document that compile() can take bytes (closes #19910)
diff --git a/Doc/library/functions.rst b/Doc/library/functions.rst
index b125a78..ae29cd8 100644
--- a/Doc/library/functions.rst
+++ b/Doc/library/functions.rst
@@ -193,9 +193,9 @@
.. function:: compile(source, filename, mode, flags=0, dont_inherit=False, optimize=-1)
Compile the *source* into a code or AST object. Code objects can be executed
- by :func:`exec` or :func:`eval`. *source* can either be a string or an AST
- object. Refer to the :mod:`ast` module documentation for information on how
- to work with AST objects.
+ by :func:`exec` or :func:`eval`. *source* can either be a normal string, a
+ byte string, or an AST object. Refer to the :mod:`ast` module documentation
+ for information on how to work with AST objects.
The *filename* argument should give the file from which the code was read;
pass some recognizable value if it wasn't read from a file (``'<string>'`` is
diff --git a/Python/bltinmodule.c b/Python/bltinmodule.c
index dffdf46..c94daea 100644
--- a/Python/bltinmodule.c
+++ b/Python/bltinmodule.c
@@ -676,7 +676,7 @@
PyDoc_STRVAR(compile_doc,
"compile(source, filename, mode[, flags[, dont_inherit]]) -> code object\n\
\n\
-Compile the source string (a Python module, statement or expression)\n\
+Compile the source (a Python module, statement or expression)\n\
into a code object that can be executed by exec() or eval().\n\
The filename will be used for run-time error messages.\n\
The mode must be 'exec' to compile a module, 'single' to compile a\n\