Whoever shall by any means keep, hold, detain or restrain any person in a house of prostitution or other place where prostitution is practiced or allowed; or whoever shall, directly or indirectly, keep, hold, detain or restrain, or attempt to keep, hold, detain or restrain, in any house of prostitution or other place where prostitution is practiced or allowed, any person by any means, for the purpose of compelling such person, directly or indirectly, to pay, liquidate or cancel any debt, dues or obligations incurred or said to have been incurred by such person shall, upon conviction for the first offense under this section, be punished by imprisonment in the county jail for a period of not less than six months nor more than one year, and by a fine of not less than $100 nor more than $500, and upon conviction for any subsequent offense under this section shall be punished by imprisonment in the penitentiary for not less than one nor more than three years: Provided, That in any offense under this section where the person so kept, held, detained or restrained is a minor, any person violating the provisions of this section shall be guilty of a felony, and, upon conviction, shall be confined in the penitentiary not less than two years nor more than five years or fined not more than $5,000, or both.