Use python3

docs/releasenotes/8.0.0.rst

@@ -78,7 +78,7 @@ Added a new ``formats`` parameter to :py:func:`.Image.open`:
 * A list or tuple of formats to attempt to load the file in.
   This can be used to restrict the set of formats checked.
   Pass ``None`` to try all supported formats. You can print the set of
-  available formats by running ``python -m PIL`` or using
+  available formats by running ``python3 -m PIL`` or using
   the :py:func:`PIL.features.pilinfo` function.
 
 ImageOps.autocontrast: add mask parameter

src/PIL/IcnsImagePlugin.py

@@ -375,7 +375,7 @@ if sys.platform == "darwin":
 if __name__ == "__main__":
 
     if len(sys.argv) < 2:
-        print("Syntax: python IcnsImagePlugin.py [file]")
+        print("Syntax: python3 IcnsImagePlugin.py [file]")
         sys.exit()
 
     with open(sys.argv[1], "rb") as fp:

src/PIL/Image.py

@@ -2887,7 +2887,7 @@ def open(fp, mode="r", formats=None):
     :param formats: A list or tuple of formats to attempt to load the file in.
        This can be used to restrict the set of formats checked.
        Pass ``None`` to try all supported formats. You can print the set of
-       available formats by running ``python -m PIL`` or using
+       available formats by running ``python3 -m PIL`` or using
        the :py:func:`PIL.features.pilinfo` function.
     :returns: An :py:class:`~PIL.Image.Image` object.
     :exception FileNotFoundError: If the file cannot be found.

src/PIL/ImageShow.py

@@ -256,7 +256,7 @@ else:
 if __name__ == "__main__":
 
     if len(sys.argv) < 2:
-        print("Syntax: python ImageShow.py imagefile [title]")
+        print("Syntax: python3 ImageShow.py imagefile [title]")
         sys.exit()
 
     with Image.open(sys.argv[1]) as im:

src/PIL/SpiderImagePlugin.py

@@ -296,7 +296,7 @@ Image.register_save(SpiderImageFile.format, _save_spider)
 if __name__ == "__main__":
 
     if len(sys.argv) < 2:
-        print("Syntax: python SpiderImagePlugin.py [infile] [outfile]")
+        print("Syntax: python3 SpiderImagePlugin.py [infile] [outfile]")
         sys.exit()
 
     filename = sys.argv[1]

src/PIL/features.py

@@ -218,7 +218,7 @@ def get_supported():
 def pilinfo(out=None, supported_formats=True):
     """
     Prints information about this installation of Pillow.
-    This function can be called with ``python -m PIL``.
+    This function can be called with ``python3 -m PIL``.
 
     :param out:
         The output stream to print to. Defaults to ``sys.stdout`` if ``None``.