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I have a date string of the form '2009/05/13 19:19:30 -0400'. It seems that previous versions of Python may have supported a %z format tag in strptime for the trailing timezone specification, but 2.6.x seems to have removed that.
What's the right way to parse this string into a datetime object?
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Python has a built-in method to parse dates, strptime . This example takes the string “2020–01–01 14:00” and parses it to a datetime object. The documentation for strptime provides a great overview of all format-string options.
To convert Python datetime to string, use the strftime() function. The strftime() method is a built-in Python method that returns the string representing date and time using date, time, or datetime object.
Parse String to List With the str.split() function to split the string on the basis of each , . The str. split() function takes a delimiter/separator as an input parameter, splits the calling string based on the delimiter, and returns a list of substrings.
One of the modules that helps you work with date and time in Python is datetime . With the datetime module, you can get the current date and time, or the current date and time in a particular time zone.
You can use the parse function from dateutil:
>>> from dateutil.parser import parse >>> d = parse('2009/05/13 19:19:30 -0400') >>> d datetime.datetime(2009, 5, 13, 19, 19, 30, tzinfo=tzoffset(None, -14400)) This way you obtain a datetime object you can then use.
As answered, dateutil2.0 is written for Python 3.0 and does not work with Python 2.x. For Python 2.x dateutil1.5 needs to be used.
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%z is supported in Python 3.2+:
>>> from datetime import datetime >>> datetime.strptime('2009/05/13 19:19:30 -0400', '%Y/%m/%d %H:%M:%S %z') datetime.datetime(2009, 5, 13, 19, 19, 30, tzinfo=datetime.timezone(datetime.timedelta(-1, 72000))) On earlier versions:
from datetime import datetime date_str = '2009/05/13 19:19:30 -0400' naive_date_str, _, offset_str = date_str.rpartition(' ') naive_dt = datetime.strptime(naive_date_str, '%Y/%m/%d %H:%M:%S') offset = int(offset_str[-4:-2])*60 + int(offset_str[-2:]) if offset_str[0] == "-": offset = -offset dt = naive_dt.replace(tzinfo=FixedOffset(offset)) print(repr(dt)) # -> datetime.datetime(2009, 5, 13, 19, 19, 30, tzinfo=FixedOffset(-240)) print(dt) # -> 2009-05-13 19:19:30-04:00 where FixedOffset is a class based on the code example from the docs:
from datetime import timedelta, tzinfo class FixedOffset(tzinfo): """Fixed offset in minutes: `time = utc_time + utc_offset`.""" def __init__(self, offset): self.__offset = timedelta(minutes=offset) hours, minutes = divmod(offset, 60) #NOTE: the last part is to remind about deprecated POSIX GMT+h timezones # that have the opposite sign in the name; # the corresponding numeric value is not used e.g., no minutes self.__name = '<%+03d%02d>%+d' % (hours, minutes, -hours) def utcoffset(self, dt=None): return self.__offset def tzname(self, dt=None): return self.__name def dst(self, dt=None): return timedelta(0) def __repr__(self): return 'FixedOffset(%d)' % (self.utcoffset().total_seconds() / 60) If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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