I have a python program that uses django and it generates the error django.template.exceptions.TemplateDoesNotExist. I made a sample of code to illustrate my problem. I created two files a test_file.py and HelloTemplate.txt, located in the same directory C:\Games\Game1.
#file name: test_file.py
from django.template.loader import get_template
from django.conf import settings
settings.configure(DEBUG=True,TEMPLATE_DIRS=('.', ))
#I also tried TEMPLATE_DIRS=('C:\Games\Game1', ), didn't solve the problem
import sys
def main():
myTemplate = get_template("HelloTemplate.txt")
if __name__ == '__main__':
main()
The second file is a txt file with a line Hello as fellow:
filename: HelloTemplate.txt
Hello Template
Here's the error that I got
Traceback (most recent call last):
File "test_file.py", line 17, in <module>
main()
File "test_file.py", line 13, in main
myTemplate = get_template("HelloTemplate.txt")
File "C:\WinPython-32bit-2.7.5.3\python-2.7.5\lib\site-packages\django\template\loader.py", line 25, in get_template
raise TemplateDoesNotExist(template_name, chain=chain)
django.template.exceptions.TemplateDoesNotExist: HelloTemplate.txt
Thanks for your help to fix this error.
I guess get_template searches the file's concrete path which you define in the django project settings.py.
Related
This is my Python code:
from plugin import Plugin
import logging
import yaml
log = logging.getLogger('discord')
def get_bot_prefix():
with open('HarTex/hartexConfig.yaml', 'r') as prefixReader:
prefixValue = yaml.safe_load(prefixReader)
prefixString = prefixValue['settings']['prefix']
return prefixString
prefix = get_bot_prefix()
However I got an error with the file accessing:
Traceback (most recent call last):
File "C:/Users/85251/Documents/Discord Bots/Python/HarTex/bot.py", line 20, in <module>
from plugins.help import Help
File "C:\Users\85251\Documents\Discord Bots\Python\HarTex\plugins\help.py", line 30, in <module>
prefix = get_bot_prefix()
File "C:\Users\85251\Documents\Discord Bots\Python\HarTex\plugins\help.py", line 22, in get_bot_prefix
with open('HarTex/hartexConfig.yaml', 'r') as prefixReader:
FileNotFoundError: [Errno 2] No such file or directory: 'HarTex/hartexConfig.yaml'
How can I fix it? Or am I completely wrong with the directory?
The script should work if you are calling it from the parent directory of HarTex, maybe you are running it from a different working directory?
You could also try to open the file using the full path, as this is probably easy to check.
Error is very clear.You should use absolute path instead of relative path.
For an example home/Prakash/Desktop/test12/test.yaml
Your code definitely work,Once you will change path like this.
Trying to use django templates in stand-alone mode.
I get these exceptions (below).
New to python, wondering if anyone would be willing to help out.
Django is used for templating in a script which is not shown here.
However the exact same exceptions appear when launching it.
>>> from django.template import Template, Context
>>> from django.conf import settings
>>> settings.configure()
>>> t = Template('My name is {{ my_name }}.')
Traceback (most recent call last):
File "/usr/local/lib/python3.4/dist-packages/django/template/utils.py", line 86, in __getitem__
return self._engines[alias]
KeyError: 'django'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/local/lib/python3.4/dist-packages/django/template/base.py", line 182, in __init__
engine = Engine.get_default()
File "/usr/lib/python3.4/functools.py", line 472, in wrapper
result = user_function(*args, **kwds)
File "/usr/local/lib/python3.4/dist-packages/django/template/engine.py", line 88, in get_default
django_engines = [engine for engine in engines.all()
File "/usr/local/lib/python3.4/dist-packages/django/template/utils.py", line 110, in all
return [self[alias] for alias in self]
....
....
File "/usr/local/lib/python3.4/dist-packages/django/apps/registry.py", line 137, in get_app_configs
self.check_apps_ready()
File "/usr/local/lib/python3.4/dist-packages/django/apps/registry.py", line 124, in check_apps_ready
raise AppRegistryNotReady("Apps aren't loaded yet.")
django.core.exceptions.AppRegistryNotReady: Apps aren't loaded yet.
My django version:
python3 -c "import django; print(django.get_version())" ---> 1.9.7
My python version:
Python 3.4.3
After calling settings.configure(), you must call django.setup().
import django
from django.conf import settings
settings.configure()
django.setup()
from django.template import Template, Context
t = Template('My name is {{ my_name }}.')
c=Context({'my_name': 'Mindaugas'})
t.render(c)
See the docs for more info.
