winexpect import in a .py not working when running through cmd

Question

Why I am getting this error, when I try to run it through python corenlp.py?

Traceback (most recent call last):
File "corenlp.py", line 23, in (module)
from winpexpect import winspawn
File "C:\Python27\1ib\site-packages\winpexpect-1.5-py2.7.egg\winpexpect.py", 1ine 391, in (module)
class winspawn(spawn):
TypeError: Error when calling the metaclass bases
function() argument 1 must be code, not str

But, When i use it in PythonShell GUI, it is working perfectly.

from winpexpect import winspawn
child = winspawn('java -cp "C:\\Python27\\Scripts\\stanford-corenlp-full-2014-08-27\\*" -Xmx2g edu.stanford.nlp.pipeline.StanfordCoreNLP -annotators tokenize,ssplit,pos,lemma,ner,parse,dcoref -ner.model edu/stanford/nlp/models/ner/english.all.3class.caseless.distsim.crf.ser.gz')

Answer 1

Finally I was able to resolve my problem(Thanks to @MichaelPetch). I tried this simple example test.py

from winpexpect import winspawn
child=winspawn("java")

It was working fine. Then I realized something wrong with my imports or dependencies. I was using wexpect.py which is another alternative for windows. I renamed it to pexpect.py and copied to my code base.

But winpexpect has dependencies for pexpect(it has another pexpect file on its own folder). When I try to run my .py through cmd it is referring the file in the same folder which is pexpect, I just renamed.

Solution: I just removed wexpect.

Answer 2

You are getting this error locally because your Python27 doesn't have a prerequisite component installed. In particular it needs Pywin32 installed. You need to download and install Pywin32 from here (specifically the 2.7 version in your case). PythonShell GUI must have this extension already installed so it works.