报错：Ignoring gevent: markers 'python_version >= "3.7"' don't match your environment

完整信息：
Ignoring gevent: markers 'python_version >= "3.7"' don't match your environment
Ignoring greenlet: markers 'python_version >= "3.7"' don't match your environment
Ignoring lxml: markers 'sys_platform != "win32" and python_version >= "3.7"' don't match your environment
Ignoring lxml: markers 'sys_platform == "win32"' don't match your environment
Ignoring Pillow: markers 'python_version >= "3.7"' don't match your environment
Ignoring psutil: markers 'sys_platform == "win32"' don't match your environment
Ignoring psycopg2: markers 'sys_platform == "win32" or python_version >= "3.8"' don't match your environment
Ignoring Werkzeug: markers 'sys_platform == "win32"' don't match your environment
Ignoring pypiwin32: markers 'sys_platform == "win32"' don't match your environment

对应requirements.txt设置：
gevent==1.5.0 ; python_version >= '3.7'
greenlet==0.4.14 ; python_version >= '3.7'
lxml==4.2.3 ; sys_platform != 'win32' and python_version >= '3.7'
lxml ; sys_platform == 'win32'
psycopg2==2.8.3; sys_platform == 'win32' or python_version >= '3.8'
pyldap==2.4.28; sys_platform != 'win32'
Werkzeug==0.16.0 ; sys_platform == 'win32'
pypiwin32 ; sys_platform == 'win32'

这是一种提示信息。

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