Here it is:
[
Switching to Thread 0x7ffa845096e0 (LWP 17901)]    
0x0000000000491c2c in PyEval_EvalFrameEx (f=0x1b30e70, throwflag=<value optimized out>) at ../Python/ceval.c:3595
3595    ../Python/ceval.c: No such file or directory.                                                            
        in ../Python/ceval.c                                                                                     
(gdb) bt                                                                                                         
#0  0x0000000000491c2c in PyEval_EvalFrameEx (f=0x1b30e70, throwflag=<value optimized out>) at ../Python/ceval.c:3595
#1  0x00000000004920e2 in PyEval_EvalFrameEx (f=0x2099760, throwflag=<value optimized out>) at ../Python/ceval.c:3681
#2  0x00000000004927cd in PyEval_EvalCodeEx (co=0x7ffa777bf300, globals=<value optimized out>, locals=<value optimized out>, args=0x0, argcount=2, kws=0x2096ff0, 
    kwcount=0, defs=0x0, defcount=0, closure=0x0) at ../Python/ceval.c:2858                                                                                       
#3  0x00000000004dd5b9 in function_call (func=0x7ffa777bfde8, arg=0x7ffa76d15e18, kw=0x1263fc0) at ../Objects/funcobject.c:517                                    
#4  0x0000000000418c33 in PyObject_Call (func=0x38, arg=0x7ffa76ca7260, kw=0x7ffa76ca7260) at ../Objects/abstract.c:1861                                          
#5  0x000000000048f927 in PyEval_EvalFrameEx (f=0x1398320, throwflag=<value optimized out>) at ../Python/ceval.c:3875                                             
#6  0x00000000004927cd in PyEval_EvalCodeEx (co=0x7ffa77cc7300, globals=<value optimized out>, locals=<value optimized out>, args=0x1d8e760, argcount=2, kws=0x1d8e770, 
    kwcount=0, defs=0x0, defcount=0, closure=0x7ffa777be6d0) at ../Python/ceval.c:2858                                                                                  
#7  0x0000000000490cf3 in PyEval_EvalFrameEx (f=0x1d8e530, throwflag=<value optimized out>) at ../Python/ceval.c:3691                                                   
#8  0x00000000004927cd in PyEval_EvalCodeEx (co=0x7ffa777b2a80, globals=<value optimized out>, locals=<value optimized out>, args=0xd, argcount=8, kws=0x1d84c00,       
    kwcount=5, defs=0x7ffa777b9428, defcount=5, closure=0x0) at ../Python/ceval.c:2858                                                                                  
#9  0x0000000000490cf3 in PyEval_EvalFrameEx (f=0x1d849e0, throwflag=<value optimized out>) at ../Python/ceval.c:3691                                                   
#10 0x00000000004927cd in PyEval_EvalCodeEx (co=0x7ffa777b2b70, globals=<value optimized out>, locals=<value optimized out>, args=0xa, argcount=7, kws=0x1d82968,       
    kwcount=3, defs=0x7ffa777b57e8, defcount=3, closure=0x0) at ../Python/ceval.c:2858                                                                                  
#11 0x0000000000490cf3 in PyEval_EvalFrameEx (f=0x1d82760, throwflag=<value optimized out>) at ../Python/ceval.c:3691                                                   
#12 0x00000000004927cd in PyEval_EvalCodeEx (co=0x7ffa777b2e40, globals=<value optimized out>, locals=<value optimized out>, args=0x5, argcount=4, kws=0x1d7fd28,       
    kwcount=0, defs=0x7ffa777be8a8, defcount=1, closure=0x0) at ../Python/ceval.c:2858                                                                                  
