Fixed bug reported to Gregor Hoffleit:

akuchling · akuchling · commit 4c07f81d604d · 1998-12-14T19:36:14.000Z
&gt; mpz.mpz('\xff') should return mpz(255).  Instead it returns
&gt; mpz(4294967295L). Looks like the constructor doesn't work with strings
&gt; containing characters above chr(128).
Caused by using just 'char' where 'unsigned char' should have been used.
diff --git a/Modules/mpzmodule.c b/Modules/mpzmodule.c
@@ -969,7 +969,7 @@ MPZ_mpz(self, args)
 		mpz_clear(&mplongdigit);
 	}
 	else if (PyString_Check(objp)) {
-		char *cp = PyString_AS_STRING(objp);
+		unsigned char *cp = (unsigned char *)PyString_AS_STRING(objp);
 		int len = PyString_GET_SIZE(objp);
 		MP_INT mplongdigit;
 

Original file line number	Diff line number	Diff line change
`@@ -969,7 +969,7 @@ MPZ_mpz(self, args)`
`969`	`969`	`mpz_clear(&mplongdigit);`
`970`	`970`	`}`
`971`	`971`	`else if (PyString_Check(objp)) {`
`972`		`- char *cp = PyString_AS_STRING(objp);`
	`972`	`+ unsigned char cp = (unsigned char )PyString_AS_STRING(objp);`
`973`	`973`	`int len = PyString_GET_SIZE(objp);`
`974`	`974`	`MP_INT mplongdigit;`
`975`	`975`