On Linux it crashes at startup because the pandas library can not find the cmath module, perhaps you should explicitly reference it in the include_modules of your setup.py (if you are using the dist tool of Panda3D).
Known pipe types: glxGraphicsPipe (all display modules loaded.) rebuilding walls setting wall: 0:4 setting wall: 1:4 setting wall: 2:4 setting wall: 3:4 :pnmimage:png(warning): iCCP: known incorrect sRGB profile :pnmimage:png(warning): iCCP: known incorrect sRGB profile :pnmimage:png(warning): iCCP: known incorrect sRGB profile :pnmimage:png(warning): iCCP: known incorrect sRGB profile :pnmimage:png(warning): iCCP: known incorrect sRGB profile :pnmimage:png(warning): iCCP: known incorrect sRGB profile :pnmimage:png(warning): iCCP: known incorrect sRGB profile :pnmimage:png(warning): iCCP: known incorrect sRGB profile :pnmimage:png(warning): iCCP: known incorrect sRGB profile :pnmimage:png(warning): iCCP: known incorrect sRGB profile :pnmimage:png(warning): iCCP: known incorrect sRGB profile :pnmimage:png(warning): iCCP: known incorrect sRGB profile :pnmimage:png(warning): iCCP: known incorrect sRGB profile setting stars: 0 :pnmimage:png(warning): iCCP: known incorrect sRGB profile :pnmimage:png(warning): iCCP: known incorrect sRGB profile pandas.compat:97: UserWarning: Could not import the lzma module. Your installed Python is incomplete. Attempting to use lzma compression will result in a RuntimeError. Traceback (most recent call last): File "__main__", line 314, in File "__main__", line 112, in __init__ File "importlib._bootstrap", line 1007, in _find_and_load File "importlib._bootstrap", line 986, in _find_and_load_unlocked File "importlib._bootstrap", line 680, in _load_unlocked File "importlib._bootstrap", line 838, in exec_module File "Topics", line 7, in File "importlib._bootstrap", line 1007, in _find_and_load File "importlib._bootstrap", line 972, in _find_and_load_unlocked File "importlib._bootstrap", line 228, in _call_with_frames_removed File "importlib._bootstrap", line 1007, in _find_and_load File "importlib._bootstrap", line 972, in _find_and_load_unlocked File "importlib._bootstrap", line 228, in _call_with_frames_removed File "importlib._bootstrap", line 1007, in _find_and_load File "importlib._bootstrap", line 972, in _find_and_load_unlocked File "importlib._bootstrap", line 228, in _call_with_frames_removed File "importlib._bootstrap", line 1007, in _find_and_load File "importlib._bootstrap", line 986, in _find_and_load_unlocked File "importlib._bootstrap", line 680, in _load_unlocked File "importlib._bootstrap", line 838, in exec_module File "pandas", line 179, in File "importlib._bootstrap", line 1007, in _find_and_load File "importlib._bootstrap", line 986, in _find_and_load_unlocked File "importlib._bootstrap", line 680, in _load_unlocked File "importlib._bootstrap", line 838, in exec_module File "pandas.testing", line 5, in File "importlib._bootstrap", line 1007, in _find_and_load File "importlib._bootstrap", line 986, in _find_and_load_unlocked File "importlib._bootstrap", line 680, in _load_unlocked File "importlib._bootstrap", line 838, in exec_module File "pandas._testing", line 27, in File "importlib._bootstrap", line 1007, in _find_and_load File "importlib._bootstrap", line 986, in _find_and_load_unlocked File "importlib._bootstrap", line 680, in _load_unlocked File "importlib._bootstrap", line 838, in exec_module File "pandas._libs.testing", line 1, in File "imp", line 342, in load_dynamic File "importlib._bootstrap", line 711, in _load File "importlib._bootstrap", line 680, in _load_unlocked File "importlib._bootstrap_external", line 1116, in exec_module File "importlib._bootstrap", line 228, in _call_with_frames_removed File "pandas/_libs/testing.pyx", line 1, in init pandas._libs.testing File "importlib._bootstrap", line 1007, in _find_and_load File "importlib._bootstrap", line 984, in _find_and_load_unlocked ModuleNotFoundError: No module named 'cmath'