bitcoinafterlife bdcf1929f5 init
2025-03-23 13:53:10 -04:00

803 lines
28 KiB
Python

import copy
from . import willexecutors as Willexecutors
from . import util as Util
from electrum.i18n import _
from electrum.transaction import TxOutpoint,PartialTxInput,tx_from_any,PartialTransaction,PartialTxOutput,Transaction
from electrum.util import bfh, decimal_point_to_base_unit_name
from electrum.util import write_json_file,read_json_file,FileImportFailed
from electrum.logging import get_logger,Logger
from electrum.bitcoin import NLOCKTIME_BLOCKHEIGHT_MAX
MIN_LOCKTIME = 1
MIN_BLOCK = 1
_logger = get_logger(__name__)
#return an array with the list of children
def get_children(will,willid):
out = []
for _id in will:
inputs = will[_id].tx.inputs()
for idi in range(0,len(inputs)):
_input = inputs[idi]
if _input.prevout.txid.hex() == willid:
out.append([_id,idi,_input.prevout.out_idx])
return out
#build a tree with parent transactions
def add_willtree(will):
for willid in will:
will[willid].children = get_children(will,willid)
for child in will[willid].children:
if not will[child[0]].father:
will[child[0]].father = willid
#return a list of will sorted by locktime
def get_sorted_will(will):
return sorted(will.items(),key = lambda x: x[1]['tx'].locktime)
def only_valid(will):
for k,v in will.items():
if v.get_status('VALID'):
yield k
def search_equal_tx(will,tx,wid):
for w in will:
if w != wid and not tx.to_json() != will[w]['tx'].to_json():
if will[w]['tx'].txid() != tx.txid():
if Util.cmp_txs(will[w]['tx'],tx):
return will[w]['tx']
return False
def get_tx_from_any(x):
try:
a=str(x)
return tx_from_any(a)
except Exception as e:
raise e
return x
def add_info_from_will(will,wid,wallet):
if isinstance(will[wid].tx,str):
will[wid].tx = get_tx_from_any(will[wid].tx)
if wallet:
will[wid].tx.add_info_from_wallet(wallet)
for txin in will[wid].tx.inputs():
txid = txin.prevout.txid.hex()
if txid in will:
change = will[txid].tx.outputs()[txin.prevout.out_idx]
txin._trusted_value_sats = change.value
try:
txin.script_descriptor = change.script_descriptor
except:
pass
txin.is_mine=True
txin._TxInput__address=change.address
txin._TxInput__scriptpubkey = change.scriptpubkey
txin._TxInput__value_sats = change.value
txin._trusted_value_sats = change.value
def normalize_will(will,wallet = None,others_inputs = {}):
to_delete = []
to_add = {}
#add info from wallet
for wid in will:
add_info_from_will(will,wid,wallet)
errors ={}
for wid in will:
txid = will[wid].tx.txid()
if txid is None:
_logger.error("##########")
_logger.error(wid)
_logger.error(will[wid])
_logger.error(will[wid].tx.to_json())
_logger.error("txid is none")
will[wid].set_status('ERROR',True)
errors[wid]=will[wid]
continue
if txid != wid:
outputs = will[wid].tx.outputs()
ow=will[wid]
ow.normalize_locktime(others_inputs)
will[wid]=ow.to_dict()
for i in range(0,len(outputs)):
change_input(will,wid,i,outputs[i],others_inputs,to_delete,to_add)
to_delete.append(wid)
to_add[ow.tx.txid()]=ow.to_dict()
for eid,err in errors.items():
new_txid = err.tx.txid()
for k,w in to_add.items():
will[k] = w
for wid in to_delete:
if wid in will:
del will[wid]
def new_input(txid,idx,change):
prevout = TxOutpoint(txid=bfh(txid), out_idx=idx)
inp = PartialTxInput(prevout=prevout)
inp._trusted_value_sats = change.value
inp.is_mine=True
inp._TxInput__address=change.address
inp._TxInput__scriptpubkey = change.scriptpubkey
inp._TxInput__value_sats = change.value
return inp
def check_anticipate(ow:'WillItem',nw:'WillItem'):
anticipate = Util.anticipate_locktime(ow.tx.locktime,days=1)
if int(nw.tx.locktime) >= int(anticipate):
if Util.cmp_heirs_by_values(ow.heirs,nw.heirs,[0,1],exclude_willexecutors = True):
print("same heirs",ow._id,nw._id)
if nw.we and ow.we:
if ow.we['url'] == nw.we['url']:
print("same willexecutors", ow.we['url'],nw.we['url'])
if int(ow.we['base_fee'])>int(nw.we['base_fee']):
print("anticipate")
return anticipate
else:
if int(ow.tx_fees) != int(nw.tx_fees):
return anticipate
else:
print("keep the same")
#_logger.debug("ow,base fee > nw.base_fee")
ow.tx.locktime
else:
#_logger.debug("ow.we['url']({ow.we['url']}) == nw.we['url']({nw.we['url']})")
print("keep the same")
ow.tx.locktime
else:
if nw.we == ow.we:
if not Util.cmp_heirs_by_values(ow.heirs,nw.heirs,[0,3]):
return anticipate
else:
return ow.tx.locktime
else:
return ow.tx.locktime
else:
return anticipate
return 4294967295+1
def change_input(will, otxid, idx, change,others_inputs,to_delete,to_append):
ow = will[otxid]
ntxid = ow.tx.txid()
if otxid != ntxid:
for wid in will:
w = will[wid]
inputs = w.tx.inputs()
outputs = w.tx.outputs()
found = False
old_txid = w.tx.txid()
ntx = None
for i in range(0,len(inputs)):
if inputs[i].prevout.txid.hex() == otxid and inputs[i].prevout.out_idx == idx:
if isinstance(w.tx,Transaction):
will[wid].tx = PartialTransaction.from_tx(w.tx)
will[wid].tx.set_rbf(True)
will[wid].tx._inputs[i]=new_input(wid,idx,change)
found = True
if found == True:
pass
new_txid = will[wid].tx.txid()
if old_txid != new_txid:
to_delete.append(old_txid)
to_append[new_txid]=will[wid]
outputs = will[wid].tx.outputs()
for i in range(0,len(outputs)):
change_input(will, wid, i, outputs[i],others_inputs,to_delete,to_append)
def get_all_inputs(will,only_valid = False):
all_inputs = {}
for w,wi in will.items():
if not only_valid or wi.get_status('VALID'):
inputs = wi.tx.inputs()
for i in inputs:
prevout_str = i.prevout.to_str()
inp=[w,will[w],i]
if not prevout_str in all_inputs:
all_inputs[prevout_str] = [inp]
else:
all_inputs[prevout_str].append(inp)
return all_inputs
def get_all_inputs_min_locktime(all_inputs):
all_inputs_min_locktime = {}
for i,values in all_inputs.items():
min_locktime = min(values,key = lambda x:x[1].tx.locktime)[1].tx.locktime
for w in values:
if w[1].tx.locktime == min_locktime:
if not i in all_inputs_min_locktime:
all_inputs_min_locktime[i]=[w]
else:
all_inputs_min_locktime[i].append(w)
return all_inputs_min_locktime
def search_anticipate_rec(will,old_inputs):
redo = False
to_delete = []
to_append = {}
new_inputs = get_all_inputs(will,only_valid = True)
for nid,nwi in will.items():
if nwi.search_anticipate(new_inputs) or nwi.search_anticipate(old_inputs):
if nid != nwi.tx.txid():
redo = True
to_delete.append(nid)
to_append[nwi.tx.txid()] = nwi
outputs = nwi.tx.outputs()
for i in range(0,len(outputs)):
change_input(will,nid,i,outputs[i],new_inputs,to_delete,to_append)
for w in to_delete:
try:
del will[w]
except:
pass
for k,w in to_append.items():
will[k]=w
if redo:
search_anticipate_rec(will,old_inputs)
def update_will(old_will,new_will):
all_old_inputs = get_all_inputs(old_will,only_valid=True)
all_inputs_min_locktime = get_all_inputs_min_locktime(all_old_inputs)
all_new_inputs = get_all_inputs(new_will)
#check if the new input is already spent by other transaction
#if it is use the same locktime, or anticipate.
search_anticipate_rec(new_will,all_old_inputs)
other_inputs = get_all_inputs(old_will,{})
try:
normalize_will(new_will,others_inputs=other_inputs)
except Exception as e:
raise e
for oid in only_valid(old_will):
if oid in new_will:
new_heirs = new_will[oid].heirs
new_we = new_will[oid].we
new_will[oid]=old_will[oid]
new_will[oid].heirs = new_heirs
new_will[oid].we = new_we
print(f"found {oid}")
continue
else:
print(f"not found {oid}")
continue
def get_higher_input_for_tx(will):
out = {}
for wid in will:
wtx = will[wid].tx
found = False
for inp in wtx.inputs():
if inp.prevout.txid.hex() in will:
found = True
break
if not found:
out[inp.prevout.to_str()] = inp
return out
def invalidate_will(will,wallet,fees_per_byte):
will_only_valid = only_valid_list(will)
inputs = get_all_inputs(will_only_valid)
utxos = wallet.get_utxos()
filtered_inputs = []
prevout_to_spend = []
for prevout_str,ws in inputs.items():
for w in ws:
if not w[0] in filtered_inputs:
filtered_inputs.append(w[0])
if not prevout_str in prevout_to_spend:
prevout_to_spend.append(prevout_str)
balance = 0
utxo_to_spend = []
for utxo in utxos:
utxo_str=utxo.prevout.to_str()
if utxo_str in prevout_to_spend:
balance += inputs[utxo_str][0][2].value_sats()
utxo_to_spend.append(utxo)
if len(utxo_to_spend) > 0:
change_addresses = wallet.get_change_addresses_for_new_transaction()
out = PartialTxOutput.from_address_and_value(change_addresses[0], balance)
out.is_change = True
locktime = Util.get_current_height(wallet.network)
tx = PartialTransaction.from_io(utxo_to_spend, [out], locktime=locktime, version=2)
tx.set_rbf(True)
fee=tx.estimated_size()*fees_per_byte
if balance -fee >0:
out = PartialTxOutput.from_address_and_value(change_addresses[0],balance - fee)
tx = PartialTransaction.from_io(utxo_to_spend,[out], locktime=locktime, version=2)
tx.set_rbf(True)
_logger.debug(f"invalidation tx: {tx}")
return tx
else:
_logger.debug("balance - fee <=0")
pass
else:
_logger.debug("len utxo_to_spend <=0")
pass
def is_new(will):
for wid,w in will.items():
if w.get_status('VALID') and not w.get_status('COMPLETE'):
return True
def search_rai (all_inputs,all_utxos,will,wallet):
will_only_valid = only_valid_or_replaced_list(will)
for inp,ws in all_inputs.items():
inutxo = Util.in_utxo(inp,all_utxos)
for w in ws:
wi=w[1]
if wi.get_status('VALID') or wi.get_status('CONFIRMED') or wi.get_status('PENDING'):
prevout_id=w[2].prevout.txid.hex()
if not inutxo:
if prevout_id in will:
wo=will[prevout_id]
if wo.get_status('REPLACED'):
wi.set_status('REPLACED',True)
if wo.get_status("INVALIDATED"):
wi.set_status('INVALIDATED',True)
else:
if wallet.db.get_transaction(wi._id):
wi.set_status('CONFIRMED',True)
else:
wi.set_status('INVALIDATED',True)
#else:
# if prevout_id in will:
# wo = will[prevout_id]
# ttx= wallet.db.get_transaction(prevout_id)
# if ttx:
# _logger.error("transaction in wallet should be early detected")
# #wi.set_status('CONFIRMED',True)
# #else:
# # _logger.error("transaction not in will or utxo")
# # wi.set_status('INVALIDATED',True)
for child in wi.search(all_inputs):
if child.tx.locktime < wi.tx.locktime:
_logger.debug("a child was found")
wi.set_status('REPLACED',True)
else:
pass
def utxos_strs(utxos):
return [Util.utxo_to_str(u) for u in utxos]
def set_invalidate(wid,will=[]):
will[wid].set_status("INVALIDATED",True)
if will[wid].children:
for c in self.children.items():
set_invalidate(c[0],will)
def check_tx_height(tx, wallet):
info=wallet.get_tx_info(tx)
return info.tx_mined_status.height
#check if transactions are stil valid tecnically valid
def check_invalidated(willtree,utxos_list,wallet):
for wid,w in willtree.items():
if not w.father:
for inp in w.tx.inputs():
inp_str = Util.utxo_to_str(inp)
#print(utxos_list)
#print(inp_str)
#print(inp_str in utxos_list)
#print("notin: ",not inp_str in utxos_list)
if not inp_str in utxos_list:
#print("quindi qua non ci arrivo?")
