Merge branch 'master' into patch-5

.github/workflows/pythonbuild.yml

@@ -25,6 +25,8 @@ jobs:
             tox-env: py310-core
           - python-version: "3.11"
             tox-env: py311-core
+          - python-version: "3.12"
+            tox-env: py312-core
 
     steps:
       - uses: actions/checkout@v2
@@ -92,6 +94,8 @@ jobs:
             tox-env: py310-postgres
           - python-version: "3.11"
             tox-env: py311-postgres
+          - python-version: "3.12"
+            tox-env: py312-postgres
 
     steps:
       - uses: actions/checkout@v2
@@ -145,6 +149,8 @@ jobs:
             tox-env: py310-aws
           - python-version: "3.11"
             tox-env: py311-aws
+          - python-version: "3.12"
+            tox-env: py312-aws
 
           - python-version: "3.6"
             tox-env: py36-unixsocket
@@ -164,6 +170,9 @@ jobs:
           - python-version: "3.11"
             tox-env: py311-unixsocket
             OVERRIDE_SKIP_CI_TESTS: True
+          - python-version: "3.12"
+            tox-env: py312-unixsocket
+            OVERRIDE_SKIP_CI_TESTS: True
 
           - python-version: "3.6"
             tox-env: py36-apache
@@ -177,6 +186,8 @@ jobs:
             tox-env: py310-apache
           - python-version: "3.11"
             tox-env: py311-apache
+          - python-version: "3.12"
+            tox-env: py312-apache
 
           - python-version: "3.6"
             tox-env: py36-azureblob
@@ -190,6 +201,8 @@ jobs:
             tox-env: py310-azureblob
           - python-version: "3.11"
             tox-env: py311-azureblob
+          - python-version: "3.12"
+            tox-env: py312-azureblob
 
 
           - python-version: 3.9

README.rst

@@ -18,7 +18,7 @@
     :target: https://luigi.readthedocs.io/en/stable/?badge=stable
     :alt: Documentation Status
 
-Luigi is a Python (3.6, 3.7, 3.8, 3.9, 3.10, 3.11 tested) package that helps you build complex
+Luigi is a Python (3.6, 3.7, 3.8, 3.9, 3.10, 3.11, 3.12 tested) package that helps you build complex
 pipelines of batch jobs. It handles dependency resolution, workflow management,
 visualization, handling failures, command line integration, and much more.
 

doc/configuration.rst

@@ -432,13 +432,13 @@ traceback_max_length
   Maximum length for traceback included in error email. Default is 5000.
 
 
-[batch_notifier]
+[batch_email]
 ----------------
 
 Parameters controlling the contents of batch notifications sent from the
 scheduler
 
-email_interval_minutes
+email_interval
   Number of minutes between e-mail sends. Making this larger results in
   fewer, bigger e-mails.
   Defaults to 60.

luigi/__meta__.py

@@ -7,5 +7,5 @@
 __author__ = 'The Luigi Authors'
 __contact__ = 'https://github.com/spotify/luigi'
 __license__ = 'Apache License 2.0'
-__version__ = '3.5.0'
+__version__ = '3.5.1'
 __status__ = 'Production'

luigi/contrib/azureblob.py

@@ -20,7 +20,7 @@
 import logging
 import datetime
 
-from azure.storage.blob import blockblobservice
+from azure.storage.blob import BlobServiceClient
 
 from luigi.format import get_default_format
 from luigi.target import FileAlreadyExists, FileSystem, AtomicLocalFile, FileSystemTarget
@@ -62,60 +62,101 @@ def __init__(self, account_name=None, account_key=None, sas_token=None, **kwargs
             * `custom_domain` - The custom domain to use. This can be set in the Azure Portal. For example, ‘www.mydomain.com’.
             * `token_credential` - A token credential used to authenticate HTTPS requests. The token value should be updated before its expiration.
         """
-        self.options = {"account_name": account_name, "account_key": account_key, "sas_token": sas_token}
+        if kwargs.get("custom_domain"):
+            account_url = "{protocol}://{custom_domain}/{account_name}".format(protocol=kwargs.get("protocol", "https"),
+                                                                               custom_domain=kwargs.get("custom_domain"),
+                                                                               account_name=account_name)
+        else:
+            account_url = "{protocol}://{account_name}.blob.{endpoint_suffix}".format(protocol=kwargs.get("protocol",
+                                                                                                          "https"),
+                                                                                      account_name=account_name,
+                                                                                      endpoint_suffix=kwargs.get(
+                                                                                          "endpoint_suffix",
+                                                                                          "core.windows.net"))
+
+        self.options = {
+            "account_name": account_name,
+            "account_key": account_key,
+            "account_url": account_url,
+            "sas_token": sas_token}
         self.kwargs = kwargs
 
