Preserve boolean-looking text when wrapping cells and headers

tabulate/__init__.py

@@ -1646,12 +1646,13 @@ def _wrap_text_to_colwidths(
                 # formatting of types (such as datetimes) may need to be more
                 # explicit than just `str` of the object. Also doesn't work for
                 # custom floatfmt/intfmt, nor with any missing/blank cells.
+                # Preserve boolean strings: bool("False") would change their value.
                 casted_cell = (
                     missingval
                     if cell is None
                     else (
                         str(cell)
-                        if cell == "" or _isnumber(cell)
+                        if cell == "" or _isnumber(cell) or _isbool(cell)
                         else str(_type(cell, numparse)(cell))
                     )
                 )

test/test_textwrapper.py

@@ -3,6 +3,8 @@
 import datetime
 from textwrap import TextWrapper as OTW
 
+import pytest
+
 from tabulate import _CustomTextWrap as CTW, _strip_ansi, tabulate
 
 from common import assert_equal, skip
@@ -326,6 +328,29 @@ def test_wrap_optional_bool_strs():
     assert_equal(expected, result)
 
 
+@pytest.mark.parametrize("value", ["True", "False", True, False])
+@pytest.mark.parametrize("width", [3, 5, 10])
+@pytest.mark.parametrize("options", [{}, {"disable_numparse": True}])
+def test_wrap_bool_values_preserves_text(value, width, options):
+    """Wrapping must not interpret nonempty boolean strings as truthy."""
+    expected = str(value)
+    if width == 3 and (isinstance(value, str) or options.get("disable_numparse")):
+        expected = expected[:3] + "\n" + expected[3:]
+    result = tabulate([[value]], tablefmt="plain", maxcolwidths=width, **options)
+    assert_equal(expected, result)
+
+
+@pytest.mark.parametrize("value", ["True", "False"])
+@pytest.mark.parametrize("width", [3, 5, 10])
+@pytest.mark.parametrize("options", [{}, {"disable_numparse": True}])
+def test_wrap_bool_headers_preserves_text(value, width, options):
+    expected = value
+    if width == 3:
+        expected = expected[:3] + "\n" + expected[3:]
+    result = tabulate([], headers=[value], tablefmt="plain", maxheadercolwidths=width, **options)
+    assert_equal(expected, result)
+
+
 def test_wrap_wide_char_no_column_overflow():
     "TextWrapper: wide chars must not overflow the requested column width."
     try: