Hello, I checked under linux and it works : text.txt : "first line of the text file second line of the text file"
test.py : "import sys a = sys.stdin.readlines() x = ''.join(a) x = x.upper() sys.stdout.write(x)" >cat text.txt | python test.py But I reinstalled Python 2.5 under Windows XP and it doesn't work anyway. Can you confirm that your script works with Win XP and Python 2.5 ? Regards Rolf van de Krol a écrit : > I don't know what you did with your Python installation, but for me this > works perfectly. > > test3.py contains: > <code> > import sys > > print sys.stdin.readlines() > </code> > > test.txt contains: > <code> > Testline1 > Testline2 > </code> > > Output of 'python test3.py < test.txt' is: > <code> > ['Testline1\n', 'Testline2'] > </code> > > Just plain simple and just works. > > Rolf > > > > Bernard Desnoues wrote: >> Rolf van de Krol a écrit : >> >>> According to various tutorials this should work. >>> >>> <code> >>> |import sys >>> data = sys.stdin.readlines() >>> print "Counted", len(data), "lines."| >>> </code> >>> >>> Please use google before asking such questions. This was found with >>> only one search for the terms 'python read stdin' >>> >>> Rolf >>> >>> Bernard Desnoues wrote: >>> >>>> Hi, >>>> >>>> I've got a problem with the use of Redmon (redirection port >>>> monitor). I intend to develop a virtual printer so that I can modify >>>> data sent to the printer. >>>> Redmon send the data flow to the standard input and lauchs the >>>> Python program which send modified data to the standard output >>>> (Windows XP and Python 2.5 context). >>>> I can manipulate the standard output. >>>> >>>> "import sys >>>> sys.stdout.write(data)" >>>> >>>> it works. >>>> But how to manipulate standard input so that I can store data in a >>>> string or in an object file ? There's no "read" method. >>>> >>>> "a = sys.stdin.read()" doesn't work. >>>> "f = open(sys.stdin)" doesn't work. >>>> >>>> I don't find anything in the documentation. How to do that ? >>>> Thanks in advance. >>>> >>>> Bernard Desnoues >>>> Librarian >>>> Bibliothèque de géographie - Sorbonne >>>> >> >> Hello Rolf, >> >> I know this code because I have search a solution ! >> Your google code doesn't work ! No attribute "readlines". >> >> >>> import sys >> >>> data = sys.stdin.readlines() >> >> Traceback (most recent call last): >> File "<pyshell#1>", line 1, in <module> >> data = sys.stdin.readlines() >> AttributeError: readlines -- http://mail.python.org/mailman/listinfo/python-list