MicroPython and CircuitPython make programming micro controllers really easy - once they are set up!
If your board did NOT come with micro or circuit python installed, and there is no drag and drop firmware, never fear, there is a straightforward way to add this firmware, though it does involve some command line.
In this video watch how to get python running on your ESP8266 NodeMCU, your Feather ESP8266 or your Feather ESP32, using USB and REPL, then get a python blink script running on your board using WebREPL.
Useful links from this video:
Get firmware http://micropython.org/download/#esp8266
ESP32 MicroPython Firmware Binary http://www.micropython.org/download#e...
Useful tool https://learn.adafruit.com/micropytho...
Blink.py https://gist.github.com/omiq/2386849e4aaaf9b8533ff2f5f21461b3