Bump version to 0.11

Null values in the signature data will cause the compute box calculation to fail. Filter them out during json.loads

.github/workflows/actions.yml

@@ -0,0 +1,66 @@
+name: Run Tests
+
+on: [ push, pull_request ]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        django_version:
+          - '2.2'
+          - '3.2'
+          - '4.0'
+        python-version:
+          - 3.6
+          - 3.7
+          - 3.8
+          - 3.9
+          - "3.10"
+        exclude:
+          - django_version: '2.2'
+            python-version: '3.10'
+
+          - django_version: '4.0'
+            python-version: '3.6'
+
+          - django_version: '4.0'
+            python-version: '3.7'
+
+    env:
+      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Cache pip
+        uses: actions/cache@v2
+        with:
+          # This path is specific to Ubuntu
+          path: ~/.cache/pip
+          key: ${{ runner.os }}-pip-${{ matrix.python-version }}-${{ matrix.django_version }}
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -e .
+          pip install -U flake8 coveralls argparse
+          pip install -U Django~=${{ matrix.django_version }}
+
+      - name: Lint with flake8
+        run: flake8 --ignore=E501,W504 jsignature
+
+      - name: Test Django
+        run: |
+          python -W error::DeprecationWarning -W error::PendingDeprecationWarning \
+            -m coverage run ./runtests.py
+
+      - name: Coverage
+        if: ${{ success() }}
+        run: |
+          coveralls --service=github

.gitignore

@@ -4,3 +4,5 @@ htmlcov
 *.egg-info
 .tox
 example.db
+/dist
+/build

.travis.yml

@@ -1,46 +0,0 @@
-language: python
-
-matrix:
-  fast_finish: true
-  allow_failures:
-    - env: DJANGO=master
-  include:
-    - python: 2.7
-      env: DJANGO=1.11
-
-    - python: 3.5
-      env: DJANGO=1.11
-    - python: 3.5
-      env: DJANGO=2.2
-
-    - python: 3.6
-      env: DJANGO=1.11
-    - python: 3.6
-      env: DJANGO=2.2
-    - python: 3.6
-      env: DJANGO=3.0
-    - python: 3.6
-      env: DJANGO=master
-
-    - python: 3.7
-      env: DJANGO=2.2
-    - python: 3.7
-      env: DJANGO=3.0
-    - python: 3.7
-      env: DJANGO=master
-
-
-    - python: 3.8
-      env: DJANGO=2.2
-    - python: 3.8
-      env: DJANGO=3.0
-    - python: 3.8
-      env: DJANGO=master
-
-install:
-  - pip install tox tox-travis
-script:
-  - tox
-after_success:
-  - pip install coveralls
-  - coveralls

CHANGES

@@ -2,6 +2,27 @@
 CHANGELOG
 =========
 
+0.11 (2022-01-17)
+==================
+
+** New **
+
+- Django 4.0 compatibility.
+- Moved to Github Actions for testing.
+- Added flake8 in CI.
+- Dropped support for python < 3.6
+- Dropped support for Django 1.11, 2.0, 2.1, 3.0, 3.1.
+
+
+0.10 (2020-07-26)
+==================
+
+** New **
+
+- Add template filter to easily render a signature structure as base64 url.
+- Add a full example of front-office usage.
+
+
 0.9 (2020-04-18)
 ==================
 

README.rst

@@ -5,6 +5,7 @@ It provides:
 * A form field and a form widget to handle jquery plugin through a Django form;
 * A model field to store a captured signature;
 * A mixin adding two fields (signature / signature_date) in any of your Django models.
+* A template filter to render signatures as base64 image urls.
 
 .. image:: https://img.shields.io/pypi/v/django-jsignature.svg
     :target: https://pypi.python.org/pypi/django-jsignature/
@@ -21,17 +22,15 @@ It provides:
 .. image:: https://github.com/fle/django-jsignature/blob/master/screen.png
 
 ==================
-INSTALL
+Installation
 ==================
 
-For now:
-
 ::
 
     pip install django-jsignature
 
 ==================
-USAGE
+Usage
 ==================
 
 * Add ``jsignature`` to your ``INSTALLED_APPS``:
@@ -44,48 +43,37 @@ USAGE
         'jsignature',
     )
 
-* Use provided form field and widget:
+* Use provided model field (for easy storage):
 
 ::
 
-    # forms.py
-    from django import forms
-    from jsignature.forms import JSignatureField
+    # models.py
+    from django.db import models
+    from jsignature.fields import JSignatureField
 
