chore: add deprecation warnings on use of deprecated package import

xblockutils/__init__.py

@@ -2,4 +2,4 @@
 Useful classes and functionality for building and testing XBlocks
 """
 
-__version__ = '3.4.1'
+__version__ = '4.0.0'

xblockutils/deprecation/warn.py

@@ -0,0 +1,34 @@
+"""
+Utilities for warning about the use of deprecated package
+
+See https://github.com/openedx/xblock-utils/issues/197 for details.
+"""
+
+import warnings
+
+
+class DeprecatedPackageWarning(DeprecationWarning):
+    """
+    A warning that a deprecated package is being used.
+    """
+
+    def __init__(self, old_import, new_import):
+        super().__init__()
+        self.old_import = old_import
+        self.new_import = new_import
+
+    def __str__(self):
+        return (
+            "Please use import {self.new_import} instead of {self.old_import} as "
+            "'xblock-utils' package has been deprecated and migrated within 'xblock' package. "
+        ).format(self=self)
+
+
+def warn_deprecated_package(old_import, new_import):
+    """
+    Warn that a package has been deprecated
+    """
+    warnings.warn(
+        DeprecatedPackageWarning(old_import, new_import),
+        stacklevel=3,  # Should surface the line that is doing the importing.
+    )

xblockutils/helpers.py

@@ -2,6 +2,13 @@
 Useful helper methods
 """
 
+from xblockutils.deprecation.warn import warn_deprecated_package
+
+warn_deprecated_package(
+    'xblockutils.helpers',
+    'xblock.utils.helpers'
+)
+
 
 def child_isinstance(block, child_id, block_class_or_mixin):
     """

xblockutils/publish_event.py

@@ -22,6 +22,13 @@
 
 from xblock.core import XBlock
 
+from xblockutils.deprecation.warn import warn_deprecated_package
+
+warn_deprecated_package(
+    'xblockutils.publish_event',
+    'xblock.utils.publish_event'
+)
+
 
 class PublishEventMixin:
     """

xblockutils/resources.py

@@ -25,12 +25,17 @@
 import warnings
 
 import pkg_resources
-
 from django.template import Context, Template, Engine
 from django.template.backends.django import get_installed_libraries
-
-from mako.template import Template as MakoTemplate
 from mako.lookup import TemplateLookup as MakoTemplateLookup
+from mako.template import Template as MakoTemplate
+
+from xblockutils.deprecation.warn import warn_deprecated_package
+
+warn_deprecated_package(
+    'xblockutils.resources',
+    'xblock.utils.resources'
+)
 
 
 class ResourceLoader:

xblockutils/settings.py

@@ -5,8 +5,14 @@
 This module contains a mixins that allows third party XBlocks to access Settings Service in edX LMS.
 """
 
+from xblockutils.deprecation.warn import warn_deprecated_package
 from xblockutils.resources import ResourceLoader
 
+warn_deprecated_package(
+    'xblockutils.settings',
+    'xblock.utils.settings'
+)
+
 
 class XBlockWithSettingsMixin:
     """

xblockutils/studio_editable.py

@@ -11,12 +11,12 @@
 
 
 import logging
-import simplejson as json
 
+import simplejson as json
+from web_fragments.fragment import Fragment
 from xblock.core import XBlock, XBlockMixin
-from xblock.fields import Scope, JSONField, List, Integer, Float, Boolean, String, DateTime
 from xblock.exceptions import JsonHandlerError, NoSuchViewError
-from web_fragments.fragment import Fragment
+from xblock.fields import Scope, JSONField, List, Integer, Float, Boolean, String, DateTime
 from xblock.validation import Validation
 
 from xblockutils.resources import ResourceLoader
@@ -29,6 +29,14 @@
 # Classes ###########################################################
 
 
+from xblockutils.deprecation.warn import warn_deprecated_package
+
+warn_deprecated_package(
+    'xblockutils.studio_editable',
+    'xblock.utils.studio_editable'
+)
+
+
 class FutureFields:
     """
     A helper class whose attribute values come from the specified dictionary or fallback object.

xblockutils/templatetags/i18n.py

@@ -10,6 +10,12 @@
 from django.templatetags import i18n
 from django.utils.translation import get_language, trans_real
 
+from xblockutils.deprecation.warn import warn_deprecated_package
+
+warn_deprecated_package(
+    'xblockutils.templatetags.i18n',
+    'xblock.utils.templatetags.i18n'
+)
 
 register = Library()