python - bufsize must be an integer error while grepping a message

Question

我在尝试 grep 查找由日志中的多行组成的消息时遇到以下错误...任何人都可以提供有关如何克服此错误的输入吗？

代码:-

    print gerrit_commitmsg
    gerritlog = Popen('git','log','--grep','gerrit_commitmsg', stdout=PIPE, stderr=PIPE)
    print gerritlog

错误:-

Commit message:-

Build system changes

Build system changes to include packages in the build

Change-Id: I697558f01ae367d2baacdf2c7fcf1a03753edacd

Traceback (most recent call last):
  File "gerrits_in_workspace.py", line 87, in <module>
    main()
  File "gerrits_in_workspace.py", line 77, in main
    grep_commitmsg(gerrit_commitmsg)
  File "gerrits_in_workspace.py", line 48, in grep_commitmsg
    gerritlog = Popen('git','log','--grep','gerrit_commitmsg', stdout=PIPE, stderr=PIPE)
  File "/usr/lib/python2.7/subprocess.py", line 629, in __init__
    raise TypeError("bufsize must be an integer")

Answer 1

subprocess.Popen 类需要这样的参数列表:

Popen(args, bufsize=0, ...)

所以你通过了它:

• args = git
• bufsize = log

因此出现错误(bufsize 需要一个整数值)。命令向量需要是一个列表，如下所示:

gerritlog = Popen(['git','log','--grep','gerrit_commitmsg'], stdout=PIPE, stderr=PIPE)