SyntaxError: (unicode error) 'unicodeescape' codec can't decode bytes in position 2-3: truncated \UXXXXXXXX escape

[zljubisicmob at gmail.com]

> No, we can't see what ROOTDIR is, since you read it from the config 
> file.  And you don't show us the results of those prints.  You don't 
> even show us the full exception, or even the line it fails on.

Sorry I forgot. This is the output of the script:

C:\Python34\python.exe C:/Users/zoran/PycharmProjects/mm_align/bckslash_test.py
C:\Users\zoran\hrt
Traceback (most recent call last):
  File "C:/Users/zoran/PycharmProjects/mm_align/bckslash_test.py", line 43, in <module>
    with open(src_file, mode='w', encoding='utf-8') as s_file:
FileNotFoundError: [Errno 2] No such file or directory: 'C:\\Users\\zoran\\hrt\\src_70._godišnjica_pobjede_nad_fašizmom_Zašto_većina_čelnika_Europske_unije_bojkotira_vojnu_paradu_u_Moskvi__Kako_će_se_obljetnica_pobjede_nad_nacističkom_Njemačkom_i_njenim_satelitima_obilježiti_u_našoj_zemlji__Hoće_li_Josip_Broz_Tito_o.txt'
70._godišnjica_pobjede_nad_fašizmom_Zašto_većina_čelnika_Europske_unije_bojkotira_vojnu_paradu_u_Moskvi__Kako_će_se_obljetnica_pobjede_nad_nacističkom_Njemačkom_i_njenim_satelitima_obilježiti_u_našoj_zemlji__Hoće_li_Josip_Broz_Tito_o
260 C:\Users\zoran\hrt\src_70._godišnjica_pobjede_nad_fašizmom_Zašto_većina_čelnika_Europske_unije_bojkotira_vojnu_paradu_u_Moskvi__Kako_će_se_obljetnica_pobjede_nad_nacističkom_Njemačkom_i_njenim_satelitima_obilježiti_u_našoj_zemlji__Hoće_li_Josip_Broz_Tito_o.txt
260 C:\Users\zoran\hrt\des_70._godišnjica_pobjede_nad_fašizmom_Zašto_većina_čelnika_Europske_unije_bojkotira_vojnu_paradu_u_Moskvi__Kako_će_se_obljetnica_pobjede_nad_nacističkom_Njemačkom_i_njenim_satelitima_obilježiti_u_našoj_zemlji__Hoće_li_Josip_Broz_Tito_o.txt

Process finished with exit code 1

Cfg file has the following contents:

C:\Users\zoran\PycharmProjects\mm_align\hrt3.cfg contents
[Dir]
ROOTDIR = C:\Users\zoran\hrt 

> I doubt that the problem is in the ROODIR value, but of course nothing 
> in your program bothers to check that that directory exists.  I expect 
> you either have too many characters total, or the 232th character is a 
> strange one.  Or perhaps title has a backslash in it (you took care of 
> forward slash).

How to determine that?
 
> While we're at it, if you do have an OS limitation on size, your code is 
> truncating at the wrong point.  You need to truncate the title based on 
> the total size of src_file and dst_file, and since the code cannot know 
> the size of ROOTDIR, you need to include that in your figuring.

Well, in my program I am defining a file name as category-id-description.mp3.
If the file is too long I am cutting description (it wasn't clear from my example).

Regards.