PrettyPrinter
Syntax-highlighting, declarative and composable pretty printer for Python 3.5+
pip install prettyprinter- Drop in replacement for the standard library
pprint: just renamepprinttoprettyprinterin your imports. - Uses a modified Wadler-Leijen layout algorithm for optimal formatting
- Write pretty printers for your own types with a dead simple, declarative interface
Pretty print common Python values:
>>> from datetime import datetime
>>> from prettyprinter import pprint
>>> pprint({'beautiful output': datetime.now()})
{
'beautiful output': datetime.datetime(
year=2017,
month=12,
day=12,
hour=0,
minute=43,
second=4,
microsecond=752094
)
}As well as your own, without any manual string formatting:
>>> class MyClass:
... def __init__(self, one, two):
... self.one = one
... self.two = two
>>> from prettyprinter import register_pretty, pretty_call
>>> @register_pretty(MyClass)
... def pretty_myclass(value, ctx):
... return pretty_call(ctx, MyClass, one=value.one, two=value.two)
>>> pprint(MyClass((1, 2, 3), {'a': 1, 'b': 2}))
MyClass(one=(1, 2, 3), two={'a': 1, 'b': 2})
>>> pprint({'beautiful output': datetime.now(), 'beautiful MyClass instance': MyClass((1, 2, 3), {'a': 1, 'b': 2})})
{
'beautiful MyClass instance': MyClass(
one=(1, 2, 3),
two={'a': 1, 'b': 2}
),
'beautiful output': datetime.datetime(
year=2017,
month=12,
day=12,
hour=0,
minute=44,
second=18,
microsecond=384219
)
}Comes packaged with the following pretty printer definitions, which you can enable by calling prettyprinter.install_extras():
datetime- (installed by default)enum- (installed by default)pytz- (installed by default)dataclasses- any new class you create will be pretty printed automaticallyattrs- pretty prints any new class you create withattrsdjango- pretty prints your Models and QuerySetsnumpy- pretty prints numpy scalars with explicit typesrequests- pretty prints Requests, Responses, Sessions, and more from therequestslibrary
- Free software: MIT license
- Documentation: Documentation.