flake8 fixup

* fix trailing/ leading whitespaces
* fix None comparison to use is
+ add noqa ignore statements for the influx escape replacements
+ add noqa ignore statements around the bare excepts

TODO: This is only a temporary fix for most of the bare excepts, we need further specify those.

README.md

@@ -48,7 +48,7 @@ listen:
 
 acl:
   api:
-    user: 
+    user:
       - "api_user@magicbroccoli.de"
   loopback:
     ip:
@@ -59,7 +59,7 @@ acl:
 api_permissions:
   "api access":
     from:
-      - mod_http_api 
+      - mod_http_api
     who:
       access:
         allow:
@@ -81,7 +81,7 @@ configuration file should be located at `/etc/ejabberd-metrics.yml`.
 #### systemd service
 To properly operate the metrics exporter tools, we created some systemd service templates, to simplify the whole
 process. If the `ejabberd-metrics.yml` file is not accessible for the user`nobody:nogroup`, it is required to update the
-`User` and `Group` definitions inside the service file. 
+`User` and `Group` definitions inside the service file.
 If a virtualenv is used, it is required to update the `Environment=PATH` to include the `venv/bin` directory created
 earlier.
 

api.py

@@ -53,6 +53,6 @@ class EjabberdApi:
                     return fn(self._login, data)
                 return fn(data)
 
-            except:
+            except:  # noqa: E722
                 # this needs to be more specific
                 return {}

cleanup.py

@@ -38,13 +38,13 @@ class EjabberdCleanup(EjabberdApiCalls):
             lastdate = None
             try:
                 lastdate = datetime.datetime.strptime(last_stamp, "%Y-%m-%dT%H:%M:%SZ")
-            except:
+            except:  # noqa: E722
                 try:
                     lastdate = datetime.datetime.strptime(last_stamp, "%Y-%m-%dT%H:%M:%S.%fZ")
-                except:
+                except:  # noqa: E722
                     logging.error(f"{user}@{host}: not able to parse '{last_stamp}'")
                     return
-            if lastdate != None and lastdate - datetime.datetime.now() > datetime.timedelta(
+            if lastdate is not None and lastdate - datetime.datetime.now() > datetime.timedelta(
                 days=self.offline_since_days
             ):
                 self.delete_user(host, user, f"last seen @ {lastdate}")

influx.py

@@ -21,8 +21,8 @@ class Influx:
     @staticmethod
     def _rmspace(key: str = None, value: (str, int) = None):
         try:
-            key = key.replace(" ", "\ ")
-            value = value.replace(" ", "\ ")
+            key = key.replace(" ", "\ ")  # noqa: W605
+            value = value.replace(" ", "\ ")  # noqa: W605
         except (TypeError, AttributeError):
             pass
 

prometheus.py

@@ -23,7 +23,7 @@ class DynamicMetricsHandler(BaseHTTPRequestHandler):
             registry = registry.restricted_registry(params["name[]"])
         try:
             output = generate_latest(registry)
-        except:
+        except:  # noqa: E722
             self.send_error(500, "error generating metric output")
             raise
         self.send_response(200)