Develop Reference

How to Stream Mp3 music from web using Python PyQt5?

I want to stream mp3 file from web using python PyQt5.I have researched a lot and only found code for streaming wav file.
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtMultimedia import *
import urllib.request
import threading
import time
class Streamer:
def __init__(self,url):
self.url = url
self.fancy = urllib.request.URLopener()
self.web = self.fancy.open(self.url)
self.content_len = int(self.web.headers["Content-Length"])
self.data = self.web.read(1024*1024)
self.buffer = QBuffer()
self.buffer.writeData(self.data[250:])
self.buffer.open(QBuffer.ReadWrite)
threading.Thread(target=self.stream).start()
self.format = QAudioFormat()
self.format.setSampleRate(48000)
self.format.setChannelCount(2)
self.format.setSampleSize(16)
self.format.setCodec("audio/pcm")
self.format.setByteOrder(QAudioFormat.LittleEndian)
self.format.setSampleType(QAudioFormat.SignedInt)
self.audio = QAudioOutput(self.format)
self.audio.start(self.buffer)
def stream(self):
# while True:
# self.sound_data = self.web.read(1024*1024)
# if not self.sound_data:
# break
# self.buffer.buffer().append(self.sound_data)
# time.sleep(2)
while len(self.data) < self.content_len:
self.sound_data = self.web.read(1024*1024)
self.buffer.buffer().append(self.sound_data)
self.data+=self.sound_data
time.sleep(2)
self.buffer.buffer().clear()
del self.data
if __name__ == "__main__":
app = QApplication([])
streamer = Streamer("https://raw.githubusercontent.com/PremKumarMishra/Stream-Songs/main/Audio.wav")
app.exec_()
I checked but cant add MPEG-3(mp3 codec) codec in QAudioFormat.So this current code does not work for mp3.

The basic behavior of QMediaPlayer should be enough to manage buffering of simple audio streams, as the backend will consider the 100% of buffer size as enough to guarantee playing.
In case you want more control over the buffer state, you need to implement a custom QIODevice subclass to act as a middle layer between QMediaPlayer and the download process.
In the following example I'm using QNetworkAccessManager to download the stream, the readyRead signal of the QNetworkReply is then connected to a function that reads the raw bytes, and emits a buffer status considering the current available read data and the minimum size set for the buffer.
The first time the received data has reached the minimum size, it begins to emit the readyRead signal, and if the player has not been started yet (no media set), it sets the media using the Buffer instance, and is then ready to play.
from PyQt5 import QtCore, QtWidgets, QtNetwork, QtMultimedia
url = 'https://url.to/stream'
Errors = {}
for k, v in QtMultimedia.QMediaPlayer.__dict__.items():
if isinstance(v, QtMultimedia.QMediaPlayer.Error):
Errors[v] = k
class Buffer(QtCore.QIODevice):
buffering = QtCore.pyqtSignal(object, object)
fullBufferEmitted = False
def __init__(self, reply, minBufferSize=250000):
super().__init__()
self.minBufferSize = max(200000, minBufferSize)
self.reply = reply
self.data = bytes()
# the network reply is on another thread, use a mutex to ensure that
# no simultaneous access is done in the meantime
self.mutex = QtCore.QMutex()
# this is important!
self.setOpenMode(self.ReadOnly|self.Unbuffered)
self.reply.readyRead.connect(self.dataReceived)
def dataReceived(self):
self.mutex.lock()
self.data += self.reply.readAll().data()
dataLen = len(self.data)
self.mutex.unlock()
self.buffering.emit(dataLen, self.minBufferSize)
if not self.fullBufferEmitted:
if dataLen < self.minBufferSize:
return
self.fullBufferEmitted = True
self.readyRead.emit()
def isSequential(self):
return True
def readData(self, size):
self.mutex.lock()
data = self.data[:size]
self.data = self.data[size:]
self.mutex.unlock()
return data
def bytesAvailable(self):
return len(self.data) + super().bytesAvailable()
class Player(QtWidgets.QWidget):
def __init__(self):
super().__init__()
layout = QtWidgets.QVBoxLayout(self)
self.playButton = QtWidgets.QPushButton('Play', enabled=False)
layout.addWidget(self.playButton)
self.volumeSlider = QtWidgets.QSlider(QtCore.Qt.Horizontal)
layout.addWidget(self.volumeSlider)
self.statusLabel = QtWidgets.QLabel('Waiting')
self.statusLabel.setFrameShape(
self.statusLabel.StyledPanel|self.statusLabel.Sunken)
layout.addWidget(self.statusLabel)
self.player = QtMultimedia.QMediaPlayer(volume=16)
self.volumeSlider.setValue(self.player.volume())
self.networkManager = QtNetwork.QNetworkAccessManager()
self.url = QtCore.QUrl(url)
self.media = QtMultimedia.QMediaContent(self.url)
reply = self.networkManager.get(QtNetwork.QNetworkRequest(self.url))
self.buffer = Buffer(reply)
self.playButton.clicked.connect(self.play)
self.volumeSlider.valueChanged.connect(self.player.setVolume)
self.player.error.connect(self.error)
self.buffer.buffering.connect(self.buffering)
def error(self, error):
errorStr = 'Error: {} ({})'.format(
Errors.get(error, 'Unknown error'), int(error))
self.statusLabel.setText(errorStr)
print(errorStr)
def buffering(self, loaded, minBufferSize):
self.statusLabel.setText('Buffer: {}%'.format(int(loaded / minBufferSize * 100)))
if self.player.media().isNull() and loaded >= minBufferSize:
self.player.setMedia(self.media, self.buffer)
self.playButton.setEnabled(True)
self.playButton.setFocus()
self.statusLabel.setText('Ready to play')
def play(self):
if self.player.state() == self.player.PlayingState:
self.player.pause()
self.playButton.setText('Play')
else:
self.player.play()
self.playButton.setText('Pause')
app = QtWidgets.QApplication([])
w = Player()
w.show()
app.exec_()
Note that:
as soon as QMediaPlayer begins to read the stream, the buffer length will obviously become smaller, as there's no way to know or control how the backend access the stream: when the player is reading (which doesn't mean it's playing), it will read the stream anyway;
due to the reason above, the shown buffer size is only "guessed" as soon as the media is set, based on the data read and the data received from the network reply;
you might want to control the media player status in case the buffer goes too low (but you must consider what explained above), and eventually pause it;

