Not Python 3 compatible

[TXBDan]

Hello,

Thanks a ton for creating this wrapper. I'm sure you're well aware that this isn't Python 3 compatible. Any plans for a Python 3 version? Even after updating the prints and exception code in the setup.py script, i'm getting:

Traceback (most recent call last):
File "setup.py", line 211, in
cmdclass = {"build_ext":build_bindings} )
File "/usr/lib/python3.4/distutils/core.py", line 148, in setup
dist.run_commands()
File "/usr/lib/python3.4/distutils/dist.py", line 955, in run_commands
self.run_command(cmd)
File "/usr/lib/python3.4/distutils/dist.py", line 974, in run_command
cmd_obj.run()
File "/usr/lib/python3.4/distutils/command/install.py", line 583, in run
self.run_command('build')
File "/usr/lib/python3.4/distutils/cmd.py", line 313, in run_command
self.distribution.run_command(command)
File "/usr/lib/python3.4/distutils/dist.py", line 974, in run_command
cmd_obj.run()
File "/usr/lib/python3.4/distutils/command/build.py", line 126, in run
self.run_command(cmd_name)
File "/usr/lib/python3.4/distutils/cmd.py", line 313, in run_command
self.distribution.run_command(command)
File "/usr/lib/python3.4/distutils/dist.py", line 974, in run_command
cmd_obj.run()
File "setup.py", line 197, in run
patch_dxl_sdk()
File "setup.py", line 133, in patch_dxl_sdk
print (sp.communicate(input=patch)[0])
File "/usr/lib/python3.4/subprocess.py", line 960, in communicate
stdout, stderr = self._communicate(input, endtime, timeout)
File "/usr/lib/python3.4/subprocess.py", line 1602, in _communicate
input_view = memoryview(self._input)
TypeError: memoryview: str object does not have the buffer interface

Thanks again!

[jthorniley]

Hi,

I'm afraid I don't have the device anymore and I never got around to making it work on python 3.

I think I've seen this error with other conversions though, the problem can be fixed in this frame:

File "setup.py", line 133, in patch_dxl_sdk
print (sp.communicate(input=patch)[0])

So if you find that line, try replacing it with these two:

patch_bytes = bytes(patch, 'UTF-8')
print(sp.communicate(input=patch_bytes)[0])

I'm guessing this a bit from here: http://stackoverflow.com/questions/5471158/typeerror-str-does-not-support-the-buffer-interface

But it will be easier for you to test it if you've got the device.

James

[TXBDan]

Great, that fixed it, thanks.

It had trouble downloading the Robotis linux SDK so I did it manually and it all installed fine.

Now I’ll try it out.

Thanks again,

Dan

From: James Thorniley [mailto:[email protected]]
Sent: Tuesday, August 09, 2016 4:51 AM
To: jthorniley/pyusb2ax [email protected]
Cc: Dan [email protected]; Author [email protected]
Subject: Re: [jthorniley/pyusb2ax] Not Python 3 compatible (#1)

Hi,

I'm afraid I don't have the device anymore and I never got around to making it work on python 3.

I think I've seen this error with other conversions though, the problem can be fixed in this frame:

File "setup.py", line 133, in patch_dxl_sdk
print (sp.communicate(input=patch)[0])

So if you find that line, try replacing it with these two:

patch_bytes = bytes(patch, 'UTF-8')
print(sp.communicate(input=patch_bytes)[0])

I'm guessing this a bit from here: http://stackoverflow.com/questions/5471158/typeerror-str-does-not-support-the-buffer-interface

But it will be easier for you to test it if you've got the device.

James

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