My recommendation would be to use an alias to "override" the python command.
An alias can be created with the same name as the core name of a command (i.e., a command without any options or arguments). In such case, it is the alias that is called (i.e., activated) first when the name is used, rather than the command with the same name. For example, an alias named ls could be created for the command ls -al as follows:
alias ls="ls -al"
ls is a commonly used command that by default lists the names of the files and directories within the current directory (i.e., the directory in which the user is currently working). The -a option instructs ls to also show any hidden files and directories, and the -l option tells it to provide detailed information about each file and subdirectory.
Such an alias can be disabled temporarily and the core command called by preceding it directly (i.e., with no spaces in between) with a backslash, i.e.,
Taken from linfo.org