def evaluate(self, context=None):
item = self.get_argument(context)
if item is None:
return
elif isinstance(item, float) and (math.isnan(item) or math.isinf(item)):
return item
elif not isinstance(item, (float, int, Decimal)):
code = 'XPTY0004' if isinstance(item, str) else 'FORG0006'
raise self.error(code, "invalid argument type {!r}".format(type(item)))
precision = 0 if len(self) < 2 else self[1].evaluate(context)
try:
if isinstance(item, int):
return round(item, precision)
elif isinstance(item, Decimal):
return round(item, precision)
elif isinstance(item, Float10):
return Float10(round(item, precision))
return float(round(Decimal.from_float(item), precision))
except TypeError as err:
raise self.error('XPTY0004', err)
except (DecimalException, OverflowError):
if isinstance(item, Decimal):
return Decimal.from_float(round(float(item), precision))
return round(item, precision)
def test_floats_in_tiny_interval_within_bounds(xlo, xhi, data, center):
assume(not (math.isinf(next_down(center)) or math.isinf(next_up(center))))
lo = Decimal.from_float(next_down(center)).next_plus()
hi = Decimal.from_float(next_up(center)).next_minus()
assert float(lo) < lo < center < hi < float(hi)
val = data.draw(st.floats(lo, hi, exclude_min=xlo, exclude_max=xhi))
assert lo < val < hi
def market_and_business_value_updater():
# Update every market row in DB
for market in Market.objects.all():
# Freeze market if no one owns any of its businesses
if market.num_businesses == 0:
market.started = False
market.save()
# If someone has bought one of the businesses
if market.started == True:
# Set range of change depending on volatility and growth rate
low = float(Decimal.from_float(-.1)*market.volatility)
high = float(market.growth_rate*market.volatility)
# Randomly generate the market change
change = Decimal.from_float(random.uniform(low, high))
market.current_multiplier += change
# print(f"Market = {market.name}, Change = {change}, Market_multiplier = {market.current_multiplier} Num businesses = {market.num_businesses}")
# Save new current_multiplier to market in DB
market.save()
# Update all business values in DB
for business in market.businesses.all():
business.value = business.base_value*market.current_multiplier
business.save()
def test_floats_in_tiny_interval_within_bounds(data, center):
assume(not (math.isinf(next_down(center)) or math.isinf(next_up(center))))
lo = Decimal.from_float(next_down(center)).next_plus()
hi = Decimal.from_float(next_up(center)).next_minus()
assert float(lo) < lo < center < hi < float(hi)
val = data.draw(st.floats(lo, hi))
assert lo < val < hi
def test_lossy_serialization_warning(caplog):
caplog.set_level(logging.WARNING, logger="great_expectations.core")
d = (
Decimal(7091.17117297555159893818) ** Decimal(2)
+ Decimal(7118.70008070942458289210) ** Decimal(2)
+ (Decimal(-1513.67274389594149397453)) ** Decimal(2)
) ** Decimal(1.5)
f_1 = (
7091.17117297555159893818 ** 2
+ 7118.70008070942458289210 ** 2
+ (-1513.67274389594149397453) ** 2
) ** 1.5
f_2 = float(d)
assert not (-1e-55 < Decimal.from_float(f_1) - d < 1e-55)
assert not (-1e-55 < Decimal.from_float(f_2) - d < 1e-55)
convert_to_json_serializable(d)
assert len(caplog.messages) == 1
assert caplog.messages[0].startswith("Using lossy conversion for decimal")
caplog.clear()
d = Decimal(0.1)
f_1 = 0.1
f_2 = float(d)
assert -1e-55 < Decimal.from_float(f_1) - d < 1e-55
assert -1e-55 < Decimal.from_float(f_2) - d < 1e-55
convert_to_json_serializable(d)
assert len(caplog.messages) == 0
def excel_scan_teams(teams: list, season: str): # 201
start = time.time()
number = 0
sheet_line = 0
while True:
while number < len(teams):
teamloop = teams[number]
# ['sheet_%d' % sheetnb].write = book.add_sheet(teamloop, cell_overwrite_ok= True)
print('')
print(teamloop)
print('')
number += 1
sheet_line += 1
json_dict = vexdb_json("rankings", {
"team": teamloop,
"season": season
})
output = []
for r in json_dict["result"]:
line = 'Team = {} Wins = {} Losses = {} AP = {} Ranking in Current Match = {} Highest Score = {}' \
.format(r["team"], r["wins"], r["losses"], r["ap"], r["rank"], r["max_score"])
datateam = '{}'.format(r["team"])
datawins = '{}'.format(r["wins"])
datalosses = '{}'.format(r["losses"])
dataap = '{}'.format(r["ap"])
datarank = '{}'.format(r["rank"])
datamaxscore = '{}'.format(r["max_score"])
if int(datawins) > int(datalosses):
sheet2.write(sheet_line, 6, "Positive", STYLE_RED)
elif int(datawins) < int(datalosses):
sheet2.write(sheet_line, 6, "Negative", STYLE_BLUE)
output.append(line)
sheet2.write(sheet_line, 0, datateam)
sheet2.write(sheet_line, 1, datawins)
sheet2.write(sheet_line, 2, datalosses)
sheet2.write(sheet_line, 3, dataap)
sheet2.write(sheet_line, 4, datarank)
sheet2.write(sheet_line, 5, datamaxscore)
sheet_line += 1
book.save("Data.xls")
print('')
decimal = (time.time() - start)
decimal = Decimal.from_float(decimal).quantize(Decimal('0.0'))
ave = (float(decimal) / (int(number)))
ave = Decimal.from_float(ave).quantize(Decimal('0.0'))
eta = (float(ave) * (int(len(teams) - (int(number)))))
etatomin = (float(eta) / 60)
etatomin = Decimal.from_float(etatomin).quantize(Decimal('0.0'))
print(
str(number) + "/" + str(len(teams)) + " Finished, Used " +
str(decimal) + " seconds. Average " + str(ave) +
" seconds each. ETA: " + str(etatomin) + " mins.")
if number >= 5:
number = 0
sheet_line = 1
print('\n reset and xls saved!')
main()
def TranslateToDecimal(amount):
'''金额的float类型转换为保留两位小数的Decimal类型，用于准确计算'''
try:
return Decimal.from_float(amount).quantize(Decimal('0.00'))
except TypeError:
if isinstance(amount, Decimal):
return Decimal.from_float(float(amount)).quantize(
Decimal('0.00'))
def get(self, request):
p2pproducts = P2PProduct.objects.filter(hide=False).filter(status=u'正在招标')
p2p_list = []
repaymentType = ''
for p2p in p2pproducts:
# 计算进度
amount = Decimal.from_float(p2p.total_amount).quantize(Decimal('0.00'))
percent = p2p.ordered_amount / amount * 100
schedule = '{}%'.format(percent.quantize(Decimal('0.0'), 'ROUND_DOWN'))
for pay_method, value in WANGDAI:
if p2p.pay_method == u'日计息一次性还本付息':
repaymentType = 1
break
if p2p.pay_method == u'日计息月付息到期还本':
repaymentType = 5
break
if p2p.pay_method == u'先息后本':
repaymentType = 9
break
if pay_method == p2p.pay_method:
repaymentType = value
break
p2pequities = p2p.equities.all()
subscribes = [{
"subscribeUserName": eq.user.username,
"amount": Decimal.from_float(eq.equity).quantize(Decimal('0.00')),
"validAmount": Decimal.from_float(eq.equity).quantize(Decimal('0.00')),
"addDate": timezone.localtime(eq.created_at).strftime("%Y-%m-%d %H:%M:%S"),
"status": "1",
"type": "0"
} for eq in p2pequities]
reward = (p2p.activity.rule.rule_amount * 100).quantize(Decimal('0.0')) if p2p.activity else 0
temp_p2p = {
"projectId": str(p2p.pk),
"title": p2p.name,
"amount": amount,
"schedule": schedule,
"interestRate": '{}%'.format(Decimal.from_float(p2p.expected_earning_rate).quantize(Decimal('0.0'))+reward),
"deadline": str(p2p.period),
"deadlineUnit": u"月",
"reward": '{}%'.format(0),#'{}%'.format(reward),
"type": u"信用标" if p2p.category == u'证大速贷'else u"抵押标",
"repaymentType": str(repaymentType),
"subscribes": subscribes,
"userName": md5(p2p.borrower_bankcard_bank_name.encode('utf-8')).hexdigest(),
"amountUsedDesc": strip_tags(p2p.short_usage),
"loanUrl": "https://{}/p2p/detail/{}".format(request.get_host(), p2p.id),
"publishTime": timezone.localtime(p2p.publish_time).strftime("%Y-%m-%d %H:%M:%S")
}
p2p_list.append(temp_p2p)
return HttpResponse(renderers.JSONRenderer().render(p2p_list, 'application/json'))
def get_ws_wq(df_document_cut):
stay_time_cut = df_document_cut['finish'] - df_document_cut[
'come'] #得到逗留时间队列
wait_time_cut = df_document_cut['wait'] #得到等待时间队列
ws_cut = np.mean(stay_time_cut) #平均逗留时间
wq_cut = np.mean(wait_time_cut) #平均排队等待时间
ws_cut = Decimal.from_float(ws_cut).quantize(Decimal('0.0000'))
wq_cut = Decimal.from_float(wq_cut).quantize(Decimal('0.0000'))
return ws_cut, wq_cut
def _format_ohlc(result):
return OHLC(
result[0],
Decimal.from_float(result[1]),
Decimal.from_float(result[3]),
Decimal.from_float(result[4]),
Decimal.from_float(result[2]),
Decimal.from_float(result[5]),
)
def func_sin(x, n):
sin_aprox = 0
coefs=[]
for i in range(n):
coef = (-1)**i
num = x**(2*i+1)
denom = math.factorial(2*i+1)
sin_aprox += (Decimal.from_float(coef)) * ( Decimal.from_float((num))/Decimal.from_float((denom)))
coefs.append(sin_aprox)
return (sin_aprox,coefs)
def getItemdetails(buyer_state, seller_state, item, item_tax_amount):
if (buyer_state != seller_state):
item_details = Item_details.objects.create(
igst_tax_percentage=item.tax_percentage, igst_amt=item_tax_amount)
else:
item_details = Item_details.objects.create(
sgst_tax_percentage=Decimal.from_float(item.tax_percentage / 2),
cgst_tax_percentage=Decimal.from_float(item.tax_percentage / 2),
sgst_amt=Decimal(item_tax_amount / 2),
cgst_amt=Decimal(item_tax_amount / 2))
return item_details
def test_saving_and_retrieving_items(self):
create_two_agereements_with_periods()
periods = Period.objects.all()
self.assertEqual(periods.count(), 2)
self.assertEqual(periods[0].start_date, date.today())
self.assertEqual(periods[0].end_date, date(date.today().year+1, date.today().month, date.today().day))
self.assertAlmostEqual(periods[0].agreement.credit_turnover, Decimal.from_float(1111.11), places=5)
self.assertEqual(periods[1].start_date, date(date.today().year+1, date.today().month, date.today().day))
self.assertEqual(periods[1].end_date, date(date.today().year+4, date.today().month, date.today().day))
self.assertAlmostEqual(periods[1].agreement.credit_turnover, Decimal.from_float(5678.11), places=5)
def clean_uah_rate(self):
""" Validation function to allow users enter rate with ',' instead of '.' """
data = self.cleaned_data['uah_rate']
if ',' in data:
data = data.replace(',', '.')
