SyntaxError: Invalid syntax in virtual environment

Question

(Environment) root@PE-LT8207:/home/nxp/Documents/helios_fw_utest/utest# /home/nxp/Documents/Environment/bin/pytest --bench bench_mlan.yml -k test_setChannel /home/nxp/Documents/helios_fw_utest/utest/tests_wlan/sanity/
Traceback (most recent call last):
  File "/home/nxp/Documents/Environment/bin/pytest", line 7, in <module>
    from pytest import console_main
  File "/home/nxp/Documents/Environment/lib/python3.5/site-packages/pytest/__init__.py", line 171
    raise AttributeError(f"module {__name__} has no attribute {name}")
                                                                    ^
SyntaxError: invalid syntax