Use pre-commit instead of Coala. Linting.

.coafile

@@ -1,4 +0,0 @@
-[python]
-bears = PyUnusedCodeBear,PySafetyBear,PyFlakesBear,PEP8Bear,BanditBear,PyCommentedCodeBear,VultureBear,InvalidLinkBear,PyImportSortBear
-files = *.py
-use_spaces = true

.pre-commit-config.yaml

@@ -0,0 +1,23 @@
+---
+# See https://pre-commit.com for more information
+# See https://pre-commit.com/hooks.html for more hooks
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v3.3.0
+    hooks:
+      - id: trailing-whitespace
+      - id: end-of-file-fixer
+      - id: check-added-large-files
+  - repo: https://github.com/psf/black
+    rev: 20.8b1
+    hooks:
+      - id: black
+  - repo: https://gitlab.com/pycqa/flake8
+    rev: 3.8.4
+    hooks:
+      - id: flake8
+        args: ['--ignore=E501,E203']
+  - repo: https://github.com/asottile/reorder_python_imports
+    rev: v2.3.6
+    hooks:
+      - id: reorder-python-imports

gnome-pass-search-provider.py

@@ -14,27 +14,26 @@
 # You should have received a copy of the GNU General Public License
 # along with gnome-pass-search-provider. If not, see
 # <http://www.gnu.org/licenses/>.
-
 # Copyright (C) 2017 Jonathan Lestrelin
 # Author: Jonathan Lestrelin <jonathan.lestrelin@gmail.com>
-
 # This project was based on gnome-shell-search-github-repositories
 # Copyright (C) 2012 Red Hat, Inc.
 # Author: Ralph Bean <rbean@redhat.com>
 # which itself was based on fedmsg-notify
 # Copyright (C) 2012 Red Hat, Inc.
 # Author: Luke Macken <lmacken@redhat.com>
-
-import dbus
-import dbus.service
 import re
 import subprocess
+from os import getenv
+from os import walk
+from os.path import expanduser
+from os.path import join as path_join
 
+import dbus.service
 from dbus.mainloop.glib import DBusGMainLoop
-from fuzzywuzzy import process, fuzz
+from fuzzywuzzy import fuzz
+from fuzzywuzzy import process
 from gi.repository import GLib
-from os import getenv, walk
-from os.path import expanduser, join as path_join
 
 # Convenience shorthand for declaring dbus interface methods.
 # s.b.n. -> search_bus_name
@@ -165,7 +164,7 @@ class SearchPassService(dbus.service.Object):
     def send_password_to_native_clipboard(self, base_args, name, field=None):
         if field is not None:
             self.notify(
-                f"Cannot copy field values.",
+                "Cannot copy field values.",
                 body="This feature requires GPaste.",
                 error=True,
             )