I am trying to follow below tutorial but I am facing few issue, when i run manage.py. Any help could be great help.
http://docs.mongodb.org/ecosystem/tutorial/write-a-tumblelog-application-with-flask-mongoengine/#id1
manage.py run output:
(Tumbler)afiz Tumbler $ python manage.py
Traceback (most recent call last):
File "manage.py", line 6, in <module>
from tumblelog import app
File "/home/afiz/.virtualenvs/tumblelog/__init__.py", line 18, in <module>
register_blueprints(app)
File "/home/afiz/.virtualenvs/tumblelog/__init__.py", line 13, in register_blueprints
from tumblelog.views import posts
File "/home/afiz/.virtualenvs/tumblelog/views.py", line 5, in <module>
from tumblelog.models import Post, Comment
File "/home/afiz/.virtualenvs/tumblelog/models.py", line 6, in <module>
class Post(db.DynamicDocument):
File "/home/afiz/.virtualenvs/Tumbler/local/lib/python2.7/site-packages/mongoengine/base/metaclasses.py", line 361, in __new__
meta['index_specs'] = new_class._build_index_specs(meta['indexes'])
File "/home/afiz/.virtualenvs/Tumbler/local/lib/python2.7/site-packages/mongoengine/base/document.py", line 722, in _build_index_specs
unique_indices = cls._unique_with_indexes()
File "/home/afiz/.virtualenvs/Tumbler/local/lib/python2.7/site-packages/mongoengine/base/document.py", line 861, in _unique_with_indexes
field.document_type != cls):
File "/home/afiz/.virtualenvs/Tumbler/local/lib/python2.7/site-packages/mongoengine/fields.py", line 563, in document_type
self.document_type_obj = get_document(self.document_type_obj)
File "/home/afiz/.virtualenvs/Tumbler/local/lib/python2.7/site-packages/mongoengine/base/common.py", line 25, in get_document
""".strip() % name)
mongoengine.errors.NotRegistered: `Comment` has not been registered in the document registry.
Importing the document class automatically registers it, has it
been imported?
manage.py file:
#set the path
import os, sys
sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__), '..')))
from flask.ext.script import Manager, Server
from tumblelog import app
manager = Manager(app)
# Turn on debugger by default and reloader
manager.add_command("runserver", Server(
use_debugger = True,
use_reloader = True,
host = '0.0.0.0')
)
if __name__ == "__main__":
manager.run()
I had the same problem as you are facing now. In models.py file I just wrote
class Comment(db.EmbeddedDocument):
and it's content first then added
class Post(db.Document):
and then it's content. In other words, I first wrote Comment class then Post class and problem got solved ;) :) Cheers!!
Inside Post, when EmbeddedDocumentField is assigned to a variable, it needs to be pre-registered. Therefore, always register such field i.e. Comments before they are used.
I am currently developing wep.py application. This is my web application which is binded with web.py and wsgi.
root/main.py
import web
import sys
import imp
import os
sys.path.append(os.path.dirname(__file__))
#from module import module
from exam import exam
urls = (
'/exam', 'exam'
)
application = web.application(urls, globals(), autoreload = True).wsgifunc()
My application has an abstract class called module in module.py in root directory and its purpose is to be inherited by modules.
root/module.py
class module:
def fetchURL(self, url):
# ...
return content
The lower level module called "exam" would inherits module
root/exam/init.py
from module import module
class exam(module):
def getResults(self):
# error occurs here
self.fetchURL('math.json')
When I call the parent method, web.py raises an exception
WalkerError: ('unexpected node type', 339)
Environment: Python 2.5
How can I resolve the problem? Thanks
// EDIT 03 July 10:22 GMT+0
The stack trace is as follows
mod_wsgi (pid=1028): Exception occurred processing WSGI script 'D:/py/labs_library/index.py'.
Traceback (most recent call last):
File "D:\csvn\Python25\lib\site-packages\web\application.py", line 277, in wsgi
result = self.handle_with_processors()
File "D:\csvn\Python25\lib\site-packages\web\application.py", line 247, in handle_with_processors
return process(self.processors)
File "D:\csvn\Python25\lib\site-packages\web\application.py", line 244, in process
raise self.internalerror()
File "D:\csvn\Python25\lib\site-packages\web\application.py", line 467, in internalerror
return debugerror.debugerror()
File "D:\csvn\Python25\lib\site-packages\web\debugerror.py", line 305, in debugerror
return web._InternalError(djangoerror())
File "D:\csvn\Python25\lib\site-packages\web\debugerror.py", line 290, in djangoerror
djangoerror_r = Template(djangoerror_t, filename=__file__, filter=websafe)
File "D:\csvn\Python25\lib\site-packages\web\template.py", line 845, in __init__
code = self.compile_template(text, filename)
File "D:\csvn\Python25\lib\site-packages\web\template.py", line 924, in compile_template
ast = compiler.parse(code)
File "D:\csvn\Python25\lib\compiler\transformer.py", line 51, in parse
return Transformer().parsesuite(buf)
File "D:\csvn\Python25\lib\compiler\transformer.py", line 128, in parsesuite
return self.transform(parser.suite(text))
File "D:\csvn\Python25\lib\compiler\transformer.py", line 124, in transform
return self.compile_node(tree)
File "D:\csvn\Python25\lib\compiler\transformer.py", line 167, in compile_node
raise WalkerError, ('unexpected node type', n)
WalkerError: ('unexpected node type', 339)
If it is possible I would like to turn off the template functionality as I use python only for JSON output for mobile app.
