Flake8

.github/workflows/actions.yml

@@ -11,7 +11,7 @@ jobs:
           - '2.2'
           - '3.2'
           - '4.0'
-        python_version:
+        python-version:
           - 3.6
           - 3.7
           - 3.8
@@ -19,13 +19,13 @@ jobs:
           - "3.10"
         exclude:
           - django_version: '2.2'
-            python_version: '3.10'
+            python-version: '3.10'
 
           - django_version: '4.0'
-            python_version: '3.6'
+            python-version: '3.6'
 
           - django_version: '4.0'
-            python_version: '3.7'
+            python-version: '3.7'
 
     env:
       GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
@@ -33,17 +33,17 @@ jobs:
     steps:
       - uses: actions/checkout@v2
 
-      - name: Set up Python ${{ matrix.python_version }}
+      - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v2
         with:
-          python_version: ${{ matrix.python_version }}
+          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 }}
+          key: ${{ runner.os }}-pip-${{ matrix.python-version }}-${{ matrix.django_version }}
 
       - name: Install dependencies
         run: |
@@ -58,7 +58,7 @@ jobs:
       - name: Test Django
         run: |
           python -W error::DeprecationWarning -W error::PendingDeprecationWarning \
-            -m coverage run runtests.py
+            -m coverage run ./runtests.py
 
       - name: Coverage
         if: ${{ success() }}

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/utils.py

@@ -14,8 +14,12 @@ def draw_signature(data, as_file=False):
         `data` can be a json object (list in fact) or a json string
         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']))}
+        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, object_hook=_remove_empty_pts)
@@ -29,13 +33,13 @@ def draw_signature(data, as_file=False):
     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()