python 中的 wkhtmltopdf 不工作
wkhtmltopdf in python not working
我正尝试在 python 中使用 wkhtmltopdf 做一些事情。但是，当我尝试执行命令时，我得到了这个：
>>> import subprocess
>>> cmd = ["bash", "xvfb-run", "-a", "-s", "\"-screen 0 1024x768x24\"", "wkhtmltopdf", "-B", "0", "-L", "0", "-R", "0", "-T", "0", "-O", "Portrait", "-s", "A4", "-dpi", "300", "--disable-smart-shrinking", "-zoom", "1.5", "-q", "http://127.0.0.1:9000/p/public/7caf00fa-b2ae-11e4-b194-d43d7edafecd/poster/pdf.php", "-",]
>>> subprocess.Popen(cmd,stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.STDOUT).communicate()
("Unknown switch -i\n\nName:\n wkhtmltopdf 0.9.6\n\nSynopsis:\n wkhtmltopdf [OPTIONS]... <input file> [More input files] <output file>\n \nDescription:\n Converts one or more HTML pages into a PDF document, using wkhtmltopdf patched\n qt.\n\nGeneral Options:\n -b, --book Set the options one would usually set when printing a book\n --collate Collate when printing multiple copies\n --copies <number> Number of copies to print into the pdf file (default 1)\n --cover <url> Use html document as cover. It will be inserted before the toc with no headers and footers\n -H, --default-header Add a default header, with the name of the page to the left, and the page number to the right, this is short for: --header-left='[webpage]' --header-right='[page]/[toPage]' --top 2cm --header-line\n --extended-help Display more extensive help, detailing less common command switches\n -h, --help Display help\n -O, --orientation <orientation> Set orientation to Landscape or Portrait\n -s, --page-size <size> Set paper size to: A4, Letter, etc.\n --password <password> HTTP Authentication password\n -p, --proxy <proxy> Use a proxy\n -q, --quiet Be less verbose\n -t, --toc Insert a table of content in the beginning of the document\n --username <username> HTTP Authentication username\n -V, --version Output version information an exit\nContact:\n If you experience bugs or want to request new features please visit \n <http://code.google.com/p/wkhtmltopdf/issues/list>, if you have any problems\n or comments please feel free to contact me: see \n <http://www.madalgo.au.dk/~jakobt/#about>\n\n\n\n\n\n\n\n\n\n\n\n\n\n", None)
相关问题似乎是 "Unknown switch -i"，但是如您所见，命令中的任何地方都没有 '-i' 标志。
此外，当从命令行 运行 时，该命令工作正常：
~$ xvfb-run -a -s "-screen 0 1024x768x24" wkhtmltopdf -B 0 -L 0 -R 0 -T 0 -O Portrait -s A4 --dpi 300 --disable-smart-shrinking --zoom 1.5 -q http://127.0.0.1:9000/p/public/7caf00fa-b2ae-11e4-b194-d43d7edafecd/poster/pdf.php -
%PDF-1.4
1 0 obj
<<
/Title (??Planted baskets)
/Producer (wkhtmltopdf)
/CreationDate (D:20150219165915)
>>
endobj
4 0 obj
<<
/Type /ExtGState
/SA true
.... etc (this is the pdf output I want)
知道出了什么问题吗？
问题是你的参数列表中有 "-dpi"，它应该是 "--dpi"，与 --zoom 相同的问题。
您还应该从列表中删除 "bash"，并将 "\"-screen 0 1024x768x24\"" 更改为 "-screen 0 1024x768x24"。
你也可以试试shlex.split:
In [6]: shlex.split("xvfb-run -a -s '-screen 0 1024x768x24' wkhtmltopdf -B 0 -L 0 -R 0 -T 0 -O Portrait -s A4 --dpi 300 --disable-smart-shrinking --zoom 1.5 -q http://127.0.0.1:9000/p/public/7caf00fa-b2ae-11e4-b194-d43d7edafecd/poster/pdf.php -")
Out[6]: ['xvfb-run', '-a', '-s', '-screen 0 1024x768x24', 'wkhtmltopdf', '-B', '0', '-L', '0', '-R', '0', '-T', '0', '-O', 'Portrait', '-s', 'A4', '--dpi', '300', '--disable-smart-shrinking', '--zoom', '1.5', '-q', 'http://127.0.0.1:9000/p/public/7caf00fa-b2ae-11e4-b194-d43d7edafecd/poster/pdf.php', '-']
