Performance difference of Python's partial vs partialmethod

partial.py

from functools import partial, partialmethod
from timeit import timeit


class Partial(Base):
    def __init__(self):
        self.p = partial(self.foo, 1)


class PartialMethod(Base):
    p = partialmethod(Base.foo, 1)

    
# `partial` is significantly faster than `partialmethod` despite
# repeated instantiation (reconfirmed by reversing test order).
print(timeit('p = Partial(); p.p()', globals=globals()))
print(timeit('p = PartialMethod(); p.p()', globals=globals()))