机械化：首先形式工作，然后“未知的GET表单编码类型”utf-8“ [英] mechanize: first form works, then "unknown GET form encoding type 'utf-8'"

问题描述

我正在从EUR-Lex网站填写2份表格，以便从生成的网页上记录一些数据。
我被困在表格＃2。我感觉这应该很简单，我已经研究了一点，但没有运气。

I am trying to fill out 2 forms from the EUR-Lex website in order to record some data from the generated webpage. I am stuck at form #2. I get the feeling this should be easy and I've researched a bit, but no luck.

import mechanize

froot = '...'
f = open(froot + 'text.html', 'w')

br = mechanize.Browser()
br.open('http://eur-lex.europa.eu/RECH_legislation.do')
br.select_form(name='form2')
br['T1'] = ['V112']
br['T3'] = ['V2']
br['T2'] = ['V1']

first_page = br.submit()
f.write(first_page.get_data())

直到这里似乎都有效，因为我得到保存到文件的正确页面的源。但是...然后...

up until here everything seems to work, because I get the source of the correct page saved to the file. But then...

br.select_form(name='form2')
br['typedate'] = ['PD']

br['startaaaa'] = '1960'
br['startmm'] = '01'
br['startjj'] = '01'
br['endaaaa'] = '1960'
br['endmm'] = '12'
br['startjj'] = '31'

next = br.submit()

这里一切都停止了：

ValueError: unknown GET form encoding type 'utf-8'

在选择第一个和第二个表单之前，我选中了 br.enctype 。我得到的是：

I checked br.enctype before selecting the first and second forms. What I get is:

• 第一个表单后： application / x-www-form-urlencoded


• 第二种形式： utf-8

• after the first form: application/x-www-form-urlencoded
• after the second form: utf-8

我不知道这里发生了什么。

I don't know what is going on here.

推荐答案

问题：

在更改源代码后，我重新安装了机械化

I re-installed mechanize after changing the source

第3233行 _form.py ：

if (self.enctype != "application/x-www-form-urlencoded") and (self.enctype != "utf-8"):

错了，只能处理我的情况。
，但在我的具体情况下它的工作。

it's probably very wrong and can only probably handle my case. but in my specific case it works.

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