shared/runtime/sys_stdio_mphal: Fix docstring for stdio.

Signed-off-by: timdechant <[email protected]>

Author: timdechant

tests/basics/sys_stdio.py

@@ -19,15 +19,3 @@
 print('TextIOWrapper' in str(type(sys.stdout)))
 print('TextIOWrapper' in str(type(sys.stderr)))
 print('TextIOWrapper' in str(type(sys.stdin)))
-
-# # .buffer member is optional
-# try:
-#     print('FileIO' in str(sys.stdout.buffer))
-#     print('FileIO' in str(sys.stderr.buffer))
-#     print('FileIO' in str(sys.stdin.buffer))
-#
-#     print('FileIO' in str(type(sys.stdout.buffer)))
-#     print('FileIO' in str(type(sys.stderr.buffer)))
-#     print('FileIO' in str(type(sys.stdin.buffer)))
-# except AttributeError:
-#     print("SKIP")

tests/basics/sys_stdio_buffer.py

@@ -0,0 +1,33 @@
+# Test sys.std* objects.
+
+import sys
+
+try:
+    sys.stdout
+    sys.stdin
+    sys.stderr
+except AttributeError:
+    print("SKIP")
+    raise SystemExit
+
+# CPython is more verbose; no need to match exactly
+
+print('TextIOWrapper' in str(sys.stdout))
+print('TextIOWrapper' in str(sys.stderr))
+print('TextIOWrapper' in str(sys.stdin))
+
+print('TextIOWrapper' in str(type(sys.stdout)))
+print('TextIOWrapper' in str(type(sys.stderr)))
+print('TextIOWrapper' in str(type(sys.stdin)))
+
+# # .buffer member is optional
+# try:
+#     print('FileIO' in str(sys.stdout.buffer))
+#     print('FileIO' in str(sys.stderr.buffer))
+#     print('FileIO' in str(sys.stdin.buffer))
+#
+#     print('FileIO' in str(type(sys.stdout.buffer)))
+#     print('FileIO' in str(type(sys.stderr.buffer)))
+#     print('FileIO' in str(type(sys.stdin.buffer)))
+# except AttributeError:
+#     print("SKIP")