I had found following problem as I install packages of python on macOS Monterey(12.1) by using a third party script: zipfile = ZipFile(StringIO(fp.read())) .pyenv/versions/2.7.18/lib/python2.7/socket.py", line 355, in read data = self._sock.recv(rbufsize) .pyenv/versions/2.7.18/lib/python2.7/ssl.py", line 754, in recv return self.read(buflen) .pyenv/versions/2.7.18/lib/python2.7/ssl.py", line 641, in read v = self._sslobj.read(len) ssl.SSLError: [SSL: KRB5_S_TKT_NYV] unexpected eof while reading (_ssl.c:1946) Briefly analysis for root-cause about this problem This is because macOS upgrade openssl to version 3.0.0