(Merge 3.2) Issue #10570: curses.tigetstr() is now expecting a byte string,

instead of a Unicode string.

This is an incompatible change, but the previous behaviour was completly wrong.

Doc/library/curses.rst

@@ -566,7 +566,7 @@ The module :mod:`curses` defines the following functions:
 
    Instantiate the string *str* with the supplied parameters, where *str* should
    be a parameterized string obtained from the terminfo database.  E.g.
-   ``tparm(tigetstr("cup"), 5, 3)`` could result in ``'\033[6;4H'``, the exact
+   ``tparm(tigetstr("cup"), 5, 3)`` could result in ``b'\033[6;4H'``, the exact
    result depending on terminal type.
 
 

Lib/test/test_curses.py

@@ -190,7 +190,7 @@ def module_funcs(stdscr):
     curses.tigetflag('hc')
     curses.tigetnum('co')
     curses.tigetstr('cr')
-    curses.tparm('cr')
+    curses.tparm(b'cr')
     curses.typeahead(sys.__stdin__.fileno())
     curses.unctrl('a')
     curses.ungetch('a')
@@ -280,6 +280,10 @@ def test_unget_wch(stdscr):
     if read != ch:
         raise AssertionError("%r != %r" % (read, ch))
 
+def test_issue10570():
+    b = curses.tparm(curses.tigetstr("cup"), 5, 3)
+    assert type(b) is bytes
+
 def main(stdscr):
     curses.savetty()
     try:
@@ -289,6 +293,7 @@ def main(stdscr):
         test_resize_term(stdscr)
         test_issue6243(stdscr)
         test_unget_wch(stdscr)
+        test_issue10570()
     finally:
         curses.resetty()
 

Misc/NEWS

@@ -350,6 +350,9 @@ Core and Builtins
 Library
 -------
 
+- Issue #10570: curses.tigetstr() is now expecting a byte string, instead of
+  a Unicode string.
+
 - Issue #13295: http.server now produces valid HTML 4.01 strict.
 
 - Issue #2892: preserve iterparse events in case of SyntaxError.

Modules/_cursesmodule.c

@@ -2642,7 +2642,7 @@ PyCurses_tparm(PyObject *self, PyObject *args)
 
     PyCursesSetupTermCalled;
 
-    if (!PyArg_ParseTuple(args, "s|iiiiiiiii:tparm",
+    if (!PyArg_ParseTuple(args, "y|iiiiiiiii:tparm",
                           &fmt, &i1, &i2, &i3, &i4,
                           &i5, &i6, &i7, &i8, &i9)) {
         return NULL;