OSError: libnvToolsExt-3965bdd0.so.1: cannot open shared object file: No such file or directory code example

Example 1: OSError: libespeak.so.1: cannot open shared object file: No such file or directory

pyttsx3 problem:
It's because you don't have espeak installed on your system. That's why it is giving error

sudo apt-get update && sudo apt-get install espeak

Example 2: libcublas.so.9.0: cannot open shared object file: No such file or directory

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/cuda-9.0/lib64/