# openmc-plot-mesh-tally **URL:** \ **Category:** User Support\ **Created:** [October 18, 2018, 10:29am UTC](https://openmc.discourse.group/t/openmc-plot-mesh-tally/364 "2018-10-18T10:29:03Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![shabudarda](https://yyz2.discourse-cdn.com/free1/user_avatar/openmc.discourse.group/shabudarda/32/497_2.png) [@shabudarda](https://openmc.discourse.group/u/shabudarda)\ **Post date:** [October 18, 2018, 10:29am UTC](https://openmc.discourse.group/t/openmc-plot-mesh-tally/364/1 "2018-10-18T10:29:03Z")
Hello, I am trying to follow the guide here [https://openmc.readthedocs.io/en/stable/usersguide/processing.html?highlight=plot%20tallies](https://openmc.readthedocs.io/en/stable/usersguide/processing.html?highlight=plot%20tallies) plotting in 2D. I want to plot a mesh tally in two dimension. I am running the ## `openmc-plot-mesh-tally` directly in my project directory. I got this below error Sharifs-MacBook-Pro:JSA sharifabudarda$ openmc-plot-mesh-tally /Users/sharifabudarda/miniconda3/lib/python3.6/site-packages/h5py/ **init**.py:36: FutureWarning: Conversion of the second argument of issubdtype from `float` to `np.floating` is deprecated. In future, it will be treated as `np.float64 == np.dtype(float).type`. from .\_conv import register\_converters as \_register\_converters 2018-10-18 13:27:58.800 python[5891:300094] -[NSApplication \_setup:]: unrecognized selector sent to instance 0x7f95bf05efd0 2018-10-18 13:27:58.804 python[5891:300094] \*\*\* Terminating app due to uncaught exception ‘NSInvalidArgumentException’, reason: ‘-[NSApplication \_setup:]: unrecognized selector sent to instance 0x7f95bf05efd0’ \*\*\* First throw call stack: ( 0 CoreFoundation 0x00007fff3bbbd571 \_\_exceptionPreprocess + 256 1 libobjc.A.dylib 0x00007fff67b6aefb objc\_exception\_throw + 48 2 CoreFoundation 0x00007fff3bc3aca5 -[NSObject(NSObject) \_\_retain\_OA] + 0 3 CoreFoundation 0x00007fff3bb5c7fe _ **forwarding** _ + 1468 4 CoreFoundation 0x00007fff3bb5c1b8 \_CF\_forwarding\_prep\_0 + 120 5 libtk8.6.dylib 0x00000001092bd46f TkpInit + 383 6 libtk8.6.dylib 0x000000010921621e Initialize + 2622 7 \_tkinter.cpython-36m-darwin.so 0x000000010903ca16 \_tkinter\_create + 1174 8 python 0x0000000107fe0b78 \_PyCFunction\_FastCallDict + 200 9 python 0x00000001080b824f call\_function + 143 10 python 0x00000001080b5f4c \_PyEval\_EvalFrameDefault + 47100 11 python 0x00000001080a9589 \_PyEval\_EvalCodeWithName + 425 12 python 0x00000001080b8e15 \_PyFunction\_FastCallDict + 373 13 python 0x0000000107f5ee80 \_PyObject\_FastCallDict + 320 14 python 0x0000000107f86468 method\_call + 136 15 python 0x0000000107f664ee PyObject\_Call + 62 16 python 0x0000000108008065 slot\_tp\_init + 117 17 python 0x000000010800c5b1 type\_call + 241 18 python 0x0000000107f5edf1 \_PyObject\_FastCallDict + 177 19 python 0x00000001080b8348 call\_function + 392 20 python 0x00000001080b5f4c \_PyEval\_EvalFrameDefault + 47100 21 python 0x00000001080a9589 \_PyEval\_EvalCodeWithName + 425 22 python 0x00000001080a3d99 builtin\_exec + 345 23 python 0x0000000107fe0b78 \_PyCFunction\_FastCallDict + 200 24 python 0x00000001080b824f call\_function + 143 25 python 0x00000001080b5f4c \_PyEval\_EvalFrameDefault + 47100 26 python 0x00000001080b85fc fast\_function + 188 27 python 0x00000001080b82ac call\_function + 236 28 python 0x00000001080b5f4c \_PyEval\_EvalFrameDefault + 47100 29 python 0x00000001080b85fc fast\_function + 188 30 python 0x00000001080b82ac call\_function + 236 31 python 0x00000001080b5f4c \_PyEval\_EvalFrameDefault + 47100 32 python 0x00000001080a9589 \_PyEval\_EvalCodeWithName + 425 33 python 0x000000010810163c PyRun\_FileExFlags + 252 34 python 0x0000000108100dee PyRun\_SimpleFileExFlags + 366 35 python 0x0000000108126dd6 Py\_Main + 3718 36 python 0x0000000107f56e7d main + 509 37 libdyld.dylib 0x00007fff68c31085 start + 1 ) libc++abi.dylib: terminating with uncaught exception of type NSException Abort trap: 6 What I do here? Thanks. ---
**Author:** ![paulromano](https://yyz2.discourse-cdn.com/free1/user_avatar/openmc.discourse.group/paulromano/32/486_2.png) [@paulromano](https://openmc.discourse.group/u/paulromano)\ **Post date:** [October 18, 2018, 1:11pm UTC](https://openmc.discourse.group/t/openmc-plot-mesh-tally/364/2 "2018-10-18T13:11:20Z")
Looks like this could be a bug in openmc-plot-mesh-tally. See this [stack overflow post](https://stackoverflow.com/questions/32019556/matplotlib-crashing-tkinter-application) with a similar problem and solution. If you’re comfortable, you can try making changes in the openmc-plot-mesh-tally script, adding the following: import matplotlib matplotlib.use(“TkAgg”) ---
**Author:** ![shabudarda](https://yyz2.discourse-cdn.com/free1/user_avatar/openmc.discourse.group/shabudarda/32/497_2.png) [@shabudarda](https://openmc.discourse.group/u/shabudarda)\ **Post date:** [October 18, 2018, 1:19pm UTC](https://openmc.discourse.group/t/openmc-plot-mesh-tally/364/3 "2018-10-18T13:19:30Z")
Hello Dr, i was using mac system when i post this. In mac system this does not work and shows this error. I move into my linux system and run the same command there. It worked. In both platform i have openmc veraion 10 installed. I will follow up with your guide above. Thanks for the reply. ---
**Author:** ![shabudarda](https://yyz2.discourse-cdn.com/free1/user_avatar/openmc.discourse.group/shabudarda/32/497_2.png) [@shabudarda](https://openmc.discourse.group/u/shabudarda)\ **Post date:** [October 18, 2018, 10:49pm UTC](https://openmc.discourse.group/t/openmc-plot-mesh-tally/364/4 "2018-10-18T22:49:44Z")
Hello, Dr, Can you share me the directory of the script file stored in? I am in mac OS X10.14. I have miniconda3 installed. I looked for the main script file I found two of the script ‎⁨MAC OS X⁩ ▸ ⁨Users⁩ ▸ ⁨xxxxx ▸ ⁨miniconda3⁩ ▸ ⁨pkgs⁩ ▸ ⁨openmc-0.10.0-0⁩ ▸ ⁨lib⁩ ▸ ⁨python3.6⁩ ▸ ⁨site-packages⁩ ▸ ⁨openmc-0.10.0-py3.6-macosx-10.9-x86\_64.egg-info⁩ ▸ ⁨scripts⁩ and another one is on ‎⁨MAC OS X⁩ ▸ ⁨Users⁩ ▸ ⁨sharifabudarda⁩ ▸ ⁨miniconda3⁩ ▸ ⁨pkgs⁩ ▸ ⁨openmc-0.10.0-py36hb8ecfd0\_2⁩ ▸ ⁨lib⁩ ▸ ⁨python3.6⁩ ▸ ⁨site-packages⁩ ▸ ⁨openmc-0.10.0-py3.6-macosx-10.9-x86\_64.egg-info⁩ ▸ ⁨scripts⁩ I tried to change in both of them as the below image shows. Please reply if I am doing right. This is only in mac OS. In linux, it works. Thanks. ![1.png](https://global.discourse-cdn.com/free1/uploads/openmc/original/1X/4822d99fe3d7be3c39fa38e5633884cf2d7a76d8.png) ![2.png](https://global.discourse-cdn.com/free1/uploads/openmc/original/1X/11c40ff9421bb1319197dfe2564859bc07a27218.png) ---