try:
data = float(data)
if data <= 0:
raise ValidationError("Should be a number greater than 0")
Decimal.from_float(data)
except ValueError:
raise ValidationError("Should be a number")
return data
def string_to_decimal(cls, value):
if value is None:
return None
value = value.replace(',', '')
if not len(value):
return Decimal.from_float(0.0)
try:
return parse_decimal(value)
except Exception:
return Decimal.from_float(0.0)
def buy_coins():
symbol = "DOGE" + BUY_WITH
avg_market_price = binance_client.get_avg_price(symbol=symbol)
quan = max_spending / float(avg_market_price["price"])
sym_info = binance_client.get_symbol_info(symbol)
lotSizeFilter = next(item for item in sym_info["filters"]
if item["filterType"] == "LOT_SIZE")
#corrected_Quantity = math.floor(quan / float(lotSizeFilter["stepSize"])) * float(lotSizeFilter["stepSize"])
corrected_Quantity = float(
D.from_float(quan).quantize(
D(str(lotSizeFilter["stepSize"]).rstrip("0"))))
try:
order = binance_client.create_order(symbol=symbol,
side=Client.SIDE_BUY,
type=Client.ORDER_TYPE_MARKET,
quantity=corrected_Quantity)
avg_price = avg_market_price["price"]
print(
f"Bought {corrected_Quantity} {symbol} (avg market pric was {avg_price}), fills:"
)
for fill in order["fills"]:
qty = fill["qty"]
price_fill = fill["price"]
print(f"Qty: {qty}, Price: {price_fill}")
# placing sell order
sell_price = float(order["fills"][0]["price"]) * sell_price_mutiplier
priceFilter = next(item for item in sym_info["filters"]
if item["filterType"] == "PRICE_FILTER")
sell_price_filtered = float(
D.from_float(sell_price).quantize(
D(priceFilter["tickSize"].rstrip("0"))))
print(f"Placing sell order at avg price: : {sell_price_filtered}")
sell_order = binance_client.order_limit_sell(
symbol=symbol,
quantity=corrected_Quantity,
price=sell_price_filtered)
print(f"Placed sell order at avg price: {sell_price_filtered}")
except BinanceAPIException as e:
print(e)
except BinanceOrderException as e:
print(e)
def update_revenue_estimate(self):
if self.ce_model_id:
qty = self.quantity
if not isinstance(qty, Decimal):
qty = Decimal.from_float(qty)
if not self.ce_unit_revenue_estimate:
raise ValidationError(
'Must provide unit sales price estimate.')
uc = self.ce_unit_revenue_estimate
if not isinstance(uc, Decimal):
uc = Decimal.from_float(uc)
self.ce_revenue_estimate = uc * qty
def __init__(self, api, steps, stop, *args, **kwargs):
super().__init__(api, *args, **kwargs)
logger = getLogger(__name__)
self.orders = []
self.pending_order = None
self.pivot = -1
self.steps = steps
self.stop = Decimal.from_float(stop)
self.correction = Decimal.from_float(0.5)
logger.info('ladder strategy started with steps={}, stop={}'.format(
self.steps, self.stop))
def get(self, request):
now = time.mktime(datetime.datetime.now().timetuple())
project_list = []
result = {
'timestamp': now,
'project_list': project_list
}
p2pproducts = P2PProduct.objects.select_related('warrant_company', 'activity').filter(hide=False).filter(
status=u'正在招标').order_by('-priority')[0:5]
for p2pproduct in p2pproducts:
rate_vip = p2pproduct.activity.rule.rule_amount * 100 if p2pproduct.activity else 0
rate_total = Decimal.from_float(p2pproduct.expected_earning_rate) + rate_vip
income = 10000 * rate_total * Decimal(p2pproduct.period) / (12 * 100)
income = float(income.quantize(Decimal('0.00')))
# 进度
amount = Decimal.from_float(p2pproduct.total_amount).quantize(Decimal('0.00'))
percent = (p2pproduct.ordered_amount / amount) * 100
percent = percent.quantize(Decimal('0.00'))
obj = {
'id': p2pproduct.id,
'title': p2pproduct.name,
#'title_url': 'https://{}/p2p/detail/{}'.format(request.get_host(), p2pproduct.id),
'title_url': 'https://www.wanglibao.com/activity/xunlei_setp/?promo_token=xunlei9',
'rate_year': p2pproduct.expected_earning_rate,
'rate_vip': float(rate_vip),
'income': income,
'finance': float(p2pproduct.total_amount),
'min_invest': float(100.00),
'guarantor': p2pproduct.warrant_company.name,
'finance_progress': float(percent),
'finance_left': float(p2pproduct.remain),
'repayment_period': p2pproduct.period * 30,
'repayment_type': XUNLEI_PAY_WAY.get(p2pproduct.pay_method, 0),
#'buy_url': 'https://{}/p2p/detail/{}?promo_token=xunlei'.format(request.get_host(), p2pproduct.id),
#'buy_url': 'https://www.wanglibao.com/activity/xunleidenglu/?promo_token=xunlei9',
'buy_url': 'https://www.wanglibao.com/activity/xunlei_setp/?promo_token=xunlei9',
'finance_start_time': time.mktime(timezone.localtime(p2pproduct.publish_time).timetuple()),
'finance_end_time': time.mktime(timezone.localtime(p2pproduct.end_time).timetuple()),
'status': p2pproduct.status
}
project_list.append(obj)
result.update(project_list=project_list)
return HttpResponse(renderers.JSONRenderer().render(result, 'application/json'))
def _to_decimal(amount):
if isinstance(amount, Decimal):
return amount
elif isinstance(amount, float):
return Decimal.from_float(amount)
else:
return Decimal(amount)
class Product(models.Model):
DISCOUNT_RATE = Decimal.from_float(0.10)
id = models.AutoField(primary_key=True)
name = models.CharField(max_length=200)
description = models.TextField()
price = models.DecimalField(max_digits=5, decimal_places=2)
sale_start = models.DateTimeField(blank=True, null=True, default=None)
sale_end = models.DateTimeField(blank=True, null=True, default=None)
photo = models.ImageField(blank=True,
null=True,
default=None,
upload_to='products')
def is_on_sale(self):
now = timezone.now()
if self.sale_start:
if self.sale_end:
return self.sale_start <= now <= self.sale_end
return self.sale_start <= now
return False
def get_rounded_price(self):
return round(self.price, 2)
def current_price(self):
if self.is_on_sale():
discounted_price = self.price * (1 - self.DISCOUNT_RATE)
return round(discounted_price, 2)
return self.get_rounded_price()
def __repr__(self):
return '<Product object ({}) "{}">'.format(self.id, self.name)
def done(request, bill_id):
bill = Bill.objects.get(pk=bill_id)
if bill.voucher:
v = bill.voucher
v.used = True
v.save()
if hasattr(bill, 'servescharge'):
print('sc')
charge = bill.servescharge
charge.paid = True
charge.save()
else:
print('dc')
charge = bill.depositcharge
charge.paid = True
charge.save()
if hasattr(bill.customer, 'card'):
card = bill.customer.card
card.deposit += charge.deposit_amount
else:
card = Card(deposit=charge.deposit_amount, customer=bill.customer)
card.save()
if bill.customer:
i = bill.valid_income()
c = bill.customer
c.credit += i
c.save()
if bill.customer.card:
card = bill.customer.card
card.deposit += Decimal.from_float(float(i) * CASH_BACK_PERCENTAGE)
card.save()
return render(request, 'reception/done.html', {'bill': bill})
def payAll(self):
#获取购买的书籍信息
sql = "call searchCart('" + self.logininfo[0] + "');"
self.cursor.execute(sql)
payBookID = []
payPrice = []
payNum = []
totalPrices = Decimal.from_float(0.00)
while True:
CartInfo = self.cursor.fetchone()
if CartInfo == None:
break
payBookID.append(CartInfo[0])
payNum.append(CartInfo[5])
payPrice.append(CartInfo[4] * CartInfo[5])
totalPrices += CartInfo[4] * CartInfo[5]
#检查余量合法
for i in range(len(payBookID)):
sql = "select BName,BStock from books where BookID = '" + payBookID[
i] + "'"
self.cursor.execute(sql)
message = self.cursor.fetchone()
if (message[1] < payNum[i]):
QMessageBox.critical(
self, "Critical",
self.tr("库存不足(《" + message[0] + "》仅剩 " + str(message[1]) +
" 本)!"))
