Revert changeset 838:00fd67211882 because identified contexts are not tested
for suitability with invocations, as illustrated by the methods_unbound test.
1fromsysimportlstdin 2 3printlstdin# <libc.io.sysstream instance> 4printlstdin.encoding# ISO-8859-15 5print"Reading 10 bytes..." 6s=lstdin.read(10) 7prints 8 9print"Reading to end of file..." 10s=lstdin.read() 11prints