所以,这是我制作的一个文件(flaskblog.py):
from flask import Flask
app = Flask(__name__)
@app.route("/")
def hello():
return "<h1>Home Page</h1>"
这是我第一次运行它的方式:
$ export FLASK_APP=flaskblog.py
$ flask run
这是我在调试模式下运行它的方法:
$ export FLASK_APP=flaskblog.py
$ export FLASK_DEBUG=1
$ flask run
现在我想直接使用 python 运行该应用程序。我首先更新了.py文件:
from flask import Flask
app = Flask(__name__)
@app.route("/")
def hello():
return "<h1>Home Page</h1>"
if __name__ == "__main__":
app.run()
这是我用来运行 python 文件的命令:
$ python3 flaskblog.py
效果很好。现在我想在调试模式下运行应用程序。所以,我更新了文件:
from flask import Flask
app = Flask(__name__)
@app.route("/")
def hello():
return "<h1>Home Page</h1>"
if __name__ == "__main__":
app.run(debug=True) #Added ("debug=True") here
用于运行该文件的命令:
$ python3 flaskblog.py
这是错误:
* Serving Flask app "flaskblog" (lazy loading)
* Environment: production
WARNING: Do not use the development server in a production environment.
Use a production WSGI server instead.
* Debug mode: on
* Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)
* Restarting with stat
Traceback (most recent call last):
File "flaskblog.py", line 9, in <module>
app.run(debug=True)
File "/usr/local/lib/python3.6/dist-packages/flask/app.py", line 943, in run
run_simple(host, port, self, **options)
File "/usr/local/lib/python3.6/dist-packages/werkzeug/serving.py", line 988, in run_simple
run_with_reloader(inner, extra_files, reloader_interval, reloader_type)
File "/usr/local/lib/python3.6/dist-packages/werkzeug/_reloader.py", line 332, in run_with_reloader
sys.exit(reloader.restart_with_reloader())
File "/usr/local/lib/python3.6/dist-packages/werkzeug/_reloader.py", line 176, in restart_with_reloader
exit_code = subprocess.call(args, env=new_environ, close_fds=False)
File "/usr/lib/python3.6/subprocess.py", line 267, in call
with Popen(*popenargs, **kwargs) as p:
File "/usr/lib/python3.6/subprocess.py", line 709, in __init__
restore_signals, start_new_session)
File "/usr/lib/python3.6/subprocess.py", line 1344, in _execute_child
raise child_exception_type(errno_num, err_msg, err_filename)
OSError: [Errno 8] Exec format error: '/XXX/XXX/XXX/XXX/XXX/XXX/XXX/XXX/Flask_Blog/flaskblog.py'
我只是使用“XXX”而不是实际的目录。任何帮助将不胜感激!
PS:所有代码均来自该视频: