wkhtmltopdf OSError:[Errno 2]没有这样的文件或目录

时间:2018-04-12 10:43:04

标签: flask wkhtmltopdf

我正在尝试使用pdfkit在我的烧瓶应用程序中生成pdf。

在localhost上,应用程序运行正常,没有任何错误,我在ubuntu服务器vps上部署应用程序后,在尝试生成pdf文件时,它在控制台中给出了这个错误:

Apr 12 16:31:51 ubuntu gunicorn[18725]:     self.configuration = (Configuration() if configuration is None
Apr 12 16:31:51 ubuntu gunicorn[18725]:   File "/home/userp/app/venv/local/lib/python2.7/site-packages/pdfkit/configuration.py", line 18, in 
Apr 12 16:31:51 ubuntu gunicorn[18725]:     ['which', 'wkhtmltopdf'], stdout=subprocess.PIPE).communicate()[0].strip()
Apr 12 16:31:51 ubuntu gunicorn[18725]:   File "/home/userp/app/venv/local/lib/python2.7/site-packages/gevent/subprocess.py", line 585, in __
Apr 12 16:31:51 ubuntu gunicorn[18725]:     reraise(*exc_info)
Apr 12 16:31:51 ubuntu gunicorn[18725]:   File "/home/userp/app/venv/local/lib/python2.7/site-packages/gevent/subprocess.py", line 554, in __
Apr 12 16:31:51 ubuntu gunicorn[18725]:     restore_signals, start_new_session)
Apr 12 16:31:51 ubuntu gunicorn[18725]:   File "/home/userp/app/venv/local/lib/python2.7/site-packages/gevent/subprocess.py", line 1312, in _
Apr 12 16:31:51 ubuntu gunicorn[18725]:     raise child_exception
Apr 12 16:31:51 ubuntu gunicorn[18725]: OSError: [Errno 2] No such file or directory

如果我尝试打印self.wkhtmltopdf的值,则在 configuration.py 文件下方显示文件路径 / usr / bin / wkhtmltopdf

if not self.wkhtmltopdf:
    if sys.platform == 'win32':
        self.wkhtmltopdf = subprocess.Popen(
            ['where', 'wkhtmltopdf'], stdout=subprocess.PIPE).communicate()[0].strip()
    else:
        self.wkhtmltopdf = subprocess.Popen(
            ['which', 'wkhtmltopdf'], stdout=subprocess.PIPE).communicate()[0].strip()

try:
    with open(self.wkhtmltopdf) as f:
        pass
except IOError:
    raise IOError('No wkhtmltopdf executable found: "%s"\n'
                    'If this file exists please check that this process can '
                    'read it. Otherwise please install wkhtmltopdf - '
                    'https://github.com/JazzCore/python-pdfkit/wiki/Installing-wkhtmltopdf' % self.wkhtmltopdf)

同时输入which wkhtmltopdf会得到相同的结果,这意味着该程序已经安装。

我已经在我的机器上安装了所有必需的库。

最有趣的是,如果我从python manage.py runserver运行应用程序并尝试生成pdf文件,它会生成并且不会出现任何错误,但是从gunicorn和nginx出现错误!!!!! < / p>

我已经尝试了所有工作,我也看过很多文章,他们在谈论这个问题,但没有用!!!!

1 个答案:

答案 0 :(得分:0)

问题很可能是无法在服务器vps中以无头状态运行wkhtmltopdf。

请查看https://pypi.org/project/headless-pdfkit/0.1.1/#files

这还需要安装xvfb,它会在执行之前使用/ bin / bash \ nxvfb-run包装wkhtmltopdf命令。