return
print("库存检查通过")
#减少相应库存
for i in range(len(payBookID)):
sql = "update books set BStock = BStock - " + str(
payNum[i]) + " where BookID = '" + payBookID[i] + "'"
self.cursor.execute(sql)
#付款信息输入
self.payDialog = payDialog.payDialog(totalPrices, self)
self.payDialog.exec_()
payTime = time.strftime('%Y-%m-%d %H:%M:%S',
time.localtime(time.time()))
payType = self.payDialog.payInfo[0]
deliverType = self.payDialog.payInfo[1]
#插入消费记录
for i in range(len(payBookID)):
sql = "insert into records values(null,'" + payBookID[
i] + "','" + self.curUser + "','" + payTime + "'," + str(
payNum[i]) + "," + str(
payPrice[i]
) + ",'" + payType + "','" + deliverType + "')"
self.cursor.execute(sql)
#清空购物车
sql = "delete from carts where CusID = '" + self.curUser + "'"
self.cursor.execute(sql)
#提交
self.connect.commit()
self.rightTable("cart")
def make_20ma(r2_sp):
"""计算20ma
MA20 = 20天内收盘价之和/20
"""
from copy import deepcopy
from decimal import Decimal
r2_sp_test = deepcopy(r2_sp)
r3_sp_test = deepcopy(r2_sp)
r2_sp_test[-1] = r2_sp_test[-2] * Decimal.from_float(1.1)
if len(r2_sp_test) == 20: # 如果收盘列表达到20天长度
# print(r2_sp_test[-1],r2_sp_test[-2],r2_sp_test[-3],r2_sp_test[-4],r2_sp_test[-5],r2_sp_test[-6],r2_sp_test[-7],
# r2_sp_test[-8],r2_sp_test[-9],r2_sp_test[-10],r2_sp_test[-11],r2_sp_test[-12],r2_sp_test[-13],r2_sp_test[-14],
# r2_sp_test[-15],r2_sp_test[-16],r2_sp_test[-17],r2_sp_test[-18],r2_sp_test[-19],r2_sp_test[-20])
ma20 = sum(r2_sp_test) / 20 # 计算ma20
# print(ma20)
return ma20, 0 # 返回ma20 和0
elif len(r2_sp_test) > 20: # 如果收盘列表天数 大于20
r2_sp_test.pop(0) # 除去列表头部的天数
ma20 = sum(r2_sp_test) / 20 # 计算ma20
r2_sp.pop(0)
return ma20, r2_sp # 返回ma20 和 除去头部天数的新列表
def upgrade():
op.add_column('request',
sa.Column('numeric_base_payout', sa.Numeric(precision=15, scale=2),
default=0.0)
)
request = table('request',
column('id', sa.Integer),
column('base_payout', sa.Float),
column('numeric_base_payout', sa.Numeric(precision=15, scale=2)),
)
conn = op.get_bind()
requests_sel = select([request.c.id, request.c.base_payout])
requests = conn.execute(requests_sel)
for request_id, float_payout in requests:
decimal_payout = Decimal.from_float(float_payout)
decimal_payout *= 1000000
update_stmt = update(request)\
.where(request.c.id == request_id)\
.values({
'numeric_base_payout': decimal_payout,
})
conn.execute(update_stmt)
requests.close()
op.drop_column('request', 'base_payout')
op.alter_column('request',
column_name='numeric_base_payout',
new_column_name='base_payout',
existing_type=sa.Numeric(precision=15, scale=2),
existing_server_default=0.0)
def get_trip_dist(start_lon, start_lat, end_lon, end_lat):
"""Calculate trip distance from pickup and delivery location
When testing, dont calculate using a geocoding webservice.
If Geocoding fails, fall back to using Euclidean distance
"""
if not settings.TESTING:
try:
origin = str(start_lat) + ',' + str(start_lon)
dest = str(end_lat) + ',' + str(end_lon)
base_url = 'http://maps.googleapis.com/maps/api/distancematrix/json'
headers = {'content-type': 'application/json'}
data = {'origins': origin, 'destinations': dest, 'units': 'imperial'}
response = requests.get(base_url, params=data, headers=headers)
distance_meters = int(
response.json()['rows'][0]['elements'][0]['distance']['value'])
if distance_meters > 10:
print 'using google trip dist'
return distance_meters
except:
pass
distance_meters = (sin(radians(start_lat)) *
sin(radians(end_lat)) +
cos(radians(start_lat)) *
cos(radians(end_lat)) *
cos(radians(start_lon - end_lon)))
distance_meters = (degrees(acos(distance_meters))) * 69.09 * 1609.34
print 'using naive trip dist'
return Decimal.from_float(distance_meters)
def price_limit_reached(self, peer):
if peer in self.strategy.pending_sent_offers:
offer = self.strategy.pending_sent_offers[peer]
return (offer.is_too_low
and round(Decimal.from_float(offer.rate), 5) >= round(
self.strategy.max_rate, 5))
return False
def _to_decimal(amount):
if isinstance(amount, Decimal):
return amount
elif isinstance(amount, float):
return Decimal.from_float(amount)
else:
return Decimal(amount)
def prices(self, quantities, requirements):
"""
Return the prices for specified parts at specified quantities.
requirements must have a validate function that takes two arguments: an offer and the quantity
quantities must be a dictionary mapping reference numbers to quantities
"""
result = {}
for ref,quantity in self.quantities.iteritems():
info = self.match_info(ref)
if len(info) > 1:
result[ref] = {'error': 'Part not uniquely matched'}
continue
offers = filter(lambda x: requirements.validate(x, quantity), info[0].offers)
best = Decimal.from_float(1e15)
best_offer = None
for offer in offers:
price = offer.best_price(quantity)
if price is not None and price < best:
best = price
best_offer = offer
if best_offer is None:
result[ref] = {'error', 'No valid offers found'}
else:
result[ref] = {'price': best, 'offer': offer}
return result
def processInteract(session, redis):
today = date.today()
start = datetime.now()
start = start.replace(hour=0, minute=0, second=0, microsecond=0)
orders = SinaWeiboInteractOrder.queryTodo(session, today)
for order in orders:
logging.info('process Interact order: {id}'.format(id=order.order_id))
if SinaWeiboInteractChildOrder.search(session, order.order_id, start):
continue
child = SinaWeiboInteractChildOrder()
child.parent_order_id = order.order_id
child.create_at = datetime.now()
child.user_id = order.user_id
child.sina_blog_info_id = order.sina_blog_info_id
child.purchase_number = order.purchase_number
child.order_id = '{ss}{us}24'.format(
ss=datetime.strftime(datetime.now(), '%Y%m%d%H%M%S'),
us=str(Decimal.from_float(time.time()).quantize(
Decimal('0.000')))[11:])
child.status = ORDER_STATUS_DOING
child.update_at = datetime.now()
child.pay_at = order.pay_at
child.order_amount = 0
child.center = order.center
child.priority = 1
child.flag = ORDER_FLAG_DEFAULT
session.add(child)
session.commit()
def update_ui(self, state=True):
"""Updates various UI elements to match current settings,
UI selections etc.
"""
# Cost
in_us = self.application.config['settings']['user']['in_us']
cost_per_mb = Decimal("0.15") if in_us else Decimal("0.99")
free = self.free_radiobutton.get_active()
if free:
cost = 0
else:
cost = Decimal.from_float(
self.filesize / 1024.0 / 1024) / cost_per_mb
self.cost_label.set_label("Estimated Cost: $%.2f" % round(cost, 2))
self.cost_label.set_visible(cost!=0)
# If not yet configured, force the user to do so first
if not self.application.is_configured():
self.send_button.set_label('Setup your Kindle first')
self.configure_button.hide()
else:
self.send_button.set_label('Send to %s' % self.get_recipient())
self.configure_button.show()
# State
if state:
state = self.application.config['state']
self.free_radiobutton.set_active(state['free'])
self.objects.get_object('convert-checkbox').set_active(
state['convert'])
def test_convert_to(data):
if abs(data) < Decimal('1e16'):
number = convert_to.decimal(data)
assert number == Decimal.from_float(data).quantize(Decimal('1e-8'))
else:
with pytest.raises(InvalidOperation):
convert_to.decimal(data)
def vyhodnot(scoredResults, scoredRunId):
scoredRun = Run.objects.get(pk=int(scoredRunId))
for scoredResult in scoredResults:
scoredPerson = Person.objects.get(pk=scoredResult[0])
databaseResult = Result.objects.get(run = scoredRun, person = scoredPerson)
databaseResult.points = Decimal.from_float(scoredResult[2])
databaseResult.save()
databaseResult = None
results = Result.objects.all()
nullPoints()
for i in range(len(results)):
try:
newPos = Position.objects.get(person=results[i].person, season=results[i].run.season)
newPos.points += results[i].points
except Position.DoesNotExist:
newPos = Position(person=results[i].person, position_season = 0, season = results[i].run.season, position_category = 0, points = results[i].points)
newPos.save()
position = Position.objects.all().order_by('-points')
categories = Category.objects.all()
categoryPositionCursor = dict()
for category in categories:
categoryPositionCursor[category] = 1
for i in range(len(position)):
position[i].position_season = i+1
position[i].position_category = categoryPositionCursor[position[i].person.category]
categoryPositionCursor[position[i].person.category] += 1
position[i].save()
def to_decimal(value):
"""
Преобразование значения в большое число с фиксированной дробной частью.
При неудаче возвращается None
"""
value = to_float(value)
return None if value is None else Decimal.from_float(value)
def _distance(self, lat2, lng2):
a = abs(self.lat - lat2)
b = abs(self.lng - lng2)
s = 2*math.asin(math.sqrt(math.pow(math.sin(a/2),2)+math.cos(self.lat)*math.cos(lat2)*math.pow(math.sin(b/2),2)))
d = EARTH_R*Decimal.from_float(s)
d_i = d.to_integral()
return d_i
def turtlePath(path):
f = open(path, 'r')
lines = f.readlines()
num_obs, num_paths = lines[0].split(' ')
num_obs = int(num_obs)
num_paths = int(num_paths[0:len(num_paths)-1])
obs = {}
for ob in range(1, num_obs+1):
x,y = lines[ob].split(' ')
x = int(x)
y = int(y[0:len(y)-1])
obs[(x,y)] = True
curr_pos = (0,0)
#influences curr_pos delta for reach move based on direction turtle is facing
curr_dir = (0,1)
#max straight line distance from the origin
max_dist = 0
for l in range(num_obs+1, len(lines)):
command = lines[l]
c_type = command[0]
# print(c_type)
if c_type != 'M':
curr_dir = change_dir(c_type, curr_dir)
else:
dist = int(command[2:len(command)-1])
delta = collision_block(obs, curr_dir, curr_pos, dist)
curr_pos = (curr_pos[0]+delta[0], curr_pos[1]+delta[1])
hypotenuse = math.sqrt(curr_pos[0]**2 + curr_pos[1]**2)
max_dist = hypotenuse if hypotenuse > max_dist else max_dist
f.close()
return float(round(Decimal.from_float(max_dist), 2))
def simulation(request):
query = request.GET.get('q')
if query:
# There was a query entered.
results = Product.objects.filter(name=query)
else:
# If no query was entered, simply return all objects
results = None #Product.objects.all()
date = timezone.now()
try:
salesID = Sale.objects.latest('id').id+1
except ObjectDoesNotExist:
salesID = 1
items = Item.objects.filter(sale_id = salesID)
print(items)
subtotal = items.aggregate(Sum('total')).values()[0]
cash = Cashier.objects.get(id=1)
tax = Decimal.from_float((float(cash.tax)/100)).quantize(Decimal("0.00"))
if subtotal is not None:
total = (subtotal*(1+tax)).quantize(Decimal("0.00"))
else:
total = 0.00
tax *= 100
session = Sale(date_created = timezone.now(), subtotal = subtotal, tax = tax, payment = total, total = total)
form = SaleForm(request.POST, instance=session)
return render_to_response("simulation.html",{"form":form,"date": date, "sales": salesID, "ItemsParameter": items, "subtotal": subtotal, "tax":tax, "total":total, "results": results} , context_instance = RequestContext(request))
def to_positive_decimal(value):
"""
Преобразование значения в неотрицательное большое число с фиксированной дробной частью.
