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Websocket Error - Anyone else getting this?

See original GitHub issue

Several months back I installed alpaca, zipline, pylivetrader etc to test these platforms out and play around with them. After some trouble-shooting everything went well and it all worked as expected.

I’ve just come back and tried to reinstall (as I no longer have the original test installation) and now I am confronted with this error: Collecting websockets>=8.0 (from alpaca-trade-api>=0.38->pylivetrader) ERROR: Could not find a version that satisfies the requirement websockets>=8.0 (from alpaca-trade-api>=0.38->pylivetrader) (from versions: 1.0, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 3.0, 3.1, 3.2, 3.3, 3.4, 4.0, 4.0.1, 5.0, 5.0.1, 6.0, 7.0) ERROR: No matching distribution found for websockets>=8.0 (from alpaca-trade-api>=0.38->pylivetrader)

I’ve spent as much time as I can trying to resolve it but am not able to make any progress on it.

For clarification:

Host Machine Macbook
VMware
Guest OS = Ubuntu 16.04

I have changed nothing on this particular machine other than delete the original pylivetrader (etc) installation after I had finished several months back yet now this error is raised no matter which method I use to install pylivetrader, alpaca-trade-api, zipline, pipeline-live etc.

If anyone has any insight onto this I’d be particularly grateful.

Issue Analytics

State:
Created 4 years ago
Comments:6 (3 by maintainers)

Top GitHub Comments

3reactions

CapitalZecommented, Sep 11, 2019

I had followed every step I could to ensure my venv was solely running python 3.6

But in the error codes there were clear python conflicts, as you stated.

In the end I solved it, amongst some other conflicts in my system, with:

sudo apt-get install python3.6-dev

I hope this helps someone else; it had me snagged for days.

FYI, the exact sequence I underwent was:

$ sudo add-apt-repository ppa:jonathonf/python-3.6 $ sudo apt-get update $ sudo apt-get install python3.6 $ sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.5 1 $ sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.6 2 $ sudo update-alternatives --config python3 (then type 2 and press enter) $ python3 -V (to check version Python 3 running) $ sudo apt-get install python3-pip $ sudo pip3 install virtualenv $ virtualenv --no-site-packages -p python3.6 venv $ source ./venv/bin/activate $ python –version (should read Python 3.6.X) $ sudo apt-get install build-essential libssl-dev libffi-dev $ sudo apt-get install unixodbc-dev $ sudo apt-get install python3.6-dev $ pip install pandas $ pip install pylivetrader $ pylivetrader run –help (To check installation was successful)