switch indentation to Python's standard 4-spaces

Author: p-avital

docs/index.rst

@@ -123,7 +123,7 @@ Subscriber
     :members:
 
 PullSubscriber
-----------
+--------------
 .. autoclass:: zenoh.PullSubscriber
     :members:
 

zenoh/__init__.py

@@ -8,23 +8,23 @@
 from .queryable import Queryable, Query
 
 def open(*args, **kwargs):
-	return Session(*args, **kwargs)
+    return Session(*args, **kwargs)
 
 class Scout:
-	def __init__(self, inner, receiver):
-		self._inner_ = inner
-		self.receiver = receiver
-	
-	def stop(self):
-		self._inner_ = None
+    def __init__(self, inner, receiver):
+        self._inner_ = inner
+        self.receiver = receiver
+    
+    def stop(self):
+        self._inner_ = None
 
 def scout(handler: IntoHandler[Hello, Any, Any] = None, what: str = None, config: Config = None, timeout=None):
-	from threading import Timer
-	if handler is None:
-		handler = ListCollector()
-	handler = Handler(handler, lambda x: Hello._upgrade_)
-	scout = _scout(handler.closure, config, what)
-	scout = Scout(scout, handler.receiver)
-	if timeout:
-		Timer(timeout, lambda: scout.stop()).start()
-	return scout
+    from threading import Timer
+    if handler is None:
+        handler = ListCollector()
+    handler = Handler(handler, lambda x: Hello._upgrade_)
+    scout = _scout(handler.closure, config, what)
+    scout = Scout(scout, handler.receiver)
+    if timeout:
+        Timer(timeout, lambda: scout.stop()).start()
+    return scout