Flask ile server çalıştıramıyorum

Python Flask
1

Flask run komutunu yazdığımda :

(env) PS C:\Users\Yunus\Desktop\clean_blog> flask run

  • Environment: production
    WARNING: This is a development server. Do not use it in a production deployment.
    Use a production WSGI server instead.
  • Debug mode: off
    Traceback (most recent call last):
    File “c:\users\yunus\appdata\local\programs\python\python39\lib\runpy.py”, line 197, in _run_module_as_main
    return _run_code(code, main_globals, None,
    File “c:\users\yunus\appdata\local\programs\python\python39\lib\runpy.py”, line 87, in run_code
    exec(code, run_globals)
    File "C:\Users\Yunus\Desktop\clean_blog\env\Scripts\flask.exe_main    .py", line 7, in
    File “C:\Users\Yunus\Desktop\clean_blog\env\lib\site-packages\flask\cli.py”, line 990, in main
    cli.main(args=sys.argv[1:])
    File “C:\Users\Yunus\Desktop\clean_blog\env\lib\site-packages\flask\cli.py”, line 596, in main
    return super().main(*args, **kwargs)
    File “C:\Users\Yunus\Desktop\clean_blog\env\lib\site-packages\click\core.py”, line 1062, in main
    rv = self.invoke(ctx)
    File “C:\Users\Yunus\Desktop\clean_blog\env\lib\site-packages\click\core.py”, line 1668, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
    File “C:\Users\Yunus\Desktop\clean_blog\env\lib\site-packages\click\core.py”, line 1404, in invoke
    return ctx.invoke(self.callback, **ctx.params)
    File “C:\Users\Yunus\Desktop\clean_blog\env\lib\site-packages\click\core.py”, line 763, in invoke
    return __callback(*args, **kwargs)
    File “C:\Users\Yunus\Desktop\clean_blog\env\lib\site-packages\click\decorators.py”, line 84, in new_func
    return ctx.invoke(f, obj, *args, **kwargs)
    File “C:\Users\Yunus\Desktop\clean_blog\env\lib\site-packages\click\core.py”, line 763, in invoke
    return __callback(*args, **kwargs)
    File “C:\Users\Yunus\Desktop\clean_blog\env\lib\site-packages\flask\cli.py”, line 845, in run_command
    app = DispatchingApp(info.load_app, use_eager_loading=eager_loading)
    File “C:\Users\Yunus\Desktop\clean_blog\env\lib\site-packages\flask\cli.py”, line 321, in init
    self._load_unlocked()
    File “C:\Users\Yunus\Desktop\clean_blog\env\lib\site-packages\flask\cli.py”, line 346, in _load_unlocked
    self._app = rv = self.loader()
    File “C:\Users\Yunus\Desktop\clean_blog\env\lib\site-packages\flask\cli.py”, line 406, in load_app
    app = locate_app(self, import_name, None, raise_if_not_found=False)
    File “C:\Users\Yunus\Desktop\clean_blog\env\lib\site-packages\flask\cli.py”, line 256, in locate_app
    import(module_name)
    File “C:\Users\Yunus\Desktop\clean_blog\app.py”, line 4
    if name ==“main:
    ^
    SyntaxError: invalid character '”’ (U+201D)

böyle bir hata alıyorum neden olabilir

2 
$ export FLASK_APP=example
$ export FLASK_ENV=development
$ flask run

LocalHost ayarını yapmamış olabilirsin kodu yazarken birde onu da yazayım. App’in çalışabileceği bir masa gerekiyor sunulabileceği bir yer.
Kodunu bilmiyorum ama örnekte işaretledim.

from flask import Flask

app = Flask(__name__)

@app.route("/")
def index():
    return "<h1>Hello!</h1>"

if __name__ == "__main__":
    from waitress import serve#DDDDDDDDDDDDDDDDDDDD
    serve(app, host="0.0.0.0", port=8080)#DDDDDDDDDDDDDDDDDDDDDDD

shell üzerinde belirtebilirsin.

from flask import Flask

app = Flask(__name__)

@app.route("/")
def index():
    return "<h1>Hello!</h1>"

def create_app():
   return app

waitress-serve --port=8080 --call hello:create_app

8080 varsayılan port olarak geçer

1 Beğeni
3

hocam verdiğiniz kodları hem shell hem visualstudio da denedim ama olmadı belki de yanlış yere yazdım

4

example kısmına kendi app’ini yazacaksın. Unutmuşum söylemeyi

5

burayı vscode da python terminaline yazıyorum

(env) PS C:\Users\Yunus\Desktop\clean_blog> FLASK_APP=app.py
FLASK_APP=app.py : The term ‘FLASK_APP=app.py’ is not recognized as the name of a cmdlet, function, script file, or operable pr
ogram. Check the spelling of the name, or if a path was included, verify that the path is correct and try again.
At line:1 char:1

  • FLASK_APP=app.py
  •   + CategoryInfo          : ObjectNotFound: (FLASK_APP=app.py:String) [], CommandNotFoundException
  + FullyQualifiedErrorId : CommandNotFoundException

yine böyle bir sorun çıkıyor

6

Python kodun nerede duruyorsa orada yapıcaksın bulamıyor yolu

7
  1. satirda " yerine ” kullanmissin.
3 Beğeni