Catching a 500 server error in Flask

Question

I love Flask\'s error catching. It\'s beautifully simple:

@app.errorhandler(404)
def pageNotFound(error):
    return \"page not found\"

works

Answer 1

It works fine in my side:

from flask import Flask ,url_for,render_template,request,abort
from  werkzeug.debug import get_current_traceback
app = Flask(__name__)

@app.route('/')
def index():
    try:
        raise Exception("Can't connect to database")
    except Exception,e:
        track= get_current_traceback(skip=1, show_hidden_frames=True,
            ignore_system_exceptions=False)
        track.log()
        abort(500)
    return "index"

@app.errorhandler(500)
def internal_error(error):

    return "500 error"

@app.errorhandler(404)
def not_found(error):
    return "404 error",404

if __name__== "__main__":
    app.run(debug=True)

Flask will not set the error code for you, so make sure to also provide the HTTP status code when returning a response.