Pyvisa-py

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- support device lan name in TCPIP INSTR resources PR 226
- fix handling of VXI11 flags in device_write PR 226
- do not enforce 4 bytes padding RFC 1014 since some instrument do not respect
it (Issue 225) PR 226
- fix not setting stop bits with serial devices PR 205
- fix improper wait time before a timeout in the TCPIP backend PR 173
- add GPIB support for proprietary device drivers on Windows and Linux
(experimental): try importing gpib-ctypes if linux-gpib is not present.
fix 105 137
- fix return types of PyVisaLibrary and Session methods to match
pyvisa.highlevel.VisaLibraryBase fix 169 PR 170
- avoid double closing of gpib resources PR 171
- fix initialization of timeout for the USB resources (the default was set
before creating the underlying connection to which the timeout must be passed
and was not). PR 167
- implement USBTMC abort sequence after read timeout to avoid losing
communication with the instrument after a timeout occurs. PR 179
- fix custom timeout for USB instruments. PR 179
- fix triggering for all protocols. PR 180
- add support for "quirky" devices made by Rigol. PR 186 PR 207
- add support for Visa flush operation. PR 208
- fix reading large amounts of data from some instruments when using VXI-11. PR 209

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- Fix initialization of timeout (issue identified in TCPIP resources) PR 160

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- Fix handling of seesion registration under Python 3.7 PR 155
- Add read_stb, assert_trigger, lock, unlock to highlevel PR 139
- Fix timeout handling in usb PR 144
- Add gpib_command and assert_trigger to GPIB PR 136
- Handle ValueError in usb list fix 131 PR 132
- Fix reading on GPIB and implement clear and gpib_send_ifc PR 132
- Do not error when listing USB devices PR 126
- Fix an error in the handling of the termchar for TCPIP INSTR PR 126
- Make list_resources return an empty tuple instead of erroring PR 121
- Proper support for timeout in TCPIP INSTR sessions PR 120 127 130 144
- Proper encoding of data before transfer for all backends PR 119
- Unify use of StatusCode PR 118
- Improve handling of sessions attrs PR 116
- TCPIP SOCKET timeout handling improvement PR 115
- Fix compatibility with pyserial 3.0 PR 112
- TCPIP SOCKET handler read should not block PR 107
- TCPIP error handling fixes PR 100
- Use repr() instead of str() to log RPC record PR 97
- Speed up large transfer over GPIB 2beb52a5bcea2dae32d4a9908dc19f7874bfc0b7
- Catch GPIB errors while enumerating devices 9fea9d5c40cc6c33ce1244c209e5e576a33abfc2
- Add a serial poll function to GPIB backend PR 67
- Handle timeout in USB TMC backend PR 64
- Make USB TMC backend faster by transferring multiple bytes PR 63
- Fix issue with encoding before data transfer PR 59
- Get Linux GPIB version PR 55
- Fix broken import in TCPIP sessions PR 51

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- Added support for TCPIP Socket.
(Issue 38, thanks Thorsten Liebig)
- Added support for GPIB INSTR using linux-gpib.
(Issue 24, thanks bessman)
- Added support for USB RAW.
(Issue 18, kopp)
- Better error reporting when pyusb or pyserial is missing.
- Fixed logging of unicode strings.
(Issue 54)
- Fixed timeout in SerialSession.
(Issue 44)
- Moved resource name parsing to PyVISA.
- VXI11 protocol performance enhancement.
(thanks alexforencich)
- Improved pyusb importing.
- Fixed large binary reads in TCPIP.
- Added backend information to logger.
- Use pyvisa compat/struct.py for python < 2.7.8
(thanks Martin Ritter)

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- Initial release. Preliminary support for:
- USB INSTR
- TCPIP INSTR
- ASRL INSTR