#13 0x0000000000490cf3 in PyEval_EvalFrameEx (f=0x1d7fb40, throwflag=<value optimized out>) at ../Python/ceval.c:3691                                                   
#14 0x00000000004927cd in PyEval_EvalCodeEx (co=0x7ffa777b2d50, globals=<value optimized out>, locals=<value optimized out>, args=0x7, argcount=6, kws=0x1d7c938,       
    kwcount=0, defs=0x7ffa777be868, defcount=1, closure=0x0) at ../Python/ceval.c:2858                                                                                  
#15 0x0000000000490cf3 in PyEval_EvalFrameEx (f=0x1d7c760, throwflag=<value optimized out>) at ../Python/ceval.c:3691                                                   
#16 0x00000000004920e2 in PyEval_EvalFrameEx (f=0x1361fa0, throwflag=<value optimized out>) at ../Python/ceval.c:3681                                                   
#17 0x00000000004927cd in PyEval_EvalCodeEx (co=0x7ffa7ed2e468, globals=<value optimized out>, locals=<value optimized out>, args=0x1, argcount=2, kws=0x1361830,       
    kwcount=11, defs=0x7ffa7ed156a8, defcount=18, closure=0x0) at ../Python/ceval.c:2858                                                                                
#18 0x00000000004dd5b9 in function_call (func=0x7ffa7ed38848, arg=0x7ffa7e7fabd8, kw=0x1361620) at ../Objects/funcobject.c:517                                          
#19 0x0000000000418c33 in PyObject_Call (func=0x38, arg=0x7ffa76ca7260, kw=0x7ffa76ca7260) at ../Objects/abstract.c:1861                                                
#20 0x000000000048f927 in PyEval_EvalFrameEx (f=0x12695f0, throwflag=<value optimized out>) at ../Python/ceval.c:3875                                                   
#21 0x00000000004927cd in PyEval_EvalCodeEx (co=0x7ffa7f679d50, globals=<value optimized out>, locals=<value optimized out>, args=0x3, argcount=1, kws=0x1269510,       
    kwcount=11, defs=0x7ffa7f6258d8, defcount=2, closure=0x0) at ../Python/ceval.c:2858                                                                                 
#22 0x00000000004dd5b9 in function_call (func=0x7ffa7f62c9b0, arg=0x7ffa7ed19e10, kw=0x12690f0) at ../Objects/funcobject.c:517                                          
#23 0x0000000000418c33 in PyObject_Call (func=0x38, arg=0x7ffa76ca7260, kw=0x7ffa76ca7260) at ../Objects/abstract.c:1861                                                
#24 0x000000000048f927 in PyEval_EvalFrameEx (f=0x1268180, throwflag=<value optimized out>) at ../Python/ceval.c:3875                                                   
#25 0x00000000004927cd in PyEval_EvalCodeEx (co=0x7ffa7f62ca80, globals=<value optimized out>, locals=<value optimized out>, args=0x7ffa803bf340, argcount=3,           
    kws=0x12680c0, kwcount=9, defs=0x7ffa7f625f08, defcount=2, closure=0x0) at ../Python/ceval.c:2858                                                                   
---Type <return> to continue, or q <return> to quit---
#26 0x00000000004dd5b9 in function_call (func=0x7ffa7f62cb90, arg=0x7ffa7ed2aaf0, kw=0x1267bf0) at ../Objects/funcobject.c:517
#27 0x0000000000418c33 in PyObject_Call (func=0x38, arg=0x7ffa76ca7260, kw=0x7ffa76ca7260) at ../Objects/abstract.c:1861      
#28 0x000000000041fb08 in instancemethod_call (func=0x7ffa7f62cb90, arg=0x7ffa7ed2aaf0, kw=0x1267bf0) at ../Objects/classobject.c:2519
#29 0x0000000000418c33 in PyObject_Call (func=0x38, arg=0x7ffa76ca7260, kw=0x7ffa76ca7260) at ../Objects/abstract.c:1861              
#30 0x000000000048f927 in PyEval_EvalFrameEx (f=0x12679e0, throwflag=<value optimized out>) at ../Python/ceval.c:3875                 
