Introduce major, minor and micro aliases to Version

packaging/version.py

@@ -401,6 +401,21 @@ def is_devrelease(self):
         # type: () -> bool
         return self.dev is not None
 
+    @property
+    def major(self):
+        # type: () -> int
+        return self.release[0] if len(self.release) >= 1 else 0
+
+    @property
+    def minor(self):
+        # type: () -> int
+        return self.release[1] if len(self.release) >= 2 else 0
+
+    @property
+    def micro(self):
+        # type: () -> int
+        return self.release[2] if len(self.release) >= 3 else 0
+
 
 def _parse_letter_version(
     letter,  # type: str

tests/test_version.py

@@ -758,6 +758,18 @@ def test_compare_legacyversion_version(self):
         result = sorted([Version("0"), LegacyVersion("1")])
         assert result == [LegacyVersion("1"), Version("0")]
 
+    def test_major_version(self):
+        assert Version("2.1.0").major == 2
+
+    def test_minor_version(self):
+        assert Version("2.1.0").minor == 1
+        assert Version("2").minor == 0
+
+    def test_micro_version(self):
+        assert Version("2.1.3").micro == 3
+        assert Version("2.1").micro == 0
+        assert Version("2").micro == 0
+
 
 LEGACY_VERSIONS = ["foobar", "a cat is fine too", "lolwut", "1-0", "2.0-a1"]