importmatplotlib.pyplotaspltplt.plot([1,2,3,4])plt.ylabel('some numbers')plt.show()

username@username-ubuntu:~/Desktop$ gdb --args python3 plot.pyGNU gdb (Ubuntu 7.11.1-0ubuntu1~16.5) 7.11.1Copyright (C) 2016 Free Software Foundation, Inc.License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>This is free software: you are free to change and redistribute it.There is NO WARRANTY, to the extent permitted by law.  Type "show copying"and "show warranty" for details.This GDB was configured as "x86_64-linux-gnu".Type "show configuration" for configuration details.For bug reporting instructions, please see:<http://www.gnu.org/software/gdb/bugs/>.Find the GDB manual and other documentation resources online at:<http://www.gnu.org/software/gdb/documentation/>.For help, type "help".Type "apropos word" to search for commands related to "word"...Reading symbols from python3...Reading symbols from /usr/lib/debug/.build-id/59/a8ef36ca241df24686952480966d7bc0d7c6ea.debug...done.done.(gdb) rStarting program: /usr/bin/python3 plot.py[Thread debugging using libthread_db enabled]Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".[New Thread 0x7ffff27d5700 (LWP 5997)][New Thread 0x7ffff1fd4700 (LWP 5998)][New Thread 0x7fffed7d3700 (LWP 5999)]^CThread 1 "python3" received signal SIGINT, Interrupt.0x00007ffff44fb34b in dgemm_itcopy_EXCAVATOR () from /usr/lib/libopenblas.so.0(gdb) bt#0  0x00007ffff44fb34b in dgemm_itcopy_EXCAVATOR () from /usr/lib/libopenblas.so.0#1  0x00007ffff311de89 in dgemm_nn () from /usr/lib/libopenblas.so.0#2  0x00007ffff501c49d in cblas_dgemm () from /usr/lib/libblas.so.3#3  0x00007ffff534a8e9 in ?? () from /usr/lib/python3/dist-packages/numpy/core/multiarray.cpython-35m-x86_64-linux-gnu.so#4  0x00007ffff531f7f4 in ?? () from /usr/lib/python3/dist-packages/numpy/core/multiarray.cpython-35m-x86_64-linux-gnu.so#5  0x00007ffff53202f9 in ?? () from /usr/lib/python3/dist-packages/numpy/core/multiarray.cpython-35m-x86_64-linux-gnu.so#6  0x00000000004e9ba7 in PyCFunction_Call () at ../Objects/methodobject.c:98#7  0x00000000005372f4 in call_function (oparg=<optimized out>, pp_stack=0x7fffffffcb80) at ../Python/ceval.c:4705#8  PyEval_EvalFrameEx () at ../Python/ceval.c:3236#9  0x0000000000540199 in _PyEval_EvalCodeWithName () at ../Python/ceval.c:4018#10 0x000000000053bd92 in fast_function (nk=<optimized out>, na=<optimized out>, n=<optimized out>, pp_stack=0x7fffffffcd90, func=<optimized out>)    at ../Python/ceval.c:4813#11 call_function (oparg=<optimized out>, pp_stack=0x7fffffffcd90) at ../Python/ceval.c:4730#12 PyEval_EvalFrameEx () at ../Python/ceval.c:3236#13 0x0000000000540f9b in _PyEval_EvalCodeWithName (qualname=0x0, name=0x0, closure=0x0, kwdefs=0x0, defcount=8, defs=0x7fffe5ccc920, kwcount=5, kws=<optimized out>,     argcount=<optimized out>, args=<optimized out>, locals=<optimized out>, globals=<optimized out>, _co=<code at remote 0x7fffea8e5c00>) at ../Python/ceval.c:4018#14 PyEval_EvalCodeEx () at ../Python/ceval.c:4039#15 0x00000000004ebe37 in function_call.lto_priv () at ../Objects/funcobject.c:627#16 0x00000000005c1797 in PyObject_Call () at ../Objects/abstract.c:2165#17 0x00000000004fb9ce in method_call.lto_priv () at ../Objects/classobject.c:330#18 0x00000000005c1797 in PyObject_Call () at ../Objects/abstract.c:2165#19 0x0000000000574999 in slot_tp_init () at ../Objects/typeobject.c:6268#20 0x000000000057f03c in type_call.lto_priv () at ../Objects/typeobject.c:905#21 0x00000000005c1797 in PyObject_Call () at ../Objects/abstract.c:2165#22 0x000000000053920b in ext_do_call (nk=<optimized out>, na=0, flags=<optimized out>, pp_stack=0x7fffffffd168, func=<type at remote 0x155fdd8>)    at ../Python/ceval.c:5034#23 PyEval_EvalFrameEx () at ../Python/ceval.c:3275#24 0x0000000000540f9b in _PyEval_EvalCodeWithName (qualname=0x0, name=0x0, closure=0x0, kwdefs=0x0, defcount=0, defs=0x0, kwcount=6, kws=<optimized out>,     argcount=<optimized out>, args=<optimized out>, locals=<optimized out>, globals=<optimized out>, _co=<code at remote 0x7fffea973930>) at ../Python/ceval.c:4018#25 PyEval_EvalCodeEx () at ../Python/ceval.c:4039#26 0x00000000004ebe37 in function_call.lto_priv () at ../Objects/funcobject.c:627#27 0x00000000005c1797 in PyObject_Call () at ../Objects/abstract.c:2165#28 0x000000000053920b in ext_do_call (nk=<optimized out>, na=2, flags=<optimized out>, pp_stack=0x7fffffffd418, func=<function at remote 0x7fffe64fc6a8>)    at ../Python/ceval.c:5034#29 PyEval_EvalFrameEx () at ../Python/ceval.c:3275#30 0x00000000005406df in _PyEval_EvalCodeWithName () at ../Python/ceval.c:4018#31 0x000000000053bd92 in fast_function (nk=<optimized out>, na=<optimized out>, n=<optimized out>, pp_stack=0x7fffffffd620, func=<optimized out>)    at ../Python/ceval.c:4813#32 call_function (oparg=<optimized out>, pp_stack=0x7fffffffd620) at ../Python/ceval.c:4730#33 PyEval_EvalFrameEx () at ../Python/ceval.c:3236#34 0x000000000053b7e4 in fast_function (nk=<optimized out>, na=<optimized out>, n=<optimized out>, pp_stack=0x7fffffffd750, func=<optimized out>)---Type <return> to continue, or q <return> to quit---    at ../Python/ceval.c:4803#35 call_function (oparg=<optimized out>, pp_stack=0x7fffffffd750) at ../Python/ceval.c:4730#36 PyEval_EvalFrameEx () at ../Python/ceval.c:3236#37 0x0000000000540199 in _PyEval_EvalCodeWithName () at ../Python/ceval.c:4018#38 0x000000000053c1d0 in fast_function (nk=<optimized out>, na=<optimized out>, n=<optimized out>, pp_stack=0x7fffffffd960, func=<optimized out>)    at ../Python/ceval.c:4813#39 call_function (oparg=<optimized out>, pp_stack=0x7fffffffd960) at ../Python/ceval.c:4730#40 PyEval_EvalFrameEx () at ../Python/ceval.c:3236#41 0x0000000000540199 in _PyEval_EvalCodeWithName () at ../Python/ceval.c:4018#42 0x000000000053c1d0 in fast_function (nk=<optimized out>, na=<optimized out>, n=<optimized out>, pp_stack=0x7fffffffdb70, func=<optimized out>)    at ../Python/ceval.c:4813#43 call_function (oparg=<optimized out>, pp_stack=0x7fffffffdb70) at ../Python/ceval.c:4730#44 PyEval_EvalFrameEx () at ../Python/ceval.c:3236#45 0x0000000000540199 in _PyEval_EvalCodeWithName () at ../Python/ceval.c:4018#46 0x0000000000540e4f in PyEval_EvalCodeEx () at ../Python/ceval.c:4039#47 PyEval_EvalCode (co=<optimized out>, globals=<optimized out>, locals=<optimized out>) at ../Python/ceval.c:777#48 0x000000000060c272 in run_mod () at ../Python/pythonrun.c:976#49 0x000000000060e71a in PyRun_FileExFlags () at ../Python/pythonrun.c:929#50 0x000000000060ef0c in PyRun_SimpleFileExFlags () at ../Python/pythonrun.c:396#51 0x000000000063fb26 in run_file (p_cf=0x7fffffffdde0, filename=0xa74280 L"plot.py", fp=0xb7d610) at ../Modules/main.c:318#52 Py_Main () at ../Modules/main.c:768#53 0x00000000004cfeb1 in main () at ../Programs/python.c:65#54 0x00007ffff7810830 in __libc_start_main (main=0x4cfdd0 <main>, argc=2, argv=0x7fffffffdff8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>,     stack_end=0x7fffffffdfe8) at ../csu/libc-start.c:291#55 0x00000000005d6049 in _start ()(gdb) qA debugging session is active.Inferior 1 [process 5993] will be killed.Quit anyway? (y or n) y