'module' object has no attribute 'tzwhere' about pytzwhere HOT 9 CLOSED

You are importing the module tzwhere and not the class. And I should fix the documentation.
Try something like

from tzwhere import tzwhere

and that should work

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@cstich, Thank you so much.

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You are welcome :)

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By the way, this package is awesome. It took a while for me to find it, but it is exactly what I wanted.

Actually I have a list of city and state or country names and I was trying to identify their current time.
For this purpose, I combined the following four libraries:

from datetime import datetime
from geopy import geocoders
from tzwhere import tzwhere
from pytz import timezone

and the following is an example of my code:

location = "Sackville, Canada"
g = geocoders.GoogleV3()
place, (lat, lng) = g.geocode(location)
tz = tzwhere.tzwhere()
timeZoneObj = tz.tzNameAt(lat, lng)
now_time = datetime.now(timezone(timeZoneObj))

print now_time => 2015-06-26 15:56:37.425000-03:00

Do you know any more efficient way for this purpose?

Thank you again,
Iman

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Thank you.

As you are already effectively queering Google, you could just try queering Google for the timezone directly. Have a look at their API and see whether that fits your requirements.

Alternatively there is also a database of cities and their timezone - cities timezone - but I am not sure how complete the list is.

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I am actually using Google Geocoder API in order to locate the coordinates of addresses, cities, states, or countries. I think this is important, because these addresses are not formatted appropriately. Some of them may include only country name and others might include city and state. After having the coordinates, it's not efficient for me to use Google Time Zone API, because it doubles the number of requests that my program sends to Google APIs using the same key, which might exceed my quota.

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That makes sense and the code you posted looks very reasonable to me.

The only way and from the top of my head to speed up your code would be to parallize it. That should be pretty straightforward.

Edit: Forget what I just said. Sometimes I am too quick to answer :D

There is an obvious bottleneck in your code. If you have more than one point to look-up, do not re-initialize the tzwhere class. I also doubt that you have to initialize the geocoders class every time. Something like this should be quite faster if you have more than one point. This is also now trivial to turn into a function, you feed to a parallel version of map if you want to go that way.

tz = tzwhere.tzwhere()
g = geocoders.GoogleV3()
locations = ["Sackville, Canada", "London, UK"]

for l in locations:
    place, (lat, lng) = g.geocode(l)
    timeZoneObj = tz.tzNameAt(lat, lng)
    now_time = datetime.now(timezone(timeZoneObj))
    print(now_time)

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@ImanYZ this comment is just to make sure you see my edited answer from just a second ago. I am not sure how github handles edits and notifications. Better be safe than sorry.

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@cstich, Thank you so much for your comment.

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