TypeError:在使用pisa.Createpdf时，“str”和“int”的操作数类型不受支持

2024-04-25 22:54:48 发布

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import email, sys, os
from xhtml2pdf import pisa

def convertHtmlToPdf(sourceHtml, outputFilename):
    resultFile = open(outputFilename, "wb")
    pisaStatus = pisa.CreatePDF(sourceHtml,resultFile)
    resultFile.close()
    return


#a = <html grabbed from the ingested email>
msg = email.message_from_string(a)
    print(msg.get_payload())

    for part in msg.walk():
        if part.get_content_type():
                body = str(part.get_payload())
                with open('/tmp/emltohtml.html', 'wb') as f:
                    f.write(body)

    #read
    f = open("/tmp/emltohtml.html", "rb")
    sourceHtml = f.read()
    pisa.showLogging()

    outputFilename = "/tmp/test555.pdf"
    pisa.showLogging()
    phantom.debug(type(sourceHtml))
    convertHtmlToPdf(sourceHtml, outputFilename)

这就是我得到的错误：

WARNING [xhtml2pdf] /home/user/.local/lib/python2.7/site-packages/xhtml2pdf/parser.py line 97: Attribute 'align' of wrong value, allowed is one of: ['top', 'middle', 'bottom', 'left', 'right', 'texttop', 'absmiddle', 'absbottom', 'baseline']
u'<a href="https://urldefense.com/v3/__http://etrack.freeconferencecall.com/t/gcH1AAhbaBYSdQAD1mBEMg2Hha3XvJ2KBhaaaa32mBPIHFDxaa?m=8_w8xE0*amp;k=KvVrr.Jahols*25BtvglZhl.jht*amp;e=j*amp;q=__;fn5-fg!!CDV5USbF!dFnF_cam37jt_IHL0zIYmhY5tpZXYU64EfP_nbPsYeojc2eWzyniAoQumbF7P18jnKk$"><img align="center" alt="FreeConferenceCall logo" class="float-center" data-unique-identifier="" src="https://www.freeconferencecall.com/images/email_template/fcc_logo_noshadow.png" style="clear: both; display: block; margin: 0px auto; max-width: 100%; outline: 0px; text-align: center; text-decoration: none;"/></a>'
Traceback (most recent call last):
  File "<stdin>", line 2, in <module>
  File "/home/user/.local/lib/python2.7/site-packages/xhtml2pdf/document.py", line 144, in pisaDocument
    doc.build(context.story)
  File "/home/user/.local/lib/python2.7/site-packages/reportlab/platypus/doctemplate.py", line 1056, in build
    self.handle_flowable(flowables)
  File "/home/user/.local/lib/python2.7/site-packages/reportlab/platypus/doctemplate.py", line 912, in handle_flowable
    if frame.add(f, canv, trySplit=self.allowSplitting):
  File "/home/user/.local/lib/python2.7/site-packages/reportlab/platypus/frames.py", line 174, in _add
    w, h = flowable.wrap(aW, h)
  File "/home/user/.local/lib/python2.7/site-packages/xhtml2pdf/xhtml2pdf_reportlab.py", line 775, in wrap
    return Table.wrap(self, availWidth, availHeight)
  File "/home/user/.local/lib/python2.7/site-packages/reportlab/platypus/tables.py", line 1206, in wrap
    self._calc(availWidth, availHeight)
  File "/home/user/.local/lib/python2.7/site-packages/reportlab/platypus/tables.py", line 657, in _calc
    self._calc_height(availHeight,availWidth,W=W)
  File "/home/user/.local/lib/python2.7/site-packages/reportlab/platypus/tables.py", line 624, in _calc_height
    y = H[i] - c
TypeError: unsupported operand type(s) for -: 'str' and 'int'

但是如果我用其他东西替换html文件，或者只是将普通html存储在一个变量中并进行转换，它就会工作。看起来，保存emltohtml.HTML文件中整个HTML的sourceHtml变量是一个字符串，它应该是字符串，但不喜欢HTML中的某个字符，因此它正在中断

以下是html文件： https://pastebin.com/4CtMDLYJ


Tags： inpyhomelibpackageslocalhtmlline
1条回答
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1楼 · 发布于 2024-04-25 22:54:48

这可能是因为您在样式表中使用了height: x%;reportlab.platypus.tables.Table._calc_height(self, availHeight, availWidth, H=None, W=None)不将x%转换为与可用高度的一部分相对应的数字，并尝试以下操作：

for i in xrange(hmax-1,-1,-1):
    j.append(height)
    y = H[i] - c        # c is '100%', for example, while H[i] is an int, thus the exception.
    t = height + y
    c = (t - height) - y
    height = t

从样式中删除height: x%;可以修复它，这并不好

另一个选项是使用position: absolute;，例如，设置top: 0; bottom: 0;填充100%的高度，但这似乎也不受支持（尽管它不会引发任何异常）

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