📚 Can not realize the example as Readme

Description

Firstly, I run a container by arthursjiang/maro:cpu, and copy the example in readme(Quick Example) with part of Environment Visualization and run it:

from maro.simulator import Env

# Enable environment dump feature, when initializing the environment instance
env = Env(scenario="cim",
          topology="toy.5p_ssddd_l0.0",
          start_tick=0,
          durations=100,
          options={"enable-dump-snapshot": "./dump_data"})

metrics, decision_event, is_done = env.step(None)

while not is_done:
    metrics, decision_event, is_done = env.step(None)

print(f"environment metrics: {env.metrics}")

but it will show me this error log:

---------------------------------------------------------------------------
FileNotFoundError                         Traceback (most recent call last)
<ipython-input-3-2bba340a34d8> in <module>
      1 from maro.simulator import Env
      2 
----> 3 env = Env(scenario="cim", topology="toy.5p_ssddd_l0.0", start_tick=0, durations=100, options={"enable-dump-snapshot": "./dump_data"})
      4 
      5 metrics, decision_event, is_done = env.step(None)

/usr/local/lib/python3.6/site-packages/maro/simulator/core.py in __init__(self, scenario, topology, start_tick, durations, snapshot_resolution, max_snapshots, decision_mode, business_engine_cls, disable_finished_events, options)
     69             parent_path = self._additional_options["enable-dump-snapshot"]
     70             self._converter = DumpConverter(parent_path, self._business_engine._scenario_name)
---> 71             self._converter.reset_folder_path()
     72 
     73     def step(self, action):

/usr/local/lib/python3.6/site-packages/maro/data_lib/dump_csv_converter.py in reset_folder_path(self)
     51 
     52     def reset_folder_path(self):
---> 53         self._generate_new_folder(self._parent_path)
     54         self._serial = 0
     55 

/usr/local/lib/python3.6/site-packages/maro/data_lib/dump_csv_converter.py in _generate_new_folder(self, parent_path)
     36         if folder_path.exists():
     37             return
---> 38         os.mkdir(self._foldername)
     39 
     40     @property

FileNotFoundError: [Errno 2] No such file or directory: './dump_data/snapshot_dump_2021_01_11_03_01_56_834'

I realized this will caused by this file (dump_data) does not in this folder. So, I use FIND script try to find out where the file is. But, the log like this:

shaiic@zy-openpai-marketplace:~/zhangy/maro$ ls
CHANGELOG.md  CITATION  CODE_OF_CONDUCT.md  CONTRIBUTING.md  LICENSE  MANIFEST.in  README.md  SECURITY.md  docker_files  docs  examples  maro  notebooks  playground.md  pyproject.toml  requirements.dev.txt  scripts  setup.py  tests
shaiic@zy-openpai-marketplace:~/zhangy/maro$ find . -name "dump_data.*"
shaiic@zy-openpai-marketplace:~/zhangy/maro$ find . -name "dump_data"

This is my server configuration:

shaiic@zy-openpai-marketplace:~/zhangy/maro$ neofetch 
            .-/+oossssoo+/-.               shaiic@zy-openpai-marketplace 
        `:+ssssssssssssssssss+:`           ----------------------------- 
      -+ssssssssssssssssssyyssss+-         OS: Ubuntu 18.04.5 LTS x86_64 
    .ossssssssssssssssssdMMMNysssso.       Host: Virtual Machine 7.0 
   /ssssssssssshdmmNNmmyNMMMMhssssss/      Kernel: 5.4.0-1031-azure 
  +ssssssssshmydMMMMMMMNddddyssssssss+     Uptime: 68 days, 1 hour, 39 mins 
 /sssssssshNMMMyhhyyyyhmNMMMNhssssssss/    Packages: 640 
.ssssssssdMMMNhsssssssssshNMMMdssssssss.   Shell: bash 4.4.20 
+sssshhhyNMMNyssssssssssssyNMMMysssssss+   Terminal: vscode 
ossyNMMMNyMMhsssssssssssssshmmmhssssssso   CPU: Intel Xeon Platinum 8171M (4) @ 2.095GHz 
ossyNMMMNyMMhsssssssssssssshmmmhssssssso   GPU: Microsoft Corporation Hyper-V virtual VGA 
+sssshhhyNMMNyssssssssssssyNMMMysssssss+   Memory: 753MiB / 15987MiB 
.ssssssssdMMMNhsssssssssshNMMMdssssssss. 
 /sssssssshNMMMyhhyyyyhdNMMMNhssssssss/                            
  +sssssssssdmydMMMMMMMMddddyssssssss+ 
   /ssssssssssshdmNNNNmyNMMMMhssssss/ 
    .ossssssssssssssssssdMMMNysssso. 
      -+sssssssssssssssssyyyssss+- 
        `:+ssssssssssssssssss+:` 
            .-/+oossssoo+/-. 

So, How can I get result like this?

By the way, should I install Maro by resouce code before Or What dependence I need to get before to run script in Readme.md L149?

# Inspect environment with the dump data
maro inspector env --source ./dump_data

[Allen-labs]

@micli Thank you, I’ll try it

[chaosddp]

Close it as it was fixed, feel free to re-open it if there is any problem.