問題描述
在Python Machine Learning(2nd) chapter 2 中有
import pandas as pd
df=pd.read_csv('https://archive.ics.uci.edu/ml/machine-learning-databases/iris/iris.data',header=None)
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執行過程中會遇到
ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self signed certificate in certificate chain (_ssl.c:1051)
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原因和解決方案
具體不清楚問題出現在哪裏,但是總體來說就是證書出現了問題,爲了解決這個問題,需要更新證書:
在終端中輸入(OS系統):
sudo /Applications/Python\ 3.7/Install\ Certificates.command
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如果是3.6 的python,裏面的3.7就改爲3.6,執行之後就可以得到
Requirement already up-to-date: certifi in /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages (2018.11.29)
-- removing any existing file or link
-- creating symlink to certifi certificate bundle
-- setting permissions
-- update complete
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然後就可以了
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作者:陳琳楠
來源:CSDN
原文:https://blog.csdn.net/weixin_43415276/article/details/84991929
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