Whoa boy, is it ever, but maybe not for the reason you're thinking. ie it isn't caused by people typing `apt-get install python`.
There are many packages that have Python as a dependency these days. For example, on my Ubuntu system:
> ~$ apt-cache rdepends python|wc -l
> 4649
I think the best illustration of how this can happen is installing postgres libraries needed to build the psycopg2 PG client. If you know to install `libpq-dev` then you're great. But if you do something that on the surface feels totally reasonable, like installing the `postgresql-client` package... guess what? You just installed another Python interpreter.
There are many packages that have Python as a dependency these days. For example, on my Ubuntu system:
> ~$ apt-cache rdepends python|wc -l
> 4649
I think the best illustration of how this can happen is installing postgres libraries needed to build the psycopg2 PG client. If you know to install `libpq-dev` then you're great. But if you do something that on the surface feels totally reasonable, like installing the `postgresql-client` package... guess what? You just installed another Python interpreter.
edit: formatting