Use and enforce python3 shebangs in userscripts

See #6080

5 files changed, 10 insertions, 6 deletions

diff --git a/misc/userscripts/add-nextcloud-bookmarks b/misc/userscripts/add-nextcloud-bookmarks
index 5da887086..86f4f5bc7 100755
--- a/misc/userscripts/add-nextcloud-bookmarks
+++ b/misc/userscripts/add-nextcloud-bookmarks
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 """
 Behavior:
diff --git a/misc/userscripts/add-nextcloud-cookbook b/misc/userscripts/add-nextcloud-cookbook
index a348417e0..3952bb16f 100755
--- a/misc/userscripts/add-nextcloud-cookbook
+++ b/misc/userscripts/add-nextcloud-cookbook
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 """
 Behavior:
diff --git a/misc/userscripts/readability b/misc/userscripts/readability
index 4cf987c70..f9cbbf829 100755
--- a/misc/userscripts/readability
+++ b/misc/userscripts/readability
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # Executes python-readability on current page and opens the summary as new tab.
 #
diff --git a/misc/userscripts/ripbang b/misc/userscripts/ripbang
index b35ff7777..df9cb2fbc 100755
--- a/misc/userscripts/ripbang
+++ b/misc/userscripts/ripbang
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # Adds DuckDuckGo bang as searchengine.
 #
diff --git a/scripts/dev/misc_checks.py b/scripts/dev/misc_checks.py
index 1d6c3155e..f66081dbf 100644
--- a/scripts/dev/misc_checks.py
+++ b/scripts/dev/misc_checks.py
@@ -313,14 +313,18 @@ def check_userscript_shebangs(_args: argparse.Namespace) -> bool:
             continue
 
         with sub.open('r', encoding='utf-8') as f:
-            shebang = f.readline()
+            shebang = f.readline().rstrip('\n')
         assert shebang.startswith('#!'), shebang
-        binary = shebang.split()[0][2:]
+        shebang = shebang[2:]
 
+        binary = shebang.split()[0]
         if binary not in ['/bin/sh', '/usr/bin/env']:
             bin_name = pathlib.Path(binary).name
             print(f"In {sub}, use #!/usr/bin/env {bin_name} instead of #!{binary}")
             ok = False
+        elif shebang in ['/usr/bin/env python', '/usr/bin/env python2']:
+            print(f"In {sub}, use #!/usr/bin/env python3 instead of #!{shebang}")
+            ok = False
 
     return ok