     @property
     def connection(self):
-        return blockblobservice.BlockBlobService(account_name=self.options.get("account_name"),
-                                                 account_key=self.options.get("account_key"),
-                                                 sas_token=self.options.get("sas_token"),
-                                                 protocol=self.kwargs.get("protocol"),
-                                                 connection_string=self.kwargs.get("connection_string"),
-                                                 endpoint_suffix=self.kwargs.get("endpoint_suffix"),
-                                                 custom_domain=self.kwargs.get("custom_domain"),
-                                                 is_emulated=self.kwargs.get("is_emulated") or False)
+        if self.kwargs.get("connection_string"):
+            return BlobServiceClient.from_connection_string(conn_str=self.kwargs.get("connection_string"),
+                                                            **self.kwargs)
+        else:
+            return BlobServiceClient(account_url=self.options.get("account_url"),
+                                     credential=self.options.get("account_key") or self.options.get("sas_token"),
+                                     **self.kwargs)
+
+    def container_client(self, container_name):
+        return self.connection.get_container_client(container_name)
+
+    def blob_client(self, container_name, blob_name):
+        container_client = self.container_client(container_name)
+        return container_client.get_blob_client(blob_name)
 
     def upload(self, tmp_path, container, blob, **kwargs):
         logging.debug("Uploading file '{tmp_path}' to container '{container}' and blob '{blob}'".format(
             tmp_path=tmp_path, container=container, blob=blob))
         self.create_container(container)
-        lease_id = self.connection.acquire_blob_lease(container, blob)\
-            if self.exists("{container}/{blob}".format(container=container, blob=blob)) else None
+        lease = None
+        blob_client = self.blob_client(container, blob)
+        if blob_client.exists():
+            lease = blob_client.acquire_lease()
         try:
-            self.connection.create_blob_from_path(container, blob, tmp_path, lease_id=lease_id, progress_callback=kwargs.get("progress_callback"))
+            with open(tmp_path, 'rb') as data:
+                blob_client.upload_blob(data,
+                                        overwrite=True,
+                                        lease=lease,
+                                        progress_hook=kwargs.get("progress_callback"))
         finally:
-            if lease_id is not None:
-                self.connection.release_blob_lease(container, blob, lease_id)
+            if lease is not None:
+                lease.release()
 
     def download_as_bytes(self, container, blob, bytes_to_read=None):
-        start_range, end_range = (0, bytes_to_read-1) if bytes_to_read is not None else (None, None)
         logging.debug("Downloading from container '{container}' and blob '{blob}' as bytes".format(
             container=container, blob=blob))
-        return self.connection.get_blob_to_bytes(container, blob, start_range=start_range, end_range=end_range).content
+        blob_client = self.blob_client(container, blob)
+        download_stream = blob_client.download_blob(offset=0, length=bytes_to_read) if bytes_to_read \
+            else blob_client.download_blob()
+        return download_stream.readall()
 
     def download_as_file(self, container, blob, location):
         logging.debug("Downloading from container '{container}' and blob '{blob}' to {location}".format(
             container=container, blob=blob, location=location))
-        return self.connection.get_blob_to_path(container, blob, location)
+        blob_client = self.blob_client(container, blob)
+        with open(location, 'wb') as file:
+            download_stream = blob_client.download_blob()
+            file.write(download_stream.readall())
+        return blob_client.get_blob_properties()
 
     def create_container(self, container_name):
-        return self.connection.create_container(container_name)
+        if not self.exists(container_name):
+            return self.connection.create_container(container_name)
 
     def delete_container(self, container_name):
-        lease_id = self.connection.acquire_container_lease(container_name)
-        self.connection.delete_container(container_name, lease_id=lease_id)
+        container_client = self.container_client(container_name)
+        lease = container_client.acquire_lease()
+        container_client.delete_container(lease=lease)
 