show the download percentage progressbar in python [duplicate]

I have made a Desktop Application using Python and used PyQt5 and Pytube which could download video from youtube. When download is in Progress, I want to show user an animation. In Fact I did it, but when the file is getting downloaded the PyQt window seems like freezing and everything just gets paused until the download is complete. So, Does anyone know why is this happening? How do I fix it?
Here's the code snippet:
def download_created(self, qual): # Used in 'selection' method
selected_stream = yt.streams.get_by_resolution(qual)
self.progress_func()
try:
self.download_btn.setCurrentIndex(-1)
selected_stream.download(self.askLocation() + "/")
except:
pass
# This gets the quality that the user chooses
def selection(self):
global quality
quality = self.download_btn.currentText()
try:
self.download_created(quality) # Calls a method called 'download'
except:
self.start_anime()
# Fetching the details about the Link from Youtube
def download_youtube(self):
global check
if check != self.get_input():
check = self.get_input()
self.download_btn.clear()
enter_url = self.get_input()
try:
global yt
yt = pytube.YouTube(
enter_url,
on_progress_callback = on_progress,
on_complete_callback = self.complete_func)
self.start_anime()
except:
self.input_error()
VIDEO_TITLE = (yt.title)
global VIDEO_ID
VIDEO_ID = (yt.video_id)
videos = yt.streams.filter(mime_type="video/mp4", progressive="True")
# Display all the available qualities
for i in videos:
self.download_btn.addItem(i.resolution)
self.download_btn.currentIndexChanged.connect(self.selection)

