- Python Tutorial: Using Try/Except Blocks for Error Handling

Python Tutorial: Using Try/Except Blocks for Error Handling

We've all run into errors and exceptions while writing Python programs. In this video, we will learn how we can handle exceptions in specific ways and also look at the control flow of a try/except/else/finally statement. Understanding how to properly handle errors will provide us with the tools t...
We've all run into errors and exceptions while writing Python programs. In this video, we will learn how we can handle exceptions in specific ways and also look at the control flow of a try/except/else/finally statement. Understanding how to properly handle errors will provide us with the tools to make better software in the future. Let's get started.

The code from this video can be found at:
https://github.com/CoreyMSchafer/code_snippets/tree/master/Exceptions


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Hi, I have problem.  That line var = bad_var () I think Python ignore so there isn't unhandled exception. I have Python 3.7. So maybe in this version is not possible to have multiple codes in one Try: block. I look forward your help Correy or someone else. Best regards - Python Tutorial: Using Try/Except Blocks for Error Handling

Hi, I have problem. That line var = bad_var () I think Python ignore so there isn't unhandled exception. I have Python 3.7. So maybe in this version is not possible to have multiple codes in one Try: block. I look forward your help Correy or someone else. Best regards

Python Tutorial: Using Try/Except Blocks for Error Handling
2015年11月14日 
00:03:17 - 00:10:34
"...now we can see that we get regular Python traceback, which is a good thing..." Why is that a good thing, wasn't the purpose of except to hide that traceback (or built-in python exception) from the user and to display some custom print message? - Python Tutorial: Using Try/Except Blocks for Error Handling

"...now we can see that we get regular Python traceback, which is a good thing..." Why is that a good thing, wasn't the purpose of except to hide that traceback (or built-in python exception) from the user and to display some custom print message?

Python Tutorial: Using Try/Except Blocks for Error Handling
2015年11月14日 
00:03:45 - 00:10:34
Corey I have serious question for around . I am typing up same exact code you are: - Python Tutorial: Using Try/Except Blocks for Error Handling

Corey I have serious question for around . I am typing up same exact code you are:

Python Tutorial: Using Try/Except Blocks for Error Handling
2015年11月14日 
00:04:33 - 00:10:34
if the file is not found, why does this execute the second error code and not the first one? The first exception is FileNotFoundError, so why is that not executed? - Python Tutorial: Using Try/Except Blocks for Error Handling

if the file is not found, why does this execute the second error code and not the first one? The first exception is FileNotFoundError, so why is that not executed?

Python Tutorial: Using Try/Except Blocks for Error Handling
2015年11月14日 
00:05:32 - 00:10:34
@ min   what do you mean by make sure you close down the DB? - Python Tutorial: Using Try/Except Blocks for Error Handling

@ min what do you mean by make sure you close down the DB?

Python Tutorial: Using Try/Except Blocks for Error Handling
2015年11月14日 
00:08:25 - 00:10:34
@ I think its not working any more in Python 3. Instead of getting to the "Exception" block it prints from the "FileNotFoundError" block. Unless you move the "Exception" block above the "FNFR" block the same message gets printed. - Python Tutorial: Using Try/Except Blocks for Error Handling

@ I think its not working any more in Python 3. Instead of getting to the "Exception" block it prints from the "FileNotFoundError" block. Unless you move the "Exception" block above the "FNFR" block the same message gets printed.

Python Tutorial: Using Try/Except Blocks for Error Handling
2015年11月14日 
00:09:45 - 00:10:34
* why doesn't it print Error! instead of Currupt File! ? - Python Tutorial: Using Try/Except Blocks for Error Handling

* why doesn't it print Error! instead of Currupt File! ?

Python Tutorial: Using Try/Except Blocks for Error Handling
2015年11月14日 
00:10:09 - 00:10:34

Corey Schafer

※本サイトに掲載されているチャンネル情報や動画情報はYouTube公式のAPIを使って取得・表示しています。

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動画数:236件

how to override existing environment variables. (This is new to me) - Python Tutorial: Securely Manage Passwords and API Keys with DotEnv

how to override existing environment variables. (This is new to me)

Python Tutorial: Securely Manage Passwords and API Keys with DotEnv
2024年04月18日  @JorgeEscobarMX 様 
00:10:42 - 00:16:58
the future spoken is my current present. Unless I'm completely desperate, I'm not hitting reddit or google/stack overflow for most roadblocks. - How to Use ChatGPT as a Powerful Tool for Programming

the future spoken is my current present. Unless I'm completely desperate, I'm not hitting reddit or google/stack overflow for most roadblocks.

How to Use ChatGPT as a Powerful Tool for Programming
2023年05月22日  o k t o b e r 様 
00:12:22 - 00:31:08
Good video as always😉  I remember asking that too lol - How to Use ChatGPT as a Powerful Tool for Programming

Good video as always😉 I remember asking that too lol

How to Use ChatGPT as a Powerful Tool for Programming
2023年05月22日  kami 様 
00:28:19 - 00:31:08
@ - pure gold, pure gold! <3 - How to Use ChatGPT as a Powerful Tool for Programming

@ - pure gold, pure gold! <3

How to Use ChatGPT as a Powerful Tool for Programming
2023年05月22日  ulf gjerdingen 様 
00:28:26 - 00:31:08
You almost had me there haha! ChatGPT can be wrong but it certainly wasn't wrong about those top notch resources! I massively appreciate all the uploads and I hope they keep coming supercharged with Chat GPT. Thanks to you, sentdex, techwithtim and Dennis Ivy I now know how to properly code on python, use git for version control and build a functional website. - How to Use ChatGPT as a Powerful Tool for Programming

You almost had me there haha! ChatGPT can be wrong but it certainly wasn't wrong about those top notch resources! I massively appreciate all the uploads and I hope they keep coming supercharged with Chat GPT. Thanks to you, sentdex, techwithtim and Dennis Ivy I now know how to properly code on python, use git for version control and build a functional website.

How to Use ChatGPT as a Powerful Tool for Programming
2023年05月22日  Uj Vag 様 
00:28:42 - 00:31:08
and it's  am here (south east asia), and idk why I'm watching a python tutorial rather than sleeping 😂 - Python Tutorial: Simulate the Powerball Lottery Using Python

and it's am here (south east asia), and idk why I'm watching a python tutorial rather than sleeping 😂

Python Tutorial: Simulate the Powerball Lottery Using Python
2023年01月10日  X 様 
00:02:49 - 00:38:56
… nice… 😂 - Python Tutorial: Simulate the Powerball Lottery Using Python

… nice… 😂

Python Tutorial: Simulate the Powerball Lottery Using Python
2023年01月10日  Bartosz Turkowyd 様 
00:04:50 - 00:38:56
I've seen every Python video you've made....   first innuendo. 😜 - Python Tutorial: Simulate the Powerball Lottery Using Python

I've seen every Python video you've made.... first innuendo. 😜

Python Tutorial: Simulate the Powerball Lottery Using Python
2023年01月10日  Martin Beaudry 様 
00:04:52 - 00:38:56
Man it's  am in India I am lucky to be the first one to hear your voice god bless you brother and an awesome teacher. - Python Tutorial: Simulate the Powerball Lottery Using Python

Man it's am in India I am lucky to be the first one to hear your voice god bless you brother and an awesome teacher.

Python Tutorial: Simulate the Powerball Lottery Using Python
2023年01月10日  Big Samosa 様 
00:12:15 - 00:38:56
# you can also use the built-in pprint module for pretty printing dictionaries ;) - Python Tutorial: Simulate the Powerball Lottery Using Python

# you can also use the built-in pprint module for pretty printing dictionaries ;)

Python Tutorial: Simulate the Powerball Lottery Using Python
2023年01月10日  Schoenling Wunderbar 様 
00:25:00 - 00:38:56
it would be very interesting to see if there could be a step function where this algorithm can simulate the increases in jackpot winnings. It’s going to be one in 292+ million of a chance that you hit it at all much less multiple times, but the code should be interesting to see. - Python Tutorial: Simulate the Powerball Lottery Using Python

it would be very interesting to see if there could be a step function where this algorithm can simulate the increases in jackpot winnings. It’s going to be one in 292+ million of a chance that you hit it at all much less multiple times, but the code should be interesting to see.

Python Tutorial: Simulate the Powerball Lottery Using Python
2023年01月10日  20 80 様 
00:27:43 - 00:38:56
A OAuth Django video would be awesome!(Applicable to all sorts of OAuth situations, not just the YouTube API.) - Python YouTube API Tutorial: Using OAuth to Access User Accounts

A OAuth Django video would be awesome!(Applicable to all sorts of OAuth situations, not just the YouTube API.)

Python YouTube API Tutorial: Using OAuth to Access User Accounts
2020年09月10日 
00:07:58 - 00:43:21
At  you move the file and see some blurred miniature version of your open folders in the dock. How did you enable that? - Python YouTube API Tutorial: Using OAuth to Access User Accounts

At you move the file and see some blurred miniature version of your open folders in the dock. How did you enable that?

Python YouTube API Tutorial: Using OAuth to Access User Accounts
2020年09月10日 
00:09:58 - 00:43:21
In case you are getting Error 403 ("access_denied The developer hasn’t given you access to this app") go to the OAuth consent screen and under Test Users add your email by clicking on Add Users.  You should be able to grant access after you've added User. - Python YouTube API Tutorial: Using OAuth to Access User Accounts

In case you are getting Error 403 ("access_denied The developer hasn’t given you access to this app") go to the OAuth consent screen and under Test Users add your email by clicking on Add Users. You should be able to grant access after you've added User.

Python YouTube API Tutorial: Using OAuth to Access User Accounts
2020年09月10日 
00:19:36 - 00:43:21
@corey  So why did you add the join function here, when appending the video id to the list its already a list and its working for me when I pass the vid_ids directly - Python YouTube API Tutorial: Calculating the Duration of a Playlist

@corey So why did you add the join function here, when appending the video id to the list its already a list and its working for me when I pass the vid_ids directly

Python YouTube API Tutorial: Calculating the Duration of a Playlist
2020年06月11日 
00:11:24 - 00:37:38
TypeError: expected string or bytes-like object, I am taking this error in , any idea? - Python YouTube API Tutorial: Calculating the Duration of a Playlist

TypeError: expected string or bytes-like object, I am taking this error in , any idea?

Python YouTube API Tutorial: Calculating the Duration of a Playlist
2020年06月11日 
00:18:50 - 00:37:38
(I love that "Whoops that went too well"-moment at  :D) - Python Tutorial: Real World Example - Using Patreon API and Pillow to Automate Image Creation

(I love that "Whoops that went too well"-moment at :D)

Python Tutorial: Real World Example - Using Patreon API and Pillow to Automate Image Creation
2020年05月11日 
00:35:19 - 00:52:33