При неудаче возвращается None
"""
value = to_float(value)
return None if value is None or value < 0 else Decimal.from_float(value)
def test_deserialize(self):
# Given
class TestMixResponse(BaseResponse):
def __init__(self, text: str, success: bool, dec: Decimal,
uid: UUID, dt: datetime.datetime):
self.text = text
self.success = success
self.dec = dec
self.uid = uid
self.dt = dt
time = datetime.datetime.now()
uid = uuid.uuid4()
mix_response = TestMixResponse(text="bla bla",
success=True,
dec=Decimal.from_float(1.123),
uid=uid,
dt=time)
# When
response = mix_response.to_json()
# Then
assert response is not None
assert mix_response.text == response["text"]
assert mix_response.success == response["success"]
assert 1.12 == response["dec"]
assert str(mix_response.uid) == response["uid"]
assert time.isoformat() == str(response["dt"])
def price_advanced(self, reference, quantity, requirements):
"""
Find the price of a single item subject to various requirements
requirements must have a validate function that takes two arguments: an offer and the quantity
"""
info = self.match_info(reference)
if len(info) > 1:
return {'error': 'Part not uniquely matched'}
offers = filter(lambda x: requirements.validate(x, quantity), info[0].offers)
best = Decimal.from_float(1e15)
best_offer = None
for offer in offers:
price = offer.best_price(quantity)
if price is not None and price < best:
best = price
best_offer = offer
if best_offer is None:
return {'error': 'No valid offers found'}
else:
return {'price': best, 'offer': offer}
def newround(number, ndigits=None):
"""
See Python 3 documentation: uses Banker's Rounding.
Delegates to the __round__ method if for some reason this exists.
If not, rounds a number to a given precision in decimal digits (default
0 digits). This returns an int when called with one argument,
otherwise the same type as the number. ndigits may be negative.
See the test_round method in future/tests/test_builtins.py for
examples.
"""
return_int = False
if ndigits is None:
return_int = True
ndigits = 0
if hasattr(number, '__round__'):
return number.__round__(ndigits)
# Use the decimal module for simplicity of implementation (and
# hopefully correctness).
from decimal import Decimal, ROUND_HALF_EVEN
if ndigits < 0:
raise NotImplementedError('negative ndigits not supported yet')
exponent = Decimal('10') ** (-ndigits)
d = Decimal.from_float(number).quantize(exponent,
rounding=ROUND_HALF_EVEN)
if return_int:
return int(d)
else:
return float(d)
def __init__(self, owner, tag):
self.owner = owner
self.id = int(tag.attrib["key"])
self.type = int(tag.attrib["type"])
self.name = tag.attrib["name"]
self.flags = int(tag.attrib.get("flags", 0))
self._initial = Decimal.from_float(float(tag.attrib["initial"]))
def test_saving_and_retrieving_items(self):
create_two_agereements_with_periods()
agreements = Agreement.objects.all()
self.assertEqual(agreements.count(), 2)
self.assertEqual(agreements[1].start_date, date.today())
self.assertEqual(agreements[1].end_date, date(date.today().year+1, date.today().month, date.today().day))
self.assertEqual(agreements[1].negotiator.username, 'testUser')
self.assertEqual(agreements[1].company.name, 'company1')
self.assertAlmostEqual(agreements[1].credit_turnover, Decimal.from_float(1111.11), places=5)
self.assertAlmostEqual(agreements[1].debit_turnover, Decimal.from_float(123.45), places=5)
self.assertEqual(agreements[0].start_date, date.today())
self.assertEqual(agreements[0].end_date, date(date.today().year+4, date.today().month, date.today().day))
self.assertEqual(agreements[0].negotiator.username, 'testUser2')
self.assertEqual(agreements[0].company.name, 'company2')
self.assertAlmostEqual(agreements[0].credit_turnover, Decimal.from_float(5678.11), places=5)
self.assertAlmostEqual(agreements[0].debit_turnover, Decimal.from_float(9876.45), places=5)
def get(self, api_type):
# TODO: Get data
self.lat = RAD_K * Decimal.from_float(_get_float(self.get_argument('lat', ''), DEFAULT_LAT))
self.lng = RAD_K * Decimal.from_float(_get_float(self.get_argument('lng', ''), DEFAULT_LNG))
# TODO: Query out less point
presents = self.sql_session.query(Presentation).all()
final_presents = []
for present in presents:
lat2 = RAD_K*present.lat
lng2 = RAD_K*present.lng
d = self._distance(lat2, lng2)
if d < 1000:
present.distance_string = '%d m' % d
elif d<=5000:
present.distance_string = '%.2f km' % (float(d)/1000)
else:
continue
upload_file = FileList.by_present_id(present.p_key, self.sql_session).scalar()
present.file_url = '/download/' + upload_file.key + '/' + upload_file.filename + '.' + upload_file.file_type
present.img_url = '/download/' + upload_file.key + '/' + upload_file.filename + '.png'
final_presents.append(present)
if api_type == None:
self.render('querypresent.html', presents = final_presents)
elif api_type[1:] == 'json':
return_data = []
for present in final_presents:
return_data.append({
'title': present.title,
'owner': present.owner,
'distance': present.distance_string,
'created': present.created.strftime("%Y-%m-%d %H:%M"),
'updated': present.updated.strftime("%Y-%m-%d %H:%M"),
'file_url': present.file_url,
'img_url': present.img_url,
'lat': str(present.lat),
'lng': str(present.lng)}
)
self.write(json.dumps(return_data))
else:
raise self.HTTPError(500, 'Unknown api type')
def upgrade():
