From b8bc482da402b1b8dd24345d35d6a91239c91699 Mon Sep 17 00:00:00 2001
From: Steven Rieder <steven@rieder.nl>
Date: Tue, 26 Nov 2024 13:53:51 +0100
Subject: [PATCH] Remove default number of particles

---
 src/amuse/ic/molecular_cloud.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/amuse/ic/molecular_cloud.py b/src/amuse/ic/molecular_cloud.py
index c11e69b4ad..b1733bb2d7 100644
--- a/src/amuse/ic/molecular_cloud.py
+++ b/src/amuse/ic/molecular_cloud.py
@@ -9,7 +9,7 @@
 def new_molecular_cloud(
     nf=32,
     power=-3.0,
-    target_number_of_stars=10000,
+    target_number_of_stars=None,
     ethep_ratio=0.01,
     convert_nbody=None,
     ekep_ratio=1.0,
@@ -28,9 +28,12 @@ def new_molecular_cloud(
         if target_number_of_stars != targetN:
             raise ValueError(
                 "targetN and target_number_of_stars have different values, "
-                "this is only allowed if targetN is None"
+                "this is only allowed if targetN is None and target_number_of_stars "
+                "is not None"
             )
         targetN = target_number_of_stars
+    if target_number_of_stars is None:
+        raise ValueError("target_number_of_stars must be set")
     return molecular_cloud(
         nf=nf,
         power=power,