Home » HarvardX CS50: Finance – Part 1 c$50 finance

HarvardX CS50: Finance – Part 1 c$50 finance

by haisanPHANTHIET

In this video, you can see an example solution of the registration page of C$50 Finance from Week 9 at HarvardX.

For private mentoring:

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00:00 – Understanding
3:30 – Solution
14:53 – Testing

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HarvardX CS50: Finance - Part 1

HarvardX CS50: Finance – Part 1

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HarvardX CS50: Finance – Part 1
c$50 finance
You can see a lot of useful information here: see more here
You can see a lot of useful information here: see more here

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Winnie Ip 07/12/2021 - 2:55 Sáng

Thanks for ur clear demo. Pls elaborate on the purposes of the try-except codes, when they are to apply. Thanks

0172_Luket 07/12/2021 - 2:55 Sáng

I still did not understand how you solved redundancy of username usinging "try , except" . Does it look through the database if the username is already taken?

Hamad Al3thbi 07/12/2021 - 2:55 Sáng

SUBSCRRIBED!!! Great work , but After i follow what you said show me in register button intenal issue again i dont know why

pls help

Lara 07/12/2021 - 2:55 Sáng

Can someone help with with this error: 
exception raised in application: TemplateSyntaxError: unexpected char '&' at 614

Sampriti ! 07/12/2021 - 2:55 Sáng

Hey, OMG the "try except" thing worked! I was stuck here for hours trying other methods to check for duplicate username. It always returned an internal server error. Thank you!

Avathar Behemoth 07/12/2021 - 2:55 Sáng

you didnt check the database for the addition of a user.

Sam sagar 07/12/2021 - 2:55 Sáng

It's not working out when ever I am reloding that register page it's shows error in application and it happened twice to me

Sarp Sonmez 07/12/2021 - 2:55 Sáng

Thanks for the video it was really helpful. However, I get the following error after running the code with check50: 🙁 logging in as registered user succeeds excepted status code 200, but got 400. I not know what causes this error since I could log into the registered user while I was testing the code myself. I have written the same code that you have shown in this video after trying to solve this issue on my code. I would be really glad if you could look into this issue. Thanks. (16:32 contains the same error message)

orguitar1 07/12/2021 - 2:55 Sáng

Very clear and easy to follow, thanks!

Simon Kamau 07/12/2021 - 2:55 Sáng

despite the video being so detailed, i love how you keep your codes simple.

Ramani S 07/12/2021 - 2:55 Sáng

Thankyou so much for your vedios

East ofWest 07/12/2021 - 2:55 Sáng

Hello thank you for your explanation but still i have some problems about understanding code.Could you share your code with us please? If you couldn't you can send code to my email. Dont worry i have already finished my CS50 course im not gonna share your code.Thanks 🙂

M. T 07/12/2021 - 2:55 Sáng

Great explanation. I actually do alittle bit different to what you do in the process of checking for username but your code is much more better. Thanks

Luis Briones 07/12/2021 - 2:55 Sáng


Geo Granda 07/12/2021 - 2:55 Sáng

Thank you for all your videos, they have been super helpful. I have been working on finance for a month now and I cannot figure it out. I keep getting this error and I am not even sure what part of the code is off 🙁 any suggestions would be greatly appreciated!

🙁 logging in as registered user succceeds


application raised an exception (see the log for more details)


sending POST request to /login

exception raised in application: RuntimeError: near "transaction": syntax error


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