Migrating Blynkified Arduino project to Raspberry Pi

As the title states, I am migrating my project into a different (environment?) and wanted to know if the concern regarding using delays in any of the loops applies to rPi? I am still at the very beginning of my learning curve, but hopefully what I’ve learned from Arduino will make the process less painful. After following a few tutorials about python, it seems delay is used quite frequently and immediately I wondered if this is also a problem with the Pi.