Merge branch 'u/chapoton/28868' of ssh://trac.sagemath.org:22/sage in…

…to img
sagemath · Apr 4, 2020 · 2b0806e · 2b0806e
2 parents 6a45805 + c011c93
commit 2b0806e
Showing 1 changed file with 9 additions and 9 deletions.
diff --git a/src/sage/plot/animate.py b/src/sage/plot/animate.py
@@ -99,7 +99,7 @@
 
 REFERENCES:
 
-- `ImageMagick <http://www.imagemagick.org>`_
+- `ImageMagick <https://www.imagemagick.org>`_
 - `FFmpeg <http://www.ffmpeg.org>`_
 - `APNG <https://wiki.mozilla.org/APNG_Specification>`_
 - `browsers which support it <http://caniuse.com/#feat=apng>`_
@@ -560,7 +560,7 @@ def gif(self, delay=20, savefile=None, iterations=0, show_path=False,
             sage: td = tmp_dir()
             sage: a.gif()              # not tested
             sage: a.gif(savefile=td + 'my_animation.gif', delay=35, iterations=3)  # optional -- ImageMagick
-            sage: with open(td + 'my_animation.gif', 'rb') as f: print('\x21\xf9\x04\x08\x23\x00' in f.read())  # optional -- ImageMagick
+            sage: with open(td + 'my_animation.gif', 'rb') as f: print(b'\x21\xf9\x04\x08\x23\x00' in f.read())  # optional -- ImageMagick
             True
             sage: a.gif(savefile=td + 'my_animation.gif', show_path=True) # optional -- ImageMagick
             Animation saved to .../my_animation.gif.
@@ -1053,26 +1053,26 @@ def save(self, filename=None, show_path=False, use_ffmpeg=False, **kwds):
         GIF image (see :trac:`18176`)::
 
             sage: a.save(td + 'wave.gif')   # optional -- ImageMagick
-            sage: with open(td + 'wave.gif', 'rb') as f: print('!\xf9\x04\x08\x14\x00' in f.read())  # optional -- ImageMagick
+            sage: with open(td + 'wave.gif', 'rb') as f: print(b'!\xf9\x04\x08\x14\x00' in f.read())  # optional -- ImageMagick
             True
-            sage: with open(td + 'wave.gif', 'rb') as f: print('!\xff\x0bNETSCAPE2.0\x03\x01\x00\x00\x00' in f.read())  # optional -- ImageMagick
+            sage: with open(td + 'wave.gif', 'rb') as f: print(b'!\xff\x0bNETSCAPE2.0\x03\x01\x00\x00\x00' in f.read())  # optional -- ImageMagick
             True
             sage: a.save(td + 'wave.gif', delay=35)   # optional -- ImageMagick
-            sage: with open(td + 'wave.gif', 'rb') as f: print('!\xf9\x04\x08\x14\x00' in f.read())  # optional -- ImageMagick
+            sage: with open(td + 'wave.gif', 'rb') as f: print(b'!\xf9\x04\x08\x14\x00' in f.read())  # optional -- ImageMagick
             False
-            sage: with open(td + 'wave.gif', 'rb') as f: print('!\xf9\x04\x08\x23\x00' in f.read())  # optional -- ImageMagick
+            sage: with open(td + 'wave.gif', 'rb') as f: print(b'!\xf9\x04\x08\x23\x00' in f.read())  # optional -- ImageMagick
             True
             sage: a.save(td + 'wave.gif', iterations=3)   # optional -- ImageMagick
-            sage: with open(td + 'wave.gif', 'rb') as f: print('!\xff\x0bNETSCAPE2.0\x03\x01\x00\x00\x00' in f.read())  # optional -- ImageMagick
+            sage: with open(td + 'wave.gif', 'rb') as f: print(b'!\xff\x0bNETSCAPE2.0\x03\x01\x00\x00\x00' in f.read())  # optional -- ImageMagick
             False
-            sage: with open(td + 'wave.gif', 'rb') as f: print('!\xff\x0bNETSCAPE2.0\x03\x01\x03\x00\x00' in f.read())  # optional -- ImageMagick
+            sage: with open(td + 'wave.gif', 'rb') as f: print(b'!\xff\x0bNETSCAPE2.0\x03\x01\x02\x00\x00' in f.read())  # optional -- ImageMagick
             True
         """
         if filename is None:
             suffix = '.gif'
         else:
             suffix = os.path.splitext(filename)[1]
-            if len(suffix) == 0:
+            if not suffix:
                 suffix = '.gif'
 
         if filename is None or suffix == '.gif':