Whilst you might have to define "in the standard library", pip is added in PEP 453 [0] (accepted in 2013), in a similar capacity to venv:
> However, to avoid recommending a tool that CPython does not provide, it is further proposed that the pip [18] package manager be made available by default when installing CPython 3.4 or later and when creating virtual environments using the standard library's venv module via the pyvenv command line utility.