-    class SignatureForm(forms.Form):
+    class SignatureModel(models.Model):
         signature = JSignatureField()
 
-* In your template
+* In your form template
 
 ::
 
     {{ form.media }}
-    <form action="." method="POST">
-        {% for field in form %}
-            {{ field.label_tag }}
-            {{ field }}
-        {% endfor %}
-        <input type="submit" value="Save"/>
+    <form action="" method="post">
+        {{ form }}
+        <input type="submit" value="Save" />
         {% csrf_token %}
     </form>
 
-* Render image after form validation:
+* Render image from db value in your display template:
 
 ::
 
-    # views.py
-    from jsignature.utils import draw_signature
-    from myapp.forms import SignatureForm
+    {# yourtemplate.html #}
+    {% load jsignature_filters %}
+
+    <img src="{{ obj.signature|signature_base64 }}" alt="{{ obj }}" />
 
-    def my_view(request):
-        form = SignatureForm(request.POST or None)
-        if form.is_valid():
-            signature = form.cleaned_data.get('signature')
-            if signature:
-                # as an image
-                signature_picture = draw_signature(signature)
-                # or as a file
-                signature_file_path = draw_signature(signature, as_file=True)
 
 *   By default, jSignature is made to work outside of admin, requiring that
     you include the jQuery library in your ``<head>``.
@@ -94,8 +82,11 @@ USAGE
     ``JSIGNATURE_JQUERY`` setting to ``admin``. Otherwise if set to any url
     pointing to jQuery, it will be automatically included.
 
+    It is strongly suggested to take example from ``example_project``, which is
+    `located in this repo <https://github.com/fle/django-jsignature/tree/master/example_project>`_
+
 ==================
-CUSTOMIZATION
+Customization
 ==================
 
 JSignature plugin options are available in python:
@@ -130,10 +121,11 @@ Available settings are:
 * ``JSIGNATURE_RESET_BUTTON`` (ResetButton)
 
 ==================
-IN YOUR MODELS
+In your models
 ==================
 
-If you want to store signatures, provided mixin gives a ``signature`` and a ``signature_date`` that update themselves:
+If you want to store signatures easily, a provided mixin gives a ``signature``
+and a ``signature_date`` that update themselves:
 
 ::
 
@@ -144,6 +136,41 @@ If you want to store signatures, provided mixin gives a ``signature`` and a ``si
         name = models.CharField()
 
 
+==================
+In your forms
+==================
+
+* If you need more precise handling of the form field, you can use it directly:
+
+::
+
+    # forms.py
+    from django import forms
+    from jsignature.forms import JSignatureField
+
+    class SignatureForm(forms.Form):
+        signature = JSignatureField()
+
+
+* And upon saving, have direct access to the image with ``draw_signature()``
+
+::
+
+    # views.py
+    from jsignature.utils import draw_signature
+    from myapp.forms import SignatureForm
+
+    def my_view(request):
+        form = SignatureForm(request.POST or None)
+        if form.is_valid():
+            signature = form.cleaned_data.get('signature')
+            if signature:
+                # as an image
+                signature_picture = draw_signature(signature)
+                # or as a file
+                signature_file_path = draw_signature(signature, as_file=True)
+
+
 ==================
 Example project
 ==================
@@ -162,16 +189,17 @@ If you want to have a demo of this package, just use the example project:
     ./manage.py migrate
     ./manage.py createsuperuser
 
-Fill the user info, launch django with ``./manage.py runserver`` and head over to
-`http://127.0.0.1:8000/ <http://127.0.0.1:8000/>`_ and login with the
-credentials your provided.
+Fill the user info, launch django with ``./manage.py runserver`` and head over
+to `http://127.0.0.1:8000/ <http://127.0.0.1:8000/>`_, you can also
+`login to the admin <http://127.0.0.1:8000/admin>`_ with the credentials your
+provided.
 
