pyvirtualdisplay在Amazon EC2实例上

Question

我正在尝试在Amazon EC2上运行硒。 我正在使用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好。
但是当我这样做时：

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

在互联网上花费了许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：
它正试图加载扭曲的pixman。 删除/usr/local/lib/libpixman-1.so.0并再试一次，它将使Xvfb使用带有此符号的发行pixman库。