[mod] pylint all files with one profile / drop PYLINT_SEARXNG_DISABLE_OPTION

In the past, some files were tested with the standard profile, others with a
profile in which most of the messages were switched off ... some files were not
checked at all.

- ``PYLINT_SEARXNG_DISABLE_OPTION`` has been abolished
- the distinction ``# lint: pylint`` is no longer necessary
- the pylint tasks have been reduced from three to two

  1. ./searx/engines -> lint engines with additional builtins
  2. ./searx ./searxng_extra ./tests -> lint all other python files

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>

8 files changed, 26 insertions, 51 deletions

diff --git a/searx/plugins/__init__.py b/searx/plugins/__init__.py
index 41dd1a0ef..c3aad5f32 100644
--- a/searx/plugins/__init__.py
+++ b/searx/plugins/__init__.py
@@ -1,5 +1,4 @@
 # SPDX-License-Identifier: AGPL-3.0-or-later
-# lint: pylint
 # pylint: disable=missing-module-docstring, missing-class-docstring
 
 import sys
diff --git a/searx/plugins/ahmia_filter.py b/searx/plugins/ahmia_filter.py
index 326da9ca1..bbf137103 100644
--- a/searx/plugins/ahmia_filter.py
+++ b/searx/plugins/ahmia_filter.py
@@ -1,6 +1,5 @@
-'''
- SPDX-License-Identifier: AGPL-3.0-or-later
-'''
+# SPDX-License-Identifier: AGPL-3.0-or-later
+# pylint: disable=missing-module-docstring
 
 from hashlib import md5
 from searx.data import ahmia_blacklist_loader
@@ -13,14 +12,14 @@ preference_section = 'onions'
 ahmia_blacklist = None
 
 
-def on_result(request, search, result):
+def on_result(_request, _search, result):
     if not result.get('is_onion') or not result.get('parsed_url'):
         return True
     result_hash = md5(result['parsed_url'].hostname.encode()).hexdigest()
     return result_hash not in ahmia_blacklist
 
 
-def init(app, settings):
+def init(_app, settings):
     global ahmia_blacklist  # pylint: disable=global-statement
     if not settings['outgoing']['using_tor_proxy']:
         # disable the plugin
diff --git a/searx/plugins/hash_plugin.py b/searx/plugins/hash_plugin.py
index edb91dd8e..c27e2a432 100644
--- a/searx/plugins/hash_plugin.py
+++ b/searx/plugins/hash_plugin.py
@@ -1,25 +1,11 @@
-'''
-searx is free software: you can redistribute it and/or modify
-it under the terms of the GNU Affero General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
+# SPDX-License-Identifier: AGPL-3.0-or-later
+# pylint: disable=missing-module-docstring
 
-searx is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU Affero General Public License for more details.
-
-You should have received a copy of the GNU Affero General Public License
-along with searx. If not, see < http://www.gnu.org/licenses/ >.
-
-(C) 2015 by Adam Tauber, <asciimoo@gmail.com>
-(C) 2018, 2020 by Vaclav Zouzalik
-'''
-
-from flask_babel import gettext
 import hashlib
 import re
 
+from flask_babel import gettext
+
 name = "Hash plugin"
 description = gettext("Converts strings to different hash digests.")
 default_on = True
@@ -30,7 +16,7 @@ query_examples = 'sha512 The quick brown fox jumps over the lazy dog'
 parser_re = re.compile('(md5|sha1|sha224|sha256|sha384|sha512) (.*)', re.I)
 
