influxdb is slow to import when pandas is present

[wwade]

I noticed that some commands where we're using influxdb.client were getting slow to run. I used import-profiler to dig into it and found that it was due to importing pandas within influxdb.dataframe_client. I hacked together an env var to avoid this and compared:

% time env INFLUXDB_NO_DATAFRAME_CLIENT=1 python -c 'import influxdb'    
                                                                         
real    0m0.157s                                                         
user    0m0.140s                                                         
sys     0m0.016s                                                         
% time env __INFLUXDB_NO_DATAFRAME_CLIENT=1 python -c 'import influxdb'  
                                                                         
real    0m0.480s                                                         
user    0m0.756s                                                         
sys     0m2.196s                                                         
%                                                                        

Is this something you might consider as a PR?

This is the gist of it: https://github.com/aristanetworks/influxdb-python/pull/2/files

It's just a WIP, but if you're OK with the approach, I can rebase + clean it up and submit a PR here.

Thoughts?

[russorat]

@wwade thank you! yes we would happily review your PR. thank you!