readline() args must be an int #3521
diff --git a/Lib/_pyio.py b/Lib/_pyio.py
index fe020fd..e580366 100644
--- a/Lib/_pyio.py
+++ b/Lib/_pyio.py
@@ -460,6 +460,8 @@
return 1
if limit is None:
limit = -1
+ elif not isinstance(limit, int):
+ raise TypeError("limit must be an integer")
res = bytearray()
while limit < 0 or len(res) < limit:
b = self.read(nreadahead())
@@ -1741,6 +1743,8 @@
raise ValueError("read from closed file")
if limit is None:
limit = -1
+ elif not isinstance(limit, int):
+ raise TypeError("limit must be an integer")
# Grab all the decoded text (we will rewind any extra bits later).
line = self._get_decoded_chars()