安装了virtualenv，激活了它，安装了pip的flask，但是，当我尝试运行脚本或查看是否可以识别时，找不到命令。

(project)gabriel@debian:~/project$ pip list
Flask (0.10.1)
itsdangerous (0.24)
Jinja2 (2.7.3)
MarkupSafe (0.23)
pip (1.5.6)
setuptools (5.5.1)
Werkzeug (0.10.4)
(project)gabriel@debian:~/project$ flask
-bash: flask: command not found
(project)gabriel@debian:~/project$ Flask
-bash: Flask: command not found
(project)gabriel@debian:~/project$ </3

还尝试了：

(project)gabriel@debian:~/project$ python -m flask pi.py
/home/gabriel/project/bin/python: No module named flask.__main__; 'flask' is a package and cannot be directly executed
(project)gabriel@debian:~/project$