python deepdiff和pprint

python deepdiff 官方文档：https://pypi.org/project/deepdiff/

deepdiff的作用详解：

r""" DeepDiff comments Deep Difference of dictionaries, iterables, strings and almost any other object. It will recursively look for all the changes. Parameters t1 : A dictionary, list, string or any python object that has __dict__ or __slots__ This is the first item to be compared to the second item t2 : dictionary, list, string or almost any python object that has __dict__ or __slots__ The second item is to be compared to the first one ignore_order : Boolean, defalt=False ignores orders for iterables. Note that if you have iterables contatining any unhashable, ignoring order can be expensive. Ignoring order for an iterable containing any unhashable will include duplicates if there are any in the iterable. Ignoring order for an iterable containing only hashables will not include duplicates in the iterable. Returns A DeepDiff object that has already calculated the difference of the 2 items. Supported data types int, string, unicode, dictionary, list, tuple, set, frozenset, OrderedDict, NamedTuple and custom objects! Examples Importing >>> from base.deepdiff import DeepDiff >>> from pprint import pprint >>> from __future__ import print_function # In case running on Python 2 Same object returns empty >>> t1 = {1:1, 2:2, 3:3} >>> t2 = t1 >>> print(DeepDiff(t1, t2)) {} Type of an item has changed >>> t1 = {1:1, 2:2, 3:3} >>> t2 = {1:1, 2:"2", 3:3} >>> pprint(DeepDiff(t1, t2), indent=2) { 'type_changes': { 'root[2]': { 'newtype': 
  
    , 'newvalue': '2', 'oldtype': 
   
     , 'oldvalue': 2}}} Value of an item has changed >>> t1 = {1:1, 2:2, 3:3} >>> t2 = {1:1, 2:4, 3:3} >>> pprint(DeepDiff(t1, t2), indent=2) {'values_changed': {'root[2]': {'newvalue': 4, 'oldvalue': 2}}} Item added and/or removed >>> t1 = {1:1, 2:2, 3:3, 4:4} >>> t2 = {1:1, 2:4, 3:3, 5:5, 6:6} >>> ddiff = DeepDiff(t1, t2) >>> pprint (ddiff) {'dic_item_added': ['root[5]', 'root[6]'], 'dic_item_removed': ['root[4]'], 'values_changed': {'root[2]': {'newvalue': 4, 'oldvalue': 2}}} String difference >>> t1 = {1:1, 2:2, 3:3, 4:{"a":"hello", "b":"world"}} >>> t2 = {1:1, 2:4, 3:3, 4:{"a":"hello", "b":"world!"}} >>> ddiff = DeepDiff(t1, t2) >>> pprint (ddiff, indent = 2) { 'values_changed': { 'root[2]': {'newvalue': 4, 'oldvalue': 2}, "root[4]['b']": { 'newvalue': 'world!', 'oldvalue': 'world'}}} String difference 2 >>> t1 = {1:1, 2:2, 3:3, 4:{"a":"hello", "b":"world!\nGoodbye!\n1\n2\nEnd"}} >>> t2 = {1:1, 2:2, 3:3, 4:{"a":"hello", "b":"world\n1\n2\nEnd"}} >>> ddiff = DeepDiff(t1, t2) >>> pprint (ddiff, indent = 2) { 'values_changed': { "root[4]['b']": { 'diff': '--- \n' '+++ \n' '@@ -1,5 +1,4 @@\n' '-world!\n' '-Goodbye!\n' '+world\n' ' 1\n' ' 2\n' ' End', 'newvalue': 'world\n1\n2\nEnd', 'oldvalue': 'world!\n' 'Goodbye!\n' '1\n' '2\n' 'End'}}} >>> >>> print (ddiff['values_changed']["root[4]['b']"]["diff"]) --- +++ @@ -1,5 +1,4 @@ -world! -Goodbye! +world 1 2 End Type change >>> t1 = {1:1, 2:2, 3:3, 4:{"a":"hello", "b":[1, 2, 3]}} >>> t2 = {1:1, 2:2, 3:3, 4:{"a":"hello", "b":"world\n\n\nEnd"}} >>> ddiff = DeepDiff(t1, t2) >>> pprint (ddiff, indent = 2) { 'type_changes': { "root[4]['b']": { 'newtype': 
    
