Solved: NameError: name ‘_name_’ is not defined in docker python program
While learning docker, i encountered below error when i had written python sample program.
Error encountered
$ docker-compose up Creating docker_product-service_1 ... done Attaching to docker_product-service_1 product-service_1 | Traceback (most recent call last): product-service_1 | File "api.py", line 16, in product-service_1 | if _name_ == '_main_': product-service_1 | NameError: name '_name_' is not defined docker_product-service_1 exited with code 1
Solution
To resolve this issue, we need to correct the python script code and put two underscores
instead of one.
### Faulty Program line
if _name_ == '_main_':
app.run(host='0.0.0.0', port=80, debug=True)
### Correct it by adding double underscores below.
### Make sure you make changes in any other part of the program.
if __name__ == '__main__':
app.run(host='0.0.0.0', port=80, debug=True)
After correcting above line when you try to execute the program it should go well.
For example:- In my case, it went well this time.
$ docker-compose up Starting docker_product-service_1 ... done Attaching to docker_product-service_1 product-service_1 | * Running on http://0.0.0.0:80/ (Press CTRL+C to quit) product-service_1 | * Restarting with stat product-service_1 | * Debugger is active! product-service_1 | * Debugger PIN: 304-853-752