You have to execute the time consuming tasks in another thread, for example in your case the task of getting the streams and downloading.
import sys
import threading
from functools import cached_property
from PyQt5 import QtCore, QtWidgets
import pytube
class QPyTube(QtCore.QObject):
initialized = QtCore.pyqtSignal(bool, str)
download_started = QtCore.pyqtSignal()
download_progress_changed = QtCore.pyqtSignal(int)
download_finished = QtCore.pyqtSignal()
def __init__(self, url):
super().__init__()
self._url = url
self._yt = None
self._mutex = threading.Lock()
threading.Thread(target=self._init, daemon=True).start()
#property
def url(self):
return self._url
#cached_property
def resolutions(self):
return list()
def _init(self):
with self._mutex:
self.resolutions.clear()
try:
self._yt = pytube.YouTube(
self.url,
on_progress_callback=self._on_progress,
on_complete_callback=self._on_complete,
)
streams = self._yt.streams.filter(mime_type="video/mp4", progressive="True")
except Exception as e:
self.initialized.emit(False, str(e))
return
with self._mutex:
self.resolutions = [stream.resolution for stream in streams]
self.initialized.emit(True, "")
def download(self, resolution, directory):
threading.Thread(
target=self._download, args=(resolution, directory), daemon=True
).start()
def _download(self, resolution, directory):
stream = self._yt.streams.get_by_resolution(resolution)
self.download_started.emit()
stream.download(directory)
def _on_progress(self, stream, chunk, bytes_remaining):
self.download_progress_changed.emit(
100 * (stream.filesize - bytes_remaining) // stream.filesize
)
def _on_complete(self, stream, filepath):
self.download_finished.emit()
class MainWindow(QtWidgets.QMainWindow):
def __init__(self, parent=None):
super().__init__(parent)
self.le_url = QtWidgets.QLineEdit("http://youtube.com/watch?v=2lAe1cqCOXo")
self.lbl_error = QtWidgets.QLabel()
self.btn_search = QtWidgets.QPushButton("Search")
self.cmb_resolutions = QtWidgets.QComboBox()
self.le_directory = QtWidgets.QLineEdit("")
self.btn_download = QtWidgets.QPushButton("Download")
self.pgb_download = QtWidgets.QProgressBar()
central_widget = QtWidgets.QWidget()
self.setCentralWidget(central_widget)
lay = QtWidgets.QGridLayout(central_widget)
lay.addWidget(self.le_url, 0, 0)
lay.addWidget(self.btn_search, 0, 1)
lay.addWidget(self.cmb_resolutions, 1, 0)
lay.addWidget(self.le_directory, 1, 1)
lay.addWidget(self.btn_download, 1, 2)
lay.addWidget(self.pgb_download, 2, 0, 1, 3)
self.btn_download.setEnabled(False)
self._qpytube = None
self.btn_search.clicked.connect(self.handle_search_clicked)
self.btn_download.clicked.connect(self.handle_download_clicked)
def handle_search_clicked(self):
self.cmb_resolutions.clear()
self.btn_search.setEnabled(False)
self.btn_download.setEnabled(False)
self.lbl_error.clear()
self._qpytube = QPyTube(self.le_url.text())
self._qpytube.initialized.connect(self.handle_initialized)
self._qpytube.download_progress_changed.connect(self.pgb_download.setValue)
self._qpytube.download_started.connect(self.handle_download_started)
self._qpytube.download_finished.connect(self.handle_download_finished)
#QtCore.pyqtSlot(bool, str)
def handle_initialized(self, status, error=""):
if status:
self.cmb_resolutions.addItems(self._qpytube.resolutions)
self.btn_download.setEnabled(True)
else:
self.lbl_error.setText(error)
self.btn_search.setEnabled(True)
def handle_download_clicked(self):
self._qpytube.download(
self.cmb_resolutions.currentText(), self.le_directory.text()
)
self.btn_search.setEnabled(False)
self.btn_download.setEnabled(False)
self.le_directory.setEnabled(False)
def handle_download_started(self):
self.lbl_error.clear()
print("started")
def handle_download_finished(self):
self.pgb_download.setValue(100)
self.btn_search.setEnabled(True)
self.btn_download.setEnabled(True)
self.le_directory.setEnabled(True)
print("finished")
def main(args):
app = QtWidgets.QApplication(args)
w = MainWindow()
w.show()
app.exec_()
if __name__ == "__main__":
main(sys.argv)

