serial problem

[m986883511]

test in linux use py27, run failed. what the serial package version?
please add a requirment.txt

(py27) ubuntu@ubuntu-vm:~$ python serial-web.py
Traceback (most recent call last):
  File "serial-web.py", line 146, in <module>
    com = serial.Serial(USB_PORT)
AttributeError: 'module' object has no attribute 'Serial'
(py27) ubuntu@ubuntu-vm:~$
(py27) ubuntu@ubuntu-vm:~$
(py27) ubuntu@ubuntu-vm:~$ python
Python 2.7.18 |Anaconda, Inc.| (default, Nov 25 2022, 06:27:37)
[GCC 11.2.0] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>>
[3]+  Stopped                 python
(py27) ubuntu@ubuntu-vm:~$
(py27) ubuntu@ubuntu-vm:~$ pip list
DEPRECATION: Python 2.7 will reach the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 won't be maintained after that date. A future version of pip will drop support for Python 2.7. More details about Python 2 support in pip, can be found at https://pip.pypa.io/en/latest/development/release-process/#python-2-support
Package    Version
---------- -------------------
certifi    2020.6.20
future     0.18.3
iso8601    0.1.16
pip        19.3.1
PyYAML     5.4.1
serial     0.0.97
setuptools 44.0.0.post20200106
wheel      0.37.1