"Stop Printing, Start Logging!" (Logging Tutorial For Python Developers)

Logging is far more powerful than printing in Python. It really gives you a lot of free information, so in this video I will teach you the basics of how you can get started with using the logging module in Python, so that you can create far more detailed logs!
Logrecord Attributes:
docs.python.org/3/library/log...
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00:00 Intro
00:24 import logging
00:34 What is logging?
00:46 Logging levels
03:39 Log file
04:20 Adding variables
05:50 Creating detailed logs
06:43 Formatting
12:40 Conclusion

[@arhamsayyed9518]

A tutorial no one asked for but everyone needed

[@untakble]

i agree

[@solothebest1850]

No other way to put it

[@higiniofuentes2551]

For the young developers: the creation of a log file is vital in production to quickly detect/follow any failure!

[@SuperVirus1978]

Thank you for this video. There is another reason why you should use the "old" method of string formatting instead of f-strings: The message string is only expanded/formatted if it is printed/logged - so it will save some procesing power, especially for debug messages which a rarely enabled. If you use a f-string it will be formatted before it is handed over to the logger - regardles if it is used or not.

[@behnamheydarian9569]

It will be great if you add real-world examples in your videos. It helps to understand where these modules are used

[@littlehuman4860]

exactly the tutorial I needed, I heard about logging few days ago and was planning to check it out

[@nicflatterie7772]

Well done, to the point, clear, will look for your other videos.

[@MrValVet]

I love your tutorials. Very well explained. Thanks!

[@Indently]

Thank you!

[@williamsusa5067]

What is the fastest way to learn Python?

[@MeiLinFjellstad-oe2cc]

For me it was learning through books that have interactive content. That way you practice while you learn is easier to remember what you just learned. I learned with: "Programming Not Painfully Boring" for the basics of programming and "Smarter Way to Learn Python".

[@gpt.answers]

coding

[@user-vb9mv9xb1x]

exactly what I need right now, thanks!

[@ShehlaGhaffar]

Thank you soooooooooo much, it worked all perfectly in the project at work, where we have build an AI chatbot for space sector training solutions.

[@Try95th]

Huh. I've been writing my own logging functions. This might come in handy in the next project. Thanks!

[@bozok1903]

Tankyou for the video. It's another very informative and important subject. I have created a user snippet for logging and using it all the time.

[@Diegos79]

Excellent teaching. Thanks!

[@higiniofuentes2551]

Thank you for this very useful video!

[@FranciscoAntonio-fh1eu]

Thank you very much bro !!!

[@kattamaran]

Nice start. Could use a better, real world example. Like combining it with a normal exception you run into and how to log that. Or maybe with a debug example where you try to follow a variable? Is that an example you would use it for in the real world? Im a beginner.. I usually struggle with youtube tutorials because they lack real world examples.

[@WondrousHello]

Yeah I was gonna say the same. Need to see this properly in action to understand why it’s useful. Seems just like print with extra steps at the moment.

[@bygracethroughfaith3213]

Thank you 🥺🥰💕

[@kiwiwelch3620]

I need more of your videos

[@martin_460]

AFAIR a classic string formatting ala `log.error("Cant find file %s", filename)` is preferred, so tools and services like Sentry can properly group messages.

[@mahdimalekifard4038]

perfect content

[@HitBoxMaster]

Are there even people running Python versions pre 3.6, where you don't have f-strings, or even worse, 2.7 where don't have the format() method? A more pertinent question still, why would even be concerned about this kind of backwards compatibility? Really cool video though. Would've been cool to see real case use though

[@mariodemarco8973]

Great, already known, that logging lib is there, but this made it more clear. I just wonder if it possible to change config for the level during the code is excuted (e.g. use debug for some new code) while keeping warning for the rest. further, I figured out, that style="{" in the basicconfig enables better formatting like this {asctime:

[@elpiloto100]

12:30 If you import hello_module before basicConfig, then the configurations passed to basicConfig won't be applied? Does that mean import logging and basicConfig needs be the first and second line in your program everytime?

[@elpiloto100]

Is it possible to raise an error automatically with the logging.error and logging.critical call?

[@SolidBuildersInc]

This was really an awesome share for debugging. I recently found pdb. import pdb Can't recall how to istantiate it but you may get something out of it. You can put break points and a host of things from the command line. The 2 of these tools together would be a great thing to have in the tool box for complex applications. I really like the logging of imported modules. Breadcrumb Vacuum Cleaner Kudos

[@joelhatsch6618]

Problem I have is how to handle the log output. either it's too detailed or not enough, or I need different level of detail in different parts of the code etc... ist there a good viewer for the logfile that would maybe thread the output, allowing to collapse/expand the threaded messages. integration in visual studio would be a plus 😀

[@sg8nj]

Have doubt: 1. logging.basicConfig can create fille hanlder? . 2. Have created two logging object using logging.basicConfig Is it possible to copy log content from log 1 to log 2. While copy I don't want to copy the timestamp, thread details from log1, need to copy only the content.

[@josecintron85]

can you point different log levels to different files?

[@yashbhatt2164]

Please Please Pretty Please keep making videos like this. The world needs it. YOU ARE A PERSONAL HERO. 🤗

[@iamworstgamer]

which ide you are using

[@manolomonetha8238]

Is there an option for global configuration?

[@LiamInviteMelonTeee]

I wonder how many of us watch both your and Mcoding's videos

[@RoysIdea]

Nice video, but why would anyone use such an archaic datetime format in a log file? Just stick to the default

[@Anshegar]

I think this lib need then you are finish app, and you need ,ake some login temp files, but in dev process print(1) is a GOD XD

[@nicenaija9952]

Which ide is this

[@adityasinha7664]

Vs Code

[@Jugular1st]

Indently says its PyCharm in the video.

[@giovannirossi943]

@@adityasinha7664 Nope, it's PyCharm. He's using the new UI (beta)

[@VinceKully]

loguru > built-in logging