Upgrade nodejs in conda (from v18 to v26)

If your conda env is nodejs v18, doing a conda install nodejs=26 is likely to create a lot of conflict.

Consider remove those conflicting packages and install the nodejs v26:

1. conda create env -n testing-dev --clone your-current-env
2. conda remove nodejs libgcc-ng
3. conda install -c conda-forge nodejs=26

Using Conda behind firewall

 To use conda behind firewall, in Windows:

1) Edit the .condarc

channels:

- defaults

proxy_servers:

  http: <proxy_host>:8080

  https: <proxy_host>:8080

ssl_verify: False

NOTE: Beware doing something like this:

http: http://proxyhost:8080

https: http://proxyhost:8080

Don't add "http://" above, it's wrong!

2) Using pip (need to trust the hosts)

pip install --trusted-host pypi.org --trusted-host pypi.python.org --trusted-host files.pythonhosted.org pandas

Some other better methods exist, the above is just one of the options that works.