Trying to spend UTXO with P2SH

I have a more complex script however i noticed that it returns false. Therefore, I tried the simplest signature check and it returns false as well. This is the locking script:

my_public_key = my_private_key.pub
redeem_script = CScript([my_public_key,OP_CHECKSIG])

txout_scriptPubKey = [OP_HASH160, Hash160(redeem_script), OP_EQUAL]

This is the unlocking script:

my_sig = create_OP_CHECKSIG_signature(tx, CScript(txin_scriptPubKey), my_private_key)
txin.scriptSig = CScript([my_sig,redeem_script])

It returns: VerifyScriptError: P2SH inner scriptPubKey returned false.

I don't get what's happening, it works for non signature type custom scripts. Any help is appreciated.



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