COMPAT: Change khcomplex64/128_t typedefs (#54375)

* COMPAT: Change khcomplex64/128_t typedefs

* Spacing, use double

* Use double more places

* Go back to old fix

* Check both, cant repo locally

* Rule out pandas inference

* Use np.nan insted of float(nan)

Author: mroeschke

pandas/_libs/include/pandas/vendored/klib/khash_python.h

@@ -2,10 +2,14 @@
 #include <Python.h>
 
 
-// use numpy's definitions for complex
-#include <numpy/arrayobject.h>
-typedef npy_complex64 khcomplex64_t;
-typedef npy_complex128 khcomplex128_t;
+typedef struct {
+    float real;
+    float imag;
+} khcomplex64_t;
+typedef struct {
+    double real;
+    double imag;
+} khcomplex128_t;
 
 
 

pandas/tests/io/formats/test_printing.py

@@ -237,12 +237,12 @@ def test_multiindex_long_element():
 @pytest.mark.parametrize("as_frame", [True, False])
 def test_ser_df_with_complex_nans(data, output, as_frame):
     # GH#53762, GH#53841
-    obj = pd.Series(data)
+    obj = pd.Series(np.array(data))
     if as_frame:
         obj = obj.to_frame(name="val")
         reprs = [f"{i} {val}" for i, val in enumerate(output)]
         expected = f"{'val': >{len(reprs[0])}}\n" + "\n".join(reprs)
     else:
         reprs = [f"{i}   {val}" for i, val in enumerate(output)]
         expected = "\n".join(reprs) + "\ndtype: complex128"
-    assert str(obj) == expected
+    assert str(obj) == expected, f"\n{str(obj)}\n\n{expected}"