Use super() for calling __init__ (Issue #193) Use super() for calling __init__ of parent class instead of obsolete Python 2 syntax. See Issue #193 and https://stackoverflow.com/a/27134600

Add support for instances (Issue #192) This commit adds the feature requested in Issue #192. IV_Swinger2_gui.py - GraphicalUserInterface class changes: - __init__: - Add instance and main_gui creation parameters - Add attributes: - self.instance (string) - Initial value from creation parameter - Will always be None for the main GUI - self.main_gui (object) - Initial value from creation parameter - Set to self if creation parameter value is None - self.instance_gui (dict of objects) - Only exists for main GUI - Contains - Initial value is empty dict: {} - Added to when an instance GUI is launched - Deleted from when an instance GUI is closed - Set root to tk.Toplevel() instead of tk.Tk() for instance GUIs - Pass instance value to set_root_options() method - Append /inst/{instance} to app_data_dir for instances and pass that in the creation of the ivs2 object - Set instance ivs2 object's usb_port property to DISCONNECTED - Set instance app_dir property to the main GUI's value (for Windows bug workaround) - Add derived properties: - instances - Sorted list of already-created instances - usb_ports_in_use - List of ports used by the main GUI and all instance GUIs - Change check_app_data_dir() method to take the app_data_dir as a parameter so it can be called before the creation of the ivs2 object - Modify set_root_options() method: - Added instance parameter - Append instance to title if instance is not None - In swing_loop() method, change minimum value of delay_ms from 1 to 10 to prevent any GUI from monopolizing the CPU - Modify start_centered(), start_to_right(), and start_to_left() methods to tile instance GUIs - Modify the close_gui() method: - Add warning if closing the main GUI and instance GUIs are still open - Add instance name to dialog that is generated when there are >5 changes to the config file - When the method is called for an instance GUI, remove the instance GUI object and delete it from the main GUI's instance_gui dict - Modify the run() method: - Suppress attempting the Arduino handshake if the usb_port property is DISCONNECTED - Suppress calling mainloop for instances - MenuBar class changes: - Add the instances menu to the MenuBar class - Call new create_instances_menu() method in __init__ - Add methods: - create_instances_menu() - populate_instances_menu() - depopulate_instances_menu() - update_instances_menu() - launch_entry_action() - launch_instance() - add_new_instance() - show_instances_help() - Add InstancesHelpDialog class - Suppress creating the Mac Preferences and Help menus for instance GUIs (because they crash, but are still present from main GUI) - Modify update_usb_port_menu() method: - Add call to find_serial_ports before populating the menu - Disable entries that are in use by other GUIs - Add DISCONNECTED entry to allow user to disconnect from any USB port - Modify select_serial() method: - Handle value of DISCONNECTED; - Close the current USB port (if any) by calling the ivs2 object's close_usb() method - Disable the go button - Save value in the config file - Modify run_simulator() method to pass the app_data_dir value in the creation of the SimulatorDialog object IV_Swinger2.py: - Move code to get the default app_data_dir into a global function so it can be used by GUI - Resurrect the extended PrintAndLog class. - Add instance variable for log_file_name to allow (but not require) instance-specific logging - Remove terminate_log() global function since it is a method in the extended PrintAndLog class - Modify the apply_usb method in the Configuration class: - Handle the case where the USB port is in use: - print and log a message - set ivs2 object's usb_port property to DISCONNECTED - Handle the case where the config value is DISCONNECTED - Treat just the same as case where the port in the config is attached; do not try to find an Arduino port - Add optional usb_ports_in_use creation parameter to IV_Swinger2 class - If the object is created with that parameter specified, set the object's usb_ports_in_use attribute to the list passed in. Otherwise, set it to an empty list - Add a close_usb() method and use that in the reset_arduino() method. This method is now used by the GUI when closing an instance GUI. - Add logging of the resetting of an Arduino IV_Swinger2_sim.py: - Add support for non-default app_data_dir: - Pass the app_data_dir creation parameter to the IV_Swinger2 __init__ - Add app_data_dir creation parameter to the SimulatorDialog class and pass it to the ivs2_sim object at creation

Change to flat title on splash screen (Issue #191) Changed the splash screen to use a simple flat white font for the title.

Remove debug prints Remove a couple of debug print statements that slipped in with recent commits

Move revert question to beginning of dialog (Issue #190) See Issue #190.

Convert remaining files to f-strings (Issue #188) Somehow missed the two PV_model files in the other commit for Issue #188. Also converting a few more strings that pylint didn't catch because the .format was used after the string template was assigned to a variable.

Fix bug in f-string fix in IV_Swinger2_sim.py (Issue #188) Don't know how this happened. I thought I ran pylint on all the changed files. And I also thought I ran the app! Apparently not.

Replace python 2 README file with EOL message/warning (Issue #189) README file was replaced with a warning message about the EOL of Python 2 code.

Convert to f-strings (Issue #188) All formatted strings in the six files included in this commit were converted to f-strings. Pylint now doesn't generate any "consider-using-f-string" warnings. The conversion was assisted with the "flynt" tool. Nearly all were converted with "flynt -ll 999". Then flake8 was used to identify the lines that were >79 characters, and those were manually split onto multiple lines using string literal concatenation. There were a very small number that flynt couldn't comvert, and those were done manually.

Added ee to good-names (Issue #187) This is needed for one of the pylint fixes to IV_Swinger2_gui.py