not responding in youtube downloader kivy app

I wrote this program with Python:
import os
from kivy.app import App
from kivy.uix.label import Label
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.textinput import TextInput
from kivy.uix.button import Button
from time import sleep
import pytube
import scrapetube
from pathlib import Path
save_addr = f"{os.environ['USERPROFILE']}\Downloads\Youtube DL"
print(save_addr)
layout = BoxLayout
def youtube_dl(video,addr):
#yt = pytube.YouTube(f"{link.text}")
#ys = yt.streams.get_highest_resolution()
#ys.download()
video = str(video.text)
try:
yt = pytube.YouTube(video)
ys = yt.streams.get_highest_resolution()
ys.download(output_path=addr)
except pytube.exceptions.RegexMatchError:
print('The Regex pattern did not return any matches for the video: {}'.format(video))
except pytube.exceptions.ExtractError:
print('An extraction error occurred for the video: {}'.format(video))
except pytube.exceptions.VideoUnavailable:
print('The following video is unavailable: {}'.format(video))
class cd:
"""Context manager for changing the current working directory"""
def __init__(self, newPath):
self.newPath = os.path.expanduser(newPath)
def __enter__(self):
self.savedPath = os.getcwd()
os.chdir(self.newPath)
def __exit__(self, etype, value, traceback):
os.chdir(self.savedPath)
class MyGrid(layout):
def __init__(self, **kwargs):
super().__init__(**kwargs)
self.orientation = "vertical"
self.spacing = 20
self.padding = [10, 10]
self.cols = 1
self.label = Label(text="Enter link of Video You Want to Download!")
self.add_widget(self.label)
self.link = TextInput(hint_text="Example: youtube.com/watch?v=MXDHK_MqRsk", multiline=False)
self.add_widget(self.link)
self.btn = Button(text="OK!")
self.btn.bind(on_press=lambda x:self.callback())
self.add_widget(self.btn)
sleep(3)
def callback(self):
def dl(video,addr,DL=True):
try:
yt = pytube.YouTube(video)
if DL:
ys = yt.streams.get_highest_resolution()
cd(addr)
ys.download(output_path=addr)
except pytube.exceptions.RegexMatchError:
print('The Regex pattern did not return any matches for the video: {}'.format(video))
except pytube.exceptions.ExtractError:
print('An extraction error occurred for the video: {}'.format(video))
except pytube.exceptions.VideoUnavailable:
print('The following video is unavailable: {}'.format(video))
return yt
video = str(self.link.text)
title = str(dl(video,self.link,DL=False).title)
self.label.text = f"Download : \"{title}\" , Save in:"
self.link.text = f"{save_addr}"
self.btn.text = "Download video!"
self.btn.bind(on_press=lambda x:dl(video,self.link.text))
class MyKivy(App):
def build(self):
return MyGrid()
if __name__ == "__main__":
MyKivy().run()
My problem is that when I put the video link to the program and click on download, when downloading the video from YouTube, the message not responding is displayed, but after the download is complete, the program returns to normal:
image of this error
What can I do to prevent the message not responding from being displayed?

To prevent this, you have to use multithreading, that means you can do multiple tasks simulatiously, that will prevent the UI from freezing because it will running in a thread that is not in the same thread that the downloader is running on. you will make a function to run the downloader in threading like this:
import threading
def run_thread(self,*args):
thread_dl = thrading.Thread(target = self.downloader,args = (arg1,arg2,arg3))
thread_dl.start()
you will edit this function to be the button on_press function