# Add discriminator column
op.add_column('modifier', sa.Column('_type', sa.String(length=20)))
# Create new subclass tables
op.create_table('absolute_modifier',
sa.Column('id', sa.Integer,
sa.ForeignKey('modifier.id'),
primary_key=True),
sa.Column('value', sa.Numeric(precision=15, scale=2),
nullable=False, server_default='0.0'))
op.create_table('relative_modifier',
sa.Column('id', sa.Integer, sa.ForeignKey('modifier.id'),
primary_key=True),
sa.Column('value', sa.Float, nullable=False, server_default='0.0'))
# Add new entries to the subclass tables for each modifier
conn = op.get_bind()
modifier_sel = select([modifier.c.id, modifier.c.value, modifier.c.type_])
modifiers = conn.execute(modifier_sel)
absolutes = []
relatives = []
for modifier_id, modifier_value, modifier_type in modifiers:
if modifier_type == 'absolute':
discriminator = 'AbsoluteModifier'
absolutes.append({
'id': modifier_id,
'value': Decimal.from_float(modifier_value) * 1000000,
})
elif modifier_type == 'percentage':
discriminator = 'RelativeModifier'
relatives.append({
'id': modifier_id,
'value': modifier_value / 100,
})
update_stmt = update(modifier)\
.where(modifier.c.id == modifier_id)\
.values({
'_type': discriminator,
})
conn.execute(update_stmt)
modifiers.close()
op.bulk_insert(abs_table, absolutes)
op.bulk_insert(rel_table, relatives)
# Drop the old value and type_ columns from modifier
op.drop_column('modifier', 'value')
op.drop_column('modifier', 'type_')
# Add the not-null constraint to the _type column
op.alter_column('modifier',
column_name='_type',
nullable=True,
existing_type=sa.String(length=20),
)
def recover(self, block):
p = block['prime']
points = block['points']
M = 0
for point in points:
point['li'] = self.lagrange_interpolate(point['id'], points)
coof = point['li'].pop()
M += Decimal.from_float(coof) * Decimal(point['shadow'])
SECRET = round(M) % p
return SECRET
def round(number, ndigits=None):
return_int = False
if ndigits is None:
return_int = True
ndigits = 0
if hasattr(number, "__round__"):
return number.__round__(ndigits)
if ndigits < 0:
raise NotImplementedError("negative ndigits not supported yet")
exponent = Decimal("10") ** (-ndigits)
d = Decimal.from_float(number).quantize(exponent, rounding=ROUND_HALF_EVEN)
if return_int:
return int(d)
else:
return float(d)
def get_bin_decimals(v, max_sample=100, default=3):
v = v.astype(float, raise_on_error=False)
if len(v) <= max_sample:
sample = v
else:
sample = random.sample(v, max_sample)
num_decimals = []
for e in sample:
# num_decimals.append(str(e).find('.'))
num_decimals.append(Decimal.from_float(e).as_tuple().exponent * -1)
try:
max_decimals = max(num_decimals)
except:
return default
return min((max_decimals + 1), default)
def _parse_expression(self, tokens):
expression = u''
for token in tokens:
if token in cal_callback._ops:
expression += cal_callback._ops[token]
else:
num = Util.cn2dig(token)
if num is None:
return None
expression += str(num)
res = None
INFO("expression: " + expression)
try:
res = eval(expression)
res = Decimal.from_float(res).quantize(Decimal('0.00'))
except Exception, ex:
ERROR("cal expression error:", ex)
def __init__(self, owner, tag):
self.owner = owner
self.amount = Decimal.from_float(float(tag.attrib["amount"]))
self.account = next(
x for x in self.owner.accounts if x.id == int(tag.attrib["account"])
)
self.mode_id = int(tag.attrib.get("paymode", 0))
self.flags = int(tag.attrib.get("flags", 0)) or None
self.payee_id = int(tag.attrib.get("payee", 0)) or None
self.category_id = int(tag.attrib.get("category", 0)) or None
self.wording = tag.attrib.get("wording")
self.info = tag.attrib.get("info")
self.date = from_gdate(int(tag.attrib["date"]))
self.dst_account_id = int(tag.attrib.get("dst_account", 0)) or None
self.id = None
def price(self, reference, quantity, seller):
"""
Return the best price for N parts from seller as a Decimal
"""
info = self.match_info(reference)
can_seller = self._canonicalize_name(seller)
if len(info) > 1:
raise ArgumentError("part is not uniquely matched", reference=reference)
offers = filter(lambda x: self._canonicalize_name(x.seller)==can_seller, info[0].offers)
best = Decimal.from_float(1e15)
for offer in offers:
price = offer.best_price(quantity)
if price is not None and price < best:
best = price
return best
def test_binary_floats(self):
# check that floats hash equal to corresponding Fractions and Decimals
# floats that are distinct but numerically equal should hash the same
self.check_equal_hash(0.0, -0.0)
# zeros
self.check_equal_hash(0.0, D(0))
self.check_equal_hash(-0.0, D(0))
self.check_equal_hash(-0.0, D('-0.0'))
self.check_equal_hash(0.0, F(0))
# infinities and nans
self.check_equal_hash(float('inf'), D('inf'))
self.check_equal_hash(float('-inf'), D('-inf'))
for _ in range(1000):
x = random.random() * math.exp(random.random()*200.0 - 100.0)
self.check_equal_hash(x, D.from_float(x))
self.check_equal_hash(x, F.from_float(x))
def newround(number, ndigits=None):
"""
See Python 3 documentation: uses Banker's Rounding.
Delegates to the __round__ method if for some reason this exists.
If not, rounds a number to a given precision in decimal digits (default
0 digits). This returns an int when called with one argument,
otherwise the same type as the number. ndigits may be negative.
See the test_round method in future/tests/test_builtins.py for
examples.
