I am trying to load the ontology but I get an error that you can see in the post, the code is shown below.
Code:
from owlready2 import *
import os
onto = get_ontology("file://C:/Users/achev/Documents/Carro.owl")
onto.load()
n_classes = len(list(onto.classes()))
print(n_classes)
Error:
File "c:/Users/achev/Desktop/Proyecto de grado/Python/prueba.py", line 4, in <module>
onto = get_ontology("file://C:/Users/achev/Documents/Carro.owl").load()
File "C:\ProgramData\Anaconda3\lib\site-packages\owlready2\namespace.py", line 810, in load
if self.world.graph.indexed: self._load_properties()
File "C:\ProgramData\Anaconda3\lib\site-packages\owlready2\namespace.py", line 849, in _load_properties
raise TypeError("'%s' belongs to more than one entity types (cannot be both a property and a class/an individual)!" % Prop.iri)
Related
I want to import an image dataset into Numpy arrays with images and labels. I am trying to use the image_dataset_loader to do this and have wrote this so far:
import image_dataset_loader
(x_train, y_train), (x_test, y_test) = image_dataset_loader.load('./data', ['train', 'test'])
I also have my data directory structured as follows:
data
-train
-male
-male_1.jpg
-male_2.jpg
-male_3.jpg
-male_4.jpg
-......
-female
-female_1.jpg
-female_2.jpg
-female_3.jpg
-female_4.jpg
-......
-test
-male
-male_1.jpg
-male_2.jpg
-male_3.jpg
-male_4.jpg
-......
-female
-female_1.jpg
-female_2.jpg
-female_3.jpg
-female_4.jpg
-......
I have formated all my images to be 120x120 and named them exactly as shown above. I have about 56000 files per category. When I run the script above, it throws the following error:
Traceback (most recent call last):
File "main.py", line 33, in <module>
(x_train, y_train), (x_test, y_test) = image_dataset_loader.load('./data', ['train', 'test'])
File "/home/user/anaconda3/envs/AIOS/lib/python3.8/site-packages/image_dataset_loader.py", line 44, in load
raise RuntimeError('Instance shapes are not consistent.')
RuntimeError: Instance shapes are not consistent.
Can someone please help me sort these images into Numpy arrays?
Check the color of your images. Chances are that some of your images may be grayscale.
I'm using pydicom (installed with pip3, on python 3.7, using Idle) and I need to access pixel_array values.
I just copy-paste the example provided into the documentation and this leads to two errors:
first is about the get_testdata_files operation, which is not working because
Python 3.7.3 (v3.7.3:ef4ec6ed12, Mar 25 2019, 22:22:05) [MSC v.1916 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license()" for more information.
>>>
==================== RESTART: D:\OneDrive\Desktop\test.py ====================
None
Traceback (most recent call last):
File "D:\OneDrive\Desktop\test.py", line 8, in <module>
filename = get_testdata_files("bmode.dcm")[0]
IndexError: list index out of range
I have solved this not using this operation.
second is about the pixel_array and I'm not so able to decode what is wrong, but it seems like the pixel_array is not populated. However I'm able to access other fields in the dataset and the file can be displayed (using ImageJ for example).
==================== RESTART: D:\OneDrive\Desktop\test.py ====================
None
Filename.........: bmode.dcm
Storage type.....: 1.2.840.10008.5.1.4.1.1.3.1
Patient's name...: Femoral trombenarterectomy, Case Report:
Patient id.......: Case Report 1
Modality.........: US
Study Date.......: 20110824
Image size.......: 768 x 1024, 27472108 bytes
Slice location...: (missing)
Traceback (most recent call last):
File "D:\OneDrive\Desktop\test.py", line 38, in <module>
plt.imshow(dataset.pixel_array, cmap=plt.cm.bone)
File "C:\Users\marcl\AppData\Local\Programs\Python\Python37\lib\site-packages\pydicom\dataset.py", line 949, in pixel_array
self.convert_pixel_data()
File "C:\Users\marcl\AppData\Local\Programs\Python\Python37\lib\site-packages\pydicom\dataset.py", line 895, in convert_pixel_data
raise last_exception
File "C:\Users\marcl\AppData\Local\Programs\Python\Python37\lib\site-packages\pydicom\dataset.py", line 863, in convert_pixel_data
arr = handler.get_pixeldata(self)
File "C:\Users\marcl\AppData\Local\Programs\Python\Python37\lib\site-packages\pydicom\pixel_data_handlers\pillow_handler.py", line 188, in get_pixeldata
UncompressedPixelData.extend(decompressed_image.tobytes())
File "C:\Users\marcl\AppData\Local\Programs\Python\Python37\lib\site-packages\PIL\Image.py", line 746, in tobytes
self.load()
File "C:\Users\marcl\AppData\Local\Programs\Python\Python37\lib\site-packages\PIL\ImageFile.py", line 261, in load
raise_ioerror(err_code)
File "C:\Users\marcl\AppData\Local\Programs\Python\Python37\lib\site-packages\PIL\ImageFile.py", line 58, in raise_ioerror
raise IOError(message + " when reading image file")
OSError: broken data stream when reading image file
Here is my code:
import matplotlib.pyplot as plt
import sys
import pydicom
import numpy
from pydicom.data import get_testdata_files
print(__doc__)
#filename = get_testdata_files("bmode.dcm")[0]
filename = "bmode.dcm"
dataset = pydicom.dcmread(filename)
# Normal mode:
print()
print("Filename.........:", filename)
print("Storage type.....:", dataset.SOPClassUID)
print()
pat_name = dataset.PatientName
display_name = pat_name.family_name + ", " + pat_name.given_name
print("Patient's name...:", display_name)
print("Patient id.......:", dataset.PatientID)
print("Modality.........:", dataset.Modality)
print("Study Date.......:", dataset.StudyDate)
if 'PixelData' in dataset:
rows = int(dataset.Rows)
cols = int(dataset.Columns)
print("Image size.......: {rows:d} x {cols:d}, {size:d} bytes".format(
rows=rows, cols=cols, size=len(dataset.PixelData)))
if 'PixelSpacing' in dataset:
print("Pixel spacing....:", dataset.PixelSpacing)
# use .get() if not sure the item exists, and want a default value if missing
print("Slice location...:", dataset.get('SliceLocation', "(missing)"))
# plot the image using matplotlib
plt.imshow(dataset.pixel_array, cmap=plt.cm.bone)
plt.show()
Could you help me to solve these two errors and access pixel_array values?
