Read docs before using 512K modules, was: Problem with install?

[Nrone]

Hi,

New to micropython and esp8266! I have installed according to the tutorial here on micropython.org. Everything seems to go well, I get the REPL prompt but when I try to follow the tutorial code examples it fails! As an example when I write to a file :
>>>
>>> f = open('data.txt', 'w')
>>> f.write('some data')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: 'NoneType' object has no attribute 'write'

Another examples is webrepl_setup nothing happens I only get the REPL prompt back!

I should mention that i flashed the esp8266 with 512k firmware, is that related? I have used esp8266-512k-20170608-v1.9-35-ge1cda003.bin and esp8266-512k-20170607-v1.9-32-g4d2778c9.bin

[pythoncoder]

I rather think the 512K version lacks a filesystem. You could find out if I'm right by issuing

Code: Select all

import os
os.listdir('/')

If it throws an exception there is no filesystem.

[pfalcon]

See http://docs.micropython.org/en/latest/e ... quirements