marshmallow | lightweight library for converting complex objects | Serialization library

 by   marshmallow-code Python Version: 3.21.3 License: MIT

kandi X-RAY | marshmallow Summary

kandi X-RAY | marshmallow Summary

marshmallow is a Python library typically used in Utilities, Serialization applications. marshmallow has no bugs, it has build file available, it has a Permissive License and it has high support. However marshmallow has 1 vulnerabilities. You can install using 'pip install marshmallow' or download it from GitHub, PyPI.

A lightweight library for converting complex objects to and from simple Python datatypes.
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            kandi-support Support

              marshmallow has a highly active ecosystem.
              It has 6558 star(s) with 628 fork(s). There are 82 watchers for this library.
              There were 1 major release(s) in the last 6 months.
              There are 132 open issues and 1026 have been closed. On average issues are closed in 75 days. There are 30 open pull requests and 0 closed requests.
              It has a positive sentiment in the developer community.
              The latest version of marshmallow is 3.21.3

            kandi-Quality Quality

              marshmallow has 0 bugs and 0 code smells.

            kandi-Security Security

              marshmallow has 1 vulnerability issues reported (0 critical, 0 high, 1 medium, 0 low).
              marshmallow code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              marshmallow is licensed under the MIT License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              marshmallow releases are not available. You will need to build from source code and install.
              Deployable package is available in PyPI.
              Build file is available. You can build the component from source.
              It has 10999 lines of code, 1083 functions and 40 files.
              It has low code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed marshmallow and discovered the below as its top functions. This is intended to give you an instant insight into marshmallow implemented functionality, and help decide if they suit your requirements.
            • Deserialize data .
            • Returns the marshmallow schema .
            • Run the benchmark .
            • Register a schema class .
            • Returns a mapping of the registered hooks to the descriptor .
            • Recursively merge errors .
            • Decorate a function to validate a schema .
            • Decorator for setting a hook .
            • Deserialize value .
            • Set a value in a dictionary .
            Get all kandi verified functions for this library.

            marshmallow Key Features

            No Key Features are available at this moment for marshmallow.

            marshmallow Examples and Code Snippets

            Marshmallow schema
            pypidot img1Lines of Code : 10dot img1no licencesLicense : No License
            copy iconCopy
            class MarshmallowContextSchema(Schema):
                name = fields.String()
            
                @validates_schema
                def check_context(self, data):
                    self.context['marshmallow'] += 1
            
            @hug.get()
            def made_up_hello(test: MarshmallowContextSchema()):
                return 'hi'
              
            Enforcement Examples-The Nope Case
            Pythondot img2Lines of Code : 7dot img2License : Permissive (MIT)
            copy iconCopy
            PepeTheFrog🐸: "Hi, I am a literal actual nazi and I think white
            supremacists are quite fashionable."
            Patt: "NOOOOPE. OH NOPE NOPE."
            Alex: "JFC NO. NOPE. @KeeperOfCommitBits NOPE NOPE LOOK HERE"
            KeeperOfCommitBits: "👀 Nope. NOPE NOPE NOPE. 🔥"
            PepeT  
            Get It Now
            Pythondot img3Lines of Code : 0dot img3License : Permissive (MIT)
            copy iconCopy
            $ pip install -U marshmallow  
            marshmallow - flask example
            Pythondot img4Lines of Code : 98dot img4License : Permissive (MIT License)
            copy iconCopy
            import datetime
            
            from flask import Flask, request
            from flask_sqlalchemy import SQLAlchemy
            from sqlalchemy.exc import NoResultFound
            from marshmallow import Schema, fields, ValidationError, pre_load
            
            app = Flask(__name__)
            app.config["SQLALCHEMY_DATABAS  
            marshmallow - peewee example
            Pythondot img5Lines of Code : 94dot img5License : Permissive (MIT License)
            copy iconCopy
            import datetime as dt
            from functools import wraps
            
            from flask import Flask, request, g, jsonify
            import peewee as pw
            from marshmallow import (
                Schema,
                fields,
                validate,
                pre_load,
                post_dump,
                post_load,
                ValidationError,
            )
            
            ap  
            marshmallow - package json example
            Pythondot img6Lines of Code : 38dot img6License : Permissive (MIT License)
            copy iconCopy
            import sys
            import json
            from packaging import version
            from pprint import pprint
            
            from marshmallow import Schema, fields, INCLUDE, ValidationError
            
            
            class Version(fields.Field):
                """Version field that deserializes to a Version object."""
            
                def _d  
            Marshmallow field lookup on deserialisation
            Pythondot img7Lines of Code : 7dot img7License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            class ParentSchema(Schema):
                child_name = fields.Function(data_key="child",
                                             deserialize=lambda child: child["fname"])
            
            data = {"child": {"fname": "John", "lname": "Doe"}}
            ParentSchema().load(data)
            
            SQLAlchemy Joining a Session into an External Transaction Not Working as Expected
            Pythondot img8Lines of Code : 54dot img8License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            @pytest.fixture(scope="session")
            def db(app: Flask, request):
                """
                Returns session-wide initialised database.
                """
                with app.app_context():
                    _db.drop_all()
                    _db.create_all()
            
                    db_data.initialize_common_dat
            copy iconCopy
            from sqlalchemy.sql import func
            
            with Session() as session:
                # Model here is the orm Model, you could also do something similar
                # using sqlalchemy's core layer.
                cursor_result = session.query(Model).filter(Model.checkdate == func
            POST method in flask + mysql
            Pythondot img10Lines of Code : 15dot img10License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            class UsersSchema(SQLAlchemySchema):
                class Meta(SQLAlchemySchema.Meta):
                    model = User
                    sql_session = db.session
            
                id = fields.Number(dump_only=True)
                firstname = fields.String(required=True)
                lastname = fields.St

            Community Discussions

            QUESTION

            Firebase crashlytics not able to read crash reports
            Asked 2022-Apr-11 at 14:08

            I have configured crashlytics as per Firebase Documentation https://firebase.google.com/docs/crashlytics/get-started?platform=android. But crash reports not generated and uploaded to server.

            Kindly refer my build details.

            Here is our project-level build.gradle

            ...

            ANSWER

            Answered 2022-Apr-11 at 14:08

            Solved!..
            There was another utility logger library initialized in the application class that prevented crashlytics from collecting log. https://github.com/hypertrack/hyperlog-android

            Also the initialization & manifest part is not necessary unless you want to explicitly enable/disable crashlytics working.

            Source https://stackoverflow.com/questions/71815836

            QUESTION

            Marshmallow field lookup on deserialisation
            Asked 2022-Mar-09 at 14:02

            Is it possible to perform input data lookups with marshmallow schemas ? The following does not work.. :

            ...

            ANSWER

            Answered 2022-Mar-09 at 14:02

            You can achieve this using fields.Function:

            Source https://stackoverflow.com/questions/71410036

            QUESTION

            Highlight the word in array
            Asked 2022-Feb-26 at 20:41

            I have 2 issues:

            1. Array split functionality as I cannot use it not sure why?
            2. Words are not highlighting.

            ...

            ANSWER

            Answered 2022-Feb-26 at 19:19

            So, there are a few issues. I assume you changed the code for testing because you're not calling the function selectWord() anywhere (and the element is commented out).

            You cannot use .split('') because that breaks strings into individual characters, not words, so everything has a length of 1. You need to change both your split and join to be .split(' ') and .join(' ').

            Please also note, your text variable is an array, not a DOM object. Therefore it does not posses the innerHTML and innerText properties

            The correct script would be.

            Source https://stackoverflow.com/questions/71279559

            QUESTION

            SQLAlchemy Joining a Session into an External Transaction Not Working as Expected
            Asked 2022-Feb-23 at 17:04

            I'm working on rewriting the test suite for a large application using pytest and looking to have isolation between each test function. What I've noticed is, multiple calls to commit inside a SAVEPOINT are causing records to be entered into the DB. I've distilled out as much code as possible for the following example:

            init.py

            ...

            ANSWER

            Answered 2022-Feb-23 at 17:04

            With the help of SQLAlchemy's Gitter community I was able to solve this. There were two issues that needed solving:

            1. The after_transaction_end event was being registered for each individual test but not removed after the test ended. Because of this multiple events were being invoked between each test.
            2. The _db being yielded from the db fixture was inside the app context, which it shouldn't have been.

