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110 lines
2.3 KiB
Python
110 lines
2.3 KiB
Python
"""quietconsole - A module to keep console I/O quiet but dump it when needed"""
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import types
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import sys
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class _PseudoStdin:
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def __init__(self, stdouterr):
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self.keep_stdin = sys.stdin
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sys.stdin = self
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self.keep_stdouterr = stdouterr
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def __del__(self):
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self.keep_stdin = self.keep_stdouterr = None
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def _revert(self):
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"""Return to old state, with true stdio"""
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if self.keep_stdin == None:
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return
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sys.stdin = self.keep_stdin
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self.keep_stdin = None
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self.keep_stdouterr._revert(1)
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self.keep_stdouterr = None
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def read(self, *args):
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self._revert()
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return apply(sys.stdin.read, args)
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def readlines(self, *args):
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self._revert()
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return apply(sys.stdin.readlines, args)
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def readline(self, *args):
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self._revert()
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return apply(sys.stdin.readline, args)
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def close(self):
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self._revert()
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sys.stdin.close()
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class _PseudoStdouterr:
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def __init__(self):
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self.keep_stdout = sys.stdout
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self.keep_stderr = sys.stderr
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sys.stdout = sys.stderr = self
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self.data = []
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def __del__(self):
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self.keep_stdout = self.keep_stderr = None
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def _revert(self, dumpdata=0):
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if self.keep_stdout == None:
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return
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sys.stdout = self.keep_stdout
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sys.stderr = self.keep_stderr
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sys.keep_stdout = self.keep_stderr = None
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if dumpdata and self.data:
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for d in self.data:
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sys.stdout.write(d)
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self.data = None
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def write(self, arg):
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self.data.append(arg)
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def writelines(self, arg):
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for d in arg:
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self.data.append(arg)
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def close(self):
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self.keep_stdout = self.keep_stderr = self.data = None
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beenhere = 0
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def install():
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global beenhere
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if beenhere:
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return
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beenhere = 1
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# There's no point in re-installing if the console has been active
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obj = _PseudoStdouterr()
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_PseudoStdin(obj)
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# No need to keep the objects, they're saved in sys.std{in,out,err}
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def revert():
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if type(sys.stdin) == types.FileType:
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return # Not installed
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sys.stdin._revert()
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def _test():
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import time
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install()
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print "You will not see this yet"
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time.sleep(1)
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print "You will not see this yet"
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time.sleep(1)
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print "You will not see this yet"
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time.sleep(1)
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print "You will not see this yet"
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time.sleep(1)
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print "You will not see this yet"
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time.sleep(1)
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print "5 seconds have passed, now you may type something"
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rv = sys.stdin.readline()
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print "You typed", rv
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if __name__ == '__main__':
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_test()
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