我正在转储管道数据，但是当我尝试使用pickle.loads读取时，出现错误

Question

this code works fine thats piping out

    allWriteNodes=nuke.allNodes("Write")
    test = nuke.allNodes()
    for index,each in enumerate(test):
        wrtNodelst.insert(index,each.name())
        print index, each.name()
    sys.stdout.write(pickle.dumps(wrtNodelst))
    quit()
except RuntimeError:
  sys.stderr.write('could not find %s\n' % target_file)
  raise

but this line that is going to read in different file causes error:

print pickle.loads(process.stdout.read())

giving IndexError : list index out of range... any idea what might be causing it and out to read pickled stdout data ? The Traceback error

Traceback (most recent call last):
File "\RenderUI.py", line 384, in execApp
print pickle.loads(process.stdout.read())
File "D:\Python26\lib\pickle.py", line 1374, in loads
return Unpickler(file).load()
File "D:\Python26\lib\pickle.py", line 858, in load
dispatch[key](self)
File "D:\Python26\lib\pickle.py", line 1203, in load_setitems
mark = self.marker()
File "D:\Python26\lib\pickle.py", line 874, in marker
while stack[k] is not mark: k = k-1
IndexError: list index out of range 

Answer 1

use

print pickle.load(process.stdout)

does this work?

read may not return the whole string.

Answer 2

This line:

   print index, each.name()

Causes issues, as it is sending debug output to stdout before the pickle is sent.