On Sun, Jan 8, 2017 at 8:57 PM, Xiaofan Chen <xiaofanc@xxxxxxxxx> wrote:
> MyMacMini:python xiaofanc$ python complete.py
> version: 1.3
> devices: 1
> #0: manufacturer="FTDI" description="FT232R USB UART" serial="A8007Ub5"
> turning everything on
> Traceback (most recent call last):
> File "complete.py", line 63, in <module>
> ftdi.write_data(ftdic, chr(0xff), 1)
> TypeError: write_data() takes exactly 2 arguments (3 given)
>
> After removing the last argument, i.e., deleting " , 1", it seems to
> work fine. Maybe there is a change between libftdi1 version 1.2 and 1.3.
The issue is still in latest git.
(playusb) c:\work\libftdi\libftdi\python\examples>python
Python 3.6.5 (v3.6.5:f59c0932b4, Mar 28 2018, 17:00:18) [MSC v.1900 64
bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> exit()
1) simple.py works fine
(playusb) c:\work\libftdi\libftdi\python\examples>python simple.py
[FTDI version] major: 1, minor: 4, micro: 0, version_str: 1.4,
snapshot_str: v1.4-12-g91dbb65
ftdi.usb_open(): 0
ftdi.set_baudrate(): 0
2) cbus.py throws invalid syntax error
(playusb) c:\work\libftdi\libftdi\python\examples>python cbus.py
File "cbus.py", line 93
print 'manufacturer="%s" description="%s" serial="%s"' %
(manufacturer, description, serial)
^
SyntaxError: invalid syntax
3) complete.py has the same problem as before.
(playusb) c:\work\libftdi\libftdi\python\examples>python complete.py
version: 1.4
devices: 1
#0: manufacturer="FTDI" description="FT232R USB UART" serial="A8007Ub5"
turning everything on
Traceback (most recent call last):
File "complete.py", line 63, in <module>
ftdi.write_data(ftdic, chr(0xff), 1)
TypeError: write_data() takes 2 positional arguments but 3 were given
4) After removing the last argument, i.e., deleting " , 1", it seems to
work a bit further but complete.py still does not work.
(playusb) c:\work\libftdi\libftdi\python\examples>python complete.py
version: 1.4
devices: 1
#0: manufacturer="FTDI" description="FT232R USB UART" serial="A8007Ub5"
turning everything on
TypeError: expected bytes, str found
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "complete.py", line 63, in <module>
ftdi.write_data(ftdic, chr(0xff))
File "C:\work\pyenv64\playusb\lib\site-packages\ftdi1.py", line 342,
in write_data
return _ftdi1.write_data(ftdi, buf)
SystemError: <built-in function write_data> returned a result with an error set
--
Xiaofan
--
libftdi - see http://www.intra2net.com/en/developer/libftdi for details.
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