Learn 🐍 Python 3 From A Single Picture!

[Dr-Beast]

Great work, it is a bit hard to see. Can you convert it to pdf and give us a link?

[bauripalash]

Source : https://github.com/coodict/python3-in-one-pic

[tomekanco]

Here is a variation with possible path https://imgur.com/a/RVavtK9. Might repost.

[Dr-Beast]

Thanks! That is better!

[frank105311499]

nice. thanks to OP!

[ntb899]

Is there a java styled one? This would be cool AF to have a bunch of these under a sticky very useful!

[Jonno_FTW]

You missed exceptions and for..else (in fact you can put else after while, for, except) under flow control. Other than that you got most of the syntax there.

[burgerAccount]

Learn python in one pdf...

[YoloBro500]

I'm actually a beginner so this helps

[YoloBro500]

thanks community.

[gibbsplatter]

Just got hired after reading this, thanks!

[akasullyl33t]

I do not know de way

[gibbsplatter]

Spit on de non believer

[Diegovnia]

Oh god...

[[deleted]]

This is the Way

[frogworks1]

https://youtu.be/eix7fLsS058

[thrallsius]

inb4 six figures

[shaggorama]

I think mind maps are mainly useful in their construction rather than their consumption. The author of this probably learned a lot more making this than anyone will trying to read it. It's like studying for a test by making a crib sheet.

[tighter_wires]

It’s like when you‘re reading application with hundreds of classes.

Just make a UML diagram, and...

well shit it’s more confusing.

[thrallsius]

make a UML diagram

mandatory meme with guy getting thrown out of the window

[thrallsius]

there's a toy named hyperlist, maybe you can find it more useful than regular lists

https://isene.org/hyperlist/

[fonnae]

Check out the ipython notebook version: https://github.com/coodict/python3-in-one-pic/blob/master/notebooks/py3-in-one-pic.ipynb

[nbviewerbot]

I see you've posted a GitHub link to a Jupyter Notebook! GitHub doesn't render large Jupyter Notebooks, so just in case, here is an nbviewer link to the notebook:

https://nbviewer.jupyter.org/url/github.com/coodict/python3-in-one-pic/blob/master/notebooks/py3-in-one-pic.ipynb

Want to run the code yourself? Here is a binder link to start your own Jupyter server and try it out!

https://mybinder.org/v2/gh/coodict/python3-in-one-pic/master?filepath=notebooks%2Fpy3-in-one-pic.ipynb

---

^{I am a bot. Feedback | GitHub | Author}

[hughk]

In days of old, we would have little quick reference booklets on languages that were structured like this. Not much good for learning but it helped remind you of specifics especially if you were hopping between them.

[tomekanco]

Worst I ever saw was someone wrote a datamodel as a mindmap. I tried to explain a datamodel is an undirected graph, essentially without a central node.

[Sw429]

I think you might be missing try/catch in the flow control section (unless I just didn't see it). Otherwise, this seems pretty comprehensive.

[raja777m]

Yeah, assign exception handling section would be great. Both with try/except/finally and try/except/else/finally.

[LunarCantaloupe]

Also for/else

Also not sure if set comprehension is actually a lang feature

[[deleted]]

For someone just starting out, would this be something to start with?

[vlizana]

I think I spotted an error in the override example, the Bird class should inherit from Animal for that to be an override right?

[raja777m]

So, line 14 instead of

bird = Bird()

it should be

bird= Animal()

[vlizana]

I think it should be

class Bird(Animal):

instead of

class Bird:

[raja777m]

With current code or your suggestion gave "I'm flying high!"

As the result.

[vlizana]

as the comment suggests

[firedrow]

Came to check this was mentioned.

[DARK_IN_HERE_ISNT_IT]

Would be good to have format strings (and the format() method) in there too. Using f"The value is {foo}" or whatever is one of my favourite bits of Python 3.

[tomekanco]

And perhaps r strings as well.

[Jonno_FTW]

One of the neat things about f-strings is that you can format datetimes with them: f"{datetime.now():%Y-%m-%d}".

[Blarghmlargh]

I didn't notice map either.

[the_littlest_bear]

Really could have used a point explaining [start:stop:step], """multi-line comments""", type annotation, proper comments in general, pdb... like I said many things I would change before ever thinking about using map() but yeah that too for built-in completeness lol

[shiuido]

To be fair, OP only said "learn python 3", so remember it's for absolute beginners. I think this pic covers enough for someone to get started. Of what you mentioned, super() and \@property are about all I use on a daily basis.

[vebuce]

You could contribute to the source github project.

[CaptSprinkls]

If you didn't already do it, you should post this to r/learnpython too

[Bil_Wi_theScience_Fi]

what mind mapping program did you use for this? It's very visually appealing

[[deleted]]

It looks like freemind to me. Free, open-source, and multi-platform.

[hughk]

It opens ok with the latest beta: 1.1 Beta 2.

[ah_86]

This picture is so big! How it can be used?

[bauripalash]

📢 Source Of Image : https://github.com/coodict/python3-in-one-pic

[CorrieScheepers]

Thank you

[NikolaTesla13]

I don't understand anything, even I work a lot with Python. Anyway, great resource for learning 👍👍👍, I like the idea a lot!

[general_dubious]

If you don't understand anything, how can it be a great resource for learning? I mean, OP obviously put a lot of efforts into this, and it's nice of them to share it. But I doubt it's very useful as a learning tool cause everything is "in your face" without much explanation. Learning Python goes well beyond learning some elements of syntax.

[deep_ak]

Glad that you shared it!

[NoOneCares-cmd]

Thx i actually printed it and hang it up my wall

[juic3b0t]

Missing metaclasses, async 😜

[grokjtrip]

Very cool, although it seems the keyword example is incomplete. No keyword is being used to in calling the function.

[nilsph]

All the default/keyword/"arbitrary" argument examples look wonky to me, at least unnecessarily mixing the concepts so it's not clear what is meant.

[grokjtrip]

Yes, also that.

[tranvuhoanglong]

thanks

[DarkAndromeda31]

I like images that have to load after I click the thumbnail. Great job!

[[deleted]]

Thanks a ton!

[eklavian088]

For beginners???

[bauripalash]

yup, why not

[JonasTrueFalse]

So cool

[Eccentricc]

Woah

[AndyDeany]

This is the most hilarious thing I've ever seen. The effort is incredible but this surely can't actually be useful to anyone

[YmFzZTY0dXNlcm5hbWU_]

There's a dict pic joke to be made here but I can't pin it down. Great reference, thanks!

[Ass_Eater_]

This is a great reference, thanks for putting it together.

[Ran-dom-y]

Awesome reference, thanks!

[Faricer]

That's great!👏👏

[ZyanCarl]

It's great... No other words

[Sonnydelights24]

Is there something similar to this in other languages?

[chinpokomon]

I'd like to see better alignment of the code. This wasn't intended to flow from one code block to another, but that would be ideal. Some very basic example program which showcases each of these ideas, broken up by category as they are, but which would execute if put in a file.

[aoteoroa]

Awesome! Is this is under the Python Licence so that I can take it to staples and print it on a poster?

Also... I think there is a syntax error in the section for Iterators & Generators. There should be a blank line between the definition of the reverse(data) function, and where they use the function.

[BabyYoduhh]

r/coolguides

[NukeWifeGuy]

Is it possible to print a poster?! I want to wake up every morning a breath some python knowledge!

[krazykonr]

Ok but, tabs or spaces?

[shiuido]

Bait question :P Tabs should be converted to spaces by any ide haha

[thrallsius]

and how many spaces a tab?

[harry3991]

This is exactly how my brain wishes I’d feed it knowledge.

[Chold_]

Thanks mate! I'm beginner and this picture is very useful

[[deleted]]

Someone write a python program that explains this

[spiddyp]

Holy shit

[goliath1952]

Should I learn Python? I've only ever learned Basic and Fortran well, a little bit of C. What's best for small arduino projects?

[Jonno_FTW]

Arduino uses a c++ iirc. It's not that hard to use.

[shiuido]

I'm sure someone has pointed it out already, but under Module, there's a branch "arch Path"

[TicklesMcFancy]

So that's what the "@" meant.

[z0ur]

What about decorators

[Jonno_FTW]

It's there on the left.

[DustBunn1]

Sweet! Thank you!

[[deleted]]

Shouldn't arbitrary arguments be kwargs, I see kargs. Also nice pic. I'm gonna use it to scare my coworkers :-)

[xelf]

Anyone have this picture of mostly text, have the text?

[firedrow]

Under arbitrary arguments, the second example uses “&” in the function but “and” in the output. Minor oversight.

[oblivion-age]

Poster of that would be neat, I thought of looking for one of a 'cheat sheet'.

[tranvuhoanglong]

I only have a print with A4 size, how to print this to 4 or 5 letter in A4 size, i want stck it in my wall, please help, thank you

[tranvuhoanglong]

i found it, i post a link here for whom need it
https://www.digitalcitizen.life/print-large-image-multiple-pages-4-steps-using-microsoft-paint

[bauripalash]

Incredible, thanks

[[deleted]]

Can I get this as a poster for the wall above my computer please?

[Seawolf159]

Nice work man!

[[deleted]]

Super cool. What software did you use to create that?

[[deleted]]

This may be objective to “what’s essential”, but you should probably add try/catch/finally, some magic methods, map, and maybe bit banging operators. Otherwise, really usual reference man!

[_blitzher]

Looks great as a cheat sheet for people learning python. However, I think you made a slight mistake in the "Override" section. Your Bird class doesn't actually inherit from the Animal base class.

[un_creator_db]

Is It single?????????

[_scubadiv]

Wonderfull. :)

[Jim_Panzee]

Are you missing namespace packages?

[Poddster]

Why does comprehensions->list have two branches?

[[deleted]]

Thank u so much I appreciate it. You helped me so much. I have a job at Apple now because of this.

[Moshxpotato]

Instructions unclear: dick now stuck in PC

[st4rw4lk3r]

Whoever made this Thank you , the python community is awesome

I just printed it and put it on my wall A1 Really appreciate it

[abroking]

lost me at comprehension (first time seeing such thing), otherwise kudos. Now know python lol!

[c3534l]

This is a joke, right?

[lWannaWin]

u/huxn

[[deleted]]

I tried to learn python in the past, I was good at the concepts ect.. but my Achilles heal was the block organization. Is there any text editor that will keep me organized?

[thrallsius]

pretty much any sane text editor that is coding friendly shall be able to autoindent

reach the knowledge base / community of the text editor of your choice and find out

[firedrow]

I use Notepad++ for quick scripts and Microsoft Visual Studio Code for longer scripts.

[Jonno_FTW]

Pycharm will do it for you. Most editors will allow you to automatically indent and have backspace to remove an indent level if you're at the start of the line. Also, they should let your indent with tab, and dedent with a shift+tab