我已经学习了几个教程,但是我无法使这段代码运行起来,我已经从StringIO更改为BytesIO(我认为是这样的)
我不确定为什么'banana'没有输出任何内容,我认为错误可能是误导性的,这是否与我追随Python2.7教程并尝试将其翻译成Python3有关?
errors: File "/Users/foo/PycharmProjects/Try/Pdfminer.py", line 28, in <module>
banana = convert("A1.pdf")
File "/Users/foo/PycharmProjects/Try/Pdfminer.py", line 19, in convert
infile = file(fname, 'rb')
NameError: name 'file' is not defined
脚本
from io import BytesIO
from pdfminer.pdfinterp import PDFResourceManager, PDFPageInterpreter
from pdfminer.converter import TextConverter
from pdfminer.layout import LAParams
from pdfminer.pdfpage import PDFPage
def convert(fname, pages=None):
if not pages:
pagenums = set()
else:
pagenums = set(pages)
output = BytesIO()
manager = PDFResourceManager()
converter = TextConverter(manager, output, laparams=LAParams())
interpreter = PDFPageInterpreter(manager, converter)
infile = file(fname, 'rb')
for page in PDFPage.get_pages(infile, pagenums):
interpreter.process_page(page)
infile.close()
converter.close()
text = output.getvalue()
output.close
return text
banana = convert("A1.pdf")
print(banana)
这个变种也会发生同样的事情:
from pdfminer.pdfinterp import PDFResourceManager, PDFPageInterpreter
from pdfminer.converter import TextConverter
from pdfminer.layout import LAParams
from pdfminer.pdfpage import PDFPage
from io import BytesIO
def convert_pdf_to_txt(path):
rsrcmgr = PDFResourceManager()
retstr = BytesIO()
codec = 'utf-8'
laparams = LAParams()
device = TextConverter(rsrcmgr, retstr, codec=codec, laparams=laparams)
fp = file(path, 'rb')
interpreter = PDFPageInterpreter(rsrcmgr, device)
password = ""
maxpages = 0
caching = True
pagenos=set()
for page in PDFPage.get_pages(fp, pagenos, maxpages=maxpages, password=password,caching=caching, check_extractable=True):
interpreter.process_page(page)
text = retstr.getvalue()
fp.close()
device.close()
retstr.close()
return text
Banana = convert_pdf_to_txt("A1.pdf")
print(Banana)
我已经尝试搜索此内容(pdfminer的大部分代码源自此处或此处),但没有成功。欢迎提供任何见解。
谢谢。
file()
被open()
替换。请参见下面的答案:https://dev59.com/BVkS5IYBdhLWcg3wcGaW#69962200 - Pieter