python flask import error

Question

I am running the following code

from flask import Flask
app = Flask(__name__)
@app.route("/")
def hello():
    return "Hello World!"
if __name__ == "__main__":
    app.run(host='0.0.0.0', port=80, debug=True)

and getting the following error

Traceback (most recent call last):
  File "test.py", line 1, in <module>
    from flask import Flask
  File "/home/pi/programs/flask.py", line 1, in <module>
    from flask import Flask
ImportError: cannot import name Flask

I have tried installing flask through various methods , but still the problem persists

also, is there any alternative to flask???

Answer 1

I ran into this error because I named the test file as flask.py and tried to run it! It creates namespace conflict with the real flask module!

Delete the local test file that you named flask.py and the respective flask.pyc. Give some other name! This will happen with other modules like socket etc where you are likely to give the same name for the test file as the standard module :-)