how do get response of "GET / " request which is passed using popen communicate with underlying openssl - get

Question

I'm newbie to subprocess module - I would like to use openssl commands to connect with secure server url(for eg : wikipedia) in this case, I could able to connect with web-server and handshake is success.
But while requesting for GET / or HEAD request, i'm unable to receive or process the output.
Obtained output :
SSL handshake has read 3708 bytes and written 405 bytes
Verification: OK
New, TLSv1.3, Cipher is TLS_AES_256_GCM_SHA384
Server public key is 256 bit
Secure Renegotiation IS NOT supported
Compression: NONE
Expansion: NONE
No ALPN negotiated
Early data was not sent
Verify return code: 0 (ok)
import time
import subprocess
cmd ="C:\\cygwin64\\bin\\openssl.exe s_client -connect wikipedia.org:443"
popen = subprocess.Popen(cmd,stdin=subprocess.PIPE,universal_newlines=True,stdout=subprocess.PIPE,,stderr=subprocess.PIPE)
input1 = "echo -en HEAD / HTTP/1.1\r\nHost: www.wikipedia.org\r\n\r\n"
(test_stdout,test_stderr)= popen.communicate(input=input1)
popen.wait()
print(test_stdout)
print(f"return value of popen %r "% popen.returncode)
popen.terminate()
Updated code with openssl -quiet or -ign_eof:
cmd1 ="C:\\cygwin64\\bin\\openssl.exe s_client -connect www.wikipedia.org:443 -servername www.wikipedia.org -ign_eof"
popen = subprocess.Popen(cmd3,stdin=subprocess.PIPE,universal_newlines=True,stdout=subprocess.PIPE,stderr=subprocess.PIPE)
input1 ="echo HEAD / HTTP /1.1\r\nHost: www.wikipedia.org\r\n"
print(input1)
(test_stdout,test_stderr)= popen.communicate(input=input1)
print("value of popen")
print(test_stdout)
print(f"return value of popen %r "% popen.returncode)
popen.terminate()
Please find different results :
1/ Left - results of Py charm
2/ Right - results of executing in openssl s_client command

Answer 1

As far as I can tell, the script is ok and does what it is supposed to do:
It gives you the server ciphers and TLS config.
But judging by your text, what you want to do is something different:
You want to send some HTTP requests and display their responses.
In order to do that, you will have to replace your cmd with some curl https://www.wikipedia.org or wget -O- https://www.wikipedia.org and feed that into your subprocess.Popen command, instead of the openssl cmd.