How to download a file using PySide/PyQt from a website

I have this code that receives all of the networking resources of a web page.
I took this code from this site so I don't know how it works but I know that it receives all of the networking resources of a web page, which is what I need.
This is my code:
import sys, time
from PySide.QtCore import QUrl, SIGNAL
from PySide.QtGui import QApplication
from PySide.QtWebKit import QWebPage, QWebView, QWebSettings
from PySide.QtNetwork import QNetworkAccessManager, QNetworkRequest
#reload(sys)
#sys.setdefaultencoding('utf-8')
fn_log = 'url_dd.txt'
fp_log = open(fn_log, 'ab+')
class WebPage(QWebPage):
def __init__(self, logger=None, parent=None):
super(WebPage, self).__init__(parent)
def javaScriptConsoleMessage(self, message, lineNumber, sourceID):
sys.stderr.write('Javascritp error at line number %d\n' % (lineNumber))
sys.stderr.write('%s\n' % (message, ))
sys.stderr.write('Source ID: %s\n' % (sourceID, ))
class Crawler(QApplication):
def __init__(self, url):
super(Crawler, self).__init__(sys.argv)
self.url = url
self.web_view = QWebView()
self.web_page = WebPage()
self.web_view.setPage(self.web_page)
self.web_frame = self.web_page.mainFrame()
self.network = NetworkAccessManager()
self.web_page.setNetworkAccessManager(self.network)
self.settings = self.web_page.settings().globalSettings()
self.settings.setAttribute(QWebSettings.PluginsEnabled, False)
QWebSettings.clearMemoryCaches()
self.web_view.resize(1024, 9000)
self.connect(self.web_page, SIGNAL('loadFinished(bool)'), self.loadFinished)
print('Before loading')
self.web_view.load(QUrl(self.url))
print('After loading')
def loadFinished(self, ok):
print('Start loadFinished()')
print('Start writing')
#with open('content_dd.txt', 'ab+') as fp:
#fp.write(self.web_frame.toHtml().toUtf8())
print('End writing')
print('End loadFinished()')
try:
self.quit()
except Exception as e:
print('FATAL ERROR: %s' % (str(e)))
class NetworkAccessManager(QNetworkAccessManager):
def __init__(self):
super(NetworkAccessManager, self).__init__()
# QNetworkAccessManager.__init__(self)
self.connect(self, SIGNAL('finished (QNetworkReply *)'), self.finishd)
def createRequest(self, operation, request, data):
# url = request.url().toString()
self.setNetworkAccessible(self.Accessible)
return QNetworkAccessManager.createRequest(self, operation, request, data)
def finishd(self, reply):
print('In NetworkAccessManager finishd')
url = str(reply.url().toString())
log = '%s: %s\n' % (time.ctime(), url)
#fp_log.write(log)
print(reply)
print(reply.request())
print(log)
print(url)
if __name__ == '__main__':
url = 'http://need4bit.com'
crawler = Crawler(url)
sys.exit(crawler.exec_())
How should I modify this code so it could save all the resources into a directory.

How do I use multiple threads with PySide and Twython?

