On Linux, one sometimes sees spurious errors after interrupting

gvanrossum · gvanrossum · commit 687ef6e70bf1 · 2000-01-12T16:28:58.000Z
previous output.  Call clearerr() to prevent past errors affecting our
ferror() test later, in PyObject_Print().  Suggested by Marc Lemburg.
diff --git a/Objects/object.c b/Objects/object.c
@@ -168,6 +168,7 @@ PyObject_Print(op, fp, flags)
 		return -1;
 	}
 #endif
+	clearerr(fp); /* Clear any previous error condition */
 	if (op == NULL) {
 		fprintf(fp, "<nil>");
 	}

Original file line number	Diff line number	Diff line change
`@@ -168,6 +168,7 @@ PyObject_Print(op, fp, flags)`
`168`	`168`	`return -1;`
`169`	`169`	`}`
`170`	`170`	`#endif`
	`171`	`+ clearerr(fp); /* Clear any previous error condition */`
`171`	`172`	`if (op == NULL) {`
`172`	`173`	`fprintf(fp, "<nil>");`
`173`	`174`	`}`