 ==================
-AUTHORS
+Authors
 ==================
 
-    * Florent Lebreton <florent.lebreton@makina-corpus.com>
-    * Sébastien Corbin <sebastien.corbin@makina-corpus.com>
+    * Florent Lebreton <florent.lebreton@makina-corpus.com> (original author)
+    * Sébastien Corbin <sebastien.corbin@makina-corpus.com> (maintainer)
 
 |makinacom|_
 

example_project/templates/base.html

@@ -0,0 +1,39 @@
+<!doctype html>
+<html lang="en">
+<head>
+  <!-- Required meta tags -->
+  <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
+
+  <!-- Bootstrap CSS -->
+  <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
+
+  <title>Example project</title>
+</head>
+<body>
+<nav class="navbar navbar-expand-lg navbar-light bg-light">
+  <div class="container">
+    <ul class="navbar-nav">
+      <li class="nav-item">
+        <a class="nav-link" href="{% url 'admin:index' %}">Admnistration</a>
+      </li>
+      <li class="nav-item">
+        <a class="nav-link" href="{% url 'list' %}">List</a>
+      </li>
+      <li class="nav-item">
+        <a class="nav-link" href="{% url 'create' %}">Create</a>
+      </li>
+    </ul>
+  </div>
+</nav>
+
+<div class="container">
+    {% block content %}{% endblock %}
+  </div>
+
+  <script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js" integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous"></script>
+  <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous"></script>
+  {% block extra_media %}{% endblock %}
+</body>
+</html>

example_project/templates/example_project/examplemodel_form.html

@@ -0,0 +1,14 @@
+{% extends "base.html" %}
+
+{% block extra_media %}
+  {{ form.media }}
+{% endblock %}
+
+{% block content %}
+  <form action="" method="post">
+    {{ form }}
+    <input type="submit" value="Save" class="btn btn-success" />
+    <a href="{% url 'list' %}" class="btn btn-danger">Cancel</a>
+    {% csrf_token %}
+  </form>
+{% endblock %}

example_project/templates/example_project/examplemodel_list.html

@@ -0,0 +1,24 @@
+{% extends "base.html" %}{% load jsignature_filters %}
+
+{% block content %}
+  <h1>List</h1>
+
+  <ul>
+    {% for obj in object_list %}
+      <li>
+        <dl>
+          <dt>Raw data (from db)</dt>
+          <dd>{{ obj.signature }}</dd>
+          <dt>As image</dt>
+          <dd>
+            <img src="{{ obj.signature|signature_base64 }}" alt="{{ obj }}" />
+            <a href="{% url 'update' obj.pk %}" class="btn btn-primary">
+              Update
+            </a>
+          </dd>
+        </dl>
+      </li>
+    {% endfor %}
+  </ul>
+  <a href="{% url 'create' %}" class="btn btn-primary">Create</a>
+{% endblock %}

example_project/urls.py

@@ -3,6 +3,11 @@ from __future__ import unicode_literals
 from django.contrib import admin
 from django.urls import path
 
+from example_project import views
+
 urlpatterns = [
-    path('', admin.site.urls),
+    path('', views.ExampleListView.as_view(), name='list'),
+    path('create', views.ExampleCreateView.as_view(), name='create'),
+    path('update/<int:pk>', views.ExampleUpdateView.as_view(), name='update'),
+    path('admin', admin.site.urls),
 ]

example_project/views.py

@@ -0,0 +1,20 @@
+from django.urls import reverse_lazy
+from django.views import generic
+
+from example_project.models import ExampleModel
+
+
+class ExampleCreateView(generic.CreateView):
+    model = ExampleModel
+    fields = '__all__'
+    success_url = reverse_lazy('list')
+
+
+class ExampleUpdateView(generic.UpdateView):
+    model = ExampleModel
+    fields = '__all__'
+    success_url = reverse_lazy('list')
+
+
+class ExampleListView(generic.ListView):
+    model = ExampleModel

jsignature/forms.py

@@ -18,13 +18,13 @@ class JSignatureField(Field):
     widget = JSignatureWidget()
 
     def to_python(self, value):
-            """
-            Validates that the input can be red as a JSON object.
-            Returns a Python list (JSON object unserialized).
-            """
-            if value in JSIGNATURE_EMPTY_VALUES:
-                return None
-            try:
-                return json.loads(value)
-            except ValueError:
-                raise ValidationError('Invalid JSON format.')
+        """
+        Validates that the input can be red as a JSON object.
+        Returns a Python list (JSON object unserialized).
+        """
+        if value in JSIGNATURE_EMPTY_VALUES:
+            return None
+        try:
+            return json.loads(value)
+        except ValueError:
+            raise ValidationError('Invalid JSON format.')

jsignature/mixins.py

@@ -5,7 +5,7 @@
 import json
 from datetime import datetime
 from django.db import models
-from django.utils.translation import ugettext_lazy as _
+from django.utils.translation import gettext_lazy as _
 from .fields import JSignatureField
 
