如何在Scrapinghub上安装xvfb以使用Selenium?

时间:2017-06-09 15:17:13

标签: selenium selenium-webdriver scrapy xvfb scrapinghub

我在我的蜘蛛(Scrapy)中使用 Python-Selenium ,使用Selenium我应该在 Scrapinghub 上安装xvfb。

当我使用apt-get安装xvfb时,我有以下错误消息:

E: Could not open lock file /var/lib/dpkg/lock - open (13: Permission denied)                                                                                                                                                                
E: Unable to lock the administration directory (/var/lib/dpkg/), are you root?

Scrapinghub 上安装 xvfb 还有其他方法吗?

更新1

我看了this,我试图使用 docker ,我在这个阶段陷入困境

shub-image init --requirements path/to/requirements.txt

我读了这个

  

如果在运行shub-image init时遇到类似这样的ImportError:   您应该确保安装了最新版本的shub   运行:

     

$ pip install shub --upgrade

但我总是有这个错误

Traceback (most recent call last):
  File "/usr/local/bin/shub-image", line 7, in <module>
    from shub_image.tool import cli
  File "/usr/local/lib/python2.7/dist-packages/shub_image/tool.py", line 42, in <module>
    command_module = importlib.import_module(module_path)
  File "/usr/lib/python2.7/importlib/__init__.py", line 37, in import_module
    __import__(name)
  File "/usr/local/lib/python2.7/dist-packages/shub_image/push.py", line 4, in <module>
    from shub.deploy import list_targets
ImportError: cannot import name list_targets

2 个答案:

答案 0 :(得分:3)

你试过了吗?

sudo apt-get install xvfb

另一种方法是手动编译包,一种:

apt-get source xvfb
./configure --prefix=$HOME/myapps
make
make install

第三种方法是从源网页https://pkgs.org/download/xvfb

下载.deb

下载后,您可以将其转到下载源的路径:

mv xvfb_1.16.4-1_amd64.deb /var/cache/apt/archives/

然后你改变目录并执行:

sudo dpkg -i xvfb_1.16.4-1_amd64.deb

就是这样!

答案 1 :(得分:1)

我解决了我的问题(在scrapinghub中使用selenium

1 - for docker中的 xvfb 我使用

RUN apt-get install -qy xvfb
用于创建泊坞窗图片

2 - 我使用了this  和安装geckodriver我使用此代码

#
# Geckodriver Dockerfile
#

FROM blueimp/basedriver

# Add the Firefox release channel of the Debian Mozilla team:
RUN echo 'deb http://mozilla.debian.net/ jessie-backports firefox-release' >> \
  /etc/apt/sources.list \
  && curl -sL https://mozilla.debian.net/archive.asc | apt-key add -

# Install Firefox:
RUN export DEBIAN_FRONTEND=noninteractive \
  && apt-get update \
  && apt-get install --no-install-recommends --no-install-suggests -y \
    firefox \
  # Remove obsolete files:
  && apt-get clean \
  && rm -rf \
    /tmp/* \
    /usr/share/doc/* \
    /var/cache/* \
    /var/lib/apt/lists/* \
    /var/tmp/*

# Install geckodriver:
RUN export BASE_URL=https://github.com/mozilla/geckodriver/releases/download \
  && export VERSION=$(curl -sL \
    https://api.github.com/repos/mozilla/geckodriver/releases/latest | \
    grep tag_name | cut -d '"' -f 4) \
  && curl -sL \
  $BASE_URL/$VERSION/geckodriver-$VERSION-linux64.tar.gz | tar -xz \
  && mv geckodriver /usr/local/bin/geckodriver

USER webdriver

CMD ["geckodriver", "--host", "0.0.0.0"]

来自here