I'm trying to write a small python app, using PySide for the GUI and Twython as a Twitter API library, to catch a stream from Twitter.
The problem that I am having is that when I click "Start Monitoring Twitter" button, the UI freezes until the stream is complete, at which point the code continues to execute and disables the Start button and enables the Stop button. Here's the UI:
Everything else seems to work -- if I leave it, then the CSV file is created as I suspect -- the Twython components seem to be working as expected.
Line 151 is where the streaming from Twitter is engaged when I click start:
self.stream.statuses.filter(track=self.search_term)
How can I move the streaming to a separate thread and then use the Stop button on the UI to tell Twython to complete capturing the stream and exit?
I need to be able to send the MyStreamer instance to another thread and then send it the .disconnect() signal to have it terminate capturing the stream.
Here's the full code:
#!/usr/bin/env python
# -*- coding: utf-8 -*-
import sys
import platform
import PySide
from PySide.QtGui import QApplication, QMainWindow, QPushButton, QCheckBox, QTextEdit
from time import sleep
from ui_tweetstream import Ui_MainWindow
from twython import Twython
from twython import TwythonStreamer
import csv
class MainWindow(QMainWindow, Ui_MainWindow):
def __init__(self, parent=None):
super(MainWindow, self).__init__(parent)
self.setupUi(self)
# Set up Variables
self.tweet_fav_count = True
self.tweet_geocoordinates = True
self.tweet_id = True
self.tweet_language = True
self.tweet_orig_tweet_id = True
self.tweet_orig_username = True
self.tweet_retweeted = True
self.tweet_sensitive = True
self.tweet_source_app = True
self.tweet_timestamp = True
self.tweet_user_name = True
self.search_term = "#bigdata"
self.tweets_to_get = 1000
# Bind the interface
self.check_tweet_fav_count.clicked.connect(self.setTweetFavCount)
self.check_tweet_geocoordinates.clicked.connect(self.setTweetGeocoordinates)
self.check_tweet_id.clicked.connect(self.setTweetID)
self.check_tweet_language.clicked.connect(self.setTweetLanguage)
self.check_tweet_orig_tweet_id.clicked.connect(self.setTweetOrigTweetID)
self.check_tweet_orig_username.clicked.connect(self.setTweetOrigUsername)
self.check_tweet_retweeted.clicked.connect(self.setTweetRetweeted)
self.check_tweet_sensitive.clicked.connect(self.setTweetSensitive)
self.check_tweet_source_app.clicked.connect(self.setTweetSourceApp)
self.check_tweet_timestamp.clicked.connect(self.setTweetTimestamp)
self.check_tweet_user_name.clicked.connect(self.setTweetUsername)
self.button_start.clicked.connect(self.streamStart)
self.button_stop.clicked.connect(self.streamStop)
# Set the initial states
self.button_stop.setEnabled(False)
APP_KEY = ''
APP_SECRET = ''
OAUTH_TOKEN = ''
OAUTH_TOKEN_SECRET = ''
self.t = Twython(APP_KEY, APP_SECRET, OAUTH_TOKEN, OAUTH_TOKEN_SECRET)
self.stream = MyStreamer(APP_KEY,APP_SECRET,OAUTH_TOKEN,OAUTH_TOKEN_SECRET)
self.stream.init_mainWindow(self)
def streamStop(self):
print "Stopping stream"
# Enable other controls here
self.button_stop.setEnabled(False)
self.button_start.setEnabled(True)
self.setControlStates(True)
self.stream.stopStream()
def setControlStates(self, state):
self.check_tweet_fav_count.setEnabled(state)
self.check_tweet_geocoordinates.setEnabled(state)
self.check_tweet_id.setEnabled(state)
self.check_tweet_language.setEnabled(state)
self.check_tweet_orig_tweet_id.setEnabled(state)
self.check_tweet_orig_username.setEnabled(state)
self.check_tweet_retweeted.setEnabled(state)
self.check_tweet_sensitive.setEnabled(state)
self.check_tweet_source_app.setEnabled(state)
self.check_tweet_timestamp.setEnabled(state)
self.check_tweet_user_name.setEnabled(state)
self.search_box.setEnabled(state)
self.num_tweets_box.setEnabled(state)
# Functions for determining what to track
def setTweetFavCount(self):
self.tweet_fav_count = not self.tweet_fav_count
print "tweet_fav_count:", self.tweet_fav_count
def setTweetGeocoordinates(self):
self.tweet_geocoordinates = not self.tweet_geocoordinates
print "tweet_geocoordinates:", self.tweet_geocoordinates
def setTweetID(self):
self.tweet_id = not self.tweet_id
print "tweet_id:", self.tweet_id
def setTweetLanguage(self):
self.tweet_language = not self.tweet_language
print "tweet_language:", self.tweet_language
def setTweetOrigTweetID(self):
self.tweet_orig_tweet_id = not self.tweet_orig_tweet_id
print "tweet_orig_tweet_id:", self.tweet_orig_tweet_id
def setTweetOrigUsername(self):
self.tweet_orig_username = not self.tweet_orig_tweet_id
print "tweet_orig_username:", self. tweet_orig_username
def setTweetRetweeted(self):
self.tweet_retweeted = not self.tweet_retweeted
print "tweet_retweeted:", self.tweet_retweeted
def setTweetSensitive(self):
self.tweet_sensitive = not self.tweet_sensitive
print "tweet_sensitive:", self.tweet_sensitive
def setTweetSourceApp(self):
self.tweet_source_app = not self.tweet_source_app
print "tweet_source_app:", self.tweet_source_app
def setTweetTimestamp(self):
self.tweet_timestamp = not self.tweet_timestamp
print "tweet_timestamp:", self.tweet_timestamp
def setTweetUsername(self):
self.tweet_user_name = not self.tweet_user_name
print "tweet_user_name:", self.tweet_user_name
# Functions for starting and stopping the stream
def streamStart(self):
print "Starting stream"
self.setControlStates(False)
# Disable other controls here
self.button_start.setEnabled(False)
self.button_stop.setEnabled(True)
# Hack to try to disable the UI
# sleep(0.25)
# Get the active search term
self.search_term = self.search_box.text()
# Get the number of tweets
self.tweets_to_get = int(self.num_tweets_box.text())
# Set the streamer
self.stream.set_start_criteria(self.tweets_to_get)
self.stream.statuses.filter(track=self.search_term)
class MyStreamer(TwythonStreamer):
def init_mainWindow(self, the_main_window):
self.main_window = the_main_window
self.stop = False
self.header_done = False
def set_start_criteria(self, numTweets):
self.maxTweets = numTweets
self.tweetCount = 0
print "Number of tweets to get:", self.maxTweets
def stopStream(self):
self.stop = True
def on_success(self, data):
if 'text' in data:
self.tweetCount += 1
print "tweetCount:", self.tweetCount
#tweet = data['text'].encode('utf-8')
theTweet = data
writer = TweetMonkey()
writer.assignMainWindow(self.main_window, self.header_done)
self.header_done = True
writer.process(theTweet)
# Want to disconnect after the first result?
if self.stop is True or self.tweetCount >= self.maxTweets:
self.disconnect()
def on_error(self, status_code, data):
print status_code, data
class TweetMonkey:
def assignMainWindow(self,the_main_window, is_header_done):
self.main_window = the_main_window
self.header_done = is_header_done
def clean(self,text):
text = text.replace("\n","; ")
text = text.replace('"', "'")
text = text.replace(','," ")
return text
def create_header(self):
header = []
tweets = open("tweets.csv", 'ab+')
wr = csv.writer(tweets, dialect='excel')
if self.main_window.tweet_id is True:
header.append("id")
if self.main_window.tweet_language is True:
header.append("lang")
if self.main_window.tweet_user_name is True:
header.append("user_name")
header.append("tweet")
if self.main_window.tweet_retweeted is True:
header.append("retweeted")
if self.main_window.tweet_fav_count is True:
header.append("favorite_count")
if self.main_window.tweet_source_app is True:
header.append("source")
if self.main_window.tweet_orig_tweet_id is True:
header.append("in_reply_to_status_id")
if self.main_window.tweet_orig_username is True:
header.append("in_reply_to_screen_name")
# header.append("in_reply_to_user_id")
if self.main_window.tweet_sensitive is True:
header.append("possibly_sensitive")
if self.main_window.tweet_geocoordinates is True:
header.append("geo")
if self.main_window.tweet_timestamp is True:
header.append("created_at")
wr.writerow(header)
tweets.close()
def process(self, tweet):
if not self.header_done:
self.create_header()
self.header_done = True
# Create the file or append to the existing
theOutput = []
tweets = open("tweets.csv", 'ab+')
wr = csv.writer(tweets, dialect='excel')
if self.main_window.tweet_id is True:
theOutput.append(tweet['id'])
if self.main_window.tweet_language is True:
theOutput.append(tweet['lang'].encode('utf-8'))
if self.main_window.tweet_user_name is True:
theOutput.append(tweet['user']['name'].encode('utf-8', 'replace'))
theOutput.append(self.clean(tweet['text']).encode('utf-8', 'replace'))
if self.main_window.tweet_retweeted is True:
theOutput.append(tweet['retweeted'])
if self.main_window.tweet_fav_count is True:
theOutput.append(tweet['favorite_count'])
if self.main_window.tweet_source_app is True:
theOutput.append(self.clean(tweet['source']).encode('utf-8', 'replace'))
if self.main_window.tweet_orig_tweet_id is True:
theOutput.append(tweet['in_reply_to_status_id'])
if self.main_window.tweet_orig_username is True:
theOutput.append(tweet['in_reply_to_screen_name'])
#theOutput.append(tweet['in_reply_to_user_id'])
if self.main_window.tweet_sensitive is True:
if tweet.get('possibly_sensitive'):
theOutput.append(tweet['possibly_sensitive'])
else:
theOutput.append("False")
if self.main_window.tweet_geocoordinates is True:
if tweet['geo'] is not None:
if tweet['geo']['type'] == 'Point':
lat = str(tweet['geo']['coordinates'][0]) + " "
lon = str(tweet['geo']['coordinates'][1])
theOutput.append(lat + lon)
else:
theOutput.append(tweet['geo'])
else:
theOutput.append(tweet['geo'])
if self.main_window.tweet_timestamp is True:
theOutput.append(tweet['created_at'])
wr.writerow(theOutput)
tweets.close()
if __name__ == '__main__':
app = QApplication(sys.argv)
frame = MainWindow()
frame.show()
app.exec_()

I know this is an old post but I ran into a similar problem in a simple app I recently wrote, my solution was to use threading.
I used the worker from:
https://pymotw.com/2/threading/
and the method described in:
http://aadrake.com/using-twitter-as-a-stream-processing-source.html
Basically running the Twython stream as a separate thread feeding text to a queue then I run the rest of the program in a separate loop reading from the queue.