 

jsignature/templatetags/jsignature_filters.py

@@ -0,0 +1,21 @@
+import base64
+import io
+
+from django import template
+from django.utils.encoding import iri_to_uri
+
+from jsignature.utils import draw_signature
+
+register = template.Library()
+
+
+@register.filter
+def signature_base64(value):
+    if value is None or not isinstance(value, str):
+        return ""
+    in_mem_file = io.BytesIO()
+    draw_signature(value).save(in_mem_file, format="PNG")
+    in_mem_file.seek(0)
+    return "data:image/png;base64,{}".format(
+        iri_to_uri(base64.b64encode(in_mem_file.read()).decode('utf8'))
+    )

jsignature/utils.py

@@ -15,25 +15,31 @@ def draw_signature(data, as_file=False):
         if `as_file` is True, a temp file is returned instead of Image instance
     """
 
+    def _remove_empty_pts(pt):
+        return {
+            'x': list(filter(lambda n: n is not None, pt['x'])),
+            'y': list(filter(lambda n: n is not None, pt['y']))
+        }
+
     if type(data) is str:
-        drawing = json.loads(data)
+        drawing = json.loads(data, object_hook=_remove_empty_pts)
     elif type(data) is list:
         drawing = data
     else:
         raise ValueError
 
     # Compute box
-    width = max(chain(*[d['x'] for d in drawing])) + 10
-    height = max(chain(*[d['y'] for d in drawing])) + 10
+    width = int(round(max(chain(*[d['x'] for d in drawing])))) + 10
+    height = int(round(max(chain(*[d['y'] for d in drawing])))) + 10
 
     # Draw image
-    im = Image.new("RGBA", (width*AA, height*AA))
+    im = Image.new("RGBA", (width * AA, height * AA))
     draw = ImageDraw.Draw(im)
     for line in drawing:
         len_line = len(line['x'])
-        points = [(line['x'][i]*AA, line['y'][i]*AA)
+        points = [(line['x'][i] * AA, line['y'][i] * AA)
                   for i in range(0, len_line)]
-        draw.line(points, fill="#000", width=2*AA)
+        draw.line(points, fill="#000", width=2 * AA)
     im = ImageOps.expand(im)
     # Smart crop
     bbox = im.getbbox()

jsignature/widgets.py

@@ -11,7 +11,7 @@ from django.core import validators
 from django.core.exceptions import ValidationError
 
 from django.utils.safestring import mark_safe
-from django.utils.translation import ugettext_lazy as _
+from django.utils.translation import gettext_lazy as _
 from jsignature.settings import JSIGNATURE_DEFAULT_CONFIG
 
 JSIGNATURE_EMPTY_VALUES = validators.EMPTY_VALUES + ('[]', )

requirements.txt

@@ -1,2 +1,3 @@
 pillow
-pyquery
+pyquery<1.4.2; python_version<="2.7"
+pyquery>=1.4.2; python_version>"2.7"

setup.py

@@ -5,7 +5,7 @@ here = os.path.abspath(os.path.dirname(__file__))
 
 setup(
     name='django-jsignature',
-    version='0.9',
+    version='0.11',
     author='Florent Lebreton',
     author_email='florent.lebreton@makina-corpus.com',
     url='https://github.com/fle/django-jsignature',
@@ -14,8 +14,8 @@ setup(
     long_description=open(os.path.join(here, 'README.rst')).read() + '\n\n' +
         open(os.path.join(here, 'CHANGES')).read(),
     license='LPGL, see LICENSE file.',
-    install_requires=['Django', 'pillow'],
-    packages=find_packages(),
+    install_requires=['Django>=1.11', 'pillow', 'pyquery>=1.4.2'],
+    packages=find_packages(exclude=['example_project*', 'tests']),
     include_package_data=True,
     zip_safe=False,
     classifiers=[
@@ -29,13 +29,13 @@ setup(
         'Framework :: Django :: 2.2',
         'Framework :: Django :: 3.0',
         'Development Status :: 5 - Production/Stable',
-         'Programming Language :: Python',
-         'Programming Language :: Python :: 2',
-         'Programming Language :: Python :: 2.7',
-         'Programming Language :: Python :: 3',
-         'Programming Language :: Python :: 3.5'
-         'Programming Language :: Python :: 3.6'
-         'Programming Language :: Python :: 3.7'
-         'Programming Language :: Python :: 3.8'
+        'Programming Language :: Python',
+        'Programming Language :: Python :: 2',
+        'Programming Language :: Python :: 2.7',
+        'Programming Language :: Python :: 3',
+        'Programming Language :: Python :: 3.5',
+        'Programming Language :: Python :: 3.6',
+        'Programming Language :: Python :: 3.7',
+        'Programming Language :: Python :: 3.8',
     ],
 )

tests/settings.py

@@ -2,6 +2,8 @@ import os
 
 DEBUG = True
 
+USE_TZ = True
+
 BASE_DIR = os.path.dirname(os.path.dirname(__file__))
 
