Introduction to the Python Debugger

How to get started using the Python Debugger (PDB), an incredibly useful tool which can save you hours when writing Python applications.

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[rossli]

Although I use vscode debugging function, I find this video useful on understanding how debugging works under the surface. Thanks!

[mrm]

Thank you for putting this together. One should not just assume that there will be explanations on anything you want on the net. However, the Python debugger must be a relatively rare choice! I am getting into coding Python with Atom and really needed help with the debugger. Easy to download but where to find how to use it if you are a novice is tricky. So thank you once more for taking the time and effort to do this. Really helpful.

[zoomosis]

Probably worth mentioning that Python 3.7 now has a breakpoint() function. Also, the ipdb debugger is worth a look, in addition to ipython.

[alvaro.sacris]

Why the start of the code is the third function? I just dont get it. Why is the second debug point triggered first than the first one?

[udaykumar-tvwk]

You have given a start with great explanation but confused in middle when two set_trace() are in place. But at the end a clear picture was shown how to actually trace. Liked it and thanks for the transition. Please keep up the good work. Thank you.

[bendirval]

How does this compare with using ipython and embed()? That's what I've been using but if this is better, I'm happy to switch.

[kusamuzukashi]

cool explaining for beginner sir, i like it

[apivovarov]

How to debug Python application which uses native app.so library inside?

[steveball]

Good explanation and this is not a criticism of the presentation. I am very familiar with Perl and am beginning to learn Python because of all of the hoopla surrounding it. So far I’m not impressed. I actually have to change my source code with an “import” statement and a set_trace() command in order to debug it? And then I have to remember to remove the debug enabling lines when I am done? It is so much simpler with Perl, simply invoke “perl –d myCode.pl” where “myCode.pl” is the code file I want to debug. The “-d” option invokes the debugger without changing the source code at all. Ugh!

[oyeyipo]

use vars() or locals() to get all the variables assigned in the current context.

[bobbyq]

hi Sir, stumbled across this video on the debugger and hoping to get some help. two days ago my python debugging tools would stop working when i call input() functions during debugging process (VSC & Pycharm) . when i key in an entry for input(), my code keeps running non stop with no output registered. however, when i run my code directly in terminal it is working fine. Using python 3.8 . please help!

[LondonAppDeveloper]

We've just launched a new course: *Python for Beginners: Learn how to code properly in 2021*

[vingowda]

WoW!! Simple and nice Explanation. Thanks a lot friend :)

[manihal]

Thanx alot!! It was so helpful... Keep up the good work mate!

[michajabonski]

Normally, instead of using pdb, you should rather start with setting up and using debug tools available for your code editor/IDE. But if, for whatever reason, you want to debug your code on a command-line-only server, then pdb is a very good tool. Thanks for a very useful intro.

[vedprakash-bwms]

That was a great short introduction on python debugger..!!
Make some videos on python code deployment as well ..

[rudrtiwari]

Great, pretty straight forward and clear explanation

[vaidehicrs]

how did you achieve a dark theme for your spyder ?

[prateeksarangi]

I follow you change rest framework backend API on identify ! Fan since then

[MohAmuza]

I thought this videos was about "graphical debugger for Sublime Text"!
but for "pdb" its better to install "ipdb" which it has more features