SDK and Python 3, errors and improvements 2

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solarjoe
Topic Author

15 Jan 2015 12:23 #2927 by solarjoe

SDK and Python 3, errors and improvements 2 was created by solarjoe

Hello Paul,

I downloaded the new release of the SDK but the Python files did not change since the release
mid of December. Only the file ssc.pyc was added.

I attached my script to this new thread because I could not attach it to the other one.
There was a brower error message:

An AJAX HTTP request terminated abnormally.
Debugging information follows.
Path: /file/ajax/upload/und/form-DuZKA4pRL0p8w4i30-DUNxKR8csYRsLETV7LQhq576w
StatusText: n/a
ResponseText: The specified URL cannot be found.
ReadyState: undefined

About the Python script, the UTF-8 error is related to the function info_label().

return t.decode('utf-8')
UnicodeDecodeError: 'utf-8' codec can't decode byte 0x91 in position 19: invalid start byte

You can also check the other changes to convert from Python 2 to 3, maybe you have better
ideas.

Kind regards,
Joe

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solarjoe
Topic Author

10 Feb 2015 08:19 #2928 by solarjoe

Replied by solarjoe on topic SDK and Python 3, errors and improvements 2

Hello Paul,

any news on what might cause the UnicodeDecodeError in Python 3?

Kind regards,
Joe

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Paul Gilman

10 Feb 2015 17:37 #2929 by Paul Gilman

Replied by Paul Gilman on topic SDK and Python 3, errors and improvements 2

Sorry for the delay, Joe. Thank you for posting your Python example. We're investigating the unicode issue now. I just posted an update to the SDK for SAM 2015.1.30.

Best regards,
Paul.

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Paul Gilman

17 Feb 2015 23:37 #2930 by Paul Gilman

Replied by Paul Gilman on topic SDK and Python 3, errors and improvements 2

Hi Joe,
We've finally tracked down the cause of the unicode error and have a fix. The error is caused by C++ code in the SSC module for the HCPV module that uses a single quote in one of the output variable labels. The solution for the Python wrapper is to modify the definition of

info_label()

in sscapi.py.
Old:

def info_label( self, p_inf ):&nbsp;

     self.pdll.ssc_info_label.restype = c_char_p

     return self.pdll.ssc_info_label( c_void_p(p_inf) )
New:

def info_label( self, p_inf ):<br />
	&nbsp; &nbsp; &nbsp;self.pdll.ssc_info_label.restype = c_char_p<br />
	&nbsp; &nbsp; &nbsp;t = self.pdll.ssc_info_label( c_void_p(p_inf) )<br />
	&nbsp; &nbsp; &nbsp;return t.decode('utf-8', 'ignore')

Here is a link to a version of sscapi.py with the correction:
sscapy-3-4-2.py.txt ( PY 104 KB ). You'll have to remove the .txt extension after you download the file.
We will include this file in the next version of the SDK
Best regards

Paul.

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sjschneider

11 Oct 2016 18:47 #2931 by sjschneider

Replied by sjschneider on topic SDK and Python 3, errors and improvements 2

Hello,

I've ported SAM's Python 2 API to Python 3 and set it up as a Python module: py3samsdk . It is compatible with the latest March 14, 2016 release. I've set up some unit tests, but it has not undergone extensive platform testing, etc. Please feel free to use and contribute!

- Stephen

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