flake8: enable F401 and F403

use an inline comment to disable for the __init__.py case

cairo/__init__.py

@@ -1 +1 @@
-from ._cairo import *
+from ._cairo import *  # noqa: F401,F403

examples/cairo_snippets/snippets/arc.py

@@ -1,5 +1,4 @@
 from math import pi
-import cairo
 
 
 def draw(cr, width, height):

examples/cairo_snippets/snippets/arc_negative.py

@@ -1,5 +1,4 @@
 from math import pi
-import cairo
 
 
 def draw(cr, width, height):

examples/cairo_snippets/snippets/clip.py

@@ -1,5 +1,4 @@
 from math import pi
-import cairo
 
 
 def draw(cr, width, height):

examples/cairo_snippets/snippets/curve_rectangle.py

@@ -1,5 +1,3 @@
-import cairo
-
 
 def draw(cr, width, height):
     cr.scale(width, height)

examples/cairo_snippets/snippets/curve_to.py

@@ -1,5 +1,3 @@
-import cairo
-
 
 def draw(cr, width, height):
     cr.scale(width, height)

examples/cairo_snippets/snippets/ellipse.py

@@ -1,5 +1,4 @@
 from math import pi
-import cairo
 
 
 def path_ellipse(cr, x, y, width, height, angle=0):

examples/cairo_snippets/snippets/fill_and_stroke.py

@@ -1,5 +1,3 @@
-import cairo
-
 
 def draw(cr, width, height):
     cr.scale(width, height)

examples/cairo_snippets/snippets/fill_and_stroke2.py

@@ -1,5 +1,3 @@
-import cairo
-
 
 def draw(cr, width, height):
     cr.scale(width, height)

examples/cairo_snippets/snippets/hering.py

@@ -2,7 +2,6 @@
 """cairo/cairo-demo/png/hering.c translated into Python"""
 
 import math
-import cairo
 
 
 def draw(ctx, width, height):

examples/cairo_snippets/snippets/path.py

@@ -1,5 +1,3 @@
-import cairo
-
 
 def draw(cr, width, height):
     cr.scale(width, height)

examples/cairo_snippets/snippets/spiral.py

@@ -1,8 +1,6 @@
 #!/usr/bin/env python
 """cairo/cairo-demo/png/spiral.c translated into Python"""
 
-import cairo
-
 
 def draw(ctx, width, height):
     wd = .02 * width

examples/cairo_snippets/snippets_gtk.py

@@ -1,10 +1,5 @@
 #!/usr/bin/env python
 
-import os.path
-import sys
-
-import cairo
-
 import gi
 gi.require_version("Gtk", "3.0")
 gi.require_foreign("cairo")

examples/gtk/cairo-knockout.py

@@ -4,7 +4,6 @@
 
 from __future__ import division
 import math
-import sys
 
 import cairo
 import gi

setup.cfg

@@ -1,3 +1,3 @@
 [flake8]
-ignore=F403,F401,E402
+ignore=E402
 builtins=buffer

tests/test_surface_pygame.py

@@ -1,8 +1,5 @@
 # -*- coding: utf-8 -*-
 
-import os
-import tempfile
-
 import cairo
 import pytest