Python is in part a "quick and dirty" language that nevertheless has many advanced features, which means it's a great language to easily hack something together.
Whether to use it afterwards in production... it doesn't shine in the maintainable aspect (it allows for some killer one-liners close to perl level), or in the low level performance aspect, so there might be some better alternative for a particular case.
Still, Python and in particular Python 3.x is a decent compromise between hackiness and something more serious, so it's no surprise that many choose it as a starting point.
Whether to use it afterwards in production... it doesn't shine in the maintainable aspect (it allows for some killer one-liners close to perl level), or in the low level performance aspect, so there might be some better alternative for a particular case.
Still, Python and in particular Python 3.x is a decent compromise between hackiness and something more serious, so it's no surprise that many choose it as a starting point.