Load a local html file into a QWebView in Python

Question

Here's my problem: I want to load a local html file into a QWebView in Python. EDIT: I use PySide as a Qt package.

My code:

class myWindow(QWidget):
    def __init__(self, parent=None):
        self.view = QWebView(self)
        filepath = "file://" + os.path.join(os.path.dirname(__file__), 'googlemap.html')
        self.view.load(QUrl(filepath))

This is just showing me a blank widget. If I change

self.view.load(QUrl(filepath)

by

self.view.load(QUrl("http://www.google.com/"))

It works fine.

However, the file is clearly in the good directory and I can open the same file directly with my browser.

EDIT 2: The problem appears after an update on my Raspberry Pi 2 (which runs the code above)

Have you tried with setUrl() instead of load() ?

IAmInPLS
– IAmInPLS

2016-04-20 08:46:03 +00:00
Commented Apr 20, 2016 at 8:46 — IAmInPLS
– IAmInPLS, Commented Apr 20, 2016 at 8:46
Yes, I did. And it doesn't work either. Thank you

Stef
– Stef

2016-04-20 09:35:00 +00:00
Commented Apr 20, 2016 at 9:35 — Stef
– Stef, Commented Apr 20, 2016 at 9:35

Pawel Miech · Accepted Answer · 2016-04-20 08:48:53Z

11

Two observations:

path needs to be absolute (not relative)
use QUrl.fromLocalFile(path)

so something like this

file_path = os.path.abspath(os.path.join(os.path.dirname(__file__), "aa.html"))
local_url = QUrl.fromLocalFile(file_path)
browser.load(local_url)

should work.

Full example:

from PyQt4.QtWebKit import QWebView
from PyQt4.QtGui import QApplication
from PyQt4.QtCore import QUrl
import sys
import os

app = QApplication(sys.argv)

browser = QWebView()
file_path = os.path.abspath(os.path.join(os.path.dirname(__file__), "aa.html"))
local_url = QUrl.fromLocalFile(file_path)
browser.load(local_url)

browser.show()

app.exec_()

answered Apr 20, 2016 at 8:48

Pawel Miech

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5 Comments

Stef Over a year ago

Thank you for your answer but it didn't work... when I print local_url, I got the right path to my file though BTW, I omit that I use PySide

Pawel Miech Over a year ago

is your file valid html? I'm not very familiar with pyside but in general it should work same. Have you tried printing your url? If you print url and click it in browser does it open all right? You should really post your full code that will help to reproduce problem (including imports), as you see there are different python qt wrappers, there are also different QT version and it may matter for your problem.

Stef Over a year ago

Yes i did write the URL directly in a web browser and it worked. Although, I don't think the other part of my code are the cause because the program wrked fine until 2 weeks ago. I think it may be the update on my machine (a raspberry Pi 2) which may be the cause of the disfunctioning.

Pawel Miech Over a year ago

hmm so this is important detail. Add all this to your question I'm sure someone should be able to help

jrel Over a year ago

This will probably not help OP, but to others who have stumbled on this the same as I did, this only works for me if the file I'm loading ends with .html suffix. Otherwise, it loads as a blank page.

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