if you create python module you should add __init__.py in top of your hierarchy:
dvedit/
__init__.py
clipview.py
filters/
__init__.py
it means that in every directory which will be imported via from ... import ... should have __init__.py file.
further info available: http://wiki.cython.org/PackageHierarchy
I'm trying to queue up some build requests in a DB during a changegroup hook. The DB table is managed by a Django app. So, in the hook, I want to use the Django model to submit the build request. However, I'm unable to get my settings right to import the model successfully.
Based on this (https://docs.djangoproject.com/en/1.3/ref/django-admin/) info, all I need to do is add my django site to the sys path, and set the DJANGO_SETTINGS_MODULE. The django site lives in /opt/mysite, so - trying this from the python console:
>>> import sys
>>> import os
>>> sys.path.append('/opt')
>>> os.environ['DJANGO_SETTINGS_MODULE'] = 'mysite.settings'
>>> from mysite.myapp.models import Build
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/opt/mysite/myapp/models.py", line 1, in <module>
from django.db import models
File "/usr/lib/pymodules/python2.7/django/db/__init__.py", line 78, in <module>
connection = connections[DEFAULT_DB_ALIAS]
File "/usr/lib/pymodules/python2.7/django/db/utils.py", line 93, in __getitem__
backend = load_backend(db['ENGINE'])
File "/usr/lib/pymodules/python2.7/django/db/utils.py", line 33, in load_backend
return import_module('.base', backend_name)
File "/usr/lib/pymodules/python2.7/django/utils/importlib.py", line 35, in import_module
__import__(name)
File "/usr/lib/pymodules/python2.7/django/db/backends/mysql/base.py", line 28, in <module>
from django.db import utils
ImportError: cannot import name utils
>>>
Second Attempt:
Based on this (http://www.b-list.org/weblog/2007/sep/22/standalone-django-scripts/) I can use setup_environ(), when I try this in the python shell, it works:
>>> import sys
>>> sys.path.append('/opt')
>>> from django.core.management import setup_environ
>>> from mysite import settings
>>> setup_environ(settings)
'/opt/mysite'
>>> from mysite.myapp.models import Build
>>> Build.objects.all()
[<Build: #1 F nkj sdfsdfsdfs43qg test_branch>, <Build: #2 F nkj sdfsdfsdfs43qg test_branch>, <Build: #13 Q >, <Build: #14 Q nkj_bug243>, <Build: #11 F nkj 444hwe45hedrrt nkj_bug272>, <Build: #12 F nkj sdfsdfsdfs43qg test_branch>]
However, when I try this in my Mercurial hook, I get blasted with errors the minute I try to import my Build model:
#!/usr/bin/env python
import sys
path = '/opt'
if path not in sys.path:
sys.path.append(path)
from django.core.management import setup_environ
from mysite import settings
setup_environ(settings)
from mysite.myapp.models import Build
import datetime
... do stuff ...
