Python PyQT从.txt文件读取并更新TextEdit
以下是我试图做的: 1) 我一次存储10篇文章,使用Twitter API来流式传输文章。它们被存储到一个名为lrgDict.txt的文本文件中 导入tweepy、datetime、sys、os、time、pprint 从tweepy.api导入api 用户密钥“” 消费者_secret=“” access_token=“” access_token_secret=“” key=tweepy.OAuthHandler(使用者密钥,使用者密钥) key.set_access_token(access_token,access_token\u secret) 类TwitterAPIStreamDictionary(tweepy.StreamListener): 输出={} 定义初始化(self,api=None): 打印(datetime.datetime.time(datetime.datetime.now()) self.api=api或api() self.j=0 self.k=10 def on_状态(自身、状态): self.output[status.id]={ “文本”:status.text.encode('utf-8'), “用户”:状态。用户。屏幕名称。编码('utf-8'), “地点”:status.place, “位置”:status.user.location} 输出=打开('dictLrg.txt','ab') 对于self.output中的tweet: output.write(“\n”.encode(encoding='utf-8')+”用户:“.encode(encoding='utf-8')+self.output[tweet]['User']+”\n.encode(encoding='utf-8')+”文本:“.encode(encoding='utf-8')+self.output[tweet]['Text']+'\n.encode(encoding='utf-8')) pprint.pprint(“用户:”.encode(encoding='utf-8')+self.output[tweet]['User']+“文本:”.encode(encoding='utf-8')+self.output[tweet]['Text']) output.flush() output.close() 如果self.jPython PyQT从.txt文件读取并更新TextEdit,python,timer,pyqt,Python,Timer,Pyqt,以下是我试图做的: 1) 我一次存储10篇文章,使用Twitter API来流式传输文章。它们被存储到一个名为lrgDict.txt的文本文件中 导入tweepy、datetime、sys、os、time、pprint 从tweepy.api导入api 用户密钥“” 消费者_secret=“” access_token=“” access_token_secret=“” key=tweepy.OAuthHandler(使用者密钥,使用者密钥) key.set_access_token(acces
from PyQt4 import QtCore, QtGui
import sys, tweepy, TwitterAPIStreamSentiment, time, os
from tweepy.api import API
try:
_fromUtf8 = QtCore.QString.fromUtf8
except AttributeError:
def _fromUtf8(s):
return s
try:
_encoding = QtGui.QApplication.UnicodeUTF8
def _translate(context, text, disambig):
return QtGui.QApplication.translate(context, text, disambig, _encoding)
except AttributeError:
def _translate(context, text, disambig):
return QtGui.QApplication.translate(context, text, disambig)
class Ui_Form(QtGui.QWidget):
def __init__(self):
QtGui.QWidget.__init__(self)
self.setupUi(self)
def setupUi(self, Form):
Form.setObjectName(_fromUtf8("Form"))
Form.resize(800, 600)
self.verticalLayout_2 = QtGui.QVBoxLayout(Form)
self.verticalLayout_2.setObjectName(_fromUtf8("verticalLayout_2"))
self.verticalLayout = QtGui.QVBoxLayout()
self.verticalLayout.setObjectName(_fromUtf8("verticalLayout"))
self.searchText = QtGui.QLineEdit(Form)
self.searchText.setObjectName(_fromUtf8("searchText"))
self.verticalLayout.addWidget(self.searchText)
self.submitButton = QtGui.QPushButton(Form)
self.submitButton.setObjectName(_fromUtf8("submitButton"))
self.verticalLayout.addWidget(self.submitButton)
self.resultsText = QtGui.QPlainTextEdit (Form)
self.resultsText.setReadOnly(True)
self.resultsText.setObjectName(_fromUtf8("resultsText"))
self.verticalLayout.addWidget(self.resultsText)
self.verticalLayout_2.addLayout(self.verticalLayout)
self.retranslateUi(Form)
QtCore.QMetaObject.connectSlotsByName(Form)
def retranslateUi(self, Form):
Form.setWindowTitle(_translate("Form", "Form", None))
self.submitButton.setText(_translate("Form", "Submit", None))
self.submitButton.clicked.connect(self.printResults)
def printResults(self):
stream = tweepy.streaming.Stream(TwitterAPIStreamSentiment.key, TwitterAPIStreamSentiment.TwitterAPIStreamDictionary())
stream.filter(track=[str(self.searchText.text())], async='true')
file = open('dictLrg.txt', 'r', encoding="utf8").read()
QtCore.QTimer.singleShot(15000, lambda: self.resultsText.insertPlainText(file))
if __name__ == '__main__':
app = QtGui.QApplication(sys.argv)
ex = Ui_Form()
ex.show()
sys.exit(app.exec())
我需要帮助的是:
1) 我如何让PyQT知道它调用的类何时完成了10篇文章的存储
2) 一旦PyQT附加到文本编辑后,如何重复该过程
3) 这是我的第一个Python项目,任何建设性的批评都受到热烈欢迎
我的最终目标是阅读推文,并对帖子进行实时情绪分析
谢谢大家 您基本上需要实现信号和插槽,我制作了一个示例来说明这一点,但该示例基于您的逻辑,而不是twiter api
from PyQt4 import QtGui, QtCore
import sys
class FetchData(QtCore.QObject):
fetchFinished = QtCore.pyqtSignal(str)
def __init__(self, *args):
super(FetchData, self).__init__(*args)
@QtCore.pyqtSlot()
def run(self, searchStr):
rtString = "Some data from no where : %s" % searchStr
self.fetchFinished.emit(str(rtString))
class BASEGUICLS(QtGui.QDialog):
def __init__(self,parent=None):
super(BASEGUICLS, self).__init__(parent)
self.verticalLayout = QtGui.QVBoxLayout()
self.searchString = QtGui.QLineEdit()
self.resultsText = QtGui.QPlainTextEdit()
self.fetchButton = QtGui.QPushButton("Fetch")
self.stopButton = QtGui.QPushButton("Stop")
self.verticalLayout.addWidget(self.searchString)
self.verticalLayout.addWidget(self.resultsText)
self.verticalLayout.addWidget(self.fetchButton)
self.verticalLayout.addWidget(self.stopButton)
self.setLayout(self.verticalLayout)
self.fetchData = FetchData()
self.fetchData.fetchFinished.connect(self.updateResult)
self.fetchButton.clicked.connect(self.getData)
self.stopButton.clicked.connect(self.stopFetch)
self.timer = QtCore.QTimer(self)
self.timer.timeout.connect(self.refreshResult)
def getData(self):
self.timer.start(500)
def refreshResult(self):
searchStr = str(self.searchString.text())
if not searchStr:
self.stopFetch()
raise RuntimeError("Missing Search String")
self.fetchData.run(searchStr)
def stopFetch(self):
self.timer.stop()
def updateResult(self, value):
self.resultsText.appendPlainText(value)
def main():
app = QtGui.QApplication(sys.argv)
ex = BASEGUICLS(None)
ex.show()
sys.exit(app.exec_())
if __name__ == "__main__":
main()
首先,不要将密钥发布到网上:)