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num_checkboxes=5# Number of checkboxes to createcheckboxes=create_checkboxes(root,num_checkboxes)# Create checkboxes and get the list of variablesroot.mainloop()# Run the Tkinter event loop# Entry point for the scriptif__name__=="__main__":main()...
In the above example, we are trying to read only the 4thline from the ‘test.txt’ file using a“for loop”. Output: Reading the entire file at once filename = “C:/Documents/Python/test.txt” filehandle = open(filename, ‘r’) filedata = filehandle.read() print(filedata) Output...
Lines 19 and 20 define a for loop that iterates over the PDF pages, extracts their content as strings, and appends these strings to content. Line 22 concatenates all the strings in content using the .join() method and a newline (\n) character as a separator. Finally, it writes the ...
The following table shows how the Tkinter recognizes different events: EventModifierTypeQualifierAction <Button-1> Button 1 Left mouse button click. <Button-2> Button 2 Middle mouse button click. <Destroy> Destroy Window is being destroyed. <Double-Button-1> Double Button 1 Double-click first ...
Build your user interfaces visually in theQt Designerdrag-and-drop editor. We'll take a quick tour of the designer and show how to load your created interface into Python. Unleash yourcreativity Think the default look of Qt is a bit drab? You can customize almost anything usingStyles, Palet...
Table of Contents [hide]Ways to create a list from 1 to 100 in Python Using the range() function to create a list from 1 to 100 in Python Using the numpy.arange() function to create a list from 1 to 100 in Python Using the for loop with range() to create a list from 1 to ...
{ public string Ident; public Expr Expr; } // for <ident> = <expr> to <expr> do <stmt> end public class ForLoop : Stmt { public string Ident; public Expr From; public Expr To; public Stmt Body; } // read_int <ident> public class ReadInt : Stmt {...
EN只要是对于集合有一定了解的一定都知道HashMap是线程不安全的，我们应该使用ConcurrentHashMap。但是为什么...
Creating tuple in Python: #Defining a tuple my_tuple1 = (1,2,"a","b", True) #Accessing element of a tuple print(my_tuple1[0]) print(my_tuple1[2]) Output: Table of Content Introduction to Tuples in Python Immutable nature of tuples ...