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Remove dependence on telnetlib which was removed from Python 3.13 (#626)

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* Remove dependence on telnetlib which was removed from Python 3.13

Only some constant values were being used so those values were copied
into remote.py instead of being referenced from telnetlib.

* Replace bytes function calls with bytes literals
This commit is contained in:
Will Shanks 2023-12-29 16:05:38 -05:00 committed by GitHub
parent f76189f06d
commit 9f9a6acfc1
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1 changed files with 25 additions and 1 deletions
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pudb/remote.py
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@ -84,6 +84,30 @@ Please specify one using the PUDB_RDB_PORT environment variable.
"""
class TelnetCharacters:
"""Collection of characters from the telnet protocol RFC 854
This format for the telnet characters was adapted from the telnetlib module
which was removed from the C Python standard library in version 3.13. Only
the characters needed by pudb have been copied here. Additional characters
can be found by looking in the telnetlib code in Python 3.12 or in the
telnet RFC.
.. note::
This class is not intended to be instantiated.
"""
# Telnet protocol characters
IAC = b"\xff" # "Interpret As Command"
DO = b"\xfd"
WILL = b"\xfb"
# Telnet protocol options codes
# These ones all come from arpa/telnet.h
ECHO = b"\x01" # echo
SGA = b"\x03" # suppress go ahead
class RemoteDebugger(Debugger):
"""
.. automethod:: __init__
@ -139,7 +163,7 @@ class RemoteDebugger(Debugger):
# nc negotiation doesn't support telnet options
if not reverse:
import telnetlib as tn
tn = TelnetCharacters
raw_sock_file.write(tn.IAC + tn.WILL + tn.SGA)
resp = raw_sock_file.read(3)