無法在Python 3.7中導入“ PyPDF2”

Question

我想知道為什么我一生無法導入和使用Python 3.7中的PyPDF2 （PDF庫）。

首先，我的導入失敗在main.py頂部（即下面）

from PyPDF2 import PdfFileReader

然后我嘗試了pip install PyPDF2和變體pip2 install PyPDF3等。

全部導致以下輸出：

  Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self signed certificate in certificate chain (_ssl.c:1051)'))': /simple/pypdf2/
  Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self signed certificate in certificate chain (_ssl.c:1051)'))': /simple/pypdf2/
  Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self signed certificate in certificate chain (_ssl.c:1051)'))': /simple/pypdf2/
  Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self signed certificate in certificate chain (_ssl.c:1051)'))': /simple/pypdf2/
  Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self signed certificate in certificate chain (_ssl.c:1051)'))': /simple/pypdf2/

  Could not find a version that satisfies the requirement PyPDF2 (from versions: )
No matching distribution found for PyPDF2

Answer 1

您可以執行以下操作：

pip install https://pypi.org/project/PyPDF2/1.23/