From 0772db2b8ed46cbfc3cc2c18cbb985b10d4b9fe6 Mon Sep 17 00:00:00 2001
From: Guillaume Horel <guillaume.horel@gmail.com>
Date: Wed, 6 Dec 2023 15:22:00 -0500
Subject: raise on error

---
 pyisda/credit_index.pyx | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/pyisda/credit_index.pyx b/pyisda/credit_index.pyx
index 65dc439..ea1a809 100644
--- a/pyisda/credit_index.pyx
+++ b/pyisda/credit_index.pyx
@@ -111,8 +111,17 @@ cdef class CurveList:
 
     def __getitem__(self, tuple name not None):
         cdef:
-            char* buf = <char*>malloc(len(name[0]) + 3)
-            char* tmp
+            DocClause doc_clause
+            Seniority sen
+            str ticker
+            pair[CurveName, size_t] p
+
+        try:
+            ticker, sen, doc_clause = name
+        except ValueError as e:
+            raise KeyError(str(e)) from None
+        cdef:
+            char* buf = <char*>malloc(len(ticker) + 3)
 
         buf[0] = <char>sen
         buf[1] = <char>doc_clause
-- 
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