How to copy text from IDLE? - python

Is there a way to copy text out of Python IDLE on a Mac? When I highlight text and copy then past into a text editor, I get the same text pasted. It is some of the first text I start with in IDLE. None of the other text will copy out.

From The Things I Hate About IDLE That I Wish Someone Would Fix (from 2011):
1.2) NEW FEATURE: Auto-Copy-On-Highlight
Once we get rid of being able to move the cursor off the last line, that opens a new opportunity to implement an automatic copy-on-highlight feature that many terminal and IRC client programs implement. Since this text is read-only, the only reason a person has for highlighting it is to copy it (they can’t delete it.) As soon as the user highlights text in the shell window, it is copied to the clipboard.

Looks like the best you can do is save as a .py file. Open that in a text editor and continue working in IDLE. With each save, the text editor will refresh with all updates, including errors. At least TextWrangler will.

Sometimes in things like a linux terminal you can't do a normal copy and paste, try holding Command/Control + Shift + C after highlighting things and seeing if that works, since you're on mac i'm not sure if it would be the Command or Control key so try both
EDIT: There is an apple discussion about the exact same thing. They discuss going into the options menu, then into configuration and navigating to the keys section. Then you use a built in key-set, their suggestion is using IDLE Classic Mac.

I cannot tell from your description exactly what you did and what happened. But I can recommend that you upgrade to 3.4.4 or 3.5.1 (or 2.7.11 for 2.7 users). Among other improvements, they all contain a patch to make right-click for context menu work on Mac Aqua. This was issue 24801 on the CPython bug tracker.
If there is still an actual problem on Mac, I would like to know so it can be fixed.

Related

Why doesn't highlighted text show what data type the highlighted text is?

I'm using pyton with VSC and ran into a problem while watching a tutorial; when highlighting a number in brackets, the data type doesn't show up, while it does in the tutorial. IE: when higlighting 4.5 in
print(4.5), it should say 4.5: float in a popup, but that doesn't happen. Can anybody help me?
Visual Studio Code does not have automatic intellisense, you need to download a language specific extention to use it.
Steps to download:
open the extentions menu located on the left toolbar (ctrl-shift-x).
search for python.
click install on the top result.
(optional) restart VSC, I don't know if it is necessary, but better safe then sorry.
I hope this fixes your problem :) .
Edit: I just checked, and after installing the extention will say something along the lines of 'reload to enable extention', if it does not, it doesn't need it. Otherwise, just click the text that says that.

Spyder missing Object Inspector

I just installed Anaconda and running Spyder I cannot find the Object Inspector. Hitting Ctrl+I has no effect and in the View/Panes menu there is no item Object Inspector.
I have seen videos and tutorials that show the Object Inspector. What is happening?
The "Object Inspector" is now called "Help" (from Spyder version 3.0 onwards); see https://groups.google.com/forum/#!topic/spyderlib/pF7KmSKDFXc . However, the Ctrl-I shortcut has not been changed, so I'm not sure what's happening with that.
go to preferences > Help and enable the Automatic connections for Editor and restart the Spyder
This worked for me!!
Although it's given in the tutorials but I'll explain.
1) Object Inspector is now known as Help.
2) I'm using Spyder 3.6, here go to Tools-->Preferences-->Help-->Check on Editor in Automatic Connections
3) Select your parameter and Ctrl+I
That'll do it.
I had the same problem. I found the help and then discovered that I got a message saying No Documentation. I tried changing the setting from Rich Text to Plain Text and for some reason that worked and I'm able to use the Object Inspector.
Since they changed "Object Inspector" to "Help", as Jitse Niesen says, they might have changed the shortcut too. In my Mac version the shortcut for "Help" is Shift+Cmd+H so the combination you are looking for is probably Ctrl+H.
On mac using Spyder 3.3.1 run from Anaconda.
Cmd + I was not working for me at first to show the object inspector on the right pane for help on a particular function. So I typed in Cmd + , (which is to access preferences panel in any app on Mac), and went down to "Help" on the left side.
Then, I checked the boxes for "Editor" and "IPython Console" under the description that says
"This pane can automatically show an object's help information after a left parenthesis is written next to it. Below you can decide to which plugin you want to connect it to turn on this feature."
After checking these boxes and pressing OK, Cmd + I still did not work for getting the object information.
I restarted Spyder, closing it and reopening it from Anaconda navigator.
Now Cmd + I works and shows the information for whatever function I click on.
Hope this helps someone. I'm still not quite sure what happened here (since those checkboxes were for the left parenthesis function), but I still thought that sharing the steps will be useful to some people.
In Windows, Ctrl+Shift+H worked after making changes to preferences as suggested by Ibrahem
Go to preferences->Help and tick the option of showing object info on Editor , then ctrl+I will work with any object
One way to go about this is to go to View > Panes > Online Help. Then in the search box insert the module or package like so (sklearn.preprocessing.Imputer) and you will have all the docs related to the package.(**Shortest way: click on package....then Cmd + i )
Alternatively, right clicking the Object in the editor, select Go to Definition
Third way, in your console, type help(your class here) like help(Imputer) or just help() to get the interactive console then type your package there (sklearn.preprocessing.Imputer`).
Hope this help someone.
After pressing Ctrl+H , a help window will come in that in [Source] dropdown select Console
Please check the spelling of your command, if you type wrong spelling it wont display the help
Note that in Spyder version 3.2.4 under Tools>Preferences>Help>Automatic Connections it clearly now states: "This pane can automatically show an object's help information after a left parenthesis is written next to it. Below you can decide to which plugin you want to connect it to turn on this feature." Then you can select Editor and/or IPython Console.
When I tried this, placing a left parenthesis before the (term is the only way I could get the help to bring up an example and a definition.
Nothing worked from above. I can debug objects easy in Visual Studio Code, but I can not do it in Spyder 3.2.8 installed with Anaconda 5.2 for Windows. In IPython console during debugging I use following.
To inspect an object:
vars(my_object)
To list class objects:
[obj.name for obj in gc.get_objects() if isinstance(obj, my_class)]
This solution solved the problem and shows objects in Variable Explorer.
https://gitter.im/spyder-ide/public?at=5b69bac8e9ab53770ca018d0
Question:
How can I explore objects during debugging like I explore variables?
In IPython consle I use vars(my_object), this is a prompt way. I want a GUI way for Object like Variable explorer.
I want a GUI way for Object like Variable explorer.
Answer:
As a matter of fact, Spyder has one, exactly like the Variable Explorer: it's called...the Variable Explorer! If you can't see them, make sure Exclude unsupported data types is not selected under the "Gear" menu in the top right of the pane.
Most arbitrary objects should work, although there may occasionally be a few bugs for more esoteric ones. Even better support will be coming in Spyder 4.
Just left click on the top right corner, beside the close tab of editor and below the working directory tab
I tried it, and it successfully worked.

