Tessa not working on Google Colab

[firmai]

I am in a simple colab environment, and can't get the pypi install to work, let me know if you understand whats going on.

[ymyke]

Strange. That's from a Jupyter notebook? What happens if you leave out the version specification?

[firmai]

Same problem when I leave out the version specification, can you replicate it on Colab?

[ymyke]

I gave this a try now and I get the same error as you in Colab. I assume the issue is because Colab runs Python v3.6 whereas tessa currently requires v3.9. – I will check if I can make this more lenient. See also #8

[ymyke]

Turns out that Google Colab runs Python 3.7. I just released v0.3.1 which should work with >=3.7, <3.10. I tested with Colab and it works there too.

(Nonrelated, but maybe useful in case you ever need to upgrade the Python environment in Colab: https://stackoverflow.com/questions/68657341/how-can-i-update-google-colabs-python-version)

[danilogalisteu]

I'm not able to run the basic example on Colab.

!python --version
!pip install tessa==0.3.1

installed everything:

Python 3.7.13
Looking in indexes: https://pypi.org/simple, https://us-python.pkg.dev/colab-wheels/public/simple/
Requirement already satisfied: tessa==0.3.1 in /usr/local/lib/python3.7/dist-packages (0.3.1)
Requirement already satisfied: pycoingecko>=2.2 in /usr/local/lib/python3.7/dist-packages (from tessa==0.3.1) (2.2.0)
Requirement already satisfied: pendulum>=2.1 in /usr/local/lib/python3.7/dist-packages (from tessa==0.3.1) (2.1.2)
Requirement already satisfied: frozendict>=2.3 in /usr/local/lib/python3.7/dist-packages (from tessa==0.3.1) (2.3.2)
Requirement already satisfied: investpy>=1 in /usr/local/lib/python3.7/dist-packages (from tessa==0.3.1) (1.0.8)
Requirement already satisfied: lxml>=4.4.1 in /usr/local/lib/python3.7/dist-packages (from investpy>=1->tessa==0.3.1) (4.9.0)
Requirement already satisfied: numpy>=1.17.2 in /usr/local/lib/python3.7/dist-packages (from investpy>=1->tessa==0.3.1) (1.21.6)
Requirement already satisfied: requests>=2.22.0 in /usr/local/lib/python3.7/dist-packages (from investpy>=1->tessa==0.3.1) (2.23.0)
Requirement already satisfied: Unidecode>=1.1.1 in /usr/local/lib/python3.7/dist-packages (from investpy>=1->tessa==0.3.1) (1.3.4)
Requirement already satisfied: pandas>=0.25.1 in /usr/local/lib/python3.7/dist-packages (from investpy>=1->tessa==0.3.1) (1.3.5)
Requirement already satisfied: setuptools>=41.2.0 in /usr/local/lib/python3.7/dist-packages (from investpy>=1->tessa==0.3.1) (57.4.0)
Requirement already satisfied: pytz>=2019.3 in /usr/local/lib/python3.7/dist-packages (from investpy>=1->tessa==0.3.1) (2022.1)
Requirement already satisfied: python-dateutil>=2.7.3 in /usr/local/lib/python3.7/dist-packages (from pandas>=0.25.1->investpy>=1->tessa==0.3.1) (2.8.2)
Requirement already satisfied: pytzdata>=2020.1 in /usr/local/lib/python3.7/dist-packages (from pendulum>=2.1->tessa==0.3.1) (2020.1)
Requirement already satisfied: six>=1.5 in /usr/local/lib/python3.7/dist-packages (from python-dateutil>=2.7.3->pandas>=0.25.1->investpy>=1->tessa==0.3.1) (1.15.0)
Requirement already satisfied: idna<3,>=2.5 in /usr/local/lib/python3.7/dist-packages (from requests>=2.22.0->investpy>=1->tessa==0.3.1) (2.10)
Requirement already satisfied: chardet<4,>=3.0.2 in /usr/local/lib/python3.7/dist-packages (from requests>=2.22.0->investpy>=1->tessa==0.3.1) (3.0.4)
Requirement already satisfied: certifi>=2017.4.17 in /usr/local/lib/python3.7/dist-packages (from requests>=2.22.0->investpy>=1->tessa==0.3.1) (2022.6.15)
Requirement already satisfied: urllib3!=1.25.0,!=1.25.1,<1.26,>=1.21.1 in /usr/local/lib/python3.7/dist-packages (from requests>=2.22.0->investpy>=1->tessa==0.3.1) (1.24.3)

but the code:

from tessa import price_history
df, currency = price_history("Australia 30Y", "bond")

failed:

---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
[<ipython-input-2-e427b538f43f>](https://localhost:8080/#) in <module>()
----> 1 from tessa import price_history
      2 df, currency = price_history("Australia 30Y", "bond")

[/usr/local/lib/python3.7/dist-packages/tessa/__init__.py](https://localhost:8080/#) in <module>()
      1 __version__ = "0.3.1"
      2 
----> 3 from .price import price_history, price_point, price_point_strict, price_latest
      4 from .search import search

[/usr/local/lib/python3.7/dist-packages/tessa/price.py](https://localhost:8080/#) in <module>()
     11 
     12 @freezeargs
---> 13 @functools.cache
     14 def price_history(
     15     query: str, type_: str, country: str = None, currency_preference: str = "usd"

AttributeError: module 'functools' has no attribute 'cache'

Before Python 3.9, the decorator is functools.lru_cache instead. I can't see how it could work on Python 3.7. How did you test it @ymyke?

[ymyke]

I published v0.3.2 just now, which should finally work in Colab. Can you confirm, @danilogalisteu ?

[danilogalisteu]

v0.3.2 is working in Google Colab with Python 3.7.13. I'm not able to test on Python 3.9 at the moment. Thanks!

[ymyke]

Great, thanks!