[Issue-593] Change selectpattern from int to string

[louis0802]

Fixing for the issue #593

[louis0802]

Hii @horike37 @lopburny,

Could we please have a look at this PR?

Thanks

[horike37]

@louis0802
Thank you for this PR. No one seems to face this issue. I'm concerned that this would introduce any side effects.
Could you check if it breaks the backward compatibility?

[louis0802]

@louis0802 Thank you for this PR. No one seems to face this issue. I'm concerned that this would introduce any side effects. Could you check if it breaks the backward compatibility?

@horike37
May I have your help to check if it breaks the backward compatibility?
Is there any script or command I could run to verify it?

Thanks