move first semester to first semester

I/Karto/assignment3/deg.py

@@ -0,0 +1,59 @@
+from decimal import Decimal as D
+
+class Deg:
+    def __str__(self):
+        return "%03d-%02d-%3.1f" % (self.deg, self.mm, self.ss)
+
+    def __init__(self, deg, mm, ss):
+        self.deg = D(deg)
+        self.mm = D(mm)
+        self.ss = D(ss)
+
+    @classmethod
+    def from_1(cls, deg):
+        assert isinstance(deg, D)
+
+        pdeg, pmm = divmod(deg, 1)
+        pmm = pmm * D(60)
+        pmm, pss = divmod(pmm, 1)
+        pss = pss * D(60)
+        return cls(pdeg, pmm, pss)
+
+    @classmethod
+    def guess(cls, instr):
+        if '-' in instr:
+            deg, mm, ss = instr.split('-')
+            return Deg(deg, mm, ss)
+        return cls.from_1(D(instr))
+
+    @property
+    def frac(self):
+        return (
+            self.deg +
+            self.mm / D(60) +
+            self.ss / D(3600)).normalize()
+
+
+import unittest
+class TestDeg(unittest.TestCase):
+    def test_deg(self):
+        w = Deg.guess('125.505')
+        self.assertEqual(125, w.deg)
+        self.assertEqual(30, w.mm)
+        self.assertEqual(18, w.ss)
+
+    def test_guess(self):
+        w = Deg.guess('112-58-25.4')
+        self.assertEqual(112, w.deg)
+        self.assertEqual(58, w.mm)
+        self.assertEqual(D('25.4'), w.ss)
+        frac = "%3.7f" % w.frac
+        self.assertEqual('112.9737222', frac)
+
+    def test_str_lower(self):
+        w = Deg(120, 1, 42.541)
+        self.assertEqual("120-01-42.5", str(w))
+
+    def test_str_upper(self):
+        w = Deg(120, 1, 42.545)
+        self.assertEqual("120-01-42.5", str(w))