 SECRET_KEY = 'thisisntactuallysecretatall'

tests/test_faulty_signature.py

@@ -0,0 +1,12 @@
+import json
+
+from django.test import SimpleTestCase
+
+from jsignature.templatetags.jsignature_filters import signature_base64
+
+FAULTY_SIGNATURE = [{"x": [120.00675156801722, 116.11464070635179, 114.16858527551909], "y": [83.0316983821957, 76.54484694608666, 224.44505968937275]}, {"x": [161.52260075911508, 165.4147116207805, 173.84761848772226, 184.2265807854967, 201.0923945193802], "y": [84.97775381302841, 79.78827266414118, 72.00405094081033, 62.922458930257676, 56.43560749414864]}]
+DUMMY_STR_VALUE = json.dumps(FAULTY_SIGNATURE)
+
+class TemplateFilterFailedTest(SimpleTestCase):
+    def test_throw_error(self):
+        output = signature_base64(DUMMY_STR_VALUE)

tests/test_fields.py

@@ -24,13 +24,13 @@ class JSignatureFieldTest(SimpleTestCase):
     def test_to_python_correct_value_python(self):
         f = JSignatureField()
         val = [{"x": [1, 2], "y": [3, 4]}]
-        self.assertEquals(val, f.to_python(val))
+        self.assertEqual(val, f.to_python(val))
 
     def test_to_python_correct_value_json(self):
         f = JSignatureField()
         val = [{"x": [1, 2], "y": [3, 4]}]
         val_str = '[{"x":[1,2], "y":[3,4]}]'
-        self.assertEquals(val, f.to_python(val_str))
+        self.assertEqual(val, f.to_python(val_str))
 
     def test_to_python_incorrect_value(self):
         f = JSignatureField()
@@ -47,7 +47,7 @@ class JSignatureFieldTest(SimpleTestCase):
         val = [{"x": [1, 2], "y": [3, 4]}]
         val_prep = f.get_prep_value(val)
         self.assertIsInstance(val_prep, string_types)
-        self.assertEquals(val, json.loads(val_prep))
+        self.assertEqual(val, json.loads(val_prep))
 
     def test_get_prep_value_correct_values_json(self):
         f = JSignatureField()
@@ -55,7 +55,7 @@ class JSignatureFieldTest(SimpleTestCase):
         val_str = '[{"x":[1,2], "y":[3,4]}]'
         val_prep = f.get_prep_value(val_str)
         self.assertIsInstance(val_prep, string_types)
-        self.assertEquals(val, json.loads(val_prep))
+        self.assertEqual(val, json.loads(val_prep))
 
     def test_get_prep_value_incorrect_values(self):
         f = JSignatureField()

tests/test_filter.py

@@ -0,0 +1,19 @@
+import json
+
+from django.test import SimpleTestCase
+
+from jsignature.templatetags.jsignature_filters import signature_base64
+
+DUMMY_VALUE = [{"x": [205, 210], "y": [59, 63]},
+               {"x": [205, 207], "y": [67, 64]}]
+DUMMY_STR_VALUE = json.dumps(DUMMY_VALUE)
+
+
+class TemplateFilterTest(SimpleTestCase):
+    def test_inputs_bad_type_value(self):
+        self.assertEqual(signature_base64(object()), '')
+        self.assertEqual(signature_base64(None), '')
+
+    def test_outputs_as_base64(self):
+        output = signature_base64(DUMMY_STR_VALUE)
+        self.assertEqual(output, "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAANwAAABNCAYAAADNYApnAAABIklEQVR4nO3ZP0odURjG4d/ce5dgE3EHgXTp07iD6B7cga3YpUoh7iFrCti4BkGw0OLMoEVIEW4yxPs81ZxzGPial+/8KQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAPh3ttW0dhFwCN4GbbNaFXAAlrCdVh/m791KtcC7tmkE7mP1XP2sPs1rQgd7NjVCd1TdNkL3UJ2tWRQciovqqRG8q0aXc6aDPZsat5RVX6q7Rui+zXPbX/wD/KFla7mc306qH9XneazLwZ4s3eu8eqwuV6wF3rXllvK4um9sI7/Oc7s8hMNeLVf/3xthu5nHzmzwF0y9drjrxvPAMgcA/7/lWUBnAwAAAAAAfucFwt4TZmdXW+AAAAAASUVORK5CYII=")

