Because you are have an existing app in Python. Because you need some library that is not available in Go. Because you prefer Python. All are valid reasons.

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vorticalbox an hour ago | parent [-]

then why not just use threads/processes in python?

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foxygen an hour ago | parent [-]

Because they are not the same as Go-style green threads/coroutines?

	▲	regular_trash 38 minutes ago \| parent [-]
		Clearly lol. I think a good-faith interpretation of the question is: "What kinds of things is go's concurrency model suited for where the normal pythonic alternative is cumbersome/less desirable"