I think this word choice makes more sense.
diff --git a/OpenSSL/crypto.py b/OpenSSL/crypto.py
index 6c07962..eeddbcb 100644
--- a/OpenSSL/crypto.py
+++ b/OpenSSL/crypto.py
@@ -39,7 +39,7 @@
     exception.
 
     When a call to native OpenSSL X509_verify_cert fails, additonal information
-    about the failure can be contained from the store context.
+    about the failure can be obtained from the store context.
     """
 
     errors = [