When it gets to the 'from mysite.myapp.models import Build' line I get the following error output:
** unknown exception encountered, please report by visiting
** http://mercurial.selenic.com/wiki/BugTracker
** Python 2.7.2+ (default, Oct 4 2011, 20:06:09) [GCC 4.6.1]
** Mercurial Distributed SCM (version 1.9.1)
** Extensions loaded:
Traceback (most recent call last):
File "/usr/bin/hg", line 38, in <module>
mercurial.dispatch.run()
File "/usr/lib/python2.7/dist-packages/mercurial/dispatch.py", line 27, in run
sys.exit(dispatch(request(sys.argv[1:])))
File "/usr/lib/python2.7/dist-packages/mercurial/dispatch.py", line 64, in dispatch
return _runcatch(req)
File "/usr/lib/python2.7/dist-packages/mercurial/dispatch.py", line 87, in _runcatch
return _dispatch(req)
File "/usr/lib/python2.7/dist-packages/mercurial/dispatch.py", line 679, in _dispatch
cmdpats, cmdoptions)
File "/usr/lib/python2.7/dist-packages/mercurial/dispatch.py", line 454, in runcommand
ret = _runcommand(ui, options, cmd, d)
File "/usr/lib/python2.7/dist-packages/mercurial/dispatch.py", line 733, in _runcommand
return checkargs()
File "/usr/lib/python2.7/dist-packages/mercurial/dispatch.py", line 687, in checkargs
return cmdfunc()
File "/usr/lib/python2.7/dist-packages/mercurial/dispatch.py", line 676, in <lambda>
d = lambda: util.checksignature(func)(ui, *args, **cmdoptions)
File "/usr/lib/python2.7/dist-packages/mercurial/util.py", line 385, in check
return func(*args, **kwargs)
File "/usr/lib/python2.7/dist-packages/mercurial/commands.py", line 3884, in push
newbranch=opts.get('new_branch'))
File "/usr/lib/python2.7/dist-packages/mercurial/localrepo.py", line 1428, in push
lock=lock)
File "/usr/lib/python2.7/dist-packages/mercurial/localrepo.py", line 1849, in addchangegroup
source=srctype, url=url)
File "/usr/lib/python2.7/dist-packages/mercurial/localrepo.py", line 224, in hook
return hook.hook(self.ui, self, name, throw, **args)
File "/usr/lib/python2.7/dist-packages/mercurial/hook.py", line 160, in hook
mod = extensions.loadpath(path, 'hghook.%s' % hname)
File "/usr/lib/python2.7/dist-packages/mercurial/extensions.py", line 45, in loadpath
return imp.load_source(module_name, path)
File "/opt/unapse/belvedere/mercurial_hook.py", line 14, in <module>
from unapse.belvedere.models import Build
File "/usr/lib/python2.7/dist-packages/mercurial/demandimport.py", line 109, in _demandimport
mod = _origimport(name, globals, locals)
File "/opt/unapse/belvedere/models.py", line 1, in <module>
from django.db import models
File "/usr/lib/python2.7/dist-packages/mercurial/demandimport.py", line 109, in _demandimport
mod = _origimport(name, globals, locals)
File "/usr/lib/pymodules/python2.7/django/db/__init__.py", line 14, in <module>
if not settings.DATABASES:
File "/usr/lib/pymodules/python2.7/django/utils/functional.py", line 276, in __getattr__
self._setup()
File "/usr/lib/pymodules/python2.7/django/conf/__init__.py", line 42, in _setup
self._wrapped = Settings(settings_module)
File "/usr/lib/pymodules/python2.7/django/conf/__init__.py", line 139, in __init__
logging_config_func(self.LOGGING)
File "/usr/lib/python2.7/logging/config.py", line 776, in dictConfig
dictConfigClass(config).configure()
File "/usr/lib/python2.7/logging/config.py", line 575, in configure
'%r: %s' % (name, e))
ValueError: Unable to configure handler 'mail_admins': __import__() argument 1 must be string, not DictConfigurator
Any ideas as to what could be causing this problem?
The DictConfigurator error is a bug in python, hopefully fixed in the next 2.7 release (http://bugs.python.org/issue12718), something (probably mercurial) is overriding import and python's logging code fails in that case.
Until then here is what I did to fix it. Copy dictconfig.py from django/utils to somewhere in your python system path (I put it alongside my hook). Change the line
importer = __import__
to:
def importer(self, *args):
return __import(*args)__
And then in settings.py for your django project add to the end:
LOGGING_CONFIG = 'website.dictconfig.dictConfig'
Update website.dictconfig to whatever path you put the dictconfig file into so python can find it.
UPDATE: I think there is an even easier way. Add this to the top of your hook script, before importing anything else:
from mercurial import demandimport;
demandimport.disable()
This makes Mercurial revert the import override and seems to solve the problem cleanly.
If you're running with your environment in a virtualenv dir you'll need to add that to the site packages and I'd also suggest that you put the django dir at the front of sys.path instead of the end.
Here's the code we use to integrate our Django app into other python apps.
import os
import sys
# point this at the virtualenv dir that your django deployment runs out of
# you are using virtualenv. right?
DJANGO_ENV = '/home/core/python-envs/production'
# where your code lives (ie where settings.py is)
DJANGO_DIR = '/home/core/code/production'
# add our site packages
import site
site_packages = os.path.join(DJANGO_ENV, 'lib', 'python%s' % sys.version[:3], 'site-packages')
site.addsitedir(site_packages)
# put the main Django directory on first
sys.path.insert(0, DJANGO_DIR)
# setup the Django environment pointing to our settings
import settings
import django.core.management
django.core.management.setup_environ(settings)
# finally, import our objects
from yourapp.models import YourModel
One last thing to note is that when we import our code into some applications we've run into scoping issues and imports clashing. To get around it we wrap the work we want to do in a function so that it gets its own scope.
For example, instead of:
from yourapp.models import YourModel
objs = YourModel.objects.filter(something=True)
...
Do something like:
def do_work():
from yourapp.models import YourModel
objs = YourModel.objects.filter(something=True)
...
do_work()