++ b/tests/requirements.txt
@@ -1,5 +1,6 @@
 # Add Python module requirements, one per line, to be installed
 # in the tests/venv Python virtual environment. For more info,
 # refer to: https://pip.pypa.io/en/stable/user_guide/#id1
+# Note that qemu.git/python/ is always implicitly installed.
 avocado-framework==88.1
 pycdlib==1.11.0