diff --git a/Misc/NEWS.d/next/Core_and_Builtins/2026-05-02-09-43-45.gh-issue-149237.-dY_PV.rst b/Misc/NEWS.d/next/Core_and_Builtins/2026-05-02-09-43-45.gh-issue-149237.-dY_PV.rst
new file mode 100644
index 00000000000000..1d2bb3274f40e6
--- /dev/null
+++ b/Misc/NEWS.d/next/Core_and_Builtins/2026-05-02-09-43-45.gh-issue-149237.-dY_PV.rst
@@ -0,0 +1 @@
+Fix `input` assuming the last character being a '\n' and removing it
diff --git a/Python/bltinmodule.c b/Python/bltinmodule.c
index 35b30a243318cc..feb6a9ea1c7ff6 100644
--- a/Python/bltinmodule.c
+++ b/Python/bltinmodule.c
@@ -2586,7 +2586,8 @@ builtin_input_impl(PyObject *module, PyObject *prompt)
                 result = NULL;
             }
             else {
-                len--;   /* strip trailing '\n' */
+                if (s[len-1] == '\n')
+                    len--;   /* strip trailing '\n' */
                 if (len != 0 && s[len-1] == '\r')
                     len--;   /* strip trailing '\r' */
                 result = PyUnicode_Decode(s, len, stdin_encoding_str,