remove poetry core compat code (MAIN_GROUP)

src/poetry/console/commands/add.py

@@ -7,18 +7,12 @@ from typing import cast
 
 from cleo.helpers import argument
 from cleo.helpers import option
+from poetry.core.packages.dependency_group import MAIN_GROUP
 from tomlkit.toml_document import TOMLDocument
 
-from poetry.utils.helpers import canonicalize_name
-
-
-try:
-    from poetry.core.packages.dependency_group import MAIN_GROUP
-except ImportError:
-    MAIN_GROUP = "default"
-
 from poetry.console.commands.init import InitCommand
 from poetry.console.commands.installer_command import InstallerCommand
+from poetry.utils.helpers import canonicalize_name
 
 
 class AddCommand(InstallerCommand, InitCommand):

src/poetry/console/commands/group_command.py

@@ -3,12 +3,7 @@ from __future__ import annotations
 from typing import TYPE_CHECKING
 
 from cleo.helpers import option
-
-
-try:
-    from poetry.core.packages.dependency_group import MAIN_GROUP
-except ImportError:
-    MAIN_GROUP = "default"
+from poetry.core.packages.dependency_group import MAIN_GROUP
 
 from poetry.console.commands.env_command import EnvCommand
 

src/poetry/console/commands/remove.py

@@ -4,17 +4,11 @@ from typing import Any
 
 from cleo.helpers import argument
 from cleo.helpers import option
+from poetry.core.packages.dependency_group import MAIN_GROUP
 from tomlkit.toml_document import TOMLDocument
 
-from poetry.utils.helpers import canonicalize_name
-
-
-try:
-    from poetry.core.packages.dependency_group import MAIN_GROUP
-except ImportError:
-    MAIN_GROUP = "default"
-
 from poetry.console.commands.installer_command import InstallerCommand
+from poetry.utils.helpers import canonicalize_name
 
 
 class RemoveCommand(InstallerCommand):

src/poetry/console/commands/self/install.py

 from __future__ import annotations
 
-
-try:
-    from poetry.core.packages.dependency_group import MAIN_GROUP
-except ImportError:
-    MAIN_GROUP = "default"
+from poetry.core.packages.dependency_group import MAIN_GROUP
 
 from poetry.console.commands.install import InstallCommand
 from poetry.console.commands.self.self_command import SelfCommand

src/poetry/factory.py

@@ -11,6 +11,7 @@ from typing import cast
 
 from cleo.io.null_io import NullIO
 from poetry.core.factory import Factory as BaseFactory
+from poetry.core.packages.dependency_group import MAIN_GROUP
 from poetry.core.packages.project_package import ProjectPackage
 from poetry.core.toml.file import TOMLFile
 from tomlkit.toml_document import TOMLDocument
@@ -22,12 +23,6 @@ from poetry.plugins.plugin_manager import PluginManager
 from poetry.poetry import Poetry
 
 
-try:
-    from poetry.core.packages.dependency_group import MAIN_GROUP
-except ImportError:
-    MAIN_GROUP = "default"
-
-
 if TYPE_CHECKING:
     from pathlib import Path
 

src/poetry/puzzle/solver.py

@@ -9,11 +9,7 @@ from typing import FrozenSet
 from typing import Tuple
 from typing import TypeVar
 
-
-try:
-    from poetry.core.packages.dependency_group import MAIN_GROUP
-except ImportError:
-    MAIN_GROUP = "default"
+from poetry.core.packages.dependency_group import MAIN_GROUP
 
 from poetry.mixology import resolve_version
 from poetry.mixology.failure import SolveFailure

tests/console/commands/test_install.py

@@ -5,13 +5,9 @@ from typing import TYPE_CHECKING
 import pytest
 
 from poetry.core.masonry.utils.module import ModuleOrPackageNotFound
+from poetry.core.packages.dependency_group import MAIN_GROUP
 
 
-try:
-    from poetry.core.packages.dependency_group import MAIN_GROUP
-except ImportError:
-    MAIN_GROUP = "default"
-
 if TYPE_CHECKING:
     from cleo.testers.command_tester import CommandTester
     from pytest_mock import MockerFixture

tests/console/commands/test_show.py

@@ -4,14 +4,9 @@ from typing import TYPE_CHECKING
 
 import pytest
 
+from poetry.core.packages.dependency_group import MAIN_GROUP
 from poetry.core.packages.dependency_group import DependencyGroup
 
-
-try:
-    from poetry.core.packages.dependency_group import MAIN_GROUP
-except ImportError:
-    MAIN_GROUP = "default"
-
 from poetry.factory import Factory
 from tests.helpers import get_package
 

tests/installation/test_installer.py

@@ -15,17 +15,12 @@ from cleo.io.null_io import NullIO
 from cleo.io.outputs.buffered_output import BufferedOutput
 from cleo.io.outputs.output import Verbosity
 from deepdiff import DeepDiff
+from poetry.core.packages.dependency_group import MAIN_GROUP
 from poetry.core.packages.dependency_group import DependencyGroup
 from poetry.core.packages.package import Package
 from poetry.core.packages.project_package import ProjectPackage
 from poetry.core.toml.file import TOMLFile
 
-
-try:
-    from poetry.core.packages.dependency_group import MAIN_GROUP
-except ImportError:
-    MAIN_GROUP = "default"
-
 from poetry.factory import Factory
 from poetry.installation import Installer as BaseInstaller
 from poetry.installation.executor import Executor as BaseExecutor