More linting

camelot/plotting.py

@@ -45,7 +45,8 @@ class PlotMethods(object):
         plot_method = getattr(self, kind)
         return plot_method(table)
 
-    def text(self, table):
+    @staticmethod
+    def text(table):
         """Generates a plot for all text elements present
         on the PDF page.
 
@@ -78,7 +79,8 @@ class PlotMethods(object):
         ax.imshow(img, extent=(0, table.pdf_size[0], 0, table.pdf_size[1]))
         return fig
 
-    def grid(self, table):
+    @staticmethod
+    def grid(table):
         """Generates a plot for the detected table grids
         on the PDF page.
 
@@ -108,7 +110,8 @@ class PlotMethods(object):
         ax.imshow(img, extent=(0, table.pdf_size[0], 0, table.pdf_size[1]))
         return fig
 
-    def contour(self, table):
+    @staticmethod
+    def contour(table):
         """Generates a plot for all table boundaries present
         on the PDF page.
 
@@ -161,7 +164,8 @@ class PlotMethods(object):
             ax.imshow(img, extent=(0, table.pdf_size[0], 0, table.pdf_size[1]))
         return fig
 
-    def textedge(self, table):
+    @staticmethod
+    def textedge(table):
         """Generates a plot for relevant textedges.
 
         Parameters
@@ -196,7 +200,8 @@ class PlotMethods(object):
         ax.imshow(img, extent=(0, table.pdf_size[0], 0, table.pdf_size[1]))
         return fig
 
-    def joint(self, table):
+    @staticmethod
+    def joint(table):
         """Generates a plot for all line intersections present
         on the PDF page.
 
@@ -223,7 +228,8 @@ class PlotMethods(object):
         ax.imshow(img)
         return fig
 
-    def line(self, table):
+    @staticmethod
+    def line(table):
         """Generates a plot for all line segments present
         on the PDF page.
 

tests/test_errors.py

@@ -17,27 +17,27 @@ def test_unknown_flavor():
     message = ("Unknown flavor specified."
                " Use either 'lattice', 'stream', or 'hybrid'")
     with pytest.raises(NotImplementedError, match=message):
-        tables = camelot.read_pdf(filename, flavor='chocolate')
+        camelot.read_pdf(filename, flavor='chocolate')
 
 
 def test_input_kwargs():
     message = "columns cannot be used with flavor='lattice'"
     with pytest.raises(ValueError, match=message):
-        tables = camelot.read_pdf(filename, columns=['10,20,30,40'])
+        camelot.read_pdf(filename, columns=['10,20,30,40'])
 
 
 def test_unsupported_format():
     message = 'File format not supported'
     filename = os.path.join(testdir, 'foo.csv')
     with pytest.raises(NotImplementedError, match=message):
-        tables = camelot.read_pdf(filename)
+        camelot.read_pdf(filename)
 
 
 def test_stream_equal_length():
     message = ("Length of table_areas and columns"
                " should be equal")
     with pytest.raises(ValueError, match=message):
-        tables = camelot.read_pdf(filename, flavor='stream',
+        camelot.read_pdf(filename, flavor='stream',
             table_areas=['10,20,30,40'], columns=['10,20,30,40', '10,20,30,40'])
 
 
@@ -46,7 +46,7 @@ def test_image_warning():
     with warnings.catch_warnings():
         warnings.simplefilter('error')
         with pytest.raises(UserWarning) as e:
-            tables = camelot.read_pdf(filename)
+            camelot.read_pdf(filename)
         assert str(e.value) == 'page-1 is image-based, camelot only works on text-based pages.'
 
 
@@ -55,7 +55,7 @@ def test_no_tables_found():
     with warnings.catch_warnings():
         warnings.simplefilter('error')
         with pytest.raises(UserWarning) as e:
-            tables = camelot.read_pdf(filename)
+            camelot.read_pdf(filename)
         assert str(e.value) == 'No tables found on page-1'
 
 
@@ -65,7 +65,7 @@ def test_no_tables_found_logs_suppressed():
         # the test should fail if any warning is thrown
         warnings.simplefilter('error')
         try:
-            tables = camelot.read_pdf(filename, suppress_stdout=True)
+            camelot.read_pdf(filename, suppress_stdout=True)
         except Warning as e:
             warning_text = str(e)
             pytest.fail('Unexpected warning: {}'.format(warning_text))
@@ -77,7 +77,7 @@ def test_no_tables_found_warnings_suppressed():
         # the test should fail if any warning is thrown
         warnings.simplefilter('error')
         try:
-            tables = camelot.read_pdf(filename, suppress_stdout=True)
+            camelot.read_pdf(filename, suppress_stdout=True)
         except Warning as e:
             warning_text = str(e)
             pytest.fail('Unexpected warning: {}'.format(warning_text))
@@ -87,11 +87,11 @@ def test_no_password():
     filename = os.path.join(testdir, 'health_protected.pdf')
     message = 'file has not been decrypted'
     with pytest.raises(Exception, match=message):
-        tables = camelot.read_pdf(filename)
+        camelot.read_pdf(filename)
 
 
 def test_bad_password():
     filename = os.path.join(testdir, 'health_protected.pdf')
     message = 'file has not been decrypted'
     with pytest.raises(Exception, match=message):
-        tables = camelot.read_pdf(filename, password='wrongpass')
+        camelot.read_pdf(filename, password='wrongpass')