Don't hesitate to give me some advices /remarks/...
Thanks!
Hi Marc welcome to SO!
Your first error means that the get_testdata_files returns an empty list, so your file is not found. Have a look at the pydicom source, it shows that a search is performed in [DATA_ROOT]/test_files. Is your file located in that path?
Your second error is related to PIL and that can be quite difficult to debug and fix. First try to read the pixel_array from a dataset created from one of the supplied test files. If that works, your problem is probably that PIL cannot handle the specific encoding of your image data. You want to install and use GDCM instead of PIL to see if that solves the problem. Another user has had a similar issue as you, GDCM solved the problem. It can be a bit of a headache to get working unfortunately. Or have a look at this page, it shows some other alternatives on viewing the image data.
Use the example code from app engine will give an attribute error. The more strange thing is,
When the batch_size is 100, the first fetch will give an error while if it were set to 10, the second fetch will give the error, when the batch_size is 1, the 25th fetch will give the error. Is it due to the problem of remote API?
Python version: 2.7
App engine sdk version: 1.9.6
query = MyModel.all()
entities = query.fetch(100)
while entities:
for entity in entities:
# Do something with entity
query.with_cursor(query.cursor())
entities = query.fetch(100)
error message:
Traceback (most recent call last):
File "migrate.py", line 77, in <module>
entities = query.fetch(batch_size)
File "/home/kamel/Library/google_appengine/google/appengine/ext/db/__init__.py", line 2157, in fetch
return list(self.run(limit=limit, offset=offset, **kwargs))
File "/home/kamel/Library/google_appengine/google/appengine/ext/db/__init__.py", line 2326, in next
return self.__model_class.from_entity(self.__iterator.next())
File "/home/kamel/Library/google_appengine/google/appengine/ext/db/__init__.py", line 1435, in from_entity
entity_values = cls._load_entity_values(entity)
File "/home/kamel/Library/google_appengine/google/appengine/ext/db/__init__.py", line 1413, in _load_entity_values
value = prop.make_value_from_datastore(value)
File "/home/kamel/labola/src/model/properties.py", line 295, in make_value_from_datastore
return pickle.loads(value)
File "/usr/lib/python2.7/pickle.py", line 1382, in loads
return Unpickler(file).load()
File "/usr/lib/python2.7/pickle.py", line 858, in load
dispatch[key](self)
File "/usr/lib/python2.7/pickle.py", line 1083, in load_newobj
obj = cls.__new__(cls, *args)
AttributeError: class Reference has no attribute '__new__
I encountered the same issue when trying to unpickle python3 pickles under python2. The problem was linked to new-style classes becoming default in python3. (source)
Solution for me was to replace class AClass: by class AClass(object):
I read the "what is a metaclass in Python" but am still confused over it.
I am new to python and have been thrown into upgrading it from 2.5 to 2.7.
