Fixed incomplete error message (#24)

Fixed incomplete error message in Python2.7 on running `Drop Keyspace` query.

Added `os.path.expanduser` (#22)

Print Timing for all DMLs (#19)

* Print Timing for all DMLs

* Minor change

Updating python driver

Updating python driver (#18)

* Updating python driver

* Updating python driver 2

Fix for "[YCQL] describe keyspace <keyspace_name> throws error #16530"

Fix for "[YCQL] describe keyspace <keyspace_name> throws error #16530"

Merge pull request #17 from yugabyte/Py3.11_module_re_fix

Fix for : "[YCQL] YCQLSH - module 're' has no attribute 'sre_parse' -…

Merge pull request #15 from yugabyte/ycqlsh-timing

TIMING [ON|OFF] Command Added

[DB-3774] cqlsh: Provide option to disable DEBUG command in ycqlsh

Summary:
This diff provides an option to disable the `DEBUG` command which opens a Python debugging session.

To disable the debugging functionality, the `ycqlsh` command be started with option `--disallow_python_debug`. The default value of the flag is False.

Test Plan:
Tried on local machine

```
>> ./ycqlsh
Connected to local cluster at 127.0.0.1:9042.
[ycqlsh 5.0.1 | Cassandra 3.9-SNAPSHOT | CQL spec 3.4.2 | Native protocol v4]
Use HELP for help.
ycqlsh> debug
--Return--
> /Users/stiwary/code/cqlsh/bin/ycqlsh.py(2050)do_debug()->None
-> pdb.set_trace()
(Pdb) exit

ycqlsh> exit

>>./ycqlsh --disallow_python_debug

Connected to local cluster at 127.0.0.1:9042.
[ycqlsh 5.0.1 | Cassandra 3.9-SNAPSHOT | CQL spec 3.4.2 | Native protocol v4]
Use HELP for help.
ycqlsh> debug
*** Python debugger disabled because shell started with --disallow_python_debug
ycqlsh> exit
```

Reviewers: skumar, oleg

Reviewed By: oleg

Subscribers: yql

Differential Revision: https://phabricator.dev.yugabyte.com/D23650