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The purpose is very simple, it is for printing anything in python. pprint() function also has similar functionality. But the only difference is in the way it prints complex data structures. The normal print() function prints the entire content in a single line.
To use pprint, begin by importing the library at the top of your Python file. From here you can either use the . pprint() method or instantiate your own pprint object with PrettyPrinter() .
To use formatted string literals, begin a string with f or F before the opening quotation mark or triple quotation mark. Inside this string, you can write a Python expression between { and } characters that can refer to variables or literal values.
The pprint module has a command named pformat, for just that purpose.
From the documentation:
Return the formatted representation of object as a string. indent, width and depth will be passed to the PrettyPrinter constructor as formatting parameters.
Example:
>>> import pprint
>>> people = [
... {"first": "Brian", "last": "Kernighan"},
... {"first": "Dennis", "last": "Richie"},
... ]
>>> pprint.pformat(people, indent=4)
"[ { 'first': 'Brian', 'last': 'Kernighan'},\n { 'first': 'Dennis', 'last': 'Richie'}]"
Assuming you really do mean pprint from the pretty-print library, then you want
the pprint.pformat method.
If you just mean print, then you want str()
>>> import pprint
>>> pprint.pformat({'key1':'val1', 'key2':[1,2]})
"{'key1': 'val1', 'key2': [1, 2]}"
>>>
Are you looking for pprint.pformat?
Something like this:
import pprint, StringIO
s = StringIO.StringIO()
pprint.pprint(some_object, s)
print s.getvalue() # displays the string
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