How to paste text from the clipboard into a text field

How can I paste a string into a text field, like for example the Windows search bar or a text editor using Python?
I searched a lot for this, but all I can find is hundreds of questions asking how to copy to the clipboard or getting a string from the clipboard. What I want to do is paste from the clipboard into the active Window, as if I were pressing ctrl+v. If possible, I want to avoid the seemingly complicated way of emulating the actual low-level keyboard press.
In Windows clipboard is considered IPC (Inter process communication).
You can read some of the details here.
In python you can use this library I think supporting major OS.
For linux specific are options like xclip but I think it's desktop environment dependent.

Keymaps in Light Table are not working

I just started learning Python with "A Byte of Python". I'm currently learning Light Table, the editor that the tutorial suggested.
This may be very amateurish but I have no experience whatsoever and this is all new to me.
I want to open console with cmd-shift-c so this is what my keymap looks like:
{:+ {:app {"cmd-shift-t" [:workspace.show]
"cmd-shift-c" [:toggle-console]}
I click ctrl+shift+c and nothing happens, even after I save my keymaps file.
My editor commands work, though, when I unindent a line.
Since you said you clicked ctrl+shift+c I'm going to guess you're not on a Mac and should probably change your settings. I just tried the same thing as you have on my machine and it doesn't work.
However, changing it to {"ctrl-shift-c" [:toggle-console]} worked fine for me.

GEdit/Python execution plugin?

I'm just starting out learning python with GEdit plus various plugins as my IDE.
Visual Studio/F# has a feature which permits the highlighting on a piece of text in the code window which then, on a keypress, gets executed in the F# console.
Is there a similar facility/plugin which would enable this sort of behaviour for GEdit/Python? I do have various execution type plugins (Run In Python,Better Python Console) but they don't give me this particular behaviour - or at least I'm not sure how to configure them to give me this. I find it useful because in learning python, I have some test code I want to execute particular individual lines or small segments of code (rather then a complete file) to try and understand what they are doing (and the copy/paste can get a bit tiresome)
... or perhaps there is a better way to do code exploration?
Many thx
Simon
Yes, you use "external tools plugin"
http://live.gnome.org/Gedit/ToolLauncherPlugin
As an example,
Edit > Preferences
Plugins
Tick "External Tools"
Close the Preferences Window
Tools > Manage External Tools
Click the "Add new too" icon in the bottom left
Name it "Execute Highlighted Python Code"
give it a keyboard shortcut
change the input combo box to : "highlighted selection"
change the output to : "Display in Bottom Pane"
In the editor window for the tool, replace everything with :
.
#!/usr/bin/env python
import sys
result = eval(sys.stdin.read())
print expression, "=>", result, type(result)
.
If you wish to see the result of entire .py file, you can put this code in your new created external tool window
#!/usr/bin/env python
import sys
exec(sys.stdin.read())
and change the Input to Current document.
For python, You can use "external tools plugin":
#!/bin/sh
python3 "$GEDIT_CURRENT_DOCUMENT_PATH"
Option of external tool:
Save: Current Document
Input: Current Document
Output: Display in bottom panel
Language: Python or Python3
Don't forget the quotes around $GEDIT_CURRENT_DOCUMENT_PATH....
To answer your second question, and hopefully guide you in a direction you'll be happier with, I think you ought to consider trying some different editors. There are many with more powerful code exploration features than GEdit has. Check out this post:
What IDE to use for Python?
I installed iPython console in gedit and do most of my simple scripting in it, but gedit is a very simple editor, so it'll not have some advance feature like an IDE
But if you want code exploring, or auto completion, I recommend a real IDE like Eclipse.
If you just want a editor, KomodoEdit is fine.
What I do is keep a file called python_temp.py. I have a shortcut to it in my dock. I use it as a scratch pad. Whenever I want to quickly run some code, I copy the code, click the shortcut in the doc, paste in the text and hit f5 to run. Quick, easy, simple, flexible.
I think what you're looking for is http://live.gnome.org/Gedit/Plugins/BetterPythonConsole.
You hit F5 and it runs the code in your file in a IDLE-like console. I don't know if it can only run selected code. (I don't think it can) but you can always copy the needed code in a new window and run it from there.
Have a look through the plugin list for other interesting stuff: http://live.gnome.org/Gedit/Plugins
The closest to a decent IDE...
Install gedit-developer-plugins (through synaptic || apt-get) and don't forget to enable (what you need) from gEdit's plugins (Edit->Preferences [tab] plugins) and happy coding

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