DataLogWriter

class wpilog.DataLogWriter(filename: str, extraHeader: str = '')

Bases: DataLog

A data log writer that flushes the data log to a file when Flush() is called.

The lifetime of this object must be longer than any data log entry objects that refer to it.

Constructs with a filename.

Parameters:

• filename – filename to use

• ec – error code if failed to open file (output)

• extraHeader – extra header data

flush() → None

Flushes the log data to disk.

stop() → None

Stops appending all records to the log, and closes the log file.