     def exists(self, path):
         container, blob = self.splitfilepath(path)
-        return self.connection.exists(container, blob)
+        if blob is None:
+            return self.container_client(container).exists()
+        else:
+            return self.blob_client(container, blob).exists()
 
     def remove(self, path, recursive=True, skip_trash=True):
-        container, blob = self.splitfilepath(path)
         if not self.exists(path):
             return False
-        lease_id = self.connection.acquire_blob_lease(container, blob)
-        self.connection.delete_blob(container, blob, lease_id=lease_id)
+
+        container, blob = self.splitfilepath(path)
+        blob_client = self.blob_client(container, blob)
+        lease = blob_client.acquire_lease()
+        blob_client.delete_blob(lease=lease)
         return True
 
     def mkdir(self, path, parents=True, raise_if_exists=False):
@@ -148,16 +189,18 @@ def copy(self, path, dest):
                     source_container=source_container, dest_container=dest_container
                 ))
 
-        source_lease_id = self.connection.acquire_blob_lease(source_container, source_blob)
-        destination_lease_id = self.connection.acquire_blob_lease(dest_container, dest_blob) if self.exists(dest) else None
+        source_blob_client = self.blob_client(source_container, source_blob)
+        dest_blob_client = self.blob_client(dest_container, dest_blob)
+        source_lease = source_blob_client.acquire_lease()
+        destination_lease = dest_blob_client.acquire_lease() if self.exists(dest) else None
         try:
-            return self.connection.copy_blob(source_container, dest_blob, self.connection.make_blob_url(
-                source_container, source_blob),
-                destination_lease_id=destination_lease_id, source_lease_id=source_lease_id)
+            return dest_blob_client.start_copy_from_url(source_url=source_blob_client.url,
+                                                        source_lease=source_lease,
+                                                        destination_lease=destination_lease)
         finally:
-            self.connection.release_blob_lease(source_container, source_blob, source_lease_id)
-            if destination_lease_id is not None:
-                self.connection.release_blob_lease(dest_container, dest_blob, destination_lease_id)
+            source_lease.release()
+            if destination_lease is not None:
+                destination_lease.release()
 
     def rename_dont_move(self, path, dest):
         self.move(path, dest)

luigi/contrib/hadoop_jar.py

@@ -20,8 +20,8 @@
 
 import logging
 import os
-import pipes
 import random
+import shlex
 import warnings
 
 import luigi.contrib.hadoop
@@ -110,7 +110,7 @@ def run_job(self, job, tracking_url_callback=None):
                 arglist += ['-o', 'UserKnownHostsFile=/dev/null',
                             '-o', 'StrictHostKeyChecking=no']
             arglist.append('{}@{}'.format(username, host))
-            hadoop_arglist = [pipes.quote(arg) for arg in hadoop_arglist]
+            hadoop_arglist = [shlex.quote(arg) for arg in hadoop_arglist]
             arglist.append(' '.join(hadoop_arglist))
         else:
             if not os.path.exists(job.jar()):

luigi/parameter.py

@@ -309,7 +309,7 @@ def normalize(self, x):
         """
         return x  # default impl
 
-    def next_in_enumeration(self, _value):
+    def next_in_enumeration(self, value):
         """
         If your Parameter type has an enumerable ordering of values. You can
         choose to override this method. This method is used by the
@@ -389,6 +389,9 @@ def _warn_on_wrong_param_type(self, param_name, param_value):
                 OptionalParameterTypeWarning,
             )
 
+    def next_in_enumeration(self, value):
+        return None
+
 
 class OptionalParameter(OptionalParameterMixin, Parameter):
     """Class to parse optional parameters."""

