diff --git a/src/diagnosers/00-basesystem.py b/src/diagnosers/00-basesystem.py
index aeb9956a5..20b5cde6a 100644
--- a/src/diagnosers/00-basesystem.py
+++ b/src/diagnosers/00-basesystem.py
@@ -138,7 +138,12 @@ class MyDiagnoser(Diagnoser):
             )
 
         # Using yunohost testing channel
-        if os.system("grep -q '^\\s*deb\\s*.*yunohost.org.*\\stesting' /etc/apt/sources.list /etc/apt/sources.list.d/*") == 0:
+        if (
+            os.system(
+                "grep -q '^\\s*deb\\s*.*yunohost.org.*\\stesting' /etc/apt/sources.list /etc/apt/sources.list.d/*"
+            )
+            == 0
+        ):
             yield dict(
                 meta={"test": "apt_yunohost_channel"},
                 status="WARNING",
@@ -150,7 +155,12 @@ class MyDiagnoser(Diagnoser):
         # will cause the machine to spontaenously upgrade everything as soon as next debian is released ...
         # Note that we grep this from the policy for libc6, because it's hard to know exactly which apt repo
         # is configured (it may not be simply debian.org)
-        if os.system("apt policy libc6 2>/dev/null | grep '^\\s*500' | awk '{print $3}' | tr '/' ' ' | awk '{print $1}' | grep -q 'stable'") == 0:
+        if (
+            os.system(
+                "apt policy libc6 2>/dev/null | grep '^\\s*500' | awk '{print $3}' | tr '/' ' ' | awk '{print $1}' | grep -q 'stable'"
+            )
+            == 0
+        ):
             yield dict(
                 meta={"test": "apt_debian_codename"},
                 status="WARNING",
diff --git a/src/tools.py b/src/tools.py
index 8ff89a1dd..7fc061c00 100644
--- a/src/tools.py
+++ b/src/tools.py
@@ -402,11 +402,13 @@ def tools_update(target=None):
         logger.info(m18n.n("already_up_to_date"))
 
     important_yunohost_upgrade = False
-    if upgradable_system_packages and any(p["name"] == "yunohost" for p in upgradable_system_packages):
+    if upgradable_system_packages and any(
+        p["name"] == "yunohost" for p in upgradable_system_packages
+    ):
         yunohost = [p for p in upgradable_system_packages if p["name"] == "yunohost"][0]
         current_version = yunohost["current_version"].split(".")[:2]
         new_version = yunohost["new_version"].split(".")[:2]
-        important_yunohost_upgrade = (current_version != new_version)
+        important_yunohost_upgrade = current_version != new_version
 
     # Wrapping this in a try/except just in case for some reason we can't load
     # the migrations, which would result in the update/upgrade process being blocked...
@@ -521,7 +523,10 @@ def tools_upgrade(operation_logger, target=None):
         returncode = call_async_output(dist_upgrade, callbacks, shell=True)
 
         # If yunohost is being upgraded from the webadmin
-        if any(p["name"] == "yunohost" for p in upgradables) and Moulinette.interface.type == "api":
+        if (
+            any(p["name"] == "yunohost" for p in upgradables)
+            and Moulinette.interface.type == "api"
+        ):
 
             # Restart the API after 10 sec (at now doesn't support sub-minute times...)
             # We do this so that the API / webadmin still gets the proper HTTP response