import sys, locale
expressions = """ locale.getpreferredencoding() type(my_file) my_file.encoding sys.stdout.isatty() sys.stdout.encoding sys.stdin.isatty() sys.stdin.encoding sys.stderr.isatty() sys.stderr.encoding sys.getdefaultencoding() sys.getfilesystemencoding() """
my_file = open('dummy', 'w')
for expression in expressions.split(): value = eval(expression) print(expression.rjust(30), '->', repr(value))