getting system root path

[devnull]

Is there a better, more reliable or more efficient way of determining the system root path other than what I came up with ??

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import sys

## ESP32
_root = sys.path[1].split('lib')[0] #['', '/flash/lib']
print(_root) # /flash/

## ESP8266
_root = sys.path[1].split('lib')[0] #['', '/lib', '/']
print(_root) # /

[pythoncoder]

I appreciate this isn't really answering your question, but with a recent firmware build the ESP8266 is consistent with other ports in having the flash filesystem at '/flash':

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MicroPython v1.8.1-1435-g528aeb3-dirty on 2017-03-14; ESP module with ESP8266
Type "help()" for more information.
>>> import os
>>> os.listdir('/')
['flash']
>>> 

[devnull]

Hmm, if that's the case, maybe I should change my 8266 v1.8.7 setup to use the /flash root.

If I don't want to re-compile, is it OK to rebuild the sys.path on boot.py ??

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del sys.path[:]
sys.path.extend(['','/flash/lib'])

Update
No that won't work as boot.py still needs to be loaded from /

Is qstrdefsport.h the correct file to set the sys.path ??

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// Entries for sys.path
Q(/)
Q(/lib)

[pythoncoder]

I'm puzzled. This is what I see:

Code: Select all

MicroPython v1.8.1-1435-g528aeb3-dirty on 2017-03-14; ESP module with ESP8266
Type "help()" for more information.
>>> import os, sys
>>> sys.path
['', '/flash/lib', '/flash']
>>> os.listdir('/')
['flash']
>>> os.listdir('/flash')
['boot.py', 'main.py', 'roundrobin.py', 'utelnetserver.py', 'art.py', 'art1.py', 'aremote.py']
>>> 

Note the location of boot.py and main.py