TypeError: argument of type 'PSLiteral' is not iterable

Question

我正在尝试使用 pdfform-scraper-script 删除一些隐藏的输入，然后再将其写入 csv 文件。但是我不断收到标题中提到的错误。相关的代码是：

import glob
import os
import sys
import csv
from pdfminer.pdfparser import PDFParser
from pdfminer.pdfdocument import PDFDocument
from pdfminer.pdftypes import resolve1

path = 'C:\Users\Wonen\Downloads\Test'
for filename in glob.glob(os.path.join(path, '*.pdf')):
    fp = open(filename, 'rb')
    #read pdf's
    parser = PDFParser(fp)
    doc = PDFDocument(parser)
    #doc.initialize()    # <<if password is required
    fields = resolve1(doc.catalog['AcroForm'])['Fields']
    row = []
    for i in fields:
        field = resolve1(i)
        name, value = field.get('T'), field.get('V')
        #removing 'hidden enter'
        if value == None:
           print 'ok'
        elif value == NotImplementedError:
            print 'ok'
        elif '\n' in value:    
           value.replace('\n',' ')
        elif '\r' in value:    
           value.replace('\r',' ')
        row.append(value)
    writer.writerow(list(reversed(row)))

完整的错误（+输出）是：
还行
还行

Traceback (most recent call last): File "C:\Python27\Scripts\test3.py", line 37, in elif '\n' in value: TypeError: argument of type 'PSLiteral' is not iterable

有人知道怎么解决吗？

Answer 1

不知道输入文件的内容很难猜。我认为问题是你在调用 field.get('V') 时得到一些非字符串值来解决这个问题我建议你将 value 更改为字符串。像这样尝试：

if value == None:
   print 'ok'
elif value == NotImplementedError:
    print 'ok'
elif '\n' in str(value):
   value = str(value)    
   value.replace('\n',' ')
elif '\r' in str(value):
   value = str(value)    
   value.replace('\r',' ')

TypeError: argument of type 'PSLiteral' is not iterable

TypeError: argument of type 'PSLiteral' is not iterable

python

csv

pdftotext

data-cleaning