How can I track my error on onewire library

[pierrot10]

Hello

I am trying to use the DS18x20 sensor.
For this I download the library onewire and I pasted it into /flash/lib/onewire.py

Then I upload my code from Atom.

I am surprised to read that error:

Traceback (most recent call last):
  File "main.py", line 5, in <module>
  File "/flash/lib/onewire.py", line 1, in <module>
NameError: name 'I' is not defined

Because of that message I checked the line of the file /flash/lib/onewire.py and I Can NOT see the caracter I, which should be a variable undefined. As I does not exsist, how can I solve my problem?

I imported onewire.py as the following

from onewire import DS18X20 #This is at line 5, as state in the error message
from onewire import OneWire # for DS18D20

Cheers and thank, have a nice evening

[pierrot10]

@pierrot10 However, I just read that file from the exemple
boot.py
I have not copy. Sorry for my question, but this is mandatory? Because it look like UART and do not use UART. That make sens?

Tks
Cheers

[livius]

@pierrot10
look at example
https://github.com/pycom/pycom-libraries/tree/master/examples/DS18X20

[robert-hh]

@pierrot10 No, you do not need boot.py.
The error is strange, and looks for me like a pymakr "surprise". If you can connect with ftp, check that the files are where you expect them and what is in the files.

[pierrot10]

@robert-hh Hello. Thnak for your reply. Apparently, after the transfer, a H (or a I, etc) is added as the first caracter, as the following:

H#!/usr/bin/env python3
"""
OneWire library for MicroPython
"""

It the reason why I got that error. The problem, I can not correct it directely because after saving it, the file become newer than the source and it will be overwritten at the next sync.

Then I look at the other lib file and I observed than none of them has that line. I remove and it work until I got a message stating, it can not imported DS18X20.

I first open my file with textwrangler, then I open it with Atom and I observed, the text was terribly formated (A lot on the same line).

I reformat it and it's works but not always..

Now the problem it state a

Traceback (most recent call last):
  File "main.py", line 9, in <module>
  File "/flash/lib/onewire.py", line 2
SyntaxError: invalid syntax

here is line two:

#!/usr/bin/env python3
"""
OneWire library for MicroPythonß
"""

import time
import machine

class OneWire:

What is wrong?
Then I gave a spave (return key) before the """ and I got the same error message

Traceback (most recent call last):
  File "main.py", line 9, in <module>
  File "/flash/lib/onewire.py", line 1, in <module>
NameError: name 'A' is not defined

Then how can sync my onewire file without a formatting issue and with a unwish caracter before the first line?

Does I need to check something on Atom?

Thabk for your help

EDIT:
OK. Problem seems to be solved. I copy again the content of onewire.py to /Flash/lib/onwire.py and on Atom, at the bottom right, I changed LF to CRLF.

The problem does not appear any more.
That funny because my main.py has LF (and not CRLF) and I do not have this problem with main.py