"""
return_int = False
if ndigits is None:
return_int = True
ndigits = 0
if hasattr(number, '__round__'):
return number.__round__(ndigits)
if ndigits < 0:
raise NotImplementedError('negative ndigits not supported yet')
exponent = Decimal('10') ** (-ndigits)
if PYPY:
# Work around issue #24: round() breaks on PyPy with NumPy's types
if 'numpy' in repr(type(number)):
number = float(number)
if not PY26:
d = Decimal.from_float(number).quantize(exponent,
rounding=ROUND_HALF_EVEN)
else:
d = from_float_26(number).quantize(exponent, rounding=ROUND_HALF_EVEN)
if return_int:
return int(d)
else:
return float(d)
def ppma(s, D=5):
print('<tr><th>1</th><th>2</th><th>3</th><th>4</th><th>5</th></tr>', file=utf8stdout)
frmt = '<tr class="{}"><td>{}</td><td>{}</td><td>{}</td><td>{}</td><td>{}</td></tr>'
letters_left = 256
def find_context(i):
k = 0
for j in range(min(i,D)+1):
f = s.find(s[i-j:i], 0, i-1)
if f == -1:
break
k = j
return s[i-k:i]
def context_stat(i, cont):
stat = defaultdict(lambda: 0)
p = 0
while p < i:
p = s.find(cont, p, i - 1)
if p == -1:
break
stat[s[p+len(cont)]] += 1
p += 1
return stat
def calc_numbers(i, context, seen=set()):
c = s[i]
stat = context_stat(i, context)
for b in seen:
del stat[b]
sm = sum(stat.values())
if c in stat.keys():
return ([sm], [], Fraction(stat[c], sm+1))
else: # need esc
if context:
taus, p_escs, p_a = calc_numbers(i, context[1:], set(stat.keys()) | seen)
else:
nonlocal letters_left
taus, p_escs, p_a = [], [], Fraction(1, letters_left)
letters_left -= 1
return ([sm] + taus, [Fraction(1, sm + 1)] + p_escs, p_a)
def fracs(fs):
return ' * '.join(map(frac, fs))
def frac(f):
if f.denominator == 1:
return str(f.numerator)
else:
return '{} / {}'.format(f.numerator, f.denominator)
i = 0
total = Decimal(0)
while i < len(s):
letter = s[i]
context = find_context(i)
taus, p_escs, p_a = calc_numbers(i, context)
if not context:
context = '-'
elif isinstance(context, bytes):
context = ' '.join(map(hex, context))
fr1 = fracs(p_escs)
#if fr1:
# fr1 = '$'+fr1+'$'
fr2 = frac(p_a)
#if fr2:
# fr2 = '$'+fr2+'$'
print(frmt.format('odd' if i % 2 == 0 else 'even',
letter,
context,
';'.join(map(str,taus)),
fr1,
fr2), file=utf8stdout)
i += 1
total += sum(map(lambda p: Decimal.from_float(-log(p, 2)), p_escs + [p_a]))
print('<tr><td colspan="5"><center>Total bits: {}</center></td></tr>'.format(ceil(total)+1), file=utf8stdout)
def test_decimal_should_convert_to_model():
field = s.Decimal()
assert field.json_to_model(999999.0) == Decimal('999999')
assert field.json_to_model(-0.99) == Decimal.from_float(-0.99)
assert field.json_to_model(0) == Decimal('0')
try:
xrange
except NameError:
xrange = range
def _get_float(s, default):
try:
f = float(s)
except ValueError:
return default
return f
EARTH_R = Decimal('6371009') # Meter
RAD_K = Decimal.from_float(math.pi) / Decimal(180)
DEFAULT_LAT = 25.0724763
DEFAULT_LNG = 121.5185635
class QueryPresentHandler(BaseHandler):
def get(self, api_type):
# TODO: Get data
self.lat = RAD_K * Decimal.from_float(_get_float(self.get_argument('lat', ''), DEFAULT_LAT))
self.lng = RAD_K * Decimal.from_float(_get_float(self.get_argument('lng', ''), DEFAULT_LNG))
# TODO: Query out less point
presents = self.sql_session.query(Presentation).all()
final_presents = []
for present in presents:
def cutDot(x):
return Decimal.from_float(x).quantize(Decimal('0.0000000'))
def round_decimal(self, x):
return Decimal.from_float(x).quantize(Decimal(".01"), rounding=ROUND_HALF_UP)
def __init__(self, payout):
self.raw_payout = payout
scaled = Decimal.from_float(self.raw_payout)
scaled *= 1000000
self.scaled_payout = scaled
def format_picture(conv, value, picture):
monetary = False
decimal_point = conv['decimal_point']
thousands_sep = conv[monetary and 'mon_thousands_sep' or 'thousands_sep']
percent = '%'
per_mille = '\u2030'
minus_sign = '-'
#grouping = conv[monetary and 'mon_grouping' or 'grouping']
if isinstance(value, float):
value = Decimal.from_float(value)
elif isinstance(value, _STR_NUM_TYPES):
value = Decimal(value)
elif not isinstance(value, Decimal):
raise ValueError(_('Picture requires a number convertable to decimal or float').format(picture))
if value.is_nan():
return 'NaN'
isNegative = value.is_signed()
pic, sep, negPic = picture.partition(';')
if negPic and ';' in negPic:
raise ValueError(_('Picture contains multiple picture sepearators {0}').format(picture))
if isNegative and negPic:
pic = negPic
if len([c for c in pic if c in (percent, per_mille) ]) > 1:
raise ValueError(_('Picture contains multiple percent or per_mille charcters {0}').format(picture))
if percent in pic:
value *= 100
elif per_mille in pic:
value *= 1000
intPart, sep, fractPart = pic.partition(decimal_point)
prefix = ''
numPlaces = 0
intPlaces = 0
grouping = 0
fractPlaces = 0
suffix = ''
if fractPart:
if decimal_point in fractPart:
raise ValueError(_('Sub-picture contains decimal point sepearators {0}').format(pic))
for c in fractPart:
if c.isdecimal():
numPlaces += 1
fractPlaces += 1
if suffix:
raise ValueError(_('Sub-picture passive character {0} between active characters {1}').format(c, fractPart))
else:
suffix += c
intPosition = 0
for c in reversed(intPart):
if c.isdecimal() or c == '#' or c == thousands_sep:
if prefix:
raise ValueError(_('Sub-picture passive character {0} between active characters {1}').format(c, intPart))
if c.isdecimal():
numPlaces += 1
intPlaces += 1
intPosition += 1
prefix = ''
elif c == '#':
numPlaces += 1
intPosition += 1
elif c == thousands_sep:
if not grouping:
grouping = intPosition
else:
prefix = c + prefix
if not numPlaces and prefix != minus_sign:
raise ValueError(_('Sub-picture must contain at least one digit position or sign character {0}').format(pic))
if intPlaces == 0 and fractPlaces == 0:
intPlaces = 1
return format_decimal(value, intPlaces=intPlaces, fractPlaces=fractPlaces,
sep=thousands_sep, dp=decimal_point, grouping=grouping,
pos=prefix,
neg=prefix if negPic else prefix + minus_sign,
trailpos=suffix,
trailneg=suffix)
