Issue #16682: Replace "Python string" to "bytes object" in audioop documentation.

Doc/library/audioop.rst

@@ -7,7 +7,7 @@
 
 The :mod:`audioop` module contains some useful operations on sound fragments.
 It operates on sound fragments consisting of signed integer samples 8, 16 or 32
-bits wide, stored in Python strings.  All scalar items are integers, unless
+bits wide, stored in bytes objects.  All scalar items are integers, unless
 specified otherwise.
 
 .. index::
@@ -126,7 +126,7 @@ The module defines the following variables and functions:
 .. function:: lin2alaw(fragment, width)
 
    Convert samples in the audio fragment to a-LAW encoding and return this as a
-   Python string.  a-LAW is an audio encoding format whereby you get a dynamic
+   bytes object.  a-LAW is an audio encoding format whereby you get a dynamic
    range of about 13 bits using only 8 bit samples.  It is used by the Sun audio
    hardware, among others.
 
@@ -151,7 +151,7 @@ The module defines the following variables and functions:
 .. function:: lin2ulaw(fragment, width)
 
    Convert samples in the audio fragment to u-LAW encoding and return this as a
-   Python string.  u-LAW is an audio encoding format whereby you get a dynamic
+   bytes object.  u-LAW is an audio encoding format whereby you get a dynamic
    range of about 14 bits using only 8 bit samples.  It is used by the Sun audio
    hardware, among others.