Hi,
I'm facing a weird Python error. I tried unmarshalling a hash and got this error. There is lot of free space available and this is nowhere linked to that.

[root@amd result_hashes]# python
Python 2.4 (#1, Feb 8 2006, 18:31:16)
[GCC 3.4.2 20041017 (Red Hat 3.4.2-6.fc3)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import marshal
>>> fd=open('runed_result.hash','rb')
>>> hash=marshal.load(fd)
Fatal Python error: PyString_InternInPlace: strings only please!
Aborted

The above is the error message i got. I couldn find any relevant answer in google too. Any help is appreciated.

Thanks in advance
gobi

You are marshalling a file object... I guess you meant something like

Thanks for your reply. marshal.load() expects file descriptor as its argument and the file i used was initially dumped by marshal in a different machine. The python versions in both the machines are same and i'm still trying to find what went wrong. Any help is appreciated.

Thanks
Gobi

You're right. I have found plenty of references to that problem via Google but no real solution. Some say it's a memory problem, some say that marshal is not safe.

Personally I always use cPickle and I have never had an issue. Additionally, it's independant of the Python version.

Do you have the possibility to try with cPickle instead of marshal?

I solved the problem. I used FTP ASCII mode to transfer those hashes from other machine to mine. But i found FTP with BINARY mode solved that problem and now unmarshalling is proper.
As you suggested i will try with cpickle instead of marshal.
Thanks for all your help.


Gobi