… month.

The presence of the values in the error message gives a stronger hint as
to what went wrong.

```
>>> datetime.strptime("2.29", "%m.%d")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
    datetime.strptime("2.29", "%m.%d")
    ~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
  File ".../Lib/_strptime.py", line 565, in _strptime_datetime
    return cls(*args)
           ~~~^^^^^^^
ValueError: day 29 is out of range for month 2 in year 1900
```