Query with boolean parameter

Hi all
Regarding query and parameter binding in psycopg3:

cur.execute('SELECT * FROM system.app_user WHERE can_edit_views = %s',
(True,))
<psycopg.Cursor [TUPLES_OK] [INTRANS] (host=localhost port=5433
user=postgres database=test4) at 0x127b7f0>
cur.execute('SELECT * FROM system.app_user WHERE can_edit_views IS %s',
(True,))
Traceback (most recent call last):
Python Shell, prompt 10, line 1
# Used internally for debug sandbox under external interpreter
File "C:\Python310\Lib\site-packages\psycopg\cursor.py", line 555, in
execute
raise ex.with_traceback(None)
psycopg.errors.SyntaxError: syntax error at or near "$1"
LINE 1: SELECT * FROM system.app_user WHERE can_edit_views IS $1
^
Is there any reason why the second query results in a syntax error?
I can use the first form but usually to check a boolean or null value in
SQL the IS [true|false|null]/ IS NOT [true|false|null] operator is used.

--
Paolo De Stefani