[issue36293] Nonblocking read sys.stdin raises error

Change by Martin Panter : -- resolution: -> duplicate ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe:

[issue36293] Nonblocking read sys.stdin raises error

Martin Panter added the comment: I wasn’t sure about closing it, in case Cyker came back with more details. E.g. what was the use case? Were they mislead by the documentation? Do they just think the error should be different, or do they think there should be no error in this case? But I

[issue36293] Nonblocking read sys.stdin raises error

Terry J. Reedy added the comment: Martin, did you mean to close this as a duplicate? -- nosy: +terry.reedy ___ Python tracker ___

[issue36293] Nonblocking read sys.stdin raises error

Martin Panter added the comment: This is the same story as in Issue 35762. Both “sys.stdin” and “subprocess.Popen.stderr” (when universal_newlines=True is enabled) use the TextIOWrapper class, which I don’t think was implemented with non-blocking mode in mind. Issue 24560 is similar, but is

[issue36293] Nonblocking read sys.stdin raises error

New submission from Cyker Way : This piece of code will raise an error: import os import sys os.set_blocking(sys.stdin.fileno(), False) sys.stdin.read() Error: > TypeError: can't concat NoneType to bytes Not sure if this is relevant (for a different version of Python):