Pandas：将纳秒时间增量与时间戳相加

Question

这似乎是一个简单的问题，但我找不到答案（可能使用了错误的搜索关键字）：

import pandas as pd
pd.Timestamp(1) + pd.Timedelta(seconds=1e-9)
Out: Timestamp('1970-01-01 00:00:00.000000001')  # why? Un-intuitive

pd.Timestamp(1) + pd.Timedelta(microseconds=1e-3)
Out: Timestamp('1970-01-01 00:00:00.000000001')  # why? Un-intuitive

pd.Timestamp(1) + pd.Timedelta(nanoseconds=1)
Out: Timestamp('1970-01-01 00:00:00.000000002')  # ok, but not consistent with above ones

即使时间戳是基于以纳秒为单位的纪元的，那么为什么会出现这种（例如）不一致：

pd.Timestamp(1) + pd.Timedelta(seconds=1e-9)
Out: Timestamp('1970-01-01 00:00:00.000000001')

pd.Timestamp(1) + pd.Timedelta(seconds=1e-6)
Out: Timestamp('1970-01-01 00:00:00.000001001')

Answer 1

这是一个错误，已修复 here。