if wallet:
height= check_tx_height(w.tx,wallet)
if height < 0:
#_logger.debug(f"heigth {height}")
set_invalidate(wid,willtree)
elif height == 0:
w.set_status("PENDING",True)
else:
w.set_status('CONFIRMED',True)
def reflect_to_children(treeitem):
if not treeitem.get_status("VALID"):
_logger.debug(f"{tree:item._id} status not valid looking for children")
for child in treeitem.children:
wc = willtree[child]
if wc.get_status("VALID"):
if treeitem.get_status("INVALIDATED"):
wc.set_status("INVALIDATED",True)
if treeitem.get_status("REPLACED"):
wc.set_status("REPLACED",True)
if wc.children:
reflect_to_children(wc)
def check_amounts(heirs,willexecutors,all_utxos,timestamp_to_check,dust):
fixed_heirs,fixed_amount,perc_heirs,perc_amount = heirs.fixed_percent_lists_amount(timestamp_to_check,dust,reverse=True)
wallet_balance = 0
for utxo in all_utxos:
wallet_balance += utxo.value_sats()
if fixed_amount >= wallet_balance:
raise FixedAmountException(f"Fixed amount({fixed_amount}) >= {wallet_balance}")
if perc_amount != 100:
raise PercAmountException(f"Perc amount({perc_amount}) =! 100%")
for url,wex in willexecutors.items():
if Willexecutors.is_selected(wex):
temp_balance = wallet_balance - int(wex['base_fee'])
if fixed_amount >= temp_balance:
raise FixedAmountException(f"Willexecutor{url} excess base fee({wex['base_fee']}), {fixed_amount} >={temp_balance}")
def check_will(will,all_utxos,wallet,block_to_check,timestamp_to_check):
add_willtree(will)
utxos_list= utxos_strs(all_utxos)
check_invalidated(will,utxos_list,wallet)
#from pprint import pprint
#for wid,w in will.items():
# pprint(w.to_dict())
all_inputs=get_all_inputs(will,only_valid = True)
all_inputs_min_locktime = get_all_inputs_min_locktime(all_inputs)
check_will_expired(all_inputs_min_locktime,block_to_check,timestamp_to_check)
all_inputs=get_all_inputs(will,only_valid = True)
search_rai(all_inputs,all_utxos,will,wallet)
def is_will_valid(will, block_to_check, timestamp_to_check, tx_fees, all_utxos,heirs={},willexecutors={},self_willexecutor=False, wallet=False, callback_not_valid_tx=None):
check_will(will,all_utxos,wallet,block_to_check,timestamp_to_check)
if heirs:
if not check_willexecutors_and_heirs(will,heirs,willexecutors,self_willexecutor,timestamp_to_check,tx_fees):
raise NotCompleteWillException()
all_inputs=get_all_inputs(will,only_valid = True)
_logger.info('check all utxo in wallet are spent')
if all_inputs:
for utxo in all_utxos:
if utxo.value_sats() > 68 * tx_fees:
if not Util.in_utxo(utxo,all_inputs.keys()):
_logger.info("utxo is not spent",utxo.to_json())
_logger.debug(all_inputs.keys())
raise NotCompleteWillException("Some utxo in the wallet is not included")
_logger.info('will ok')
return True
def check_will_expired(all_inputs_min_locktime,block_to_check,timestamp_to_check):
_logger.info("check if some transaction is expired")
for prevout_str, wid in all_inputs_min_locktime.items():
for w in wid:
if w[1].get_status('VALID'):
locktime = int(wid[0][1].tx.locktime)
if locktime <= NLOCKTIME_BLOCKHEIGHT_MAX:
if locktime < int(block_to_check):
raise WillExpiredException(f"Will Expired {wid[0][0]}: {locktime}<{block_to_check}")
else:
if locktime < int(timestamp_to_check):
raise WillExpiredException(f"Will Expired {wid[0][0]}: {locktime}<{timestamp_to_check}")
def check_all_input_spent_are_in_wallet():
_logger.info("check all input spent are in wallet or valid txs")
for inp,ws in all_inputs.items():
if not Util.in_utxo(inp,all_utxos):
for w in ws:
if w[1].get_status('VALID'):
prevout_id = w[2].prevout.txid.hex()
parentwill = will.get(prevout_id,False)
if not parentwill or not parentwill.get_status('VALID'):
w[1].set_status('INVALIDATED',True)
def only_valid_list(will):
out={}
for wid,w in will.items():
if w.get_status('VALID'):
out[wid]=w
return out
def only_valid_or_replaced_list(will):
out=[]
for wid,w in will.items():
wi = w
