fix flake8 lints

Author: pietroalbini

homu/main.py

@@ -346,6 +346,7 @@ def start_testing(self, timeout):
         self.set_status('pending')
 
         wm = weakref.WeakMethod(self.timed_out)
+
         def timed_out():
             m = wm()
             if m:
@@ -874,12 +875,12 @@ def create_merge(state, repo_cfg, branch, logger, git_cfg,
         'You may also read'
         ' [*Git Rebasing to Resolve Conflicts* by Drew Blessing](http://blessing.io/git/git-rebase/open-source/2015/08/23/git-rebasing-to-resolve-conflicts.html)' # noqa
         ' for a short tutorial.\n\n'
-        'Please avoid the ["**Resolve conflicts**" button](https://help.github.com/articles/resolving-a-merge-conflict-on-github/) on GitHub.' #noqa
-        ' It uses `git merge` instead of `git rebase` which makes the PR commit'
+        'Please avoid the ["**Resolve conflicts**" button](https://help.github.com/articles/resolving-a-merge-conflict-on-github/) on GitHub.' # noqa
+        ' It uses `git merge` instead of `git rebase` which makes the PR commit' # noqa
         ' history more difficult to read.\n\n'
         'Sometimes step 4 will complete without asking for resolution. This is'
         ' usually due to difference between how `Cargo.lock` conflict is'
-        ' handled during merge and rebase. This is normal, and you should still'
+        ' handled during merge and rebase. This is normal, and you should still' # noqa
         ' perform step 5 to update this PR.\n\n'
         '</details>\n\n'
     ).format(branch=state.head_ref.split(':', 1)[1])
@@ -974,7 +975,7 @@ def create_merge(state, repo_cfg, branch, logger, git_cfg,
                         stderr=subprocess.STDOUT,
                         universal_newlines=True)
                 except subprocess.CalledProcessError as e:
-                    comment += '<details><summary>Error message</summary>\n\n```text\n'
+                    comment += '<details><summary>Error message</summary>\n\n```text\n' # noqa
                     comment += e.output
                     comment += '\n```\n\n</details>'
                     pass

homu/server.py

@@ -196,7 +196,10 @@ def callback():
         logger.warn('/callback encountered an error '
                     'during github oauth callback')
         # probably related to https://gitlab.com/pycqa/flake8/issues/42
-        lazy_debug(logger, lambda: 'github oauth callback err: {}'.format(ex))  # noqa
+        lazy_debug(
+            logger,
+            lambda ex=ex: 'github oauth callback err: {}'.format(ex),
+        )
         abort(502, 'Bad Gateway')
 
     args = urllib.parse.parse_qs(res.text)
@@ -653,9 +656,10 @@ def buildbot():
                     except Exception as ex:
                         logger.warn('/buildbot encountered an error during '
                                     'github logs request')
-                        # probably related to
-                        # https://gitlab.com/pycqa/flake8/issues/42
-                        lazy_debug(logger, lambda: 'buildbot logs err: {}'.format(ex))  # noqa
+                        lazy_debug(
+                            logger,
+                            lambda ex=ex: 'buildbot logs err: {}'.format(ex),
+                        )
                         abort(502, 'Bad Gateway')
 
                     mat = INTERRUPTED_BY_HOMU_RE.search(res.text)