From 45adbbb2e13e0f90dfe96d6aef0be73ffca9b354 Mon Sep 17 00:00:00 2001
From: user <59329744+dilpath@users.noreply.github.com>
Date: Fri, 13 Mar 2026 17:39:07 +0100
Subject: [PATCH] disallow truthy/falsey values in estimate column

---
 petab/v1/lint.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/petab/v1/lint.py b/petab/v1/lint.py
index 434b5030..33e2d619 100644
--- a/petab/v1/lint.py
+++ b/petab/v1/lint.py
@@ -675,7 +675,7 @@ def assert_parameter_estimate_is_boolean(parameter_df: pd.DataFrame) -> None:
         AssertionError: in case of problems
     """
     for estimate in parameter_df[ESTIMATE]:
-        if int(estimate) not in [True, False]:
+        if str(estimate) not in ["0", "1"]:
             raise AssertionError(
                 f"Expected 0 or 1 but got {estimate} in {ESTIMATE} column."
             )