Proper Python scripts can take some text input, copy it to the system clipboard, and then immediately paste it wherever needed. In this case, the copied text is for a single use and not intended to persist in the clipboard memory after pasting.

Similar scripts can take multiple text files as input and combines their contents into a single text file. This could involve appending the contents of each file sequentially into the output file. 

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Copy and then store it into memory and it can be pasted for use later (multiple clipboard): page4525.         

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Use the pandas module to copy text to the clipboard: code:          
         

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Copy text into clipboard and then you can paste it anywhere: code:
         
Printed:          
         'Yougui Liao!' is copied into clipboard, you can paste it anywhere.

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Simple clipboard: code:
         
Clipped:          
         Yougui Liao

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Simple Clipboard: code:
         
Clipped:          
         XYZ

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Copy text into clipboard and then you can paste it anywhere: code:
         
Printed:          
         'This is Yougui Liao!' is copied into clipboard, you can paste it anywhere.

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Copy text into clipboard and then you can paste it a webpage automatically: code:
         
Output:         
         
         

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Print a copied list together: code:
         
Output:         
         

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Copy text into clipboard and then it can be extracted to a text file and printed by a click on the popup clipped contents : code:
         
Output:          
         

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Record the clipboard history into a txt file (note: this code sometimes causes eviroment option issue): code:
         
Output:          
         

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Copy text into clipboard and then you can paste it anywhere: code:
         
Printed:          
         
Pasted into notepad :          
         

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Copy data using clipboard from DataFrame (csv, excel, etc with DataFrame as a bridge) to paste in csv, excel: code:
         
Output:          
         

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Print the last content in the clipboard (an error message shows up if the last content in the clipboard is an image): code:
         

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Hotkeys for tasks, e.g. copy and paste: code:
         

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Copy and paste text in different ways, and then save the text contents into a txt file: code:
         
     Output:    
         

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Merge all the text files, in a folder, into a single file seperated by 50 "=" signs (code): 

Input:

Output: