I'm trying to run code from this repo: https://github.com/tylin/coco-caption, specifically from https://github.com/tylin/coco-caption/blob/master/pycocoevalcap/tokenizer/ptbtokenizer.py, line 51-52:
p_tokenizer = subprocess.Popen(cmd, cwd=path_to_jar_dirname, \
stdout=subprocess.PIPE)
The error I get running this is
OSError: [Errno 2] No such file or directory
I can't figure out why the file can't be found.
The jar I'm trying to run is:
stanford-corenlp-3.4.1.jar
You can see the structure of directory by going to https://github.com/tylin/coco-caption/tree/master/pycocoevalcap/tokenizer. For more specificity into what my actual arguments are when I run the line of code:
cmd= ['java', '-cp', 'stanford-corenlp-3.4.1.jar', 'edu.stanford.nlp.process.PTBTokenizer', '-preserveLines', '-lowerCase', 'tmpWS5p0Z'],
and
path_to_dirname =abs_path_to_folder/tokenizer
I can see the jar that needs to be run, and it looks to be in the right place, so why can't python find it. (Note: I'm using python2.7.) And the temporary File 'tmpWS5p0Z' is where it should be.
Edit: I'm using Ubuntu
try an absolute path ( meaning the path beginning from root / )
https://en.wikipedia.org/wiki/Path_(computing)#Absolute_and_relative_paths
for relative paths in python see i.e. Relative paths in Python , How to refer to relative paths of resources when working with a code repository in Python
UPDATE:
As a test try subprocess.Popen() with the shell=True option and give an absolute path for any involved file, including tmpWS5p0Z
in this subprocess.Popen() call are involved two paths :
1) the python path, python has to find the java executable and the stanford-corenlp-3.4.1.jar which is essentially a java program with its own path
2) the java path of stanford-corenlp-3.4.1.jar
as this is all too complicated try
p_tokenizer = subprocess.Popen(['/absolute_path_to/java -cp /absolute_path_to/stanford-corenlp-3.4.1.jar /absolute_path_to/edu.stanford.nlp.process.PTBTokenizer -preserveLines -lowerCase /absolute_path_to/tmpWS5p0Z' ], shell=True)