Why did this happen whenever I opened a python file

[guzy0324]

[coc.nvim] error: Uncaught exception: Error: spawn pyenv ENOENT
at Process.ChildProcess._handle.onexit (internal/child_process.js:267:19)
at onErrorNT (internal/child_process.js:469:16)
[coc.nvim] error: Uncaught exception: Error: spawn python3.7 ENOENT
at Process.ChildProcess._handle.onexit (internal/child_process.js:267:19)
at onErrorNT (internal/child_process.js:469:16)
at processTicksAndRejections (internal/process/task_queues.js:84:21)
Uncaught exception: Error: spawn python3.6 ENOENT
at Process.ChildProcess._handle.onexit (internal/child_process.js:267:19)
at onErrorNT (internal/child_process.js:469:16)
at processTicksAndRejections (internal/process/task_queues.js:84:21)
Uncaught exception: Error: spawn C:\Python27\python.exe ENOENT
at Process.ChildProcess._handle.onexit (internal/child_process.js:267:19)
at onErrorNT (internal/child_process.js:469:16)
at processTicksAndRejections (internal/process/task_queues.js:84:21)

[asammad48]

If you use python3 on linux just replace python with python3 in spawn process