Amazonlinunx2: RESP3 Returns List in Python 3.7

[rafie]

redis-py: 5.0.0b3
redis: 7.2-rc1
python: 3.7
platform: Linux (amazonlinux:2 has native Python 3.7, but Python 3.7 from pyenv on any Linux will do)

How to reproduce:

git clone --recursive https://github.com/RedisBloom/RedisBloom.git
docker run -it -v $PWD/RedisBloom:/bloom amazonlinux:2 bash

In docker:

cd /bloom
./deps/readies/bin/getpy3
./sbin/system-setup.py
bash -l
./deps/readies/bin/getredis -v 7
make
make flow-tests TEST=test_resp3 GEN=1 AOF=0 SLAVES=0 CLUSTER=0 VERBOSE=1

To debug, place BB() in tests/flow/test_resp3.py (before line 32) and invoke:

make flow-tests TEST=test_resp3 GEN=1 AOF=0 SLAVES=0 CLUSTER=0 VERBOSE=1 BB=1

Stack trace:

Traceback (most recent call last):
  File "/root/.local/lib/python3.7/site-packages/RLTest/__main__.py", line 712, in run_jobs
    obj = test.create_instance()
  File "/root/.local/lib/python3.7/site-packages/RLTest/loader.py", line 60, in create_instance
    return self.cls(*args, **kwargs)
  File "/w/rafi_1/RedisBloom/tests/flow/test_resp3.py", line 32, in __init__
    self.env = Env(protocol=3)
  File "/root/.local/lib/python3.7/site-packages/RLTest/env.py", line 244, in __init__
    self.start()
  File "/root/.local/lib/python3.7/site-packages/RLTest/env.py", line 335, in start
    self.envRunner.startEnv(masters, slaves)
  File "/root/.local/lib/python3.7/site-packages/RLTest/redis_std.py", line 320, in startEnv
    self.waitForRedisToStart(con, self.masterProcess)
  File "/root/.local/lib/python3.7/site-packages/RLTest/redis_std.py", line 250, in waitForRedisToStart
    wait_for_conn(con, proc, retries=1000 if self.debugger else 200)
  File "/root/.local/lib/python3.7/site-packages/RLTest/utils.py", line 16, in wait_for_conn
    if conn.execute_command(command) == shouldBe:
  File "/root/.local/lib/python3.7/site-packages/redis/client.py", line 1330, in execute_command
    conn = self.connection or pool.get_connection(command_name, **options)
  File "/root/.local/lib/python3.7/site-packages/redis/connection.py", line 997, in get_connection
    connection.connect()
  File "/root/.local/lib/python3.7/site-packages/redis/connection.py", line 248, in connect
    self.on_connect()
  File "/root/.local/lib/python3.7/site-packages/redis/connection.py", line 310, in on_connect
    response = self.read_response()
  File "/root/.local/lib/python3.7/site-packages/redis/connection.py", line 420, in read_response
    response = self._parser.read_response(disable_decoding=disable_decoding)
  File "/root/.local/lib/python3.7/site-packages/redis/parsers/resp3.py", line 26, in read_response
    disable_decoding=disable_decoding, push_request=push_request
  File "/root/.local/lib/python3.7/site-packages/redis/parsers/resp3.py", line 101, in _read_response
    for _ in range(int(response))
  File "/root/.local/lib/python3.7/site-packages/redis/parsers/resp3.py", line 101, in <dictcomp>
    for _ in range(int(response))
  File "/root/.local/lib/python3.7/site-packages/redis/parsers/resp3.py", line 79, in _read_response
    for _ in range(int(response))
  File "/root/.local/lib/python3.7/site-packages/redis/parsers/resp3.py", line 79, in <listcomp>
    for _ in range(int(response))
  File "/root/.local/lib/python3.7/site-packages/redis/parsers/resp3.py", line 101, in _read_response
    for _ in range(int(response))
  File "/root/.local/lib/python3.7/site-packages/redis/parsers/resp3.py", line 101, in <dictcomp>
    for _ in range(int(response))
TypeError: unhashable type: 'list'

[dvora-h]

Fixed in #2757