Traceback (most recent call last): File "F:\pythonProject\main.py", line 19, in <module> total_page = int(re.search(r'data-totalpage="(\d+)"', html).group(1)) AttributeError: 'NoneType' object has no attribute 'group'解决方法

这个错误通常表示正则表达式没有匹配到任何结果，因此无法使用 `group()` 方法。

你可以在使用 `group()` 方法之前添加一个判断，检查是否成功匹配到了结果。例如：

import requests
import re

url = 'https://jn.lianjia.com/zufang/pg1/#contentList'

headers = {
    'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36 Edge/16.16299'
}

# 获取总页数
response = requests.get(url, headers=headers)
html = response.text
match = re.search(r'data-totalpage="(\d+)"', html)
if match:
    total_page = int(match.group(1))
    print(total_page)
else:
    print('未匹配到结果')

这个示例代码先通过 `re.search()` 方法获取匹配结果，然后判断是否成功匹配到了数据，最后再使用 `group()` 方法提取数据。如果未匹配到结果，则输出提示信息。

相关问题

C:\CX\Python\python.exe D:\Python_File\pythonProject\main.py Traceback (most recent call last): File "D:\Python_File\pythonProject\main.py", line 12, in <module> title_run.font.size = Pt(18) ^^ NameError: name 'Pt' is not defined

这个错误是因为在您的代码中未定义`Pt`。`Pt`是Python-docx库中的一个类，用于设置字体大小。要解决这个问题，您需要在代码的开头添加以下导入语句：

from docx.shared import Pt

这将导入`Pt`类并解决该错误。请确保您已经正确安装并导入了`python-docx`库。

Traceback (most recent call last): File "paddle\fluid\ir.py", line 24, in <module> File "PyInstaller\loader\pyimod02_importers.py", line 352, in exec_module File "paddle\fluid\proto\pass_desc_pb2.py", line 16, in <module> ModuleNotFoundError: No module named 'framework_pb2' During handling of the above exception, another exception occurred: Traceback (most recent call last): File "main.py", line 1, in <module> File "PyInstaller\loader\pyimod02_importers.py", line 352, in exec_module File "index.py", line 7, in <module> File "PyInstaller\loader\pyimod02_importers.py", line 352, in exec_module File "leis\jietuwj.py", line 8, in <module> File "PyInstaller\loader\pyimod02_importers.py", line 352, in exec_module File "paddleocr\__init__.py", line 14, in <module> File "PyInstaller\loader\pyimod02_importers.py", line 352, in exec_module File "paddleocr\paddleocr.py", line 21, in <module> File "PyInstaller\loader\pyimod02_importers.py", line 352, in exec_module File "paddle\__init__.py", line 62, in <module> File "PyInstaller\loader\pyimod02_importers.py", line 352, in exec_module File "paddle\distributed\__init__.py", line 15, in <module> File "PyInstaller\loader\pyimod02_importers.py", line 352, in exec_module File "paddle\distributed\spawn.py", line 24, in <module> File "PyInstaller\loader\pyimod02_importers.py", line 352, in exec_module File "paddle\distributed\utils\launch_utils.py", line 27, in <module> File "PyInstaller\loader\pyimod02_importers.py", line 352, in exec_module File "paddle\distributed\fleet\__init__.py", line 31, in <module> File "PyInstaller\loader\pyimod02_importers.py", line 352, in exec_module File "paddle\distributed\fleet\fleet.py", line 33, in <module> File "PyInstaller\loader\pyimod02_importers.py", line 352, in exec_module File "paddle\fluid\ir.py", line 28, in <module> File "PyInstaller\loader\pyimod02_importers.py", line 352, in exec_module File "paddle\fluid\proto\pass_desc_pb2.py", line 16, in <module> ModuleNotFoundError: No module named 'framework_pb2' [15508] Failed to execute script 'main' due to unhandled exception!

这是一个 Python 的错误，看起来是在使用 PaddlePaddle 框架时出现了问题。可能是因为缺少某个依赖项或环境配置不正确导致的。你可以尝试更新 PaddlePaddle 和相关的依赖项，或者检查你的环境配置是否正确。如果问题仍然存在，请查看错误信息中的文件和行号，以便更好地定位和解决问题。