**Author:** ![paulromano](https://yyz2.discourse-cdn.com/free1/user_avatar/openmc.discourse.group/paulromano/32/486_2.png) [@paulromano](https://openmc.discourse.group/u/paulromano)\ **Post date:** [October 19, 2018, 2:51am UTC](https://openmc.discourse.group/t/openmc-plot-mesh-tally/364/5 "2018-10-19T02:51:42Z")
I’m not too sure about the exact path on macOS, but in your case I would probably just change it in both. The change that you made looks correct to me. Best, Paul ---
**Author:** ![shabudarda](https://yyz2.discourse-cdn.com/free1/user_avatar/openmc.discourse.group/shabudarda/32/497_2.png) [@shabudarda](https://openmc.discourse.group/u/shabudarda)\ **Post date:** [October 19, 2018, 2:49pm UTC](https://openmc.discourse.group/t/openmc-plot-mesh-tally/364/6 "2018-10-19T14:49:55Z")
Hello, Dr, Ok, I did update of the miniconda packages by conda update conda and also the openmc package by conda update openmc I also installed vtk package for conda and also update python package now, if I run the openmc-plot-mesh-tally I am having a different issue. The log is below. can you guide what I can do here? Thanks. Sharifs-MBP:JSA sharifabudarda$ openmc-plot-mesh-tally statepoint.555.h5 Traceback (most recent call last): File “/Users/sharifabudarda/miniconda3/bin/openmc-plot-mesh-tally”, line 4, in **import** (‘pkg\_resources’).run\_script(‘openmc==0.10.0’, ‘openmc-plot-mesh-tally’) File “/Users/sharifabudarda/miniconda3/lib/python3.6/site-packages/pkg\_resources/ **init**.py”, line 750, in run\_script self.require(requires)[0].run\_script(script\_name, ns) File “/Users/sharifabudarda/miniconda3/lib/python3.6/site-packages/pkg\_resources/ **init**.py”, line 1527, in run\_script exec(code, namespace, namespace) File “/Users/sharifabudarda/miniconda3/lib/python3.6/site-packages/openmc-0.10.0-py3.6-macosx-10.9-x86\_64.egg-info/scripts/openmc-plot-mesh-tally”, line 15, in from matplotlib.backends.backend\_tkagg import NavigationToolbar2TkAgg ImportError: cannot import name ‘NavigationToolbar2TkAgg’ ---
**Author:** ![shabudarda](https://yyz2.discourse-cdn.com/free1/user_avatar/openmc.discourse.group/shabudarda/32/497_2.png) [@shabudarda](https://openmc.discourse.group/u/shabudarda)\ **Post date:** [October 19, 2018, 3:42pm UTC](https://openmc.discourse.group/t/openmc-plot-mesh-tally/364/7 "2018-10-19T15:42:43Z")
Hello Dr, I was able to resolve the issue. Here is what I did, In “/Users/sharifabudarda/miniconda3/lib/python3.6/site-packages/openmc-0.10.0-py3.6-macosx-10.9-x86\_64.egg-info/scripts/openmc-plot-mesh-tally” I changed the NavigationToolbar2TkAgg into NavigationToolbar2Tk That does it. For me, Now I am able to run openmc-plot-mesh-tally command. Thanks for your guide. ---
**Author:** ![shabudarda](https://yyz2.discourse-cdn.com/free1/user_avatar/openmc.discourse.group/shabudarda/32/497_2.png) [@shabudarda](https://openmc.discourse.group/u/shabudarda)\ **Post date:** [October 19, 2018, 3:43pm UTC](https://openmc.discourse.group/t/openmc-plot-mesh-tally/364/8 "2018-10-19T15:43:22Z")
[https://stackoverflow.com/questions/50330320/what-to-use-instead-of-navigationtoolbar2tkagg](https://stackoverflow.com/questions/50330320/what-to-use-instead-of-navigationtoolbar2tkagg) this link has the solution