Python 2.7字符串格式

Question

from datetime import datetime
now = datetime.now()
sentence = "{:%B %d %Y}".format(now=datetime.now)

If for some reason I have to use an import from keyword how would I format this in three lines like the example above? My exact question is I don't know how to use the format parameters in this case.

Answer 1

1. You need pass datetime.now() , not datetime.now method itself.
2. specify now in the format string to use the keyword argument. Or you can omit now if you pass the datetime object as a positional argument.

---

>>> from datetime import datetime
>>> now = datetime.now()
>>> "{now:%B %d %Y}".format(now=datetime.now())  # keyword argument
'November 12 2016'

>>> "{:%B %d %Y}".format(datetime.now())  # positional argument
'November 12 2016'
>>> "{0:%B %d %Y}".format(datetime.now())  # positional argument + explicit 0 (first arg)
'November 12 2016'

Answer 2

as furas commented above, this works:

>>> from datetime import datetime
>>> sentence = datetime.now().strftime("%B %d %Y")
>>> print sentence
November 12 2016
>>>