2.4isms for bzr

[John A Meinel]

Aaron Bentley wrote:

One small thing, you don't have to call "process.wait()" after 
process.communicate() because communicate already waits for the process. 
You can just use process.returncode

John
=:->

+
+def write_to_cmd(args, input=""):
+    process = Popen(args, bufsize=len(input), stdin=PIPE, stdout=PIPE,
+                    stderr=PIPE, close_fds=True)
+    stdout, stderr = process.communicate(input)
+    status = process.wait()
+    if status < 0:
+        raise Exception("%s killed by signal %i" (args[0], -status))
+    return stdout, stderr, status
+

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