@@ -457,7 +457,7 @@ functions.
457457 -:const: `0 ` means unbuffered (read and write are one
458458 system call and can return short)
459459 -:const: `1 ` means line buffered
460- (only usable if ``universal_newlines =Truei.e., in a text mode )
460+ (only usable if ``text =Trueor `` universal_newlines=True `` )
461461 - any other positive value means use a buffer of approximately that
462462 size
463463 - negative bufsize (the default) means the system default of
@@ -847,7 +847,8 @@ Instances of the :class:`Popen` class have the following methods:
847847 On Windows:meth: `kill ` is an alias for:meth: `terminate `.
848848
849849
850- The following attributes are also available:
850+ The following attributes are also set by the class for you to access.
851+ Reassigning them to new values is unsupported:
851852
852853..attribute ::Popen.args
853854
@@ -860,29 +861,29 @@ The following attributes are also available:
860861
861862 If the *stdin * argument was:data: `PIPE `, this attribute is a writeable
862863 stream object as returned by:func: `open `. If the *encoding * or *errors *
863- arguments were specified or the *universal_newlines * argument was `` True ``,
864- the stream is a text stream, otherwise it is a byte stream. If the * stdin *
865- argument was not:data: `PIPE `, this attribute is ``None ``.
864+ arguments were specified or the *text * or * universal_newlines * argument
865+ was `` True ``, the stream is a text stream, otherwise it is a byte stream.
866+ If the * stdin * argument was not:data: `PIPE `, this attribute is ``None ``.
866867
867868
868869..attribute ::Popen.stdout
869870
870871 If the *stdout * argument was:data: `PIPE `, this attribute is a readable
871872 stream object as returned by:func: `open `. Reading from the stream provides
872873 output from the child process. If the *encoding * or *errors * arguments were
873- specified or the *universal_newlines * argument was ``True ``, the stream is a
874- text stream, otherwise it is a byte stream. If the *stdout * argument was not
875- :data: `PIPE `, this attribute is ``None ``.
874+ specified or the *text * or * universal_newlines * argument was ``True ``, the
875+ stream is a text stream, otherwise it is a byte stream. If the *stdout *
876+ argument was not :data: `PIPE `, this attribute is ``None ``.
876877
877878
878879..attribute ::Popen.stderr
879880
880881 If the *stderr * argument was:data: `PIPE `, this attribute is a readable
881882 stream object as returned by:func: `open `. Reading from the stream provides
882883 error output from the child process. If the *encoding * or *errors * arguments
883- were specified or the *universal_newlines * argument was ``True ``, the stream
884- is a text stream, otherwise it is a byte stream. If the *stderr * argument was
885- not:data: `PIPE `, this attribute is ``None ``.
884+ were specified or the *text * or * universal_newlines * argument was ``True ``, the
885+ stream is a text stream, otherwise it is a byte stream. If the *stderr * argument
886+ was not:data: `PIPE `, this attribute is ``None ``.
886887
887888..warning ::
888889