Use and enforce python3 shebangs in userscripts

See #6080

1 files changed, 6 insertions, 2 deletions

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