How do I avoid starting all over after a mistake in python console?

Question

Whenever I make a mistake in a line of code in python, it's like I just have to start all over. What do I have to do to avoid this? Again, is there a way to take my cursor to a place or point in the console and add or edit something?
Thanks.

Answer 1

I always recommend PyCharm, especially for beginners - it is a bit heavy, but it does a lot of work for you - manages your modules, gives you hints and autocompletion as you type, etc.

How do you access the built-in editor, hmm... Python GUI?
http://www.tech-recipes.com/wp-content/uploads/2012/09/3.jpg

Answer 2

The console enables you interactive way of coding, not appropriate if you plan to make a working program. You should create your work in an IDE, like Pycharm, use an external editor like Notepad++ or the default one embedded within your Python installation - IDLE. It has two window types - the shell, which you are probably using and the editor which is way better suited for programming.

Answer 3

@Daniel For mobile there is QPython3 which has both a console and an editor. Plus, it contains several interesting code examples, including those utilizing the sl4a library (Python for Android).

Answer 4

@Kuba; Right; yes. Maybe it's smaller now? I guess I sortof ignore it on my mobile & simply forget about it on my tablet.
Thanks for the reminder / perspective.

Answer 5

Pls let me know if that helped :)

Answer 6

@Kirk Thanks man, I have to try it then. I hear that people complain on DroidEdit, it seemingly has a banner overshadowing the screen in the free version. Is that true?

Answer 7

@kuba If you mean: pip install -- it's fantastic... IMO because it's a standard linux shell, just like a PC (to shell in QPython (old) I had to trick the interpreter into crashing out).

I'm linking my 'fair comparison', written after many long days fixing+fighting QPython's package system... writing package maintainers... even wheels... until I found the unicode defect was known in that version.

I'll also try the new QPython version (just noticed!) as a potential breath of fresh air.

[[ Aside, credit because Python's package system is known to be tricky:
http://lucumr.pocoo.org/2014/1/27/python-on-wheels/ ]]

https://www.sololearn.com/discuss/244002/?ref=app

Answer 8

@Kirk does it support free module install easily?

Answer 9

If you develop on your Android device like I do, Termux is a free app that "enhances" the built-in Linux-ish terminal and no root is required, just a lot of space because of apt packages. I purchased the Termux:API (so I can easily copy & paste from the command line) as well as Termux:Float (so I can get a toggleable floating window overlay which allows me to switch quickly between info & code).

If you wanted a little more Linux on your Android, there it is.
If you do not know the difference between "bash" and the Windows Command Prompt, best stay away for now.

Answer 10

@OP: in interactive Python you have to know what it remembers (everything up to the error), then arrow up and press enter on--in order, optionally editing--each line again as it appears. Not too much fun.

@Qpython3 users--is fine...I've just no longer been recommending it, even with its advantages. Last one I used had Unicode and pip problems... with confusing (duplicated) source trees and no apparent support.

Instead, I install Termux, 'apt install python', then use something like DroidEdit.

Answer 11

Well I'm not sure in python but in Visual studio that I use for writing C# programs I use F11 to see how my program goes step by step.
I'm sure there is something similar in python too.

Answer 12

Well there are alot of Editors that can help you code easier one of those are:
1.sublime Text
2.Notepad++
3.VIM
and many more
The first two are the most common by programmers

Answer 13

how is my code...
https://code.sololearn.com/WrAZFA9YIxrB/?ref=app

Answer 14

Thanks
Which IDE do you recommend? Also you talked about shell and editor, how do I access the editor?

Answer 15

Usually using a script window to write the code is easier. You can then use incremental development, writing bit by bit to check each piece along the way

Answer 16

Just use notepad to edit your script and then copy it to python console to run the script
If you are doing it often, I recommend you to use Jupyter Notebook, it allows you to edit and run python scripts interactively.

for more information about jupyter notebook:
http://jupyter.org/

Answer 17

always comment every statement of your code so that it will be easy to debug

Answer 18

Its super easy!! work first on your PC or an app and then write it down here

Answer 19

practice make you better

Answer 20

you can also use a python basical IDLE it's very practical