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Python Textwrap Wrap ExampleUse the textwrap module and the wrap method. Wrap text to a certain number of characters.
Textwrap. The textwrap module provides wrapping for plain text. Often text files are inconsistently wrapped. Some lines are longer than others. With Python code, we can count characters and rewrap lines.
Example. Using the textwrap module is simple. We must first include textwrap through an import statement at the top. Here we use a triple-quoted string to store a sentence of text. We then invoke the textwrap.wrap method.
Width We specify the optional argument width to the wrap method. By default, width is 70, but we want something a bit narrower.
List The wrap method returns a list. We can loop over this list with a for-statement. We can manipulate or join the list.
Output In the output, we see the wrapped text. The longest line in it, the third line, is exactly 50 characters long.
So Textwrap.wrap here correctly wrapped the sample text, which is from a book by Vladimir Nabokov.
Discussion. The textwrap module is simple to use. This is part of its appeal. If it were complex to use, writing your own text wrapping method might be more convenient. Other methods, such as fill() are helpful.
Fill This method does the same thing as textwrap.wrap except it returns the data joined into a single, newline-separated string.
Python program that uses textwrap.wrap
import textwrap value = """The image in these opening lines evidently refers to a bird knocking itself out, in full flight, against the outer surface of a glass pane in which a mirrored sky, with its slightly darker tint and slightly slower cloud, presents the illusion of continued space.""" # Wrap this text. list = textwrap.wrap(value, width=50) # Print each line. for element in list: print(element)
The image in these opening lines evidently refers to a bird knocking itself out, in full flight, against the outer surface of a glass pane in which a mirrored sky, with its slightly darker tint and slightly slower cloud, presents the illusion of continued space.
Summary. Python comes with many helpful modules included. With textwrap, we access effective text wrapping methods. This prevents repetitive coding tasks: we can often avoid writing our own line-breaking algorithms.
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