if wi.get_status('VALID') or wi.get_status('REPLACED'):
out.append(wid)
return out
def check_willexecutors_and_heirs(will,heirs,willexecutors,self_willexecutor,check_date,tx_fees):
_logger.debug("check willexecutors heirs")
no_willexecutor = 0
willexecutors_found = {}
heirs_found = {}
will_only_valid = only_valid_list(will)
if len(will_only_valid)<1:
return False
for wid in only_valid_list(will):
w = will[wid]
if w.tx_fees != tx_fees:
#w.set_status('VALID',False)
raise TxFeesChangedException(f"{tx_fees}:",w.tx_fees)
for wheir in w.heirs:
if not 'w!ll3x3c"' == wheir[:9]:
their = will[wid].heirs[wheir]
if heir := heirs.get(wheir,None):
if heir[0] == their[0] and heir[1] == their[1] and Util.parse_locktime_string(heir[2]) >= Util.parse_locktime_string(their[2]):
count = heirs_found.get(wheir,0)
heirs_found[wheir]=count + 1
else:
_logger.debug("heir not present transaction is not valid:",wid,w)
continue
if willexecutor := w.we:
count = willexecutors_found.get(willexecutor['url'],0)
if Util.cmp_willexecutor(willexecutor,willexecutors.get(willexecutor['url'],None)):
willexecutors_found[willexecutor['url']]=count+1
else:
no_willexecutor += 1
count_heirs = 0
for h in heirs:
if Util.parse_locktime_string(heirs[h][2])>=check_date:
count_heirs +=1
if not h in heirs_found:
_logger.debug(f"heir: {h} not found")
raise HeirNotFoundException(h)
if not count_heirs:
raise NoHeirsException("there are not valid heirs")
if self_willexecutor and no_willexecutor ==0:
raise NoWillExecutorNotPresent("Backup tx")
for url,we in willexecutors.items():
if Willexecutors.is_selected(we):
if not url in willexecutors_found:
_logger.debug(f"will-executor: {url} not fount")
raise WillExecutorNotPresent(url)
_logger.info("will is coherent with heirs and will-executors")
return True
class WillItem(Logger):
STATUS_DEFAULT = {
'ANTICIPATED': ['Anticipated', False],
'BROADCASTED': ['Broadcasted', False],
'CHECKED': ['Checked', False],
'CHECK_FAIL': ['Check Failed',False],
'COMPLETE': ['Signed', False],
'CONFIRMED': ['Confirmed', False],
'ERROR': ['Error', False],
'EXPIRED': ['Expired', False],
'EXPORTED': ['Exported', False],
'IMPORTED': ['Imported', False],
'INVALIDATED': ['Invalidated', False],
'PENDING': ['Pending', False],
'PUSH_FAIL': ['Push failed', False],
'PUSHED': ['Pushed', False],
'REPLACED': ['Replaced', False],
'RESTORED': ['Restored', False],
'VALID': ['Valid', True],
}
def set_status(self,status,value=True):
_logger.debug("set status {} - {} {} -> {}".format(self._id,status,self.STATUS[status][1],value))
if self.STATUS[status][1] == bool(value):
return None
self.status += "." +("NOT " if not value else "" + _(self.STATUS[status][0]))
self.STATUS[status][1] = bool(value)
if value:
if status in ['INVALIDATED','REPLACED','CONFIRMED','PENDING']:
self.STATUS['VALID'][1] = False
if status in ['CONFIRMED','PENDING']:
self.STATUS['INVALIDATED'][1] = False
if status in ['PUSHED']:
self.STATUS['PUSH_FAIL'][1] = False
self.STATUS['CHECK_FAIL'][1] = False
#if status in ['CHECK_FAIL']:
# self.STATUS['PUSHED'][1] = False
if status in ['CHECKED']:
self.STATUS['PUSHED'][1] = True
self.STATUS['PUSH_FAIL'][1] = False
return value
def get_status(self,status):
return self.STATUS[status][1]
def __init__(self,w,_id=None,wallet=None):
if isinstance(w,WillItem,):
self.__dict__ = w.__dict__.copy()
else:
self.tx = get_tx_from_any(w['tx'])
self.heirs = w.get('heirs',None)
self.we = w.get('willexecutor',None)
self.status = w.get('status',None)
self.description = w.get('description',None)
self.time = w.get('time',None)
self.change = w.get('change',None)
self.tx_fees = w.get('tx_fees',0)
self.father = w.get('Father',None)
self.children = w.get('Children',None)
self.STATUS = copy.deepcopy(WillItem.STATUS_DEFAULT)
for s in self.STATUS:
self.STATUS[s][1]=w.get(s,WillItem.STATUS_DEFAULT[s][1])
if not _id:
self._id = self.tx.txid()
else:
self._id = _id
if not self._id:
self.status+="ERROR!!!"
