From cf7b0757dc1fb69542178207c3902f75344c986a Mon Sep 17 00:00:00 2001
From: Jakub Stasiak <jakub@stasiak.at>
Date: Mon, 9 Dec 2019 23:56:33 +0100
Subject: [PATCH] Fix UnsatisfiedRequirement rendering

The issue helpfully described and solution suggested by eugenhu.
UnsatisfiedRequirement's __str__ depends on there being two arguments
(the first one optionally None).

Closes GH-129.
---
 injector/__init__.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/injector/__init__.py b/injector/__init__.py
index 514a237..ffad592 100644
--- a/injector/__init__.py
+++ b/injector/__init__.py
@@ -590,7 +590,7 @@ class Binder:
                 self._bindings[interface] = binding
                 return binding, self
 
-        raise UnsatisfiedRequirement(interface)
+        raise UnsatisfiedRequirement(None, interface)
 
     def _is_special_interface(self, interface):
         # "Special" interfaces are ones that you cannot bind yourself but