Modernize some Python constructs (#876)

* Update __future__ import, remove __metaclass__ assignment.

* Removing obsolete encoding comment.

* Remove unneccessary object inheritance.

plugins/filter/gpg_fingerprint.py

@@ -1,13 +1,10 @@
-# -*- coding: utf-8 -*-
 # Copyright (c) 2023, Felix Fontein <felix@fontein.de>
 # GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
 # SPDX-License-Identifier: GPL-3.0-or-later
 
-from __future__ import absolute_import, division, print_function
+from __future__ import annotations
 
 
-__metaclass__ = type
-
 DOCUMENTATION = r"""
 name: gpg_fingerprint
 short_description: Retrieve a GPG fingerprint from a GPG public or private key
@@ -68,7 +65,7 @@ def gpg_fingerprint(input):
         raise AnsibleFilterError(to_native(exc))
 
 
-class FilterModule(object):
+class FilterModule:
     """Ansible jinja2 filters"""
 
     def filters(self):

plugins/filter/openssl_csr_info.py

@@ -1,14 +1,10 @@
-# -*- coding: utf-8 -*-
-
 # Copyright (c) 2022, Felix Fontein <felix@fontein.de>
 # GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
 # SPDX-License-Identifier: GPL-3.0-or-later
 
-from __future__ import absolute_import, division, print_function
+from __future__ import annotations
 
 
-__metaclass__ = type
-
 DOCUMENTATION = r"""
 name: openssl_csr_info
 short_description: Retrieve information from OpenSSL Certificate Signing Requests (CSR)
@@ -320,7 +316,7 @@ def openssl_csr_info_filter(data, name_encoding="ignore"):
         raise AnsibleFilterError(to_native(exc))
 
 
-class FilterModule(object):
+class FilterModule:
     """Ansible jinja2 filters"""
 
     def filters(self):

plugins/filter/openssl_privatekey_info.py

@@ -1,14 +1,10 @@
-# -*- coding: utf-8 -*-
-
 # Copyright (c) 2022, Felix Fontein <felix@fontein.de>
 # GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
 # SPDX-License-Identifier: GPL-3.0-or-later
 
-from __future__ import absolute_import, division, print_function
+from __future__ import annotations
 
 
-__metaclass__ = type
-
 DOCUMENTATION = r"""
 name: openssl_privatekey_info
 short_description: Retrieve information from OpenSSL private keys
@@ -202,7 +198,7 @@ def openssl_privatekey_info_filter(
         raise AnsibleFilterError(to_native(exc))
 
 
-class FilterModule(object):
+class FilterModule:
     """Ansible jinja2 filters"""
 
     def filters(self):

plugins/filter/openssl_publickey_info.py

@@ -1,14 +1,10 @@
-# -*- coding: utf-8 -*-
-
 # Copyright (c) 2022, Felix Fontein <felix@fontein.de>
 # GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
 # SPDX-License-Identifier: GPL-3.0-or-later
 
-from __future__ import absolute_import, division, print_function
+from __future__ import annotations
 
 
-__metaclass__ = type
-
 DOCUMENTATION = r"""
 name: openssl_publickey_info
 short_description: Retrieve information from OpenSSL public keys in PEM format
@@ -159,7 +155,7 @@ def openssl_publickey_info_filter(data):
         raise AnsibleFilterError(to_native(exc))
 
 
-class FilterModule(object):
+class FilterModule:
     """Ansible jinja2 filters"""
 
     def filters(self):

plugins/filter/parse_serial.py

@@ -1,13 +1,10 @@
-# -*- coding: utf-8 -*-
 # Copyright (c) 2024, Felix Fontein <felix@fontein.de>
 # GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
 # SPDX-License-Identifier: GPL-3.0-or-later
 
-from __future__ import absolute_import, division, print_function
+from __future__ import annotations
 
 
-__metaclass__ = type
-
 DOCUMENTATION = r"""
 name: parse_serial
 short_description: Convert a serial number as a colon-separated list of hex numbers to an integer
@@ -63,7 +60,7 @@ def parse_serial_filter(input):
         raise AnsibleFilterError(to_native(exc))
 
 
-class FilterModule(object):
+class FilterModule:
     """Ansible jinja2 filters"""
 
     def filters(self):

plugins/filter/split_pem.py

@@ -1,14 +1,10 @@
-# -*- coding: utf-8 -*-
-
 # Copyright (c) 2022, Felix Fontein <felix@fontein.de>
 # GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
 # SPDX-License-Identifier: GPL-3.0-or-later
 
-from __future__ import absolute_import, division, print_function
+from __future__ import annotations
 
 
-__metaclass__ = type
-
 DOCUMENTATION = r"""
 name: split_pem
 short_description: Split PEM file contents into multiple objects
@@ -62,7 +58,7 @@ def split_pem_filter(data):
     return split_pem_list(data)
 
 
-class FilterModule(object):
+class FilterModule:
     """Ansible jinja2 filters"""
 
     def filters(self):

plugins/filter/to_serial.py

@@ -1,13 +1,10 @@
-# -*- coding: utf-8 -*-
 # Copyright (c) 2024, Felix Fontein <felix@fontein.de>
 # GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
 # SPDX-License-Identifier: GPL-3.0-or-later
 
-from __future__ import absolute_import, division, print_function
+from __future__ import annotations
 
 
-__metaclass__ = type
-
 DOCUMENTATION = r"""
 name: to_serial
 short_description: Convert an integer to a colon-separated list of hex numbers
@@ -65,7 +62,7 @@ def to_serial_filter(input):
         raise AnsibleFilterError(to_native(exc))
 
 
-class FilterModule(object):
+class FilterModule:
     """Ansible jinja2 filters"""
 
     def filters(self):

plugins/filter/x509_certificate_info.py

@@ -1,14 +1,10 @@
-# -*- coding: utf-8 -*-
-
 # Copyright (c) 2022, Felix Fontein <felix@fontein.de>
 # GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
 # SPDX-License-Identifier: GPL-3.0-or-later
 
-from __future__ import absolute_import, division, print_function
+from __future__ import annotations
 
 
-__metaclass__ = type
-
 DOCUMENTATION = r"""
 name: x509_certificate_info
 short_description: Retrieve information from X.509 certificates in PEM format
@@ -352,7 +348,7 @@ def x509_certificate_info_filter(data, name_encoding="ignore"):
         raise AnsibleFilterError(to_native(exc))
 
 
-class FilterModule(object):
+class FilterModule:
     """Ansible jinja2 filters"""
 
     def filters(self):

plugins/filter/x509_crl_info.py

@@ -1,14 +1,10 @@
-# -*- coding: utf-8 -*-
-
 # Copyright (c) 2022, Felix Fontein <felix@fontein.de>
 # GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
 # SPDX-License-Identifier: GPL-3.0-or-later
 
-from __future__ import absolute_import, division, print_function
+from __future__ import annotations
 
 
-__metaclass__ = type
-
 DOCUMENTATION = r"""
 name: x509_crl_info
 short_description: Retrieve information from X.509 CRLs in PEM format
@@ -217,7 +213,7 @@ def x509_crl_info_filter(data, name_encoding="ignore", list_revoked_certificates
         raise AnsibleFilterError(to_native(exc))
 
 
-class FilterModule(object):
+class FilterModule:
     """Ansible jinja2 filters"""
 
     def filters(self):