我正在创建一个程序，该程序将根据内容在特定目录中重命名一系列PDF文件。我已经将内容提取到一个字符串中，但是os.rename（）无法更改名称，因为文件已经打开。我找到了a nearly identical solution，但我还不能正确实现它。我感觉我离完美的功能已经很近了，但我不知道该把load_pdf.close（）放在哪里，也不知道是否需要换一种说法，无论放在哪里，要么抛出相同的错误，要么抛出其他错误，从而导致一定的失败。

import PyPDF2
import os

for file_name in os.listdir('upload_12.5.22_test'):
    load_pdf = open('C:/Users/Jake/Documents/upload_12.5.22_test/'+file_name,'rb')
    read_pdf = PyPDF2.PdfFileReader(load_pdf)
    page_count = read_pdf.getNumPages()
    data_page = read_pdf.getPage(0)
    page_content = data_page.extractText()
    page_content = page_content.replace('\n','')
    page_content = page_content.split('reports.')
    del page_content[0:1]
    p_c_str = ''.join(page_content)
    p_c_str = p_c_str.strip()
    p_c_str = p_c_str[:-6]
    p_c_str = p_c_str + " agreement"
    load_pdf.close()
    os.rename('C:/Users/Jake/Documents/upload_12.5.22_test/'+file_name, 'C:/Users/Jake/Documents/upload_12.5.22_test/'+p_c_str+".pdf")

错误：

Traceback (most recent call last):
  File "C:\Users\Jake\Documents\progam1.py", line 30, in <module>
    os.rename('C:/Users/Jake/Documents/upload_12.5.22_test/'+file_name, 'C:/Users/Jake/Documents/upload_12.5.22_test/'+p_c_str+".pdf")
PermissionError: [WinError 32] The process cannot access the file because it is being used by another process: 'C:/Users/Jake/Documents/upload_12.5.22_test/First M Last agreement.pdf' -> 'C:/Users/Jake/Documents/upload_12.5.22_test/First Last agreement.pdf'
[Finished in 456ms]

**UPDATE：**我找到了this solution，它似乎解决了这个问题。所以，我不正确地调用了os.rename（），并试图更改活动文件目录。所以，我已经将所有内容移到了一个目录中，以消除链接到直接源代码时出现的任何错误，但它仍然抛出完全相同的错误，所以我回到了开始的地方。

import PyPDF2
import os

for file_name in os.listdir():
    load_pdf = open(file_name,'rb')
    read_pdf = PyPDF2.PdfFileReader(load_pdf)
    page_count = read_pdf.getNumPages()
    data_page = read_pdf.getPage(0)
    page_content = data_page.extractText()
    page_content = page_content.replace('\n','')
    page_content = page_content.split('reports.')
    del page_content[0:1]
    p_c_str = ''.join(page_content)
    p_c_str = p_c_str.strip()
    p_c_str = p_c_str[:-6]
    p_c_str = p_c_str + " agreement"
    load_pdf.close()
    os.rename(file_name, p_c_str+".pdf")

错误：

Traceback (most recent call last):
  File "C:\Users\Jake\Documents\Work Projects\Python\Contract Extraction\upload_12.5.22_test\contract_extraction_testing_2.py", line 28, in <module>
    os.rename(file_name, p_c_str+".pdf")
PermissionError: [WinError 32] The process cannot access the file because it is being used by another process: 'Alan R Diaz agreement.pdf' -> 'Alan Diaz agreement.pdf'
[Finished in 205ms]