            Updated conftest.py:

            Source https://stackoverflow.com/questions/71186875

            QUESTION

            Flask-Restx not converting enum field type to JSON
            Asked 2021-Dec-29 at 09:53

            I need help with Enum field type as it is not accepted by Swagger and I am getting error message **TypeError: Object or Type eGameLevel is not JSON serializable**. Below is the complete set of code for table. Complete set of code with DB table and sqlalchemy settings is provided. I already tried it with Marshmallow-Enum Flask package and it didn't worked. Looking for kind help with some explanation about the solution so I can learn it well. :-)

            I am using MySQL with the Flask. In Postgres its pretty easy to manage all the choice fields. All I need is a working example or a link to repository where MySQL choice fields are showing up in swagger drop down.

            My Model: ...

            ANSWER

            Answered 2021-Dec-26 at 13:09

            Instead of using Enum:

            Source https://stackoverflow.com/questions/70388650

            QUESTION

            Is there a way for testing for uniqueness of a field in a collection of records in marshmallow
            Asked 2021-Dec-14 at 15:45

            Is there a standard way to validate the uniqueness of a field in a record upon loading?

            For example, if validating for a unique id in the list below, the last two records in this structure would trigger a failure.

            ...

            ANSWER

            Answered 2021-Dec-14 at 15:45

            There is no standard way as of today. The closest to a conversation about this would be in this PR: https://github.com/marshmallow-code/marshmallow/pull/1793.

            It is not that hard to implement in your own code but we haven't been able yet to come up with a generic enough implementation.

            Source https://stackoverflow.com/questions/69839559

            QUESTION

            no module named "web3" eventhough i installed web3.py (i am using a venv)
            Asked 2021-Nov-22 at 00:29
            pip freeze output:
            aiohttp==3.8.1
            aiosignal==1.2.0
            alembic==1.7.5
            aniso8601==9.0.1
            async-timeout==4.0.1
            attrs==21.2.0
            base58==2.1.1
            bitarray==1.2.2
            certifi==2021.10.8
            charset-normalizer==2.0.7
            click==8.0.3
            cytoolz==0.11.2
            eth-abi==2.1.1
            eth-account==0.5.6
            eth-hash==0.3.2
            eth-keyfile==0.5.1
            eth-keys==0.3.3
            eth-rlp==0.2.1
            eth-typing==2.2.2
            eth-utils==1.10.0
            Flask==2.0.2
            flask-marshmallow==0.14.0
            Flask-Migrate==3.1.0
            Flask-RESTful==0.3.9
            Flask-Script==2.0.6
            Flask-SQLAlchemy==2.5.1
            frozenlist==1.2.0
            hexbytes==0.2.2
            idna==3.3
            ipfshttpclient==0.8.0a2
            itsdangerous==2.0.1
            Jinja2==3.0.3
            jsonschema==3.2.0
            lru-dict==1.1.7
            Mako==1.1.6
            MarkupSafe==2.0.1
            marshmallow==3.14.1
            marshmallow-sqlalchemy==0.26.1
            multiaddr==0.0.9
            multidict==5.2.0
            netaddr==0.8.0
            parsimonious==0.8.1
            protobuf==3.19.1
            psycopg2==2.9.2
            pycryptodome==3.11.0
            pyrsistent==0.18.0
            pytz==2021.3
            requests==2.26.0
            rlp==2.0.1
            six==1.16.0
            SQLAlchemy==1.4.27
            toolz==0.11.2
            typing_extensions==4.0.0
            urllib3==1.26.7
            varint==1.0.2
            web3==5.25.0
            websockets==9.1
            Werkzeug==2.0.2
            yarl==1.7.2
            
            ...

            ANSWER

            Answered 2021-Nov-22 at 00:29

            Are you sourcing your venv before running test.py?

            If so, then try this,

            Source https://stackoverflow.com/questions/70059478

            QUESTION

            Validating list elements are unique in marshmallow
            Asked 2021-Oct-21 at 22:16

            I would like to understand if I can use marshmallow validate function to check whether all elements in a list are unique.

            I have the following schema:

            ...

            ANSWER

            Answered 2021-Oct-21 at 19:18

            QUESTION

            DRF testing - create object with a many-to-many relation
            Asked 2021-Oct-20 at 15:20

            I have the following model Project:

            ...

            ANSWER

            Answered 2021-Oct-20 at 15:20

            You have specified your own serializer field. As a result, it will no longer look at the blank=True part, and by default serializer fields are required. You can make these optional with:

            Source https://stackoverflow.com/questions/69648631

            QUESTION

            ImportError: No module named 'pystan'on MacOS
            Asked 2021-Oct-07 at 12:43

            I installed pystan on a python virