pyflyte run imperative workflows

flytekit/clis/sdk_in_container/constants.py

@@ -7,6 +7,8 @@
 CTX_PACKAGES = "pkgs"
 CTX_NOTIFICATIONS = "notifications"
 CTX_CONFIG_FILE = "config_file"
+CTX_PROJECT_ROOT = "project_root"
+CTX_MODULE = "module"
 
 
 project_option = _click.option(

flytekit/clis/sdk_in_container/run.py

@@ -15,11 +15,17 @@
 from typing_extensions import get_args
 
 from flytekit import BlobType, Literal, Scalar
-from flytekit.clis.sdk_in_container.constants import CTX_CONFIG_FILE, CTX_DOMAIN, CTX_PROJECT
+from flytekit.clis.sdk_in_container.constants import (
+    CTX_CONFIG_FILE,
+    CTX_DOMAIN,
+    CTX_MODULE,
+    CTX_PROJECT,
+    CTX_PROJECT_ROOT,
+)
 from flytekit.clis.sdk_in_container.helpers import FLYTE_REMOTE_INSTANCE_KEY, get_and_save_remote_with_click_context
 from flytekit.configuration import ImageConfig
 from flytekit.configuration.default_images import DefaultImages
-from flytekit.core import context_manager, tracker
+from flytekit.core import context_manager
 from flytekit.core.base_task import PythonTask
 from flytekit.core.context_manager import FlyteContext
 from flytekit.core.data_persistence import FileAccessProvider
@@ -480,14 +486,12 @@ def get_entities_in_file(filename: str) -> Entities:
     workflows = []
     tasks = []
     module = importlib.import_module(module_name)
-    for k in dir(module):
-        o = module.__dict__[k]
-        if isinstance(o, PythonFunctionWorkflow):
-            _, _, fn, _ = tracker.extract_task_module(o)
-            workflows.append(fn)
+    for name in dir(module):
+        o = module.__dict__[name]
+        if isinstance(o, WorkflowBase):
+            workflows.append(name)
         elif isinstance(o, PythonTask):
-            _, _, fn, _ = tracker.extract_task_module(o)
-            tasks.append(fn)
+            tasks.append(name)
 
     return Entities(workflows, tasks)
 
@@ -542,6 +546,8 @@ def _run(*args, **kwargs):
             domain=domain,
             image_config=image_config,
             destination_dir=run_level_params.get("destination_dir"),
+            source_path=ctx.obj[RUN_LEVEL_PARAMS_KEY].get(CTX_PROJECT_ROOT),
+            module_name=ctx.obj[RUN_LEVEL_PARAMS_KEY].get(CTX_MODULE),
         )
 
         options = None
@@ -602,11 +608,16 @@ def get_command(self, ctx, exe_entity):
             )
 
         project_root = _find_project_root(self._filename)
+
         # Find the relative path for the filename relative to the root of the project.
         # N.B.: by construction project_root will necessarily be an ancestor of the filename passed in as
         # a parameter.
         rel_path = self._filename.relative_to(project_root)
         module = os.path.splitext(rel_path)[0].replace(os.path.sep, ".")
+
+        ctx.obj[RUN_LEVEL_PARAMS_KEY][CTX_PROJECT_ROOT] = project_root
+        ctx.obj[RUN_LEVEL_PARAMS_KEY][CTX_MODULE] = module
+
         entity = load_naive_entity(module, exe_entity, project_root)
 
         # If this is a remote execution, which we should know at this point, then create the remote object

flytekit/core/tracker.py

@@ -4,6 +4,7 @@
 import inspect as _inspect
 import os
 import typing
+from types import ModuleType
 from typing import Callable, Tuple, Union
 
 from flytekit.configuration.feature_flags import FeatureFlags
@@ -239,6 +240,11 @@ def extract_task_module(f: Union[Callable, TrackedInstance]) -> Tuple[str, str,
     if mod_name == "__main__":
         return name, "", name, os.path.abspath(inspect.getfile(f))
 
+    mod_name = get_full_module_path(mod, mod_name)
+    return f"{mod_name}.{name}", mod_name, name, os.path.abspath(inspect.getfile(mod))
+
+
+def get_full_module_path(mod: ModuleType, mod_name: str) -> str:
     if FeatureFlags.FLYTE_PYTHON_PACKAGE_ROOT != ".":
         package_root = (
             FeatureFlags.FLYTE_PYTHON_PACKAGE_ROOT if FeatureFlags.FLYTE_PYTHON_PACKAGE_ROOT != "auto" else None
@@ -247,4 +253,4 @@ def extract_task_module(f: Union[Callable, TrackedInstance]) -> Tuple[str, str,
         # We only replace the mod_name if it is more specific, else we already have a fully resolved path
         if len(new_mod_name) > len(mod_name):
             mod_name = new_mod_name
-    return f"{mod_name}.{name}", mod_name, name, os.path.abspath(inspect.getfile(mod))
+    return mod_name