self.valid = False
if wallet:
self.tx.add_info_from_wallet(wallet)
def to_dict(self):
out = {
'_id':self._id,
'tx':self.tx,
'heirs':self.heirs,
'willexecutor':self.we,
'status':self.status,
'description':self.description,
'time':self.time,
'change':self.change,
'tx_fees':self.tx_fees
}
for key in self.STATUS:
try:
out[key]=self.STATUS[key][1]
except Exception as e:
_logger.error(f"{key},{self.STATUS[key]} {e}")
return out
def __repr__(self):
return str(self)
def __str__(self):
return str(self.to_dict())
def set_anticipate(self, ow:'WillItem'):
nl = min(ow.tx.locktime,check_anticipate(ow,self))
if int(nl) < self.tx.locktime:
#_logger.debug("actually anticipating")
self.tx.locktime = int(nl)
return True
else:
#_logger.debug("keeping the same locktime")
return False
def search_anticipate(self,all_inputs):
anticipated = False
for ow in self.search(all_inputs):
if self.set_anticipate(ow):
anticipated = True
return anticipated
def search(self,all_inputs):
for inp in self.tx.inputs():
prevout_str = inp.prevout.to_str()
oinps = all_inputs.get(prevout_str,[])
for oinp in oinps:
ow=oinp[1]
if ow._id!=self._id:
yield ow
def normalize_locktime(self,all_inputs):
outputs = self.tx.outputs()
for idx in range(0,len(outputs)):
inps = all_inputs.get(f"{self._id}:{idx}",[])
_logger.debug("****check locktime***")
for inp in inps:
if inp[0]!= self._id:
iw = inp[1]
self.set_anticipate(iw)
def check_willexecutor(self):
try:
if resp:=Willexecutors.check_transaction(self._id,self.we['url']):
if 'tx' in resp and resp['tx']==str(self.tx):
self.set_status('PUSHED')
self.set_status('CHECKED')
else:
self.set_status('CHECK_FAIL')
self.set_status('PUSHED',False)
return True
else:
self.set_status('CHECK_FAIL')
self.set_status('PUSHED',False)
return False
except Exception as e:
_logger.error(f"exception checking transaction: {e}")
self.set_status('CHECK_FAIL')
def get_color(self):
if self.get_status("INVALIDATED"):
return "#f87838"
elif self.get_status("REPLACED"):
return "#ff97e9"
elif self.get_status("CONFIRMED"):
return "#bfbfbf"
elif self.get_status("PENDING"):
return "#ffce30"
elif self.get_status("CHECK_FAIL") and not self.get_status("CHECKED"):
return "#e83845"
elif self.get_status("CHECKED"):
return "#8afa6c"
elif self.get_status("PUSH_FAIL"):
return "#e83845"
elif self.get_status("PUSHED"):
return "#73f3c8"
elif self.get_status("COMPLETE"):
return "#2bc8ed"
else:
return "#ffffff"
class WillExpiredException(Exception):
pass
class NotCompleteWillException(Exception):
pass
class HeirChangeException(NotCompleteWillException):
pass
class TxFeesChangedException(NotCompleteWillException):
pass
class HeirNotFoundException(NotCompleteWillException):
pass
class WillexecutorChangeException(NotCompleteWillException):
pass
class NoWillExecutorNotPresent(NotCompleteWillException):
pass
class WillExecutorNotPresent(NotCompleteWillException):
pass
class NoHeirsException(Exception):
pass
class AmountException(Exception):
pass
class PercAmountException(AmountException):
pass
class FixedAmountException(AmountException):
pass