dev-python/python-magic: add Python 3.7, PyPy{,3}, fix tests.

* Tests didn't work with recent versions of file. Provide patches that
  have been merged upstream.
* Fix dependencies, DEPEND=${DEPEND} was a typo.
* EAPI=7.

Package-Manager: Portage-2.3.45, Repoman-2.3.10
Closes: https://github.com/gentoo/gentoo/pull/9607

dev-python/python-magic/files/python-magic-0.4.15-fix-jpeg-test.patch

@@ -0,0 +1,49 @@
+commit 4bda684f8b461cc1f69593799efcf6afe8397756
+Author: Adam Hupp <adam@hupp.org>
+Date:   Sat Dec 9 09:09:00 2017 -0800
+
+    fix test for xenial since travis started enabling it
+
+diff --git a/test/test.py b/test/test.py
+index addccc6..c6e2d9c 100755
+--- a/test/test.py
++++ b/test/test.py
+@@ -17,7 +17,7 @@ class MagicTest(unittest.TestCase):
+             except TypeError:
+                 filename = os.path.join(self.TESTDATA_DIR.encode('utf-8'), filename)
+ 
+-            
++
+             if type(expected_value) is not tuple:
+                 expected_value = (expected_value,)
+ 
+@@ -37,7 +37,7 @@ class MagicTest(unittest.TestCase):
+         self.assertEqual("text/x-python", m.from_buffer(s))
+         b = b'#!/usr/bin/env python\nprint("foo")'
+         self.assertEqual("text/x-python", m.from_buffer(b))
+-                
++
+     def test_mime_types(self):
+         dest = os.path.join(MagicTest.TESTDATA_DIR, b'\xce\xbb'.decode('utf-8'))
+         shutil.copyfile(os.path.join(MagicTest.TESTDATA_DIR, 'lambda'), dest)
+@@ -92,9 +92,9 @@ class MagicTest(unittest.TestCase):
+ 
+         m = magic.Magic(mime=True)
+         self.assertEqual(m.from_file(filename), 'image/jpeg')
+-        
++
+         m = magic.Magic(mime=True, keep_going=True)
+-        self.assertEqual(m.from_file(filename), 'image/jpeg')
++        self.assertEqual(m.from_file(filename), 'image/jpeg\\012- application/octet-stream')
+ 
+ 
+     def test_rethrow(self):
+@@ -103,7 +103,7 @@ class MagicTest(unittest.TestCase):
+             def t(x,y):
+                 raise magic.MagicException("passthrough")
+             magic.magic_buffer = t
+-            
++
+             self.assertRaises(magic.MagicException, magic.from_buffer, "hello", True)
+         finally:
+             magic.magic_buffer = old