How to force Tkinter text widget to stay on one line?

Tkinter text widget can be configured by using the configure(**options) function. We can use it to configure the background color, foreground color, wrapping and other properties of the text widget.

The wrap property of the Text widget controls how text wraps when it reaches the edge of the widget. By default, text wraps to the next line, but we can prevent this behavior to keep text on a single line.

Understanding Text Wrapping Options

The Text widget supports three wrap modes ?

• wrap=WORD − Wraps text at word boundaries (default)
• wrap=CHAR − Wraps text at character boundaries
• wrap=NONE − Prevents text wrapping, keeps text on one line

Example

Here's how to create a Text widget that keeps text on a single line ?

# Import the required libraries
from tkinter import *

# Create an instance of tkinter frame or window
win = Tk()

# Set the size of the window
win.geometry("700x350")
win.title("Single Line Text Widget")

# Add a Text widget
text = Text(win, width=60, height=20)
text.pack(pady=20)

# Add some long text to demonstrate the effect
sample_text = "This is a very long line of text that would normally wrap to multiple lines in a Text widget, but we will configure it to stay on one line using wrap=NONE."
text.insert(END, sample_text)

# Configure the text widget to make the text stay on one line
text.configure(wrap=NONE)

win.mainloop()

Adding Horizontal Scrollbar

When text doesn't wrap, you'll likely need a horizontal scrollbar to view the entire line ?

from tkinter import *

# Create an instance of tkinter frame or window
win = Tk()
win.geometry("700x350")
win.title("Single Line Text with Scrollbar")

# Create a frame to hold text widget and scrollbars
frame = Frame(win)
frame.pack(fill=BOTH, expand=True, padx=10, pady=10)

# Add a Text widget
text = Text(frame, width=60, height=20, wrap=NONE)

# Add horizontal scrollbar
h_scrollbar = Scrollbar(frame, orient=HORIZONTAL, command=text.xview)
text.configure(xscrollcommand=h_scrollbar.set)

# Add vertical scrollbar
v_scrollbar = Scrollbar(frame, orient=VERTICAL, command=text.yview)
text.configure(yscrollcommand=v_scrollbar.set)

# Pack the widgets
text.grid(row=0, column=0, sticky="nsew")
h_scrollbar.grid(row=1, column=0, sticky="ew")
v_scrollbar.grid(row=0, column=1, sticky="ns")

# Configure grid weights
frame.grid_rowconfigure(0, weight=1)
frame.grid_columnconfigure(0, weight=1)

# Insert sample text
long_text = "This is an extremely long line of text that demonstrates how the horizontal scrollbar works when wrap is set to NONE in a Tkinter Text widget."
text.insert(END, long_text)

win.mainloop()

Key Points

• Use wrap=NONE to prevent text from wrapping to new lines
• Consider adding horizontal scrollbars when text doesn't wrap
• The wrap property can be set during widget creation or using configure()
• Without wrapping, very long lines will extend beyond the visible area

Conclusion

To force a Tkinter Text widget to keep text on one line, use wrap=NONE. This prevents automatic line wrapping but may require horizontal scrollbars for long text to remain fully accessible.