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bpo-41818: Make additions to the tty module #23546

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bpo-41818: Make additions to the tty module #23546

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Soumendra Ganguly: new additions to the tty library. Functions added:…
8vasu Dec 11, 2020
3673a79
Clear all POSIX.1-2017 local mode flags in tty.cfmakeraw().
8vasu Dec 15, 2020
f86a5f8
Remove news file.
8vasu May 6, 2022
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📜🤖 Added by blurb_it.
blurb-it[bot] May 6, 2022
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Clear all POSIX.1-2017 local mode flags in tty.cfmakeraw(). 
Signed-off-by: Soumendra Ganguly <soumendraganguly@gmail.com>
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@8vasu
8vasu committed Dec 15, 2020
commit 3673a79bbcac97b075a4487bfd8f3cf11d02c567
11 changes: 4 additions & 7 deletions Lib/tty.py
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Expand Up @@ -29,19 +29,16 @@ def cfmakeraw(mode):
INLCR | IGNCR | ICRNL | IXON | IXANY | IXOFF)

# Do not post-process output.
mode[OFLAG] &= ~(OPOST)
mode[OFLAG] &= ~OPOST

# Disable parity generation and detection; clear character size mask;
# let character size be 8 bits.
mode[CFLAG] &= ~(PARENB | CSIZE)
mode[CFLAG] |= CS8

# Do not echo characters (including NL); disable canonical input; disable
# the checking of characters against the special control characters INTR,
# QUIT, and SUSP (disable sending of signals using control characters);
# disable any implementation-defined special control characters not
# currently controlled by ICANON, ISIG, IXON, or IXOFF.
mode[LFLAG] &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN)
# Clear all POSIX.1-2017 local mode flags.
mode[LFLAG] &= ~(ECHO | ECHOE | ECHOK | ECHONL | ICANON |
IEXTEN | ISIG | NOFLSH | TOSTOP)

# POSIX.1-2017, 11.1.7 Non-Canonical Mode Input Processing,
# Case B: MIN>0, TIME=0
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