python - Amazon EC2 实例上的 pyvirtualdisplay

Question

我正在尝试在 Amazon EC2 上运行 selenium。我使用 pyvirtualdisplay 作为 xvfb 包装器。我在 python 中运行了以下命令。

from pyvirtualdisplay import Display
from selenium import webdriver
display = Display(visible=0, size=(1024, 768))
display.start()

到目前为止一切都很顺利。
但当我这样做时:

driver = webdriver.Firefox()

我收到此错误:

Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.6/site-   packages/selenium/webdriver/firefox/webdriver.py", line 59, in __init__
self.binary, timeout),
File "/usr/lib/python2.6/site-packages/selenium/webdriver/firefox/extension_connection.py", line 47, in  __init__
self.binary.launch_browser(self.profile)
File "/usr/lib/python2.6/site-packages/selenium/webdriver/firefox/firefox_binary.py", line 66, in launch_browser
self._wait_until_connectable()
File "/usr/lib/python2.6/site- packages/selenium/webdriver/firefox/firefox_binary.py", line 100, in _wait_until_connectable
raise WebDriverException("The browser appears to have exited "
selenium.common.exceptions.WebDriverException: Message: The browser   appears to have exited before we could connect. If you specified a    log_file in the FirefoxBinary constructor, check it for details.

Answer 1

在互联网上花了很多时间寻找解决方案并尝试了所有可能的方法之后，对我有用的一件事就是这个。
https://superuser.com/questions/870702/aws-ec2-linux-headless-firefox-issue-xvfb-undefined-symbol-pixman-glyph-cache

正如答案所说:
它正在尝试加载 wring pixman 所以。删除/usr/local/lib/libpixman-1.so.0并重试，它将使Xvfb使用具有此符号的分发pixman库。