Hello,
Sorry I know there seems to be a lot about this topic. But I do not see a real resolution?
I am trying to place a Django ecommerce pizza shop for learning Django on the website. Locally this works great no issues. I matched my environment locally to that on the ENV for the server. I got this issue resolved locally when I updated Cairo on my computer. So the emulated server works great.
Python 3.8.0
Here is the error and follow on info.
Error from error log on ther server. 2021-05-28 16:13:41,156: /home/williamc1jones/.virtualenvs/myvirtualenv/lib/python3.8/site-packages/weasyprint/document.py:35: UserWarning: There are known rendering problems and missing features with cairo < 1.15.4. WeasyPrint may work with older versions, but please read the note about the needed cairo version on the "Install" page of the documentation before reporting bugs. http://weasyprint.readthedocs.io/en/latest/install.html
views.py file in order app
import weasyprint
from django.urls import reverse
from django.shortcuts import render, redirect
from django.contrib.admin.views.decorators import staff_member_required
from django.shortcuts import get_object_or_404
from django.conf import settings
from django.http import HttpResponse
from django.template.loader import render_to_string
from cart.cart import Cart
from .models import OrderItem, Order
from .forms import OrderCreateForm
from .tasks import order_created
def order_create(request):
cart = Cart(request)
if request.method == 'POST':
form = OrderCreateForm(request.POST)
if form.is_valid():
order = form.save()
for item in cart:
OrderItem.objects.create(order=order,
product=item['product'],
price=item['price'],
quantity=item['quantity'])
# clear the cart
cart.clear()
# launch asynchronous task
order_created.delay(order.id)
# set the order in the session
request.session['order_id'] = order.id
# redirect for payment
return redirect(reverse('payment:process'))
else:
form = OrderCreateForm()
return render(request,
'orders/order/create.html',
{'cart': cart, 'form': form})
@staff_member_required
def admin_order_detail(request, order_id):
order = get_object_or_404(Order, id=order_id)
return render(request,
'admin/orders/order/detail.html',
{'order': order})
@staff_member_required
def admin_order_pdf(request, order_id):
order = get_object_or_404(Order, id=order_id)
html = render_to_string('orders/order/pdf.html',
{'order': order})
response = HttpResponse(content_type='application/pdf')
response['Content-Disposition'] = f'filename=order_{order.id}.pdf'
weasyprint.HTML(string=html).write_pdf(response,
stylesheets=[weasyprint.CSS(
settings.STATIC_ROOT + 'css/pdf.css')])
return response
A pip freeze shot of the env
-f /usr/share/pip-wheels
amqp==2.6.1
appdirs==1.4.4
billiard==3.6.4.0
braintree==3.59.0
cairocffi==1.2.0
CairoSVG==2.5.2
celery==4.4.2
certifi==2020.12.5
cffi==1.14.5
chardet==4.0.0
click==8.0.1
cssselect2==0.4.1
defusedxml==0.7.1
distlib==0.3.1
Django==2.1.15
django-pyodbc-azure-2019==2.1.0.0
filelock==3.0.12
Flask==2.0.1
Flask-WeasyPrint==0.6
html5lib==1.1
idna==2.10
itsdangerous==2.0.1
Jinja2==3.0.1
kombu==4.6.11
MarkupSafe==2.0.1
pbr==5.5.1
pdfrw==0.4
Pillow==8.2.0
pycparser==2.20
pyodbc==4.0.30
Pyphen==0.10.0
pyth==0.6.0
pytz==2021.1
requests==2.25.1
six==1.15.0
stevedore==3.3.0
tinycss2==1.1.0
urllib3==1.26.4
vine==1.3.0
virtualenv==20.4.4
virtualenv-clone==0.5.4
virtualenvwrapper==4.8.4
wcwidth==0.2.5
WeasyPrint==52
webencodings==0.5.1
Werkzeug==2.0.1
whitenoise==5.2.0
My website is tested at http://williamc1jones.pythonanywhere.com/