In IDAPython, what is the ea_t data type? It is used in the set_debug_name() function as follows:

bool set_debug_name(ea, name)

If I have a 64-bits address, can it be represented by the ea_t data type ?

For example, in this Python script:

line = "ffffffff81000000 T startup_64"
addr = int(line[:16],16)
name = line[19:]

I receive this error while executing the IDA Python script:

TypeError: Expected an ea_t type

from IDA Pro:

Python> from idaapi import *
Python> line="ffffffff81000000 T startup_64"
Python> addr=int(line[:16],16)
Python> name=line[19:]
Python> print "addr: %x" %(addr)
addr: ffffffff81000000
Python> print name
Python> set_debug_name(addr,name)
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "X\IDA Pro\IDA61\python\idaapi.py", line 23612, in set_debug_name
    return _idaapi.set_debug_name(*args)
TypeError: Expected an ea_t type

Are the idaapi.py files different for 32-bits and 64-bits IDA Pro versions?

I am using a 32-bits version of IDAPro.

1 Answer 1


From pro.h:

#ifdef __EA64__
  typedef uint64 ea_t;      // effective address

Yes also in python it can represent a 64-bit address

32-bit and 64-bit files are the same (they're is only 1 file)

The following very basic script works fine for me on notepad.exe using 64-bit IDA;

Python>from idaapi import *
Python>ea = 0x0000000100003590L


Updated to show your script working in 32-bit IDA:

Python>print sys.version
2.7.3 (default, Apr 10 2012, 23:31:26) [MSC v.1500 32 bit (Intel)]
Python>line="ffffffff81000000 T startup_64"
<type 'long'>

Did you try updating your idapython with a 'newer' version from Google code? http://code.google.com/p/idapython/

  • Thanks. I have updated my question with the Python script and the error message that I receive. addr stores a 64 bit address.
    – Neon Flash
    Commented Aug 22, 2013 at 11:12
  • Please note that I am using 32 bit version of IDA, will it still work?
    – Neon Flash
    Commented Aug 22, 2013 at 11:18
  • See my updated answer. For me your script also works in a 32-bit IDA instance
    – ixje
    Commented Aug 22, 2013 at 14:31

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