From e519633e163fdf1b5b3f4f14b2adf01c76344b75 Mon Sep 17 00:00:00 2001
From: Dhanya Thattil <dhanya.thattil@psi.ch>
Date: Thu, 22 Jan 2026 14:55:03 +0100
Subject: [PATCH] added patternstart to python (#1368)

* added patternstart to python

* release notesg
---
 RELEASE.txt                 |  2 ++
 python/slsdet/detector.py   |  4 ++++
 python/tests/test_CtbAPI.py | 20 +++++++++++++++++++-
 3 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/RELEASE.txt b/RELEASE.txt
index b88501983..6444ad4ac 100644
--- a/RELEASE.txt
+++ b/RELEASE.txt
@@ -39,6 +39,8 @@ Experimental support for building the detector client (including python bindings
 
 Detector.pattern (python) accepts also a pattern object, not only a pattern file
 
+added patternstart to python (ctb, xilinx_ctb , mythen3), only the detector class api was exposed (startPattern())
+
 2  On-board Detector Server Compatibility
 ==========================================
 
diff --git a/python/slsdet/detector.py b/python/slsdet/detector.py
index 930271cb7..ad6e23a3b 100755
--- a/python/slsdet/detector.py
+++ b/python/slsdet/detector.py
@@ -3785,6 +3785,10 @@ class Detector(CppDetectorApi):
         """
         return self.getPatterFileName()
 
+    def patternstart(self):
+        """[Ctb][Mythen3][Xilinx Ctb] Starts pattern. """
+        self.startPattern()
+        
     @property
     @element
     def patioctrl(self):
diff --git a/python/tests/test_CtbAPI.py b/python/tests/test_CtbAPI.py
index b82c5a4c7..13730f345 100644
--- a/python/tests/test_CtbAPI.py
+++ b/python/tests/test_CtbAPI.py
@@ -27,7 +27,7 @@ from slsdet import Detector, detectorType
 
 @pytest.fixture(
     scope="session", 
-    params=['ctb', 'xilinx_ctb', 'mythen3']
+    params=['ctb', 'xilinx_ctb', 'mythen3', 'jungfrau']
 )
 def simulator(request):
     """Fixture to start the detector server once and clean up at the end."""
@@ -382,4 +382,22 @@ def test_definelist_bit(simulator, request):
             d.define_bit(name="test_bit", addr=0x300, bit_position=1)
         assert "Bit Definitions only for CTB" in str(exc_info.value)
 
+    Log(LogLevel.INFOGREEN, f"✅ {request.node.name} passed")
+
+
+@pytest.mark.withdetectorsimulators
+def test_patternstart(simulator, request):
+    """ Test using patternstart for ctb, xilinx_ctb and mythen3."""
+    det_name = simulator
+    # setup
+    d = Detector()
+    d.hostname = f"localhost:{SERVER_START_PORTNO}" 
+
+    if det_name in ['ctb', 'xilinx_ctb', 'mythen3']:
+        d.patternstart()
+    else:
+        with pytest.raises(Exception) as exc_info:
+            d.patternstart()
+        assert "not implemented" in str(exc_info.value)
+
     Log(LogLevel.INFOGREEN, f"✅ {request.node.name} passed")
\ No newline at end of file