      , 'newvalue': 'world\n\n\nEnd', 'oldtype': 
     
       , 'oldvalue': [1, 2, 3]}}} List difference >>> t1 = {1:1, 2:2, 3:3, 4:{"a":"hello", "b":[1, 2, 3, 4]}} >>> t2 = {1:1, 2:2, 3:3, 4:{"a":"hello", "b":[1, 2]}} >>> ddiff = DeepDiff(t1, t2) >>> pprint (ddiff, indent = 2) {'iterable_item_removed': {"root[4]['b'][2]": 3, "root[4]['b'][3]": 4}} List difference 2: >>> t1 = {1:1, 2:2, 3:3, 4:{"a":"hello", "b":[1, 2, 3]}} >>> t2 = {1:1, 2:2, 3:3, 4:{"a":"hello", "b":[1, 3, 2, 3]}} >>> ddiff = DeepDiff(t1, t2) >>> pprint (ddiff, indent = 2) { 'iterable_item_added': {"root[4]['b'][3]": 3}, 'values_changed': { "root[4]['b'][1]": {'newvalue': 3, 'oldvalue': 2}, "root[4]['b'][2]": {'newvalue': 2, 'oldvalue': 3}}} List difference ignoring order or duplicates: (with the same dictionaries as above) >>> t1 = {1:1, 2:2, 3:3, 4:{"a":"hello", "b":[1, 2, 3]}} >>> t2 = {1:1, 2:2, 3:3, 4:{"a":"hello", "b":[1, 3, 2, 3]}} >>> ddiff = DeepDiff(t1, t2, ignore_order=True) >>> print (ddiff) {} List that contains dictionary: >>> t1 = {1:1, 2:2, 3:3, 4:{"a":"hello", "b":[1, 2, {1:1, 2:2}]}} >>> t2 = {1:1, 2:2, 3:3, 4:{"a":"hello", "b":[1, 2, {1:3}]}} >>> ddiff = DeepDiff(t1, t2) >>> pprint (ddiff, indent = 2) { 'dic_item_removed': ["root[4]['b'][2][2]"], 'values_changed': {"root[4]['b'][2][1]": {'newvalue': 3, 'oldvalue': 1}}} Sets: >>> t1 = {1, 2, 8} >>> t2 = {1, 2, 3, 5} >>> ddiff = DeepDiff(t1, t2) >>> pprint (DeepDiff(t1, t2)) {'set_item_added': ['root[3]', 'root[5]'], 'set_item_removed': ['root[8]']} Named Tuples: >>> from collections import namedtuple >>> Point = namedtuple('Point', ['x', 'y']) >>> t1 = Point(x=11, y=22) >>> t2 = Point(x=11, y=23) >>> pprint (DeepDiff(t1, t2)) {'values_changed': {'root.y': {'newvalue': 23, 'oldvalue': 22}}} 
      
     
    
  

例子：

#!/usr/bin/env python # -*- coding: UTF-8 -*- '''================================================= @Project -> File ： -> diff_test @IDE ：PyCharm @Author ：zhangjun.xue.o @Date ：2019-09-17 10:07 @Desc ： ==================================================''' from deepdiff import DeepDiff from pprint import pprint t1 = {"one": 1, "two": 2, "three": 3} t2 = {"one": 1, "two": 4, "three": "6"} if __name__ == "__main__": res = DeepDiff(t1, t2) pprint(res) 

输出：

{'type_changes': {"root['three']": {'newtype': 
  
    , 'newvalue': '6', 'oldtype': 
   
     , 'oldvalue': 3}}, 'values_changed': {"root['two']": {'newvalue': 4, 'oldvalue': 2}}}