tests/test_forms.py

@@ -19,7 +19,7 @@ class JSignatureFormFieldTest(SimpleTestCase):
     def test_to_python_correct_values(self):
         f = JSignatureField()
         val = '[{"x":[1,2], "y":[3,4]}]'
-        self.assertEquals([{'x': [1, 2], 'y': [3, 4]}], f.to_python(val))
+        self.assertEqual([{'x': [1, 2], 'y': [3, 4]}], f.to_python(val))
 
     def test_to_python_incorrect_values(self):
         f = JSignatureField()

tests/test_widgets.py

@@ -25,7 +25,7 @@ class JSignatureWidgetTest(SimpleTestCase):
         self.assertIn('jSignature.min.js', media_js_str)
         self.assertIn('django_jsignature.js', media_js_str)
         media_css = list(media.render_css())
-        self.assertEquals([], media_css)
+        self.assertEqual([], media_css)
 
     @override_settings(JSIGNATURE_JQUERY='admin')
     def test_media_in_admin(self):
@@ -34,12 +34,19 @@ class JSignatureWidgetTest(SimpleTestCase):
         media_js = list(media.render_js())
         self.assertEqual(4, len(media_js))
 
+    @override_settings(JSIGNATURE_JQUERY='https://code.jquery.com/jquery-3.5.0.min.js')
+    def test_media_custom_jquery(self):
+        widget = JSignatureWidget()
+        media = widget.media
+        media_js = list(media.render_js())
+        self.assertEqual(3, len(media_js))
+
     def test_init(self):
         w = JSignatureWidget()
-        self.assertEquals({}, w.jsignature_attrs)
+        self.assertEqual({}, w.jsignature_attrs)
         given_attrs = {'width': 300, 'height': 100}
         w = JSignatureWidget(jsignature_attrs=given_attrs)
-        self.assertEquals(given_attrs, w.jsignature_attrs)
+        self.assertEqual(given_attrs, w.jsignature_attrs)
 
     def test_build_jsignature_id(self):
         w = JSignatureWidget()
@@ -62,7 +69,7 @@ class JSignatureWidgetTest(SimpleTestCase):
         val = [{"x": [1, 2], "y": [3, 4]}]
         val_prep = w.prep_value(val)
         self.assertIsInstance(val_prep, string_types)
-        self.assertEquals(val, json.loads(val_prep))
+        self.assertEqual(val, json.loads(val_prep))
 
     def test_prep_value_correct_values_json(self):
         w = JSignatureWidget()
@@ -70,7 +77,7 @@ class JSignatureWidgetTest(SimpleTestCase):
         val_str = '[{"x":[1,2], "y":[3,4]}]'
         val_prep = w.prep_value(val_str)
         self.assertIsInstance(val_prep, string_types)
-        self.assertEquals(val, json.loads(val_prep))
+        self.assertEqual(val, json.loads(val_prep))
 
     def test_prep_value_incorrect_values(self):
         w = JSignatureWidget()

tox.ini

@@ -1,23 +1,25 @@
 [tox]
 envlist =
-    {py27,py35,py36}-django111,
-    {py35,py36,py37,py38}-django22,
-    {py36,py37,py38}-django{30,master}
+    {py36,py37,py38,py39,py310}-django22,
+    {py36,py37,py38,py39,py310}-django32,
+    {py38,py39,py310}-django{40,master},
+    py310-djangomaster
 
 [testenv]
 deps=
-    django111: Django>=1.11,<2.0
     django22: Django>=2.2,<3.0
-    django30: Django>=3.0,<4.0
-    djangomaster: https://github.com/django/django/archive/master.tar.gz
+    django32: Django>=3.2,<4.0
+    django40: Django>=4.0,<4.1
+    djangomaster: https://github.com/django/django/archive/main.tar.gz
     -r requirements.txt
     coverage
 
 commands= coverage run ./runtests.py
 
-[travis:env]
-DJANGO =
-    1.11: django111
-    2.2: django22
-    3.0: django30
-    master: djangomaster
+[gh-actions]
+python =
+    3.6: py36-django{22,32}
+    3.7: py37-django{22,32}
+    3.8: py38-django{22,32,40}
+    3.9: py39-django{22,32,40}
+    3.10: py310-django{22,32,40,master}