First off,
paralist = []
The list is empty so a random word between 1 and 10 will be wrong since theres nothing in the list.
master = Tk() # since Tk() is already assigned to root this will make a new window
a = Entry(master) # a is already assigned to canvas
a.pack() # this is already declare under a=canvas
a.focus_set()
def callback():
print (a.get())
Edit:
I suspect that your file might be the problem. This code:
import random
from tkinter import *
root = Tk()
a = Canvas(root, width = 400, height = 400)
a.pack()
e = Entry(root)
e.pack()
paralist = []
x = random.randint(1,10)
file = open("teste.txt")
line = file.readline()
for line in file:
paralist.append(line.replace("\n", ""));
a.create_text(200,50, text = "Typing Fun", width = 700, font = "Verdana", fill = "purple")
a.create_text(200,300, text = paralist[x], width = 700, font = "Times", fill = "purple")
b = Entry(root)
b.pack()
b.focus_set()
def callback():
print (a.get())
root.mainloop()
With this as "teste.txt":
test0
test1
test2
test3
test4
test5
test6
test7
test8
test9
test10
Works fine for me.