以下代码块是类Dataview（QWidget）的一部分，它在main.py中调用。它创建了3个表; 出价，询问和历史记录并通过API自动从各种交易所获取数据。
该应用程序可以工作，但在任务管理器中查看时，我的内存使用量越来越大 - 我认为这是由于我运行这些线程的方式。我在这里做错了什么？
编辑：
MAIN.PY
import sys
from PyQt4 import QtCore, QtGui, Qt
from datetime import datetime
import time
import thread
from apis import API_Bitstamp_usd
class Dataview(QtGui.QFrame):
def __init__(self, parent=None):
QtGui.QWidget.__init__(self, parent)
self.setFixedSize(152,730)
self.setStyleSheet('background: #444;background-color: QLinearGradient(x1:0, y1:0,x2:0, y2:1,stop:1 #212121,stop:0.4 #343434/*,stop:0.2 #343434,stop:0.1 #ffaa00*/);margin-bottom:-1px;padding-bottom:1px;')
self.setup_table_asks()
self.setup_table_bids()
self.setup_table_hist()
self.setup_label()
self.start_threads()
def setup_table_asks(self):
self.table_asks = QtGui.QTableWidget(self)
self.table_asks.setGeometry(10,30,132,180)
self.table_asks.setStyleSheet('color: lightblue; background: #444;background-color: QLinearGradient(x1:0, y1:0,x2:0, y2:1,stop:1 #212121,stop:0.4 #343434/*,stop:0.2 #343434,stop:0.1 #ffaa00*/);margin-bottom:-1px;padding-bottom:1px;')
self.table_asks.setFrameShadow(QtGui.QFrame.Raised)
self.table_asks.horizontalHeader().hide()
self.table_asks.verticalHeader().hide()
self.table_asks.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
self.table_asks.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
self.table_asks.setEditTriggers(QtGui.QAbstractItemView.NoEditTriggers)
self.table_asks.setSelectionMode(QtGui.QAbstractItemView.NoSelection)
self.table_asks.setShowGrid(False)
self.table_asks.setRowCount(300)
self.table_asks.setColumnCount(3)
self.table_asks.setColumnWidth(0,50)
self.table_asks.setColumnWidth(1,40)
self.table_asks.setColumnWidth(2,40)
self.table_asks.setCursor(QtCore.Qt.SizeVerCursor)
self.table_asks.scrollToBottom()
def setup_table_bids(self):
self.table_bids = QtGui.QTableWidget(self)
self.table_bids.setGeometry(10,230,132,180)
self.table_bids.setStyleSheet('color: lightblue; background: #444;background-color: QLinearGradient(x1:0, y1:0,x2:0, y2:1,stop:1 #212121,stop:0.4 #343434/*,stop:0.2 #343434,stop:0.1 #ffaa00*/);margin-bottom:-1px;padding-bottom:1px;')
self.table_bids.setFrameShadow(QtGui.QFrame.Raised)
self.table_bids.horizontalHeader().hide()
self.table_bids.verticalHeader().hide()
self.table_bids.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
self.table_bids.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
self.table_bids.setEditTriggers(QtGui.QAbstractItemView.NoEditTriggers)
self.table_bids.setSelectionMode(QtGui.QAbstractItemView.NoSelection)
self.table_bids.setShowGrid(False)
self.table_bids.setRowCount(300)
self.table_bids.setColumnCount(3)
self.table_bids.setColumnWidth(0,50)
self.table_bids.setColumnWidth(1,40)
self.table_bids.setColumnWidth(2,40)
self.table_bids.setCursor(QtCore.Qt.SizeVerCursor)
def setup_table_hist(self):
self.table_hist = QtGui.QTableWidget(self)
self.table_hist.setGeometry(10,414,132,206)
self.table_hist.setStyleSheet('color: lightblue;background: #444;background-color: QLinearGradient(x1:0, y1:0,x2:0, y2:1,stop:1 #212121,stop:0.4 #343434/*,stop:0.2 #343434,stop:0.1 #ffaa00*/);margin-bottom:-1px;padding-bottom:1px;')
self.table_hist.setFrameShadow(QtGui.QFrame.Raised)
self.table_hist.horizontalHeader().hide()
self.table_hist.verticalHeader().hide()
self.table_hist.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
self.table_hist.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
self.table_hist.setEditTriggers(QtGui.QAbstractItemView.NoEditTriggers)
self.table_hist.setSelectionMode(QtGui.QAbstractItemView.NoSelection)
self.table_hist.setShowGrid(False)
self.table_hist.setRowCount(150)
self.table_hist.setColumnCount(3)
self.table_hist.setColumnWidth(0,45)
self.table_hist.setColumnWidth(1,45)
self.table_hist.setColumnWidth(2,40)
self.table_hist.setCursor(QtCore.Qt.SizeVerCursor)
