After updating meltano to version 1 96 0 we are still having Meltano #troubleshooting

After updating meltano to version 1.96.0 we are st...

chris_marchetti

02/21/2022, 3:11 PM

After updating meltano to version 1.96.0 we are still having an issue with itsdangerous. The error we are getting is:

flask 1.1.4 requires itsdangerous<2.0,>=0.24, but you'll have itsdangerous 2.1.0 which is incompatible.

Has anyone else seen this behavior after updating meltano?

edgar_ramirez_mondragon

02/21/2022, 4:23 PM

Hi @chris_marchetti! We may still need to pin more dependencies... I'm curious, how did you update Meltano? Did you use

meltano upgrade

or pip?

chris_marchetti

02/21/2022, 4:34 PM

We are installing inside a docker container as part of a github action using pip.

emcp

02/21/2022, 6:25 PM

as per my Juju Charm which instantiates Meltano.. I have to add the following constraints to the python env

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pip3 install itsdangerous==1.1.0 
pip3 install importlib-metadata==4.4
pip3 install cryptography==3.4.8
pip3 install zipp==3.1.0

pip3 install meltano poetry

https://gitlab.com/jrgemcp-public/charms/meltano-charm/-/blob/main/hooks/install#L19-25

edgar_ramirez_mondragon

02/21/2022, 7:03 PM

thanks for sharing @emcp! I'm guessing the incompatible dependency might be brought by other package installed in the same venv as Meltano, so I'd recommend installing Meltano in an isolated venv:

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$ python3.9 -m venv test-install

$ source test-install/bin/activate
(test-install) > $ pip install meltano==1.96.0
...

$ which meltano
/Users/edgarramirez/Code/test-install/bin/meltano

$ meltano --version
meltano, version 1.96.0

We might end up doing something similar to Airflow's approach

andrew_stewart

03/02/2022, 12:56 AM

@edward_ryan - I’m actually running into the same issue within fresh gitpod workspces, both within and without venv’s

andrew_stewart

03/02/2022, 12:58 AM

adding those pre-installs (from @emcp above) worked.. oddly enough so does running:

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pip3 install meltano # errors 
pip3 install meltano # success!

utku

04/23/2022, 8:51 PM

I had the same issue with the following configs on a fresh installation. Ubuntu 20.04 Python 3.8.10

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pip3 install meltano

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.... 
ERROR: flask 1.1.4 has requirement itsdangerous<2.0,>=0.24, but you'll have itsdangerous 2.1.2 which is incompatible.
....

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pip3 uninstall meltano
....
pip3 install meltano
....
Installing collected packages: meltano, itsdangerous
  Attempting uninstall: itsdangerous
    Found existing installation: itsdangerous 2.1.2
    Uninstalling itsdangerous-2.1.2:
      Successfully uninstalled itsdangerous-2.1.2
Successfully installed itsdangerous-1.1.0 meltano-1.101.0

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