Labbench

Added
- new Win32Com backend
- a global labbench logger instance is now accessible as labbench.logger
- Exception types: DeviceNotReady, DeviceFatalException, DeviceException

Changed
- pythonnet is now only an install dependency in windows platforms
- the dotnet backend will now log an error but not raise an exception if pythonnet is not installed
- If NI VISA is not installed, an exception is now raised only if you try to connect to a VISA driver
- VISADevice.read_termination and VISADevice.write_termination are now in VISADevice.state as local state traits
- Removed the connect_lock argument from local state traits. This argument was not used.
- Local state traits defined with read_only='connected' now also set is_metadata=True
- Bugfixes for debug logging
- Each Device now has a .logger attribute that includes consistent indication of the Device instance that produced the log message

Removed

Added
- hash_caller method to generate unique file names based on a combination of source code implementation and input
arguments of a function
- RemoteException class added to core.py
- New TelnetDevice backend class

Changed
- adjusted logic for locating DotNet DLL paths
- updated dotnet connect() method to match current object model
- Device instantiation keyword arguments now set values of Local state descriptors (instead of attributes of the Device class)
- CommandLineWrapper now logs debug entries
- Updated SerialDevice to base connection settings on Local state descriptors
- Device state local traits can now be defined with read_only='connected', making them read-only from if the device is connected

Removed

Added
- new function show_messages (replaces debug_to_screen)
- new context manager VISADevice.suppress_timeout to block VISA timeout exceptions
- the new Device.cleanup() method is now called just before disconnection
- support for current git repo commit via host.state.git_commit_id
- each state trait definitions may now specify is_metadata=True to indicate that it should be included with device metadata
- Device.metadata() returns a dictionary of metadata information
- when function calls in concurrently() return dictionary, the new new flatten argument updates the return with these dictionaries instead of a nested dictionary

Changed
- fixed recursion error in notebooks.range
- VISADevice.overlap_and_add is now a function and not a property, and supports configurable timeout
- Fixed a bug setting title in notebooks.range and notebooks.linspace
- Device.setup() is now called after connection instead of instantiation
- Correct a bug in lb.read() that led to incorrect column filter behaviors for csv and sqlite
- Included 'LocalDict' with `__all__` in Core
- Calls to .append() now cache *all* data; no relational files are written until write() is called
- Relational file path is now given relative to the path containing the master database

Removed
- debug_to_screen (replaced by show_messages)
- DEBUG, WARNING, ERROR constants imported from the logging module

Added
- VISADevice.list_resources classmethod
- labbench.linspace and labbench.range add notebook indicators for the test bench

Changed
- Add sqlalchemy and psutil dependencies that were missing in setup.py
- Several string encoding fixes for python 3.x
- Fixed formatting bug in support for logging debug to disk in host.py
- Automatically put long strings in relational files
- Error checking for arguments to managedata.expand
- Append missing file extension to relational database paths
- Build system fixes

Removed
- EnumBytes (replaced by CaselessStrEnum)

Added
- panel function for displaying tables of testbed state in jupyter notebook
- temporarily include log_progress github repo code; need to pin down license situation

Changed
- fixed Localhost.state.time encoding problem for python 3
- fixed database introspection problem for python 3
- fixed contextframe introspection problem for python 3
- fixed argument bug in LogAggregator.observe

Removed

Added
- LocalHost device provides error log and localhost timestamp states
- core.py: "List" state descriptor, to support localhost.py

Changed
- automatically observe localhost time and log data on each database append() using LocalHost in all types of database
- PC timestamp field name is now 'localhost_time'
- relational data directory now has the same path as the master database file (minus the file extension)
- support database logging from device states that return lists or tuples

Removed
- managedata.py: LogAggregator.make_timestamp method (use LocalHost.state.time instead)