starter is a naive datetime. Use pytz to make it a "US/Pacific" datetime instead and assign this converted datetime...

This worked for me:

import datetime
import pytz

fmt = '%m-%d %H:%M %Z%z'
starter = datetime.datetime(2015, 10, 21, 4, 29)

pacific = pytz.timezone('US/Pacific')
local = pacific.localize(starter)
pytz_string = local.strftime(fmt)

After a long struggle with this one: Thanks it passed.

import datetime import pytz

fmt = '%m-%d %H:%M %Z%z' starter = datetime.datetime(2015, 10, 21, 4, 29)

pacific = pytz.timezone('US/Pacific') local = pacific.localize(starter) pytz_string = local.strftime(fmt)

Kenneth says:

"You should just need to localize starter as US/Pacific"

--but how? (I guess its easier said than done..)

Some tries:

Attempt #1:

import datetime
import pytz

fmt = '%m-%d %H:%M %Z%z'
starter = datetime.datetime(2015, 10, 21, 4, 29)

pacific = pytz.timezone('US/Pacific')
fmt = '%m-%d %H:%M %Z%z'
local = starter.astimezone(pacific)

Gives this error:

Bummer! ValueError: astimezone() cannot be applied to a naive datetime

Attempt #2:

import datetime
import pytz

fmt = '%m-%d %H:%M %Z%z'
starter = datetime.datetime(2015, 10, 21, 4, 29)
start = pacific.localize(datetime.datetime(2015, 10, 21, 4, 29))
pacific = pytz.timezone('US/Pacific')
fmt = '%m-%d %H:%M %Z%z'
local = starter.localize(pacific)

Gives this error:

Bummer! AttributeError: 'datetime.datetime' object has no attribute 'localize'

(are we having fun yet?)

Dozens of attempts later:

import datetime
import pytz

fmt = '%m-%d %H:%M %Z%z'
starter = datetime.datetime(2015, 10, 21, 4, 29)
pacific = pytz.timezone('US/Pacific')
local = pacific.localize(datetime.datetime(2015, 10, 21, 4, 29))

Which moved (nudged) me on to part two of the challenge :

"Now create a variable named pytz_string by using strftime with the local datetime. Use the fmt string for the formatting."

What? Huh? Really?

Just for quick reference, I'll post below at the code Charles Harpke provided in the only other pytz_string related forum post (I could find):

https://teamtreehouse.com/forum/create-a-function-named-totimezone-that-takes-a-timezone-name-as-a-string-convert-starter-to-that-timezone-using-pytz

import datetime

import pytz

starter = pytz.utc.localize(datetime.datetime(2015, 10, 21, 23, 29))
to_timezone = pytz.timezone('US/Pacific')
fmt = '%Y-%m-%d %H:%M:%S %Z%z'
utc = pytz.utc
starter.strftime(fmt)

Of course, it's not correct (kudos to Charles for the code, though..)

...but it started me down a very long and twisty path full of trial and error attempts that ended (after much time passing ---but I wanted those 317 points gawddernit!) with a single line:

pytz_string = local.strftime(fmt)

I know you're thinking:

That's all that really needs to be added (to the code I posted above that passed for part 1 of the challenge) in order to pass part 2 of the challenge? 'fraid so.. *sigh*

I think I'll go back to some Android courses for a while..

lord after numerous attemps, i got partit im not sure how to do the markdown, havent looked to much at it. But after every = make it be a new line

import datetime import pytz fmt = '%m-%d %H:%M %Z%z' starter = datetime.datetime(2015, 10, 21, 4, 29) pacific = pytz.timezone('US/Pacific') local = pacific.localize(starter) pytz_string = local.strftime(fmt)

import datetime import pytz

fmt = '%m-%d %H:%M %Z%z' starter = datetime.datetime(2015, 10, 21, 4, 29) pacific = pytz.timezone('US/Pacific')

local = pacific.localize(starter) pytz_string = some code here.strftime(some other code here) this is what second question asked for not need to write anymore code

import datetime import pytz Don't forget to import pytz

fmt = '%m-%d %H:%M %Z%z' starter = datetime.datetime(2015, 10, 21, 4, 29) pacific = pytz.timezone('US/Pacific') you have to assign a timezone like this one

local = ****.localize(********) assing the local variable and convert starter to the timezone

I hope this help for all of those we were struggling with this question