used python -v instead of python -version command, to find the version of python in my pc. does it change anything?

Solution 1:

No, python -v has not changed anything or done any harm.

Upon initialization, It will show you the modules that are being initialized and the respective files from which they are being loaded. Upon exit, it will show you the unloading information of the loaded modules. So, for understanding, you can take -v as verbose.

On the other hand, to get the version, use python -V or python --version.

Also, in these kind of situations always start with reading the man page i.e. do man python.

Solution 2:

When not sure of commands best to check man in terminal. Most packages have a man command

man python

   -v     Print  a  message each time a module is initialized, showing the
          place (filename or built-in module) from  which  it  is  loaded.
          When  given twice, print a message for each file that is checked
          for when searching for a module.  Also provides  information  on
          module cleanup at exit.

   -V ,  --version
          Prints the Python version number of the executable and exits.