diff --git a/snapcraft_legacy/plugins/v2/python.py b/snapcraft_legacy/plugins/v2/python.py
index 2eb4e21efd..30585d3a67 100644
--- a/snapcraft_legacy/plugins/v2/python.py
+++ b/snapcraft_legacy/plugins/v2/python.py
@@ -19,7 +19,7 @@
 It can be used for python projects where you would want to do:
 
     - import python modules with a requirements.txt
-    - build a python project that has a setup.py
+    - build a python project that has a setup.py or pyproject.toml file
     - install packages straight from pip
 
 This plugin uses the common plugin keywords as well as those for "sources".
@@ -140,7 +140,9 @@ def get_build_commands(self) -> List[str]:
             requirements_cmd = f"pip install {constraints} -U {requirements}"
             build_commands.append(requirements_cmd)
 
-        build_commands.append(f"[ -f setup.py ] && pip install {constraints} -U .")
+        build_commands.append(
+            f"[ -f setup.py -o -f pyproject.toml ] && pip install {constraints} -U ."
+        )
 
         # Now fix shebangs.
         # TODO: replace with snapcraftctl once the two scripts are consolidated
diff --git a/tests/legacy/unit/plugins/v2/test_python.py b/tests/legacy/unit/plugins/v2/test_python.py
index 438c324c91..f14a31d6f4 100644
--- a/tests/legacy/unit/plugins/v2/test_python.py
+++ b/tests/legacy/unit/plugins/v2/test_python.py
@@ -113,7 +113,7 @@ class Options:
         == [
             '"${SNAPCRAFT_PYTHON_INTERPRETER}" -m venv ${SNAPCRAFT_PYTHON_VENV_ARGS} "${SNAPCRAFT_PART_INSTALL}"',
             'SNAPCRAFT_PYTHON_VENV_INTERP_PATH="${SNAPCRAFT_PART_INSTALL}/bin/${SNAPCRAFT_PYTHON_INTERPRETER}"',
-            "[ -f setup.py ] && pip install  -U .",
+            "[ -f setup.py -o -f pyproject.toml ] && pip install  -U .",
         ]
         + _FIXUP_BUILD_COMMANDS
     )
@@ -134,7 +134,7 @@ class Options:
             'SNAPCRAFT_PYTHON_VENV_INTERP_PATH="${SNAPCRAFT_PART_INSTALL}/bin/${SNAPCRAFT_PYTHON_INTERPRETER}"',
             "pip install -c 'constraints.txt' -U pip 'some-pkg; sys_platform != '\"'\"'win32'\"'\"''",
             "pip install -c 'constraints.txt' -U -r 'requirements.txt'",
-            "[ -f setup.py ] && pip install -c 'constraints.txt' -U .",
+            "[ -f setup.py -o -f pyproject.toml ] && pip install -c 'constraints.txt' -U .",
         ]
         + _FIXUP_BUILD_COMMANDS
     )
diff --git a/tests/spread/plugins/v2/build-and-run-hello/task.yaml b/tests/spread/plugins/v2/build-and-run-hello/task.yaml
index 083e9315e4..7d43254175 100644
--- a/tests/spread/plugins/v2/build-and-run-hello/task.yaml
+++ b/tests/spread/plugins/v2/build-and-run-hello/task.yaml
@@ -16,6 +16,7 @@ environment:
   SNAP/python: python-hello
   SNAP/python_multiple_parts: python-hello-multiple-parts
   SNAP/python_multiple_parts_staged: python-hello-multiple-parts-staged
+  SNAP/python_pyproject: python-hello-pyproject
   SNAP/python_staged: python-hello-staged-python
   SNAP/python_with_stage_package_in_base: python-with-stage-package-in-base
   SNAP/python_with_python_package_dep: python-hello-with-python-package-dep
diff --git a/tests/spread/plugins/v2/snaps/python-hello-pyproject/hello b/tests/spread/plugins/v2/snaps/python-hello-pyproject/hello
new file mode 100644
index 0000000000..e3095b2229
--- /dev/null
+++ b/tests/spread/plugins/v2/snaps/python-hello-pyproject/hello
@@ -0,0 +1,2 @@
+def main():
+    print("hello world")
diff --git a/tests/spread/plugins/v2/snaps/python-hello-pyproject/pyproject.toml b/tests/spread/plugins/v2/snaps/python-hello-pyproject/pyproject.toml
new file mode 100644
index 0000000000..6149544990
--- /dev/null
+++ b/tests/spread/plugins/v2/snaps/python-hello-pyproject/pyproject.toml
@@ -0,0 +1,11 @@
+[build-system]
+requires = ["setuptools"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "python_hello_pyproject"
+description = "A simple hello world in python"
+version = "0.0.1"
+
+[project.scripts]
+python-hello-pyproject = "pythonhellopyproject:main"
diff --git a/tests/spread/plugins/v2/snaps/python-hello-pyproject/snap/snapcraft.yaml b/tests/spread/plugins/v2/snaps/python-hello-pyproject/snap/snapcraft.yaml
new file mode 100644
index 0000000000..951d20d932
--- /dev/null
+++ b/tests/spread/plugins/v2/snaps/python-hello-pyproject/snap/snapcraft.yaml
@@ -0,0 +1,18 @@
+name: python-hello-pyproject
+version: "1.0"
+summary: hello world
+description: A simple hello world in python using a pyproject.toml.
+grade: devel
+base: core20
+confinement: strict
+
+apps:
+  python-hello-pyproject:
+    command: bin/python-hello-pyproject
+
+parts:
+  hello:
+    source: .
+    plugin: python
+    python-packages:
+      - pip==20.0.2
diff --git a/tests/spread/plugins/v2/snaps/python-hello-pyproject/src/pythonhellopyproject/__init__.py b/tests/spread/plugins/v2/snaps/python-hello-pyproject/src/pythonhellopyproject/__init__.py
new file mode 120000
index 0000000000..9ad7f2b392
--- /dev/null
+++ b/tests/spread/plugins/v2/snaps/python-hello-pyproject/src/pythonhellopyproject/__init__.py
@@ -0,0 +1 @@
+../../hello
\ No newline at end of file