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-rw-r--r--Modules/_io/bytesio.c4
-rw-r--r--Modules/_io/textio.c2
2 files changed, 3 insertions, 3 deletions
diff --git a/Modules/_io/bytesio.c b/Modules/_io/bytesio.c
index b5d308a8bc..f4261b3713 100644
--- a/Modules/_io/bytesio.c
+++ b/Modules/_io/bytesio.c
@@ -393,7 +393,7 @@ _io_BytesIO_tell_impl(bytesio *self)
static PyObject *
read_bytes(bytesio *self, Py_ssize_t size)
{
- char *output;
+ const char *output;
assert(self->buf != NULL);
assert(size <= self->string_size);
@@ -502,7 +502,7 @@ _io_BytesIO_readlines_impl(bytesio *self, PyObject *arg)
{
Py_ssize_t maxsize, size, n;
PyObject *result, *line;
- char *output;
+ const char *output;
CHECK_CLOSED(self);
diff --git a/Modules/_io/textio.c b/Modules/_io/textio.c
index 12dba38d73..92d6faafa2 100644
--- a/Modules/_io/textio.c
+++ b/Modules/_io/textio.c
@@ -2640,7 +2640,7 @@ _io_TextIOWrapper_tell_impl(textio *self)
Py_ssize_t chars_to_skip, chars_decoded;
Py_ssize_t skip_bytes, skip_back;
PyObject *saved_state = NULL;
- char *input, *input_end;
+ const char *input, *input_end;
Py_ssize_t dec_buffer_len;
int dec_flags;