Access denied error in serial communications

[abessman (Alexander Bessman)]

@Md_Aslam

There are 3 library for serial in python
1.) serial
2.) pyserial
3.) pySerial

No, this is not correct. Pip is not case sensitive. pyserial and pySerial are the same thing.

I uninstalled the python then reinstall it, after reinstalling I only downloaded “serial” and “pySerial” using “pip” and it worked.
Seems like pySerial and pyserial are two different things which were messing with each other.

Once again, serial has nothing to do with serial buses. It does not coexist well with pyserial because they share the same import name. Do not install both in the same environment. Doing so is likely the cause of the weird errors you saw earlier.