New issue 3059: utcfromtimestamp fails with ValueError
https://bitbucket.org/pypy/pypy/issues/3059/utcfromtimestamp-fails-with-valueerror
Ram Rachum:
```
Python 3.6.1 (784b254d6699, Apr 16 2019, 12:10:48)
[PyPy 7.1.1-beta0 with MSC v.1910 32 bit]
```
`utcfromtimestamp(0)` is supposed to return `datetime.datetime(1970, 1, 1, 0,
0)`, that’s what it does on CPython.
```
In [8]: datetime.datetime.utcfromtimestamp(0)
---------------------------------------------------------------------------
ValueError Traceback (most recent call last)
<ipython-input-8-4200fea8baa6> in <module>
----> 1 datetime.datetime.utcfromtimestamp(0)
C:\pypy3\lib-python\3\datetime.py in utcfromtimestamp(cls, t)
1482 def utcfromtimestamp(cls, t):
1483 """Construct a naive UTC datetime from a POSIX timestamp."""
-> 1484 return cls._fromtimestamp(t, True, None)
1485
1486 @classmethod
C:\pypy3\lib-python\3\datetime.py in _fromtimestamp(cls, t, utc, tz)
1457 # Let's probe 24 hours in the past to detect a transition
1458 max_fold_seconds = 24 * 3600
-> 1459 y, m, d, hh, mm, ss = converter(t - max_fold_seconds)[:6]
1460 probe1 = cls(y, m, d, hh, mm, ss, us, tz)
1461 trans = result - probe1 - timedelta(0, max_fold_seconds)
ValueError: Invalid argument
```
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