Question

I m 动用Aval,使一名SVN公司投入汽车,我想将SVN的指挥产出写到一个记录档案中。我能够使特别志愿人员协会运作起来,但问题是,在一项成功承诺时,<代码>替代程序在使用时,我不会回去任何产出。

When I run SVN manually, by comparison, I get output that shows the progress of the command and shows which files are being committed. That s what I want in my log file. Is SVN outputting that data to a buffer than stdout or stderr? How can I capture that data for my log?

这里使用的是Im。

cmd = "svn commit --non-interactive --no-auth-cache -m  Automatic commit  ./"
process = subprocess.Popen(cmd,
                           shell=True,
                           stdout=subprocess.PIPE,
                           stderr=subprocess.PIPE,
                           universal_newlines=True)
result = process.wait()

# Output
out = process.stdout.read()
err = process.stderr.read()

当我操作该守则和该承诺取得成功时,<代码>out和err 变量都是空的。

Answer 1

Don t use wait() when You are using PIPE. 使用通信

process = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE,
          stderr=subprocess.PIPE, universal_newlines=True)

out, err = process.communicate()

http://docs.python.org/library/subprocess.html#subprocess.P open.wait” rel=“noreferer” 替代程序:

Warning
Use communicate() rather than .stdin.write, .stdout.read or .stderr.read to avoid deadlocks due to any of the other OS pipe buffers filling up and blocking the child process.

Answer 2

It s working in my solution:

svn_commit_t =  svn commit "%s" -m "ticket #%s automerge"  % (directory, tic)

svn_co = subprocess.Popen(svn_commit_t, shell=True, stdout=subprocess.PIPE,stderr=subprocess.PIPE, universal_newlines=True)

out, err = svn_co.communicate()

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