 
-def post_search(request, search):
+def post_search(_request, search):
     # process only on first page
     if search.search_query.pageno > 1:
         return True
@@ -40,7 +26,7 @@ def post_search(request, search):
         return True
 
     function, string = m.groups()
-    if string.strip().__len__() == 0:
+    if not string.strip():
         # end if the string is empty
         return True
 
diff --git a/searx/plugins/hostname_replace.py b/searx/plugins/hostname_replace.py
index 5a1df6921..1b3f8609c 100644
--- a/searx/plugins/hostname_replace.py
+++ b/searx/plugins/hostname_replace.py
@@ -1,10 +1,13 @@
 # SPDX-License-Identifier: AGPL-3.0-or-later
+# pylint: disable=missing-module-docstring
 
 import re
 from urllib.parse import urlunparse, urlparse
+
+from flask_babel import gettext
+
 from searx import settings
 from searx.plugins import logger
-from flask_babel import gettext
 
 name = gettext('Hostname replace')
 description = gettext('Rewrite result hostnames or remove results based on the hostname')
@@ -20,7 +23,7 @@ parsed = 'parsed_url'
 _url_fields = ['iframe_src', 'audio_src']
 
 
-def on_result(request, search, result):
+def on_result(_request, _search, result):
 
     for pattern, replacement in replacements.items():
 
diff --git a/searx/plugins/oa_doi_rewrite.py b/searx/plugins/oa_doi_rewrite.py
index f0e07735d..6a214282c 100644
--- a/searx/plugins/oa_doi_rewrite.py
+++ b/searx/plugins/oa_doi_rewrite.py
@@ -1,9 +1,12 @@
+# SPDX-License-Identifier: AGPL-3.0-or-later
+# pylint: disable=missing-module-docstring
+
+import re
 from urllib.parse import urlparse, parse_qsl
+
 from flask_babel import gettext
-import re
 from searx import settings
 
-
 regex = re.compile(r'10\.\d{4,9}/[^\s]+')
 
 name = gettext('Open Access DOI rewrite')
@@ -31,7 +34,7 @@ def get_doi_resolver(preferences):
     return doi_resolvers[selected_resolver]
 
 
-def on_result(request, search, result):
+def on_result(request, _search, result):
     if 'parsed_url' not in result:
         return True
 
diff --git a/searx/plugins/self_info.py b/searx/plugins/self_info.py
index 8079ee0d4..75a2a76c9 100644
--- a/searx/plugins/self_info.py
+++ b/searx/plugins/self_info.py
@@ -1,5 +1,4 @@
 # SPDX-License-Identifier: AGPL-3.0-or-later
-# lint: pylint
 # pylint: disable=missing-module-docstring,invalid-name
 
 import re
diff --git a/searx/plugins/tor_check.py b/searx/plugins/tor_check.py
index 831c90ce5..3816d8ece 100644
--- a/searx/plugins/tor_check.py
+++ b/searx/plugins/tor_check.py
@@ -1,5 +1,4 @@
 # SPDX-License-Identifier: AGPL-3.0-or-later
-# lint: pylint
 """A plugin to check if the ip address of the request is a Tor exit-node if the
 user searches for ``tor-check``.  It fetches the tor exit node list from
 https://check.torproject.org/exit-addresses and parses all the IPs into a list,
diff --git a/searx/plugins/tracker_url_remover.py b/searx/plugins/tracker_url_remover.py
index 42c58e524..2961cd026 100644
--- a/searx/plugins/tracker_url_remover.py
+++ b/searx/plugins/tracker_url_remover.py
@@ -1,24 +1,11 @@
-'''
-searx is free software: you can redistribute it and/or modify
-it under the terms of the GNU Affero General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
+# SPDX-License-Identifier: AGPL-3.0-or-later
+# pylint: disable=missing-module-docstring
 
-searx is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU Affero General Public License for more details.
-
-You should have received a copy of the GNU Affero General Public License
-along with searx. If not, see < http://www.gnu.org/licenses/ >.
-
-(C) 2015 by Adam Tauber, <asciimoo@gmail.com>
-'''
-
-from flask_babel import gettext
 import re
 from urllib.parse import urlunparse, parse_qsl, urlencode
 
+from flask_babel import gettext
+
 regexes = {
     re.compile(r'utm_[^&]+'),
     re.compile(r'(wkey|wemail)[^&]*'),
@@ -32,7 +19,7 @@ default_on = True
 preference_section = 'privacy'
 
 
-def on_result(request, search, result):
+def on_result(_request, _search, result):
     if 'parsed_url' not in result:
         return True