luigi/static/visualiser/js/graph.js

@@ -146,8 +146,8 @@ Graph = (function() {
                 $.each(n.deps, function(i, dep) {
                     if (nodeIndex[dep]) {
                         var next_node = nodes[nodeIndex[dep]]
-                        var depth = (selfDependencies ? depth + 1 : classDepths[next_node.name])
-                        placeNodes(next_node, depth);
+                        var next_depth = (selfDependencies ? depth + 1 : classDepths[next_node.name])
+                        placeNodes(next_node, next_depth);
                     }
                 });
             }

luigi/static/visualiser/js/test/graph_test.js

@@ -2,18 +2,27 @@ module("graph.js");
 
 test("nodeFromTask", function() {
     var task = {
-        deps: ["B","C"],
-        taskId: "A",
-        status: "DONE"
+        deps: ["B1","C1"],
+        taskId: "A1",
+        status: "DONE",
+        name: "A",
+        params: {},
+        priority: 0,
     };
     var expected = {
-        taskId: "A",
+        taskId: "A1",
         status: "DONE",
-        trackingUrl: "#A",
-        deps: ["B","C"],
-        depth: -1
+        trackingUrl: "#A1",
+        deps: ["B1","C1"],
+        depth: -1,
+        name: "A",
+        params: {},
+        priority: 0,
     };
-    deepEqual(Graph.testableMethods.nodeFromTask(task), expected);
+    let graph = {
+        hashBase: "#"
+    }
+    deepEqual(Graph.testableMethods.nodeFromTask.bind(graph)(task), expected);
 });
 
 test("uniqueIndexByProperty", function() {
@@ -70,7 +79,7 @@ test("computeRowsSelfDeps", function () {
     var rowSizes = Graph.testableMethods.computeRows(nodes, nodeIndex)
     equal(A1.depth, 0)
     equal(A2.depth, 1)
-    equal(rowSizes, [1, 1])
+    deepEqual(rowSizes, [1, 1])
 });
 
 test("computeRowsGrouped", function() {
@@ -83,6 +92,8 @@ test("computeRowsGrouped", function() {
     var D2 = {name: "D", taskId: "D2", deps: [], depth: -1}
     var E1 = {name: "E", taskId: "E1", deps: [], depth: -1}
     var E2 = {name: "E", taskId: "E2", deps: [], depth: -1}
+    var nodes = [A0, B0, C1, C2, D0, D1, D2, E1, E2]
+    var nodeIndex = {"A0": 0, "B0": 1, "C1": 2, "C2": 3, "D0": 4, "D1": 5, "D2": 6, "E1": 7, "E2": 8}
     var rowSizes = Graph.testableMethods.computeRows(nodes, nodeIndex)
     equal(A0.depth, 0)
     equal(B0.depth, 1)
@@ -93,7 +104,7 @@ test("computeRowsGrouped", function() {
     equal(D2.depth, 3)
     equal(E1.depth, 4)
     equal(E2.depth, 4)
-    equal(rowSizes, [1, 1, 2, 3, 2])
+    deepEqual(rowSizes, [1, 1, 2, 3, 2])
 });
 
 test("createGraph", function() {

luigi/task.py

@@ -264,6 +264,13 @@ def wrapped(callback):
             return callback
         return wrapped
 
+    @classmethod
+    def remove_event_handler(cls, event, callback):
+        """
+        Function to remove the event handler registered previously by the cls.event_handler decorator.
+        """
+        cls._event_callbacks[cls][event].remove(callback)
+
     def trigger_event(self, event, *args, **kwargs):
         """
         Trigger that calls all of the specified events associated with this class.

luigi/worker.py

@@ -55,7 +55,7 @@
 from luigi.scheduler import DISABLED, DONE, FAILED, PENDING, UNKNOWN, Scheduler, RetryPolicy
 from luigi.scheduler import WORKER_STATE_ACTIVE, WORKER_STATE_DISABLED
 from luigi.target import Target
-from luigi.task import Task, Config, DynamicRequirements
+from luigi.task import Task, Config, DynamicRequirements, flatten
 from luigi.task_register import TaskClassException
 from luigi.task_status import RUNNING
 from luigi.parameter import BoolParameter, FloatParameter, IntParameter, OptionalParameter, Parameter, TimeDeltaParameter
@@ -185,7 +185,7 @@ def run(self):
                 missing = []
                 for dep in self.task.deps():
                     if not self.check_complete(dep):
-                        nonexistent_outputs = [output for output in dep.output() if not output.exists()]
+                        nonexistent_outputs = [output for output in flatten(dep.output()) if not output.exists()]
                         if nonexistent_outputs:
                             missing.append(f'{dep.task_id} ({", ".join(map(str, nonexistent_outputs))})')
                         else: