Question

我正尝试将我的网络抓取程序从使用请求库移至请求-html库，以允许我在网页上呈现javascript。在导入模块时会引发此错误：

Traceback (most recent call last):
  File "backend2.py", line 2, in <module>
    import requests_html
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/requests_html.py", line 9, in <module>
    import pyppeteer
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pyppeteer/__init__.py", line 30, in <module>
    from pyppeteer.launcher import connect, launch, executablePath  # noqa: E402
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pyppeteer/launcher.py", line 24, in <module>
    from pyppeteer.browser import Browser
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pyppeteer/browser.py", line 15, in <module>
    from pyppeteer.page import Page
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pyppeteer/page.py", line 20, in <module>
    from pyppeteer.coverage import Coverage
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pyppeteer/coverage.py", line 15, in <module>
    from pyppeteer.util import merge_dict
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pyppeteer/util.py", line 10, in <module>
    from pyppeteer.chromium_downloader import check_chromium, chromium_executable
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pyppeteer/chromium_downloader.py", line 15, in <module>
    from tqdm import tqdm
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/tqdm/__init__.py", line 1, in <module>
    from ._tqdm import tqdm
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/tqdm/_tqdm.py", line 75, in <module>
    mp_lock = mp.RLock()  # multiprocessing lock
AttributeError: module 'multiprocessing' has no attribute 'RLock'

感谢您的帮助！

Answer 1

您正在使用Python 3.7，但是request-html的github指出only Python 3.6 is supported（页面底部）。当我尝试使用Python 3.7时，会遇到各种可怕的错误，但3.6可以正常工作。因此，我知道这似乎很奇怪，但是请尝试使用3.6

即使如此，如@georgexsh所述，在3.7中仍应有一个RLock可从multiprocessing导入，因此看起来您的错误实际上可能是您的一个代码文件称为{ {1}}，或者您有自己的名为multiprocessing.py的软件包（因此，您正在导入该软件包而不是所需的模块）。

Python request-html引发多重处理错误

1 个答案: