python3.7 fails on m68k

• 標準ライブラリ(datetime.py)中のassertでこける
• グローバル定数っぽい値の初期化なのでこけるはずはない
• 即値比較を変数との比較にすれば何故か動く…(´・ω・｀)

--- /usr/pkg/lib/python3.7/datetime.py.ORG
+++ /usr/pkg/lib/python3.7/datetime.py
@@ -530,7 +530,8 @@
         # seconds isn't referenced again before redefinition
 
         usdouble = secondsfrac * 1e6
-        assert abs(usdouble) < 2.1e6    # exact value not critical
+        xxx = 2.1e6
+        assert abs(usdouble) < xxx    # exact value not critical
         # secondsfrac isn't referenced again
 
         if isinstance(microseconds, float):