Timezone Information Missing in pytz?

Question

I\'m having a very weird problem with Python\'s pytz: it seems to have an incomplete catalog of timezones on my system (MacOS X 10.8.5, system Python 2.7.5).

Answer 1

I cannot say why your installation of pytz is broken, but here's a possible fix:

1. Download the .zip archive of pytz from the Python Package Index.
2. In Terminal.app, run pip show pytz.
3. Using the path it returns, run open /System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python (replacing my path with yours if different). This will launch a Finder window with your Python modules.
4. Find the pytz/ folder. Open it.
5. Replace the zoneinfo/ folder with the zoneinfo/ folder that's in the .zip archive you downloaded in step 1 from PyPI.

Answer 2

I had a similar exception UnknownTimeZoneError: Can not find any timezone configuration when i tried to run my app inside a docker container with the latest ubuntu images. It turned out that tzdata was missing. Installing tzdata package fixed it:

apt-get install -y tzdata

# Maybe you will need to reconfigure the timezone as well:
ln -fs /usr/share/zoneinfo/Etc/UTC /etc/localtime
dpkg-reconfigure -f noninteractive tzdata

(Use sudo if you have to)