google-app-engine - 在应用引擎中使用报告实验室生成 pdf 的问题

Question

我正在尝试在 appengine 中使用带有 python 的 reportlab 生成 pdf。现在，每当我调用该函数以从 get(self) 函数生成 pdf 时，它都可以正常工作，但是当从 post(self) 调用该函数时，同样的事情不起作用。正如在日志中测试的那样，生成 pdf 的功能在这两种情况下都运行良好。问题似乎出在 pdf 输出中（获取和发布）。我曾尝试将内容处置保留为附件和内联，但无济于事。

这是 generatePdf 的部分代码：

class PDFHandler(BlogHandler):


def get(self):

    self.render("create_offer_letter.html")
    candidate_name = "Siddhant"
    candidate_email ="ssjjs@ksks.com"
    candidate_phone = "939393993"
    address_part   = ['sjsjjs','ksksksks']
    confirmation_date = "22/07/2013"
    coursefee = "282828"
    admissionfee = "8388383"
    institute ="NIMT"
    course ="MBA"
    feeterm ="Trimester"
    #generatePdf(self,candidate_name,candidate_email,candidate_phone,address_part,confirmation_date,coursefee,admissionfee,institute,course, feeterm)
def post(self):   

    self.render("create_offer_letter.html")
    candidate_name = "Siddhant"
    candidate_email ="ssjjs@ksks.com"
    candidate_phone = "939393993"
    address_part   = ['sjsjjs','ksksksks']
    confirmation_date = "22/07/2013"
    coursefee = "282828"
    admissionfee = "8388383"
    institute ="NIMT"
    course ="MBA"
    feeterm ="Trimester"
    generatePdf(self,candidate_name,candidate_email,candidate_phone,address_part,confirmation_date,coursefee,admissionfee,institute,course, feeterm)

我想它必须与http头有关？不过我不确定。