def setup_label(self):
self.label = QtGui.QLabel(self)
self.label.setGeometry(10,210,132,20)
self.label.setFrameShadow(QtGui.QFrame.Sunken)
self.label.setText('last_price')
self.label.setStyleSheet('color: lightblue;background: #444;background-color: QLinearGradient(x1:0, y1:0,x2:0, y2:1,stop:1 #212121,stop:0.4 #343434/*,stop:0.2 #343434,stop:0.1 #ffaa00*/);margin-bottom:-1px;padding-bottom:1px;')
self.label.setAlignment(QtCore.Qt.AlignCenter)
self.title = QtGui.QLabel(self)
self.title.setGeometry(10,10,132,20)
self.title.setStyleSheet('color: silver;background: #444;background-color: QLinearGradient(x1:0, y1:0,x2:0, y2:1,stop:1 #212121,stop:0.4 #343434/*,stop:0.2 #343434,stop:0.1 #ffaa00*/);margin-bottom:-1px;padding-bottom:1px;')
self.title.setText('Bitstamp')
self.title.setAlignment(QtCore.Qt.AlignCenter)
def start_threads(self):
thread.start_new_thread(self.fill_table_bids, ())
thread.start_new_thread(self.fill_table_asks, ())
thread.start_new_thread(self.fill_table_hist, ())
def fill_table_bids(self):
while True:
ticker = API_Bitstamp_usd()
x = ticker.get_depth()
bids = x[0]
row = 0
depth = 0
for i in bids:
price = i[0]
qty = i[1]
depth = format(float(depth) + float(qty), '.1f')
self.table_bids.setRowHeight(row, 12)
tw = QtGui.QTableWidgetItem(str(price))
self.table_bids.setItem(row,0,tw)
tw = QtGui.QTableWidgetItem(str(qty))
tw.setTextAlignment(5)
self.table_bids.setItem(row,1,tw)
tw = QtGui.QTableWidgetItem(str(depth))
tw.setTextAlignment(5)
self.table_bids.setItem(row,2,tw)
row = row + 1
time.sleep(2)
def fill_table_asks(self):
while True:
ticker = API_Bitstamp_usd()
x = ticker.get_depth()
asks = x[1]
row = 0
depth = 0
for i in asks[:300]:
depth = depth + float(i[1])
for i in reversed(asks[:300]):
price, qty = i[0], i[1]
depth = format(float(depth) - float(qty), '.1f')
self.table_asks.setRowHeight(row, 12)
tw = QtGui.QTableWidgetItem(str(price))
self.table_asks.setItem(row,0,tw)
tw = QtGui.QTableWidgetItem(str(qty))
tw.setTextAlignment(5)
self.table_asks.setItem(row,1,tw)
if depth > 0:
tw = QtGui.QTableWidgetItem(str(depth))
tw.setTextAlignment(5)
self.table_asks.setItem(row,2,tw)
row = row + 1
time.sleep(2)
def fill_table_hist(self):
while True:
ticker = API_Bitstamp_usd()
x = ticker.get_history()
row = 0
for i in x:
timestamp = datetime.fromtimestamp(float(i[0])).strftime('%H:%M:%S')
price = i[1]
qty = i[2]
type = i[3]
self.table_hist.setRowHeight(row, 12)
tw = QtGui.QTableWidgetItem(str(timestamp))
self.table_hist.setItem(row,0,tw)
tw = QtGui.QTableWidgetItem(str(price))
tw.setTextAlignment(5)
self.table_hist.setItem(row,1,tw)
tw = QtGui.QTableWidgetItem(str(qty))
tw.setTextAlignment(5)
if type == 'sell':
tw.setTextColor(QtGui.QColor('red'))
else:
tw.setTextColor(QtGui.QColor('green'))
self.table_hist.setItem(row,2,tw)
row = row + 1
self.label.setText(str(x[0][1]))
time.sleep(2)
if __name__ == "__main__":
app = QtGui.QApplication(sys.argv)
myapp = Dataview()
myapp.show()
sys.exit(app.exec_())
APIS.PY
import urllib2
import json
class API_Bitstamp_usd:
def __init__(self):
self.url = 'https://www.bitstamp.net/api/'
def get_depth(self):
try:
url = self.url + 'order_book/'
json_obj = urllib2.urlopen(url)
data = json.load(json_obj)
asks_, bids_ = [], []
for i in data['bids']:
price, qty = format(float(i[0]), '.2f'), format(float(i[1]), '.2f')
bids_.append([float(price), float(qty)])
for i in data['asks']:
price, qty = format(float(i[0]), '.2f'), format(float(i[1]), '.2f')
asks_.append([float(price), float(qty)])
return bids_, asks_
except:
pass
def get_history(self):
try:
url = self.url + 'transactions/'
json_obj = urllib2.urlopen(url)
data = json.load(json_obj)
history_ = []
for i in data:
timestamp, price, amount, type = i['date'], format(float(i['price']), '.3f'), format(float(i['amount']), '.2f'), ''
history_.append([timestamp, float(price), float(amount), type])
return history_
except:
pass