Re: [Hamlib-developer] Python bindings for Python 3

[Ervin H. <ai...@gm...>]

Hi Phil,

On Tue, Feb 28, 2017 at 12:10:22PM +1000, Phil wrote:
> I've recently resurrected some old C++ code and partially converted it 
> to Python. I'm wondering if there is a move to rewrite the Python 
> bindings for Python 3?

yes, you can make the Hamlib binding for Python 3, but (as I
know) only one version supported in same (compile) time.

I'll see that how can we support the multiple versions.

But now, here is the short intro, how can you build the binding
for Python3.

airween@vm:~/hamlib$ export PYTHON=/usr/bin/python3
airween@vm:~/hamlib$ autoreconf --install
airween@vm:~/hamlib$ ./configure --with-python-binding
...
...
airween@vm:~/hamlib$ make
...
...
airween@vm:~/hamlib$ sudo make install
...
...
airween@vm:~/hamlib$ cd bindings
airween@vm:~/hamlib/bindings$ echo $LANG
hu_HU.UTF-8
airween@vm:~/hamlib/bindings$ echo $LC_ALL
C
airween@vm:~/hamlib/bindings$ export LC_ALL=hu_HU.UTF-8
airween@vm:~/hamlib/bindings$ export PYTHONIOENCODING=utf-8
airween@vm:~/hamlib/bindings$ python3 py3test.py
Python 3.4.2 test, Hamlib 3.2~git
status(str):		 Command completed successfully
get_conf:		path = /dev/Rig, retry = 5, ITU region = 2
freq:			 5700000000.0
mode:			 FM 
bandwidth:		 15000
mode:			 CW 
bandwidth:		 2400
ITU_region:		 2
Backend copyright:	 LGPL
Model:			 Dummy
Manufacturer:		 Hamlib
Backend version:	 0.5
Backend license:	 LGPL
Rig info:		 Nothing much (dummy)
VOX level:		 1
VOX level:		 5
Setting AF to 12.340000....
status:			0 - Command completed successfully
AF level:		 12.34000015258789
strength:		 -23
status:			 0
status(str):		 Command completed successfully
get_channel status:	 0
VFO:			 VFOB ,  5700000000.0
Attenuators:		 [10, 20, 30, 0, 0, 0, 0, 0]

Sending Morse, '73'

Some static functions:
Loc1:		IN98XC ->   -0.0417,   48.1042 -> IN98XC
Loc2:		DM33DX -> -113.7083,   33.9792 -> DM33DX
Distance:	8765.814 km, azimuth 309.00, long path:	31266.186 km
Longitude:	-0.0417,    0°  2' 29" W	recoded: -04
Latitude:	48.1042,   48°  6' 15" N	recoded: 48.1042


Note, that the locale/lang environment settings need only,
because my Python3 can't print the "degree" character (which is a
unicode char) whithout that. May be you don't need that.

I've made a new version of pytest.py for Python3, you can grab it
from my Github repo:

https://github.com/airween/hamlib/blob/py3/bindings/py3test.py

Here is the full branch which is came from the Nate's master:
https://github.com/airween/hamlib/tree/py3


Hope this helps,


73, Ervin
HA2OS