str.splitlines() with MicroPython?

[ZKDMun]

Using Python I can easily split lines by str.splitlines().
But there is no splitline() attribute for MicroPython?

Because after my HTTP GET request I got this "b'\n1000\n999\n" and I want to seperate the two values (in this example "1000" and "999").
Any ideas? :/

[Roberthh]

Code: Select all

[b'\n1000\n999\n'.split(b'\n')

reveals

Code: Select all

[b'', b'1000', b'999', b'']

[Naib]

[quote="Roberthh"][code][b'\n1000\n999\n'.split(b'\n')
[/code]reveals
[code][b'', b'1000', b'999', b'']
[/code][/quote]


Yup. As I understand it, micropython does not support UTF-8. Splitlines is a str method

[dhylands]

Micropython does support utf8.

splitlines seems to work for me.

Code: Select all

>>> 'abc\ndef\nghi'.splitlines()
['abc', 'def', 'ghi']
>>> b'abc\ndef\nghi'.splitlines()
[b'abc', b'def', b'ghi']

If you pass it a string you get strings back (and strings support UTF-8). If you pass it a byte string, you get byte strings back. bytestrings don't support UTF8.

To convert a bytestring to a string use:

Code: Select all

>>> str(b'a>\xc2\xb0<b', 'utf8')
'a>\xb0<b'
>>> bytes('a>\xb0<b', 'utf8')
b'a>\xc2\xb0<b'
>>> print(str(b'a>\xc2\xb0<b', 'utf8'))
a>°<b
>>> 

I'm not sure if the print statement will show up or not. It prints a> followed by a degree symbol followed by <b.

[Roberthh]

Whether splitlines is supported depend on the platform. Splitlines works in the Unix and PyBoard version, but not in the esp8266 build. It depends on the setting of MICROPY_PY_BUILTINS_STR_SPLITLINES, which has to be enabled in the build configuration.

[SpotlightKid]

If you know that your separator is always '\n', there's no reason to use splitlines. Just use split('\n') instead.