Use Pdb.runcall() in debug()

[rkern]

See attached patch.

[rkern]

diff --git a/pandas/util/testing.py b/pandas/util/testing.py
index 262c1a8..0cae721 100644
--- a/pandas/util/testing.py
+++ b/pandas/util/testing.py
@@ -36,8 +36,15 @@ def rands(n):
 # Console debugging tools

 def debug(f, *args, **kwargs):
-    set_trace()
-    return f(*args, **kwargs)
+    from pdb import Pdb as OldPdb
+    try:
+        from IPython.core.debugger import Pdb
+        kw = dict(color_scheme='Linux')
+    except ImportError:
+        Pdb = OldPdb
+        kw = {}
+    pdb = Pdb(**kw)
+    return pdb.runcall(f, *args, **kwargs)

 def set_trace():
     from IPython.core.debugger import Pdb

[rkern]

That worked out much less well than I intended.

[wesm]

thanks robert!