Exceptions
pycangjie defines a set of exceptions mapping to the error codes returned by the libcangjie functions.
Functions which are supposed to get you a list of characters will raise
CangjieNoCharsError when no characters correspond to your query.
If the libcangjie database could not be opened for some reason, then
CangjieDBOpenError is raised.
If an error happens when querying the database, the method will raise
CangjieDBError.
When memory could not be allocated, the method will raise
CangjieMemoryError.
Finally, methods will raise CangjieInvalidInputError when they are passed
an invalid input.
All exceptions are defined in the cangjie.errors module.