TCL prompt matching fails on IOS-XE 17+

[dmfigol]

Describe the bug Regular expression for tclsh on IOS-XE fails to capture the prompt, to be more specific: +>(tcl)#

To Reproduce Steps to reproduce the behavior:

1. Your script

   
   from scrapli import Scrapli
   from scrapli_cfg import ScrapliCfg

with open("config", "r") as f: my_config = f.read()

device = { "host": "192.168.152.101", "auth_username": "cisco", "auth_password": "cisco", "auth_strict_key": False, "platform": "cisco_iosxe" } conn = Scrapli(**device) cfg_conn = ScrapliCfg(conn=conn) cfg_conn.open() load_result = cfg_conn.load_config(config=my_config, replace=True) print(load_result)

2. What you're connecting to (vendor, platform, version)
Cisco IOS-XE 17.3.1
3. Anything else relevant
n/a

**Expected behavior**
Regular expression should be updated, so the script doesn't crash.

**Stack Trace**

Traceback (most recent call last): File "/home/dmfigol/projects/network-programmability-stream/scrapli-apps/.venv/lib/python3.8/site-packages/scrapli/transport/plugins/ssh2/transport.py", line 256, in read _, buf = self.session_channel.read(65535) File "ssh2/channel.pyx", line 116, in ssh2.channel.Channel.read File "ssh2/channel.pyx", line 144, in ssh2.channel.Channel.read_ex File "ssh2/utils.pyx", line 148, in ssh2.utils.handle_error_codes ssh2.exceptions.Timeout

During handling of the above exception, another exception occurred:

Traceback (most recent call last): File "scrapli-cfg.py", line 30, in cfg_conn.load_config(config=rendered_config, replace=True) File "/home/dmfigol/projects/network-programmability-stream/scrapli-apps/.venv/lib/python3.8/site-packages/scrapli_cfg/platform/core/cisco_iosxe/sync_platform.py", line 203, in load_config config_result = self.conn.send_config(config=config, privilege_level="tclsh") File "/home/dmfigol/projects/network-programmability-stream/scrapli-apps/.venv/lib/python3.8/site-packages/scrapli/driver/network/sync_driver.py", line 536, in send_config multi_response = self.send_configs( File "/home/dmfigol/projects/network-programmability-stream/scrapli-apps/.venv/lib/python3.8/site-packages/scrapli/driver/network/sync_driver.py", line 477, in send_configs responses = super().send_commands( File "/home/dmfigol/projects/network-programmability-stream/scrapli-apps/.venv/lib/python3.8/site-packages/scrapli/driver/generic/sync_driver.py", line 208, in send_commands response = self._send_command( File "/home/dmfigol/projects/network-programmability-stream/scrapli-apps/.venv/lib/python3.8/site-packages/scrapli/decorators.py", line 408, in decorate result = wrapped_func(*args, *kwargs) File "/home/dmfigol/projects/network-programmability-stream/scrapli-apps/.venv/lib/python3.8/site-packages/scrapli/driver/generic/sync_driver.py", line 131, in _send_command raw_response, processed_response = self.channel.send_input( File "/home/dmfigol/projects/network-programmability-stream/scrapli-apps/.venv/lib/python3.8/site-packages/scrapli/decorators.py", line 284, in decorate return wrapped_func(args, **kwargs) File "/home/dmfigol/projects/network-programmability-stream/scrapli-apps/.venv/lib/python3.8/site-packages/scrapli/channel/sync_channel.py", line 440, in send_input buf += self._read_until_prompt() File "/home/dmfigol/projects/network-programmability-stream/scrapli-apps/.venv/lib/python3.8/site-packages/scrapli/channel/sync_channel.py", line 131, in _read_until_prompt buf += self.read() File "/home/dmfigol/projects/network-programmability-stream/scrapli-apps/.venv/lib/python3.8/site-packages/scrapli/channel/syncchannel.py", line 68, in read buf = self.transport.read() File "/home/dmfigol/projects/network-programmability-stream/scrapli-apps/.venv/lib/python3.8/site-packages/scrapli/transport/plugins/ssh2/transport.py", line 256, in read , buf = self.session_channel.read(65535) File "/home/dmfigol/projects/network-programmability-stream/scrapli-apps/.venv/lib/python3.8/site-packages/scrapli/decorators.py", line 354, in _signal_raise_exception self._handle_timeout() File "/home/dmfigol/projects/network-programmability-stream/scrapli-apps/.venv/lib/python3.8/site-packages/scrapli/decorators.py", line 311, in _handle_timeout raise ScrapliTimeout(self.message) scrapli.exceptions.ScrapliTimeout: timed out sending input to device

**OS (please complete the following information):**
 - OS: [e.g. Ubuntu, MacOS, etc. - Note scrapli is *not* thoroughly tested on Windows and some/many things will not
  be supported] Ubuntu 20.04
 - scrapli version: 2021.1.30

**Additional context**
Regexp fix: https://regex101.com/r/QdYnNu/1 (also cleaned it up to make it more concise)
`^([\w.\-@\/+>:]+\(tcl\)[>#]|\+>)$`

[carlmontanari]

Thank you for raising this! Just merged your fix to develop, closing!