From b579855419b18db7dd07219eef219c1f62364d65 Mon Sep 17 00:00:00 2001
From: "Kevin R. Thornton" <krthornt@uci.edu>
Date: Wed, 20 Nov 2024 09:56:48 -0800
Subject: [PATCH] Handle invalid proportions

* update demes-sped
---
 demes-spec     |  2 +-
 demes/demes.py | 13 ++++++++++---
 2 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/demes-spec b/demes-spec
index b2341f1..0f5fa52 160000
--- a/demes-spec
+++ b/demes-spec
@@ -1 +1 @@
-Subproject commit b2341f13e51808f3849a2253c188549c163525a8
+Subproject commit 0f5fa522fd9c79eb01f37931574a703305ac8add
diff --git a/demes/demes.py b/demes/demes.py
index 9ea2c43..2f1cdf3 100644
--- a/demes/demes.py
+++ b/demes/demes.py
@@ -52,6 +52,11 @@ def unit_interval(self, attribute, value):
         raise ValueError(f"must have 0 <= {attribute.name} <= 1")
 
 
+def unit_interval_exclusive_lo(self, attribute, value):
+    if not (0 < value <= 1):
+        raise ValueError(f"must have 0 < {attribute.name} <= 1")
+
+
 def sum_less_than_one(self, attribute, value):
     if sum(value) > 1:
         raise ValueError(f"{attribute.name} must sum to less than one")
@@ -480,7 +485,9 @@ class Pulse:
     time: Time = attr.ib(validator=[int_or_float, positive, finite])
     proportions: List[Proportion] = attr.ib(
         validator=attr.validators.deep_iterable(
-            member_validator=attr.validators.and_(int_or_float, unit_interval),
+            member_validator=attr.validators.and_(
+                int_or_float, unit_interval_exclusive_lo
+            ),
             iterable_validator=attr.validators.instance_of(list),
         )
     )
@@ -2095,7 +2102,7 @@ def fromdict(cls, data: MutableMapping[str, Any]) -> Graph:
                 proportions=(
                     list,
                     attr.validators.deep_iterable(
-                        member_validator=int_or_float,
+                        member_validator=[int_or_float, unit_interval_exclusive_lo],
                         iterable_validator=attr.validators.instance_of(list),
                     ),
                 ),
@@ -2156,7 +2163,7 @@ def fromdict(cls, data: MutableMapping[str, Any]) -> Graph:
                     list,
                     attr.validators.deep_iterable(
                         member_validator=attr.validators.and_(
-                            int_or_float, unit_interval
+                            int_or_float, unit_interval_exclusive_lo
                         ),
                         iterable_validator=attr.validators.and_(
                             attr.validators.instance_of(list),