如何将字符串传递到subprocess.Popen(使用stdin参数)?
如果我执行以下操作: import subprocess from cStringIO import StringIO subprocess.Popen(['grep','f'],stdout=subprocess.PIPE,stdin=StringIO('one\ntwo\nthree\nfour\nfive\nsix\n')).communicate()[0] 我得到: Traceback (most recent call last): File "<stdin>", line 1, in ? File "/build/toolchain/mac32/python-2.4.3/lib/python2.4/subprocess.py", line 533, in __init__ (p2cread, p2cwrite, File "/build/toolchain/mac32/python-2.4.3/lib/python2.4/subprocess.py", line 830, in _get_handles p2cread = stdin.fileno() AttributeError: 'cStringIO.StringI' object has no attribute 'fileno' 显然,cStringIO.StringIO对象没有足够接近库中的子程序来适应subprocess.Popen。我该如何解决?