I have the following:
class UsersDB(db.Model):
Email = db.EmailProperty(required=True,verbose_name='Email *')
Enable = db.BooleanProperty(default=True)
and
class UsersQuickAddForm(forms.ModelForm):
def is_user_exist(self, account):
users_query = UsersDB.all().filter('Email =', account).fetch(1)
if len(users_query) > 0:
return True
return False
class Meta:
model = UsersDB
exclude = ['Enable']
but when I try to execute it on the google site, I get:
Traceback (most recent call last):
File "/base/data/home/runtimes/python27/python27_lib/versions/1/google/appengine/runtime/wsgi.py", line 239, in Handle
handler = _config_handle.add_wsgi_middleware(self._LoadHandler())
File "/base/data/home/runtimes/python27/python27_lib/versions/1/google/appengine/runtime/wsgi.py", line 298, in _LoadHandler
handler, path, err = LoadObject(self._handler)
File "/base/data/home/runtimes/python27/python27_lib/versions/1/google/appengine/runtime/wsgi.py", line 84, in LoadObject
obj = import(path[0])
File "/base/data/home/apps/s~ldsdgidev/glen27.371429613087607751/LDSGH.py", line 8, in
from core.decorators import permissionRequired
File "/base/data/home/apps/s~ldsdgidev/glen27.371429613087607751/core/decorators.py", line 7, in
from core.initialization import loginIf
File "/base/data/home/apps/s~ldsdgidev/glen27.371429613087607751/core/initialization.py", line 6, in
import photo_images
File "/base/data/home/apps/s~ldsdgidev/glen27.371429613087607751/core/photo_images.py", line 1, in
from core.db_models import ImagesDB
File "/base/data/home/apps/s~ldsdgidev/glen27.371429613087607751/core/db_models.py", line 222, in
class UsersQuickAddForm(forms.ModelForm):#only account, firstname and last name is required
File "/base/data/home/apps/s~ldsdgidev/glen27.371429613087607751/django/forms/models.py", line 205, in new
opts.exclude, opts.widgets, formfield_callback)
File "/base/data/home/apps/s~ldsdgidev/glen27.371429613087607751/django/forms/models.py", line 145, in fields_for_model
opts = model._meta
AttributeError: type object 'UsersDB' has no attribute '_meta'
and I don't understand what I need to add to the UserDB class to get rid of the error.
Any help would be great!
This isn't anything to do with Python versions, or metaclasses.
ModelForms only work with Django models. db.Model is the App Engine model class, not the Django one. You can't use a modelform with that class.
You mention django-nonrel in your question tags. That project allows you to use the Django models - subclasses of models.Model with the App Engine datastore. You probably want to do that.
I am trying to use python-twitter api in GAE.
I need to import Oauth2 and httplib2.
Here is how I did
For OAuth2, I downloaded github.com/simplegeo/python-oauth2/tree/master/oauth2. For HTTPLib2, I dowloaded code.google.com/p/httplib2/wiki/Install and extracted folder python2/httplib2 to project root folder.
my views.py
import twitter
def index(request):
api = twitter.Api(consumer_key='XNAUYmsmono4gs3LP4T6Pw',consumer_secret='xxxxx',access_token_key='xxxxx',access_token_secret='iHzMkC6RRDipon1kYQtE5QOAYa1bVfYMhH7GFmMFjg',cache=None)
return render_to_response('fbtwitter/index.html')
I got the error paste.shehas.net/show/jbXyx2MSJrpjt7LR2Ksc
AttributeError
AttributeError: 'module' object has no attribute 'SignatureMethod_PLAINTEXT'
Traceback (most recent call last)
File "D:\PythonProj\fbtwitter\kay\lib\werkzeug\wsgi.py", line 471, in __call__
return app(environ, start_response)
File "D:\PythonProj\fbtwitter\kay\app.py", line 478, in __call__
response = self.get_response(request)
File "D:\PythonProj\fbtwitter\kay\app.py", line 405, in get_response
return self.handle_uncaught_exception(request, exc_info)
File "D:\PythonProj\fbtwitter\kay\app.py", line 371, in get_response
response = view_func(request, **values)
File "D:\PythonProj\fbtwitter\fbtwitter\views.py", line 39, in index
access_token_secret='iHzMkC6RRDipon1kYQtE5QOAYa1bVfYMhH7GFmMFjg',cache=None)
File "D:\PythonProj\fbtwitter\fbtwitter\twitter.py", line 2235, in __init__
self.SetCredentials(consumer_key, consumer_secret, access_token_key, access_token_secret)
File "D:\PythonProj\fbtwitter\fbtwitter\twitter.py", line 2264, in SetCredentials
self._signature_method_plaintext = oauth.SignatureMethod_PLAINTEXT()
AttributeError: 'module' object has no attribute 'SignatureMethod_PLAINTEXT'
It seems I did not import Oauth2 correctly when I tracked the error in twitter.py
self._signature_method_plaintext = oauth.SignatureMethod_PLAINTEXT()
I even go to twitter.py and add import oauth2 as oauth but it couldnt solve the problem
Can anybody help?
I fixed it. In twitter.py,
try:
from hashlib import md5
except ImportError:
from md5 import md5
import oauth
CHARACTER_LIMIT = 140
# A singleton representing a lazily instantiated FileCache.
DEFAULT_CACHE = object()
REQUEST_TOKEN_URL = 'https://api.twitter.com/oauth/request_token'
ACCESS_TOKEN_URL = 'https://api.twitter.com/oauth/access_token'
AUTHORIZATION_URL = 'https://api.twitter.com/oauth/authorize'
SIGNIN_URL = 'https://api.twitter.com/oauth/authenticate'
Need to change import oauth to import oauth2 as oauth
I'm using tweetpy with my GAE application and it works well.
https://github.com/tweepy/tweepy
You can find some sample codes of tweetpy on GAE in google search.