Fix copy behaviour of HyComplex

hy/models.py

@@ -171,18 +171,17 @@ class HyComplex(HyObject, complex):
     complex(foo) was called, given HyComplex(foo).
     """
 
-    def __new__(cls, num, *args, **kwargs):
-        value = super(HyComplex, cls).__new__(cls, strip_digit_separators(num))
-        if isinstance(num, string_types):
-            p1, _, p2 = num.lstrip("+-").replace("-", "+").partition("+")
+    def __new__(cls, real, imag=0, *args, **kwargs):
+        if isinstance(real, string_types):
+            value = super(HyComplex, cls).__new__(
+                cls, strip_digit_separators(real)
+            )
+            p1, _, p2 = real.lstrip("+-").replace("-", "+").partition("+")
+            check_inf_nan_cap(p1, value.imag if "j" in p1 else value.real)
             if p2:
-                check_inf_nan_cap(p1, value.real)
                 check_inf_nan_cap(p2, value.imag)
-            elif "j" in p1:
-                check_inf_nan_cap(p1, value.imag)
-            else:
-                check_inf_nan_cap(p1, value.real)
-        return value
+            return value
+        return super(HyComplex, cls).__new__(cls, real, imag)
 
 _wrappers[complex] = HyComplex
 

tests/test_models.py

@@ -2,9 +2,10 @@
 # This file is part of Hy, which is free software licensed under the Expat
 # license. See the LICENSE.
 
+import copy
 from hy._compat import long_type, str_type
 from hy.models import (wrap_value, replace_hy_obj, HyString, HyInteger, HyList,
-                       HyDict, HySet, HyExpression, HyCons)
+                       HyDict, HySet, HyExpression, HyCons, HyComplex, HyFloat)
 
 
 def test_wrap_long_type():
@@ -125,3 +126,17 @@ def test_cons_replacing():
         assert True is False
     except IndexError:
         pass
+
+
+def test_number_model_copy():
+    i = HyInteger(42)
+    assert (i == copy.copy(i))
+    assert (i == copy.deepcopy(i))
+
+    f = HyFloat(42.)
+    assert (f == copy.copy(f))
+    assert (f == copy.deepcopy(f))
+
+    c = HyComplex(42j)
+    assert (c == copy.copy(c))
+    assert (c == copy.deepcopy(c))