#31 0x00000000004927cd in PyEval_EvalCodeEx (co=0x7ffa7f656c60, globals=<value optimized out>, locals=<value optimized out>, args=0x3, argcount=1, kws=0x1267900, 
    kwcount=11, defs=0x7ffa7f5e9c80, defcount=2, closure=0x0) at ../Python/ceval.c:2858                                                                           
#32 0x00000000004dd5b9 in function_call (func=0x7ffa7f5f6488, arg=0x7ffa7ed27110, kw=0x1263a50) at ../Objects/funcobject.c:517                                    
#33 0x0000000000418c33 in PyObject_Call (func=0x38, arg=0x7ffa76ca7260, kw=0x7ffa76ca7260) at ../Objects/abstract.c:1861                                          
#34 0x000000000048f927 in PyEval_EvalFrameEx (f=0x122e690, throwflag=<value optimized out>) at ../Python/ceval.c:3875                                             
#35 0x00000000004927cd in PyEval_EvalCodeEx (co=0x7ffa7f5f6558, globals=<value optimized out>, locals=<value optimized out>, args=0x3, argcount=1, kws=0x1103308, 
    kwcount=10, defs=0x7ffa7f5e9fe0, defcount=2, closure=0x0) at ../Python/ceval.c:2858                                                                           
#36 0x0000000000490cf3 in PyEval_EvalFrameEx (f=0x11030b0, throwflag=<value optimized out>) at ../Python/ceval.c:3691                                             
#37 0x00000000004927cd in PyEval_EvalCodeEx (co=0x7ffa7fd0b4e0, globals=<value optimized out>, locals=<value optimized out>, args=0xc, argcount=1, kws=0x1103030, 
    kwcount=5, defs=0x7ffa7fd1b728, defcount=11, closure=0x0) at ../Python/ceval.c:2858                                                                           
#38 0x00000000004dd5b9 in function_call (func=0x7ffa7fd35050, arg=0x7ffa81456150, kw=0x10a4e80) at ../Objects/funcobject.c:517                                    
#39 0x0000000000418c33 in PyObject_Call (func=0x38, arg=0x7ffa76ca7260, kw=0x7ffa76ca7260) at ../Objects/abstract.c:1861                                          
#40 0x000000000048f927 in PyEval_EvalFrameEx (f=0x10f1900, throwflag=<value optimized out>) at ../Python/ceval.c:3875                                             
#41 0x00000000004927cd in PyEval_EvalCodeEx (co=0x7ffa843b9dc8, globals=<value optimized out>, locals=<value optimized out>, args=0x7ffa7fcd75b8, argcount=3,     
    kws=0x10b1000, kwcount=0, defs=0x7ffa84392768, defcount=1, closure=0x0) at ../Python/ceval.c:2858                                                             
#42 0x00000000004dd5b9 in function_call (func=0x7ffa84391b18, arg=0x7ffa7fcd75a0, kw=0x1084090) at ../Objects/funcobject.c:517                                    
#43 0x0000000000418c33 in PyObject_Call (func=0x38, arg=0x7ffa76ca7260, kw=0x7ffa76ca7260) at ../Objects/abstract.c:1861                                          
#44 0x000000000048f927 in PyEval_EvalFrameEx (f=0x10b8cb0, throwflag=<value optimized out>) at ../Python/ceval.c:3875                                             
#45 0x00000000004927cd in PyEval_EvalCodeEx (co=0x7ffa843bf4e0, globals=<value optimized out>, locals=<value optimized out>, args=0x7ffa7fcd7568, argcount=3,
    kws=0x100a810, kwcount=0, defs=0x0, defcount=0, closure=0x0) at ../Python/ceval.c:2858
#46 0x00000000004dd5b9 in function_call (func=0x7ffa84391f50, arg=0x7ffa7fcd7550, kw=0x10c4810) at ../Objects/funcobject.c:517
#47 0x0000000000418c33 in PyObject_Call (func=0x38, arg=0x7ffa76ca7260, kw=0x7ffa76ca7260) at ../Objects/abstract.c:1861