flytekit/remote/remote.py

@@ -577,6 +577,8 @@ def register_script(
         destination_dir: str = ".",
         default_launch_plan: typing.Optional[bool] = True,
         options: typing.Optional[Options] = None,
+        source_path: typing.Optional[str] = None,
+        module_name: typing.Optional[str] = None,
     ) -> typing.Union[FlyteWorkflow, FlyteTask]:
         """
         Use this method to register a workflow via script mode.
@@ -588,13 +590,16 @@ def register_script(
         :param entity: The workflow to be registered or the task to be registered
         :param default_launch_plan: This should be true if a default launch plan should be created for the workflow
         :param options: Additional execution options that can be configured for the default launchplan
+        :param source_path: The root of the project path
+        :param module_name: the name of the module
         :return:
         """
         if image_config is None:
             image_config = ImageConfig.auto_default_image()
 
         upload_location, md5_bytes = fast_register_single_script(
-            entity,
+            source_path,
+            module_name,
             functools.partial(
                 self.client.get_upload_signed_url,
                 project=project or self.default_project,

flytekit/tools/script_mode.py

@@ -1,5 +1,6 @@
 import gzip
 import hashlib
+import importlib
 import os
 import shutil
 import tarfile
@@ -10,8 +11,7 @@
 from flyteidl.service import dataproxy_pb2 as _data_proxy_pb2
 
 from flytekit.core import context_manager
-from flytekit.core.tracker import extract_task_module
-from flytekit.core.workflow import WorkflowBase
+from flytekit.core.tracker import get_full_module_path
 
 
 def compress_single_script(source_path: str, destination: str, full_module_name: str):
@@ -97,16 +97,14 @@ def tar_strip_file_attributes(tar_info: tarfile.TarInfo) -> tarfile.TarInfo:
 
 
 def fast_register_single_script(
-    wf_entity: WorkflowBase, create_upload_location_fn: typing.Callable
+    source_path: str, module_name: str, create_upload_location_fn: typing.Callable
 ) -> (_data_proxy_pb2.CreateUploadLocationResponse, bytes):
-    _, mod_name, _, script_full_path = extract_task_module(wf_entity)
-    # Find project root by moving up the folder hierarchy until you cannot find a __init__.py file.
-    source_path = _find_project_root(script_full_path)
 
     # Open a temp directory and dump the contents of the digest.
     with tempfile.TemporaryDirectory() as tmp_dir:
         archive_fname = os.path.join(tmp_dir, "script_mode.tar.gz")
-        compress_single_script(source_path, archive_fname, mod_name)
+        mod = importlib.import_module(module_name)
+        compress_single_script(source_path, archive_fname, get_full_module_path(mod, mod.__name__))
 
         flyte_ctx = context_manager.FlyteContextManager.current_context()
         md5, _ = hash_file(archive_fname)

tests/flytekit/unit/cli/pyflyte/imperative_wf.py

@@ -0,0 +1,39 @@
+import typing
+
+from flytekit import Workflow, task
+
+
+@task
+def t1(a: str) -> str:
+    return a + " world"
+
+
+@task
+def t2():
+    print("side effect")
+
+
+@task
+def t3(a: typing.List[str]) -> str:
+    return ",".join(a)
+
+
+wf = Workflow(name="my.imperative.workflow.example")
+wf.add_workflow_input("in1", str)
+node_t1 = wf.add_entity(t1, a=wf.inputs["in1"])
+wf.add_workflow_output("output_from_t1", node_t1.outputs["o0"])
+wf.add_entity(t2)
+
+wf_in2 = wf.add_workflow_input("in2", str)
+node_t3 = wf.add_entity(t3, a=[wf.inputs["in1"], wf_in2])
+
+wf.add_workflow_output(
+    "output_list",
+    [node_t1.outputs["o0"], node_t3.outputs["o0"]],
+    python_type=typing.List[str],
+)
+
+
+if __name__ == "__main__":
+    print(wf)
+    print(wf(in1="hello", in2="foo"))

tests/flytekit/unit/cli/pyflyte/test_run.py

@@ -19,6 +19,7 @@
 from flytekit.core.task import task
 
 WORKFLOW_FILE = os.path.join(os.path.dirname(os.path.realpath(__file__)), "workflow.py")
+IMPERATIVE_WORKFLOW_FILE = os.path.join(os.path.dirname(os.path.realpath(__file__)), "imperative_wf.py")
 DIR_NAME = os.path.dirname(os.path.realpath(__file__))
 
 
@@ -30,6 +31,16 @@ def test_pyflyte_run_wf():
     assert result.exit_code == 0
 
 
+def test_imperative_wf():
+    runner = CliRunner()
+    result = runner.invoke(
+        pyflyte.main,
+        ["run", IMPERATIVE_WORKFLOW_FILE, "wf", "--in1", "hello", "--in2", "world"],
+        catch_exceptions=False,
+    )
+    assert result.exit_code == 0
+
+
 def test_pyflyte_run_cli():
     runner = CliRunner()
     result = runner.invoke(