我正尝试在 python 中使用 wkhtmltopdf 做一些事情。但是，当我尝试执行命令时，我得到了这个：
>>> import subprocess
>>> cmd = ["bash", "xvfb-run", "-a", "-s", "\"-screen 0 1024x768x24\"", "wkhtmltopdf", "-B", "0", "-L", "0", "-R", "0", "-T", "0", "-O", "Portrait", "-s", "A4", "-dpi", "300", "--disable-smart-shrinking", "-zoom", "1.5", "-q", "http://127.0.0.1:9000/p/public/7caf00fa-b2ae-11e4-b194-d43d7edafecd/poster/pdf.php", "-",]
>>> subprocess.Popen(cmd,stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.STDOUT).communicate()
("Unknown switch -i\n\nName:\n wkhtmltopdf 0.9.6\n\nSynopsis:\n wkhtmltopdf [OPTIONS]... <input file> [More input files] <output file>\n \nDescription:\n Converts one or more HTML pages into a PDF document, using wkhtmltopdf patched\n qt.\n\nGeneral Options:\n -b, --book Set the options one would usually set when printing a book\n --collate Collate when printing multiple copies\n --copies <number> Number of copies to print into the pdf file (default 1)\n --cover <url> Use html document as cover. It will be inserted before the toc with no headers and footers\n -H, --default-header Add a default header, with the name of the page to the left, and the page number to the right, this is short for: --header-left='[webpage]' --header-right='[page]/[toPage]' --top 2cm --header-line\n --extended-help Display more extensive help, detailing less common command switches\n -h, --help Display help\n -O, --orientation <orientation> Set orientation to Landscape or Portrait\n -s, --page-size <size> Set paper size to: A4, Letter, etc.\n --password <password> HTTP Authentication password\n -p, --proxy <proxy> Use a proxy\n -q, --quiet Be less verbose\n -t, --toc Insert a table of content in the beginning of the document\n --username <username> HTTP Authentication username\n -V, --version Output version information an exit\nContact:\n If you experience bugs or want to request new features please visit \n <http://code.google.com/p/wkhtmltopdf/issues/list>, if you have any problems\n or comments please feel free to contact me: see \n <http://www.madalgo.au.dk/~jakobt/#about>\n\n\n\n\n\n\n\n\n\n\n\n\n\n", None)
相关问题似乎是 "Unknown switch -i"，但是如您所见，命令中的任何地方都没有 '-i' 标志。
此外，当从命令行 运行 时，该命令工作正常：
~$ xvfb-run -a -s "-screen 0 1024x768x24" wkhtmltopdf -B 0 -L 0 -R 0 -T 0 -O Portrait -s A4 --dpi 300 --disable-smart-shrinking --zoom 1.5 -q http://127.0.0.1:9000/p/public/7caf00fa-b2ae-11e4-b194-d43d7edafecd/poster/pdf.php -
%PDF-1.4
1 0 obj
<<
/Title (??Planted baskets)
/Producer (wkhtmltopdf)
/CreationDate (D:20150219165915)
>>
endobj
4 0 obj
<<
/Type /ExtGState
/SA true
.... etc (this is the pdf output I want)
知道出了什么问题吗？
问题是你的参数列表中有 "-dpi"，它应该是 "--dpi"，与 --zoom 相同的问题。
您还应该从列表中删除 "bash"，并将 "\"-screen 0 1024x768x24\"" 更改为 "-screen 0 1024x768x24"。
你也可以试试shlex.split:
In [6]: shlex.split("xvfb-run -a -s '-screen 0 1024x768x24' wkhtmltopdf -B 0 -L 0 -R 0 -T 0 -O Portrait -s A4 --dpi 300 --disable-smart-shrinking --zoom 1.5 -q http://127.0.0.1:9000/p/public/7caf00fa-b2ae-11e4-b194-d43d7edafecd/poster/pdf.php -")
Out[6]: ['xvfb-run', '-a', '-s', '-screen 0 1024x768x24', 'wkhtmltopdf', '-B', '0', '-L', '0', '-R', '0', '-T', '0', '-O', 'Portrait', '-s', 'A4', '--dpi', '300', '--disable-smart-shrinking', '--zoom', '1.5', '-q', 'http://127.0.0.1:9000/p/public/7caf00fa-b2ae-11e4-b194-d43d7edafecd/poster/pdf.php', '-']