Saturday, April 23, 2016

Python : OSError: [Errno 2] No such file or directory

By Hường Hana 8:30 PM , Leave a Comment

I am using pytesseract lib to extract text from image. This works fine when I am running code on localhost. But gives me above error when I deploy on openshift.

Below is code what I have written so far.

try:   import Image except ImportError:   from PIL import Image import pytesseract filePath = PATH_WHERE_FILE_IS_LOCATED # '/var/lib/openshift/555.../app-root/data/data/y.jpg' text = pytesseract.image_to_string(Image.open(filePath))  # this line produces error

Traceback of above error is

>>> pytesseract.image_to_string(Image.open(filePath)) Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/var/lib/openshift/56faaee42d527151d5000089/app-  root/runtime/repo/pytesseract/pytesseract.py", line 132, in  image_to_string boxes=boxes) File "/var/lib/openshift/56faaee42d527151d5000089/app-root/runtime/repo/pytesseract/pytesseract.py", line 73, in run_tesseract stderr=subprocess.PIPE) File "/opt/rh/python27/root/usr/lib64/python2.7/subprocess.py", line 710, in __init__ errread, errwrite) File "/opt/rh/python27/root/usr/lib64/python2.7/subprocess.py", line 1327, in _execute_child raise child_exception OSError: [Errno 2] No such file or directory

But Image.open(filePath) returns object reference

 <PIL.PngImagePlugin.PngImageFile image mode=RGBA size=1366x768 at 0x7FC5A9F719D0>

How to remove this error ? thanks in advance!!

5 Answers

Answers 1

Either you don't have tesseract-ocr installed on "openshift", or it is not in your PATH. See https://pypi.python.org/pypi/pytesseract/0.1 Check that you can execute tesseract command from command line.

Answers 2

As mentioned here install tesseract-ocr

You can rhc ssh to run commands. More windows specific details can be found here.

Answers 3

IMHO and if i understand well openshift, it maybe like Heroku, where the filesystems are volatile and the paths must be from slightly different or totally different,so, at first check:

  1. the paths are the same as in your local dev environment
  2. the paths exist
  3. you have enough rights to access the files in paths
  4. Please check openshift docs, file system specially:

I hope i was helpfull

Answers 4

Try this code, and check where is the error:

try:   import Image   print("image not from PIL") except ImportError:   print("image from PIL")   from PIL import Image import pytesseract import os filePath = PATH_WHERE_FILE_IS_LOCATED # '/var/lib/openshift/555.../app-root/data/data/y.jpg' if not os.path.exist(filePath):     print("no image file") I=None try:     I=Image.open(filePath) except Exception as e:     raise RuntimeError(" Can't open image because %s"% e) text = pytesseract.image_to_string(I)  # this line produces error

PS: You can print modules versions like this:

print Image.__version__

Answers 5

I think you may have not entered the correct path to the image. You should keep your paths in check.

Also have you verified the installation of tesseract-ocr? You should see that no errors are produced when you call the module using the import function and by checking it from the command line utility.

And as Wuelfhis Asuaje says you should make sure you have enough rights to access the files in the path.

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