Package: jsonpath-python
jsonpath-pythonFeaturesJSONPath SyntaxOperatorsExamplesSelect FieldsRecursive DescentSliceFilter ExpressionSorter ExpressionField-Extractor ExpressionAppendix: Example JSON data:Todo Listjsonpath-pythonA more powerful JSONPath implementation in modern python.FeaturesLight. (No need to install third-party dependencies.)Support filter operator, including multi-selection, inverse-selection filtering.Support sorter operator, including sorting by multiple fields, ascending and descending order.Support basic semantics of JSONPath.Support output modes: VALUE, PATH.Support embedded syntax.Support user-defined function.Support parent operator.Installationpipinstalljsonpath-python# import>>>fromjsonpathimportJSONPathJSONPath SyntaxThe JSONPath syntax in this project borrows fromJSONPath - XPath for JSONand ismodifiedandextendedon it.OperatorsOperatorDescription$the root object/element@the current object/element.or[]child operator..recursive descent*wildcard''(Experimental) wrap field with special character: dots(.) and space ().start:end:steparray slice operator (It's same as the slice in python)?()applies a filter expression/()applies a sorter expression()applies a field-extractor expressionExamplesBefore running the following example, please import this module and the example data:>>>fromjsonpathimportJSONPath# For the data used in the following example, please refer to the Appendix part.Select FieldsSelect a field:>>>JSONPath("$.book").parse(data)[[{'category':'reference','author':'Nigel Rees','title':'Sayings of the Century','price':8.95,'brand':{'version':'v1.0.0'}},{'category':'fiction','author':'Evelyn Waugh','title':'Sword of Honour','price':12.99,'brand':{'version':'v0.0.1'}},{'category':'fiction','author':'Herman Melville','title':'Moby Dick','isbn':'0-553-21311-3','price':8.99,'brand':{'version':'v1.0.2'}},{'category':'fiction','author':'J. R. R. Tolkien','title':'The Lord of the Rings','isbn':'0-395-19395-8','price':22.99,'brand':{'version':'v1.0.3'}}]]>>>JSONPath("$[book]").parse(data)[[{'category':'reference','author':'Nigel Rees','title':'Sayings of the Century','price':8.95,'brand':{'version':'v1.0.0'}},{'category':'fiction','author':'Evelyn Waugh','title':'Sword of Honour','price':12.99,'brand':{'version':'v0.0.1'}},{'category':'fiction','author':'Herman Melville','title':'Moby Dick','isbn':'0-553-21311-3','price':8.99,'brand':{'version':'v1.0.2'}},{'category':'fiction','author':'J. R. R. Tolkien','title':'The Lord of the Rings','isbn':'0-395-19395-8','price':22.99,'brand':{'version':'v1.0.3'}}]](Experimental) Select a field with special character: dots(.) and space ().>>>JSONPath("$.'a.b c'").parse(data)['a.b c']>>>JSONPath("$['a.b c']").parse(data)['a.b c']Select multiple fields:>>>JSONPath("$[bicycle,scores]").parse(data)[{'color':'red','price':19.95},{'math':{'score':100,'avg':60},'english':{'score':95,'avg':80},'physic':{'score':90,'avg':70},'chemistry':{'score':85,'avg':80},'chinese':{'score':60,'avg':75}}]Select all fields using wildcard*:>>>JSONPath("$.*").parse(data)['a.b c',[{'category':'reference','author':'Nigel Rees','title':'Sayings of the Century','price':8.95,'brand':{'version':'v1.0.0'}},{'category':'fiction','author':'Evelyn Waugh','title':'Sword of Honour','price':12.99,'brand':{'version':'v0.0.1'}},{'category':'fiction','author':'Herman Melville','title':'Moby Dick','isbn':'0-553-21311-3','price':8.99,'brand':{'version':'v1.0.2'}},{'category':'fiction','author':'J. R. R. Tolkien','title':'The Lord of the Rings','isbn':'0-395-19395-8','price':22.99,'brand':{'version':'v1.0.3'}}],{'color':'red','price':19.95},{'math':{'score':100,'avg':60},'english':{'score':95,'avg':80},'physic':{'score':90,'avg':70},'chemistry':{'score':85,'avg':80},'chinese':{'score':60,'avg':75}}]Recursive Descent>>>JSONPath("$..price").parse(data)[8.95,12.99,8.99,22.99,19.95]SliceSupport python-like slice.