FileNotFoundError：[Errno 2]没有这样的文件或目录：使用python pdfkit时'which'

Question

我有一个奇怪的错误。我尝试使用pdfkit将HTML字符串转换为PDF，但我得到一个“没有这样的文件或目录：'哪个'”。我知道pdfkit使用wkhtmltopdf，它试图通过使用哪个找到这个实用程序。我不知道发生了什么。 '哪个'工作正常，wkhtmltopdf安装在/ usr / bin /上。我在这行中得到错误：

pdf = pdfkit.from_string(html, False, options=options)

和追溯：

Traceback:  

File "/srv/zboss-git/venv/lib/python3.5/site-packages/django/core/handlers/exception.py" in inner
  39.             response = get_response(request)

File "/srv/zboss-git/venv/lib/python3.5/site-packages/django/core/handlers/base.py" in _get_response
  187.                 response = self.process_exception_by_middleware(e, request)

File "/srv/zboss-git/venv/lib/python3.5/site-packages/django/core/handlers/base.py" in _get_response
  185.                 response = wrapped_callback(request, *callback_args, **callback_kwargs)

File "/srv/zboss-git/venv/lib/python3.5/site-packages/django/contrib/auth/decorators.py" in _wrapped_view
  23.                 return view_func(request, *args, **kwargs)

File "/srv/zboss-git/venv/lib/python3.5/site-packages/django/contrib/auth/decorators.py" in _wrapped_view
  23.                 return view_func(request, *args, **kwargs)

File "/srv/zboss-git/zboss/issues/views.py" in export_comments
  453.     pdf = pdfkit.from_string(html, False, options=options)

File "/srv/zboss-git/venv/lib/python3.5/site-packages/pdfkit/api.py" in from_string
  66.                configuration=configuration)

File "/srv/zboss-git/venv/lib/python3.5/site-packages/pdfkit/pdfkit.py" in __init__
  38.         self.configuration = (Configuration() if configuration is None

File "/srv/zboss-git/venv/lib/python3.5/site-packages/pdfkit/configuration.py" in __init__
  18.                     ['which', 'wkhtmltopdf'], stdout=subprocess.PIPE).communicate()[0].strip()

File "/usr/lib/python3.5/subprocess.py" in __init__
  947.                                 restore_signals, start_new_session)

File "/usr/lib/python3.5/subprocess.py" in _execute_child
  1551.                     raise child_exception_type(errno_num, err_msg)

Exception Type: FileNotFoundError at /issues/export_comments/
Exception Value: [Errno 2] No such file or directory: 'which'

Answer 1

我找到了解决方案。

根据python-pdfkit的文档：

Warning! Version in debian/ubuntu repos have reduced functionality (because it compiled without the wkhtmltopdf QT patches), such as adding outlines, headers, footers, TOC etc. To use this options you should install static binary from wkhtmltopdf site or you can use this script.

脚本：

https://github.com/JazzCore/python-pdfkit/blob/master/travis/before-script.sh

我卸载我的版本并运行此版本。我还手动设置了我的配置：

    config = pdfkit.configuration(wkhtmltopdf=bytes('/usr/bin/wkhtmltopdf', 'utf-8'))
    pdf = pdfkit.from_string(html, False, options=options, configuration=config)

瞧！