#48 0x000000000048f927 in PyEval_EvalFrameEx (f=0x107c860, throwflag=<value optimized out>) at ../Python/ceval.c:3875
#49 0x00000000004927cd in PyEval_EvalCodeEx (co=0x7ffa803c2558, globals=<value optimized out>, locals=<value optimized out>, args=0x7ffa8039b488, argcount=4,
    kws=0xd71640, kwcount=0, defs=0x0, defcount=0, closure=0x0) at ../Python/ceval.c:2858
#50 0x00000000004dd5b9 in function_call (func=0x7ffa7fd05c08, arg=0x7ffa8039b470, kw=0xdbb700) at ../Objects/funcobject.c:517
#51 0x0000000000418c33 in PyObject_Call (func=0x38, arg=0x7ffa76ca7260, kw=0x7ffa76ca7260) at ../Objects/abstract.c:1861
#52 0x000000000048f927 in PyEval_EvalFrameEx (f=0x10aa120, throwflag=<value optimized out>) at ../Python/ceval.c:3875
#53 0x00000000004927cd in PyEval_EvalCodeEx (co=0x7ffa843bf558, globals=<value optimized out>, locals=<value optimized out>, args=0x7ffa8449d8a8, argcount=4, kws=0x0,
    kwcount=0, defs=0x0, defcount=0, closure=0x0) at ../Python/ceval.c:2858
---Type <return> to continue, or q <return> to quit---
#54 0x00000000004dd4c2 in function_call (func=0x7ffa81db1050, arg=0x7ffa8449d890, kw=0x0) at ../Objects/funcobject.c:517
#55 0x0000000000418c33 in PyObject_Call (func=0x38, arg=0x7ffa76ca7260, kw=0x7ffa76ca7260) at ../Objects/abstract.c:1861
#56 0x000000000048f927 in PyEval_EvalFrameEx (f=0xe286c0, throwflag=<value optimized out>) at ../Python/ceval.c:3875
#57 0x00000000004927cd in PyEval_EvalCodeEx (co=0x7ffa843bf6c0, globals=<value optimized out>, locals=<value optimized out>, args=0x7ffa81de6e28, argcount=1,
    kws=0xdbece0, kwcount=0, defs=0x0, defcount=0, closure=0x0) at ../Python/ceval.c:2858
#58 0x00000000004dd5b9 in function_call (func=0x7ffa81db11b8, arg=0x7ffa81de6e10, kw=0xdbb830) at ../Objects/funcobject.c:517
#59 0x0000000000418c33 in PyObject_Call (func=0x38, arg=0x7ffa76ca7260, kw=0x7ffa76ca7260) at ../Objects/abstract.c:1861
#60 0x000000000048f927 in PyEval_EvalFrameEx (f=0xe28490, throwflag=<value optimized out>) at ../Python/ceval.c:3875
#61 0x00000000004927cd in PyEval_EvalCodeEx (co=0x7ffa843bf4e0, globals=<value optimized out>, locals=<value optimized out>, args=0xe28448, argcount=2, kws=0xe28458,
    kwcount=0, defs=0x0, defcount=0, closure=0x0) at ../Python/ceval.c:2858
#62 0x0000000000490cf3 in PyEval_EvalFrameEx (f=0xe282c0, throwflag=<value optimized out>) at ../Python/ceval.c:3691
#63 0x00000000004920e2 in PyEval_EvalFrameEx (f=0xe1e900, throwflag=<value optimized out>) at ../Python/ceval.c:3681
#64 0x00000000004920e2 in PyEval_EvalFrameEx (f=0xcf24e0, throwflag=<value optimized out>) at ../Python/ceval.c:3681
#65 0x00000000004927cd in PyEval_EvalCodeEx (co=0x7ffa844b1378, globals=<value optimized out>, locals=<value optimized out>, args=0x0, argcount=0, kws=0x0, kwcount=0,
    defs=0x0, defcount=0, closure=0x0) at ../Python/ceval.c:2858
#66 0x00000000004929c2 in PyEval_EvalCode (co=0x38, globals=0x7ffa76ca7260, locals=0x7ffa76ca7260) at ../Python/ceval.c:514
#67 0x00000000004b2678 in PyRun_FileExFlags (fp=0xcd3010, filename=0x7fff8c52b656 "/usr/bin/bzr", start=<value optimized out>, globals=0xcf6820, locals=0xcf6820,
    closeit=1, flags=0x7fff8c529780) at ../Python/pythonrun.c:1273
#68 0x00000000004b291b in PyRun_SimpleFileExFlags (fp=0xcd3010, filename=0x7fff8c52b656 "/usr/bin/bzr", closeit=1, flags=0x7fff8c529780) at ../Python/pythonrun.c:879
#69 0x000000000041488a in Py_Main (argc=5, argv=<value optimized out>) at ../Modules/main.c:532
#70 0x00007ffa83711466 in __libc_start_main () from /lib/libc.so.6
#71 0x0000000000413ca9 in _start ()