>>>JSONPath("$.book[1:3]").parse(data)[{'category':'fiction','author':'Evelyn Waugh','title':'Sword of Honour','price':12.99,'brand':{'version':'v0.0.1'}},{'category':'fiction','author':'Herman Melville','title':'Moby Dick','isbn':'0-553-21311-3','price':8.99,'brand':{'version':'v1.0.2'}}]>>>JSONPath("$.book[1:-1]").parse(data)[{'category':'fiction','author':'Evelyn Waugh','title':'Sword of Honour','price':12.99,'brand':{'version':'v0.0.1'}},{'category':'fiction','author':'Herman Melville','title':'Moby Dick','isbn':'0-553-21311-3','price':8.99,'brand':{'version':'v1.0.2'}}]>>>JSONPath("$.book[0:-1:2]").parse(data)[{'category':'reference','author':'Nigel Rees','title':'Sayings of the Century','price':8.95,'brand':{'version':'v1.0.0'}},{'category':'fiction','author':'Herman Melville','title':'Moby Dick','isbn':'0-553-21311-3','price':8.99,'brand':{'version':'v1.0.2'}}]>>>JSONPath("$.book[-1:1]").parse(data)[]>>>JSONPath("$.book[-1:-11:3]").parse(data)[]>>>JSONPath("$.book[:]").parse(data)[{'category':'reference','author':'Nigel Rees','title':'Sayings of the Century','price':8.95,'brand':{'version':'v1.0.0'}},{'category':'fiction','author':'Evelyn Waugh','title':'Sword of Honour','price':12.99,'brand':{'version':'v0.0.1'}},{'category':'fiction','author':'Herman Melville','title':'Moby Dick','isbn':'0-553-21311-3','price':8.99,'brand':{'version':'v1.0.2'}},{'category':'fiction','author':'J. R. R. Tolkien','title':'The Lord of the Rings','isbn':'0-395-19395-8','price':22.99,'brand':{'version':'v1.0.3'}}]>>>JSONPath("$.book[::-1]").parse(data)[{'category':'fiction','author':'J. R. R. Tolkien','title':'The Lord of the Rings','isbn':'0-395-19395-8','price':22.99,'brand':{'version':'v1.0.3'}},{'category':'fiction','author':'Herman Melville','title':'Moby Dick','isbn':'0-553-21311-3','price':8.99,'brand':{'version':'v1.0.2'}},{'category':'fiction','author':'Evelyn Waugh','title':'Sword of Honour','price':12.99,'brand':{'version':'v0.0.1'}},{'category':'reference','author':'Nigel Rees','title':'Sayings of the Century','price':8.95,'brand':{'version':'v1.0.0'}}]Filter ExpressionSupport all python comparison operators (==,!=,<,>,>=,<=), python membership operators (in,not in), python logical operators (and,or,not).>>>JSONPath("$.book[?(@.price>8 and @.price<9)].price").parse(data)[8.95,8.99]>>>JSONPath('$.book[?(@.category=="reference")].category').parse(data)['reference']>>>JSONPath('$.book[?(@.category!="reference" and @.price<9)].title').parse(data)['Moby Dick']>>>JSONPath('$.book[?(@.author=="Herman Melville" or @.author=="Evelyn Waugh")].author').parse(data)['Evelyn Waugh','Herman Melville']Note: You must use double quote("") instead of single quote('') to wrap the compared string, because single quote('') has another usage in this JSONPath syntax .Sorter ExpressionSupport sorting by multiple fields (using operator,) and reverse sort (using operator~).>>>JSONPath("$.book[/(price)].price").parse(data)[8.95,8.99,12.99,22.99]>>>JSONPath("$.book[/(~price)].price").parse(data)[22.99,12.99,8.99,8.95]>>>JSONPath("$.book[/(category,price)].price").parse(data)[8.99,12.99,22.99,8.95]>>>JSONPath("$.book[/(brand.version)].brand.version").parse(data)['v0.0.1','v1.0.0','v1.0.2','v1.0.3']>>>JSONPath("$.scores[/(score)].score").parse(data)[60,85,90,95,100]Field-Extractor ExpressionUsing(field1,field2,…,filedn)after a dict object to extract its fields.>>>JSONPath("$.scores[/(score)].(score)").parse(data)[{'score':60},{'score':85},{'score':90},{'score':95},{'score':100}]>>>JSONPath("$.book[/(category,price)].(title,price)").parse(data)[{'title':'Moby Dick','price':8.99},{'title':'Sword of Honour','price':12.99},{'title':'The Lord of the Rings','price':22.99},{'title':'Sayings of the Century','price':8.95}]Appendix: Example JSON data:data={"a.b c":"a.b c","book":[{"category":"reference","author":"Nigel Rees","title":"Sayings of the Century","price":8.95,"brand":{"version":"v1.0.0"}},{"category":"fiction","author":"Evelyn Waugh","title":"Sword of Honour","price":12.99,"brand":{"version":"v0.0.1"}},{"category":"fiction","author":"Herman Melville","title":"Moby Dick","isbn":"0-553-21311-3","price":8.99,"brand":{"version":"v1.0.2"}},{"category":"fiction","author":"J. R. R. Tolkien","title":"The Lord of the Rings","isbn":"0-395-19395-8","price":22.99,"brand":{"version":"v1.0.3"}}],"bicycle":{"color":"red","price":19.95},"scores":{"math":{"score":100,"avg":60},"english":{"score":95,"avg":80},"physic":{"score":90,"avg":70},"chemistry":{"score":85,"avg":80},"chinese":{"score":60,"avg":75}}}Todo ListSyntax and character set (refer to k8s)The name segment is required and must be 63 characters or less, beginning and ending with an alphanumeric character ([a-z0-9A-Z]) with dashes (-), underscores (_), dots (.), and alphanumerics between.