Python stuck – Displaying output of last execution for any code executed – Buffer Overflow/Cache issue

Hey Guys, I recently ran into a problem while playing with Python. The output on the console was displaying the output of a previous code that I had modified. I was playing around PyQt4 to PyQt5 conversion of Sentdex’s PyQt4 YouTube tutorial right here. Everythng went fine until I tried to print the entire page on the console..See the tragic buggy code below:

import bs4 as bs
import sys
import urllib.request
from PyQt5.QtWebEngineWidgets import QWebEnginePage
from PyQt5.QtWidgets import QApplication
from PyQt5.QtCore import QUrl

class Page(QWebEnginePage):
    def __init__(self, url):
        self.app = QApplication(sys.argv)
        QWebEnginePage.__init__(self)
        self.html = ''
        self.loadFinished.connect(self._on_load_finished)
        self.load(QUrl(url))
        self.app.exec_()

    def _on_load_finished(self):
        self.html = self.toHtml(self.Callable)
        print('Load finished')

    def Callable(self, html_str):
        self.html = html_str
        self.app.quit()


def main():
    page = Page('https://pythonprogramming.net/parsememcparseface/')
    soup = bs.BeautifulSoup(page.html, 'html.parser')
    js_test = soup.find('p', class_='jstest')
    print js_test.text
    #print (soup) # DO NOT DO THIS...This may kill your buffer...Commented it off for your safety


if __name__ == '__main__': main()

See the code section print (soup). I think this created the problem.

Now when I ran another code be it as simple as print(“Hello”) on VS code, the output I got was :

Load finished
Look at you shinin!
Press any key to continue . . .

The uniqueness of this problem was that I only faced this problem on my VS Code IDE only. Execution on direct Anaconda console did not show this issue.

I searched the entire web, but did not find any solution.

I tried to reboot. Tried to flush the buffer. Nothing helped.

Finally, out of desperation, I went on a deletion spree. I manually went inside the temp files in C:\Users\xxx\AppData\Local and started a deletion rampage…removed many files and folder remotely related to python,vscode and conda.

This gave an error warning the first time I executed my program again…then on subsequent run…the issue was resolved…my python is back to its normal self again…

I was surprised that I was not able to find any solution on the net for this. This inspired me to start my own blog to record the problems I face, especially as a noob in Python.

Hope this blog helps others like me.