Python OverflowError从32位系统中的时间戳创建日期 [英] Python OverflowError creating date from timestamp in 32bit system

问题描述

因此，我尝试使用内置的python 运行Debian Buster的RaspberryPi4中的datetime 模块.

So I am trying to do a simple conversion of a timestamp to date using python builtin datetime module in RaspberryPi4 running Debian Buster.

该转换在我的笔记本电脑(64位Debian)上运行良好，但在Debian中引发OverflowError.以下是两个示例.

The conversion works fine in my laptop (64bit Debian) but trows a OverflowError in Debian. The 2 examples follow.

有人知道这个问题有一个简单的解决方法吗?谢谢！

Anyone knows of a simple workaround this issue? Thank you!

在64位Debian系统中:

In 64bit Debian system:

$ python3 -c "from datetime import datetime; d=datetime.fromtimestamp(int("-11486707200")); print(d.year)"

1606

在RasbberryPi(32位)Raspbian系统中:

In RasbberryPi (32bit) Raspbian system:

$ python3 -c "from datetime import datetime; d=datetime.fromtimestamp(int("-11486707200")); print(d.year)"

Traceback (most recent call last):
  File "<string>", line 1, in <module>
OverflowError: timestamp out of range for platform time_t

推荐答案

假设 -11486707200 是从纪元(Unix时间)起的秒数，您可以尝试将其添加为 timedelta 进入时代；

assuming -11486707200 is seconds since the epoch (Unix time), you could try to add it as a timedelta to the epoch;

from datetime import datetime, timedelta, timezone

d = datetime.fromtimestamp(0, tz=timezone.utc) + timedelta(seconds=-11486707200)
print(d.year)
>>> 1606

当我在32位Python 3.7.9上进行测试时，此方法有效.注意，Raspberry Pi4 CPU具有64位架构，因此它不是"32位系统".从这个意义上讲.不确定这是否是Pi的问题，但我无法测试以确保.因此，如果仍然存在，请在此处.

This works when I test on Python 3.7.9 32 bit. Note that the Raspberry Pi4 CPU has a 64bit architecture, so it's not a "32bit system" in that sense. Not sure if this is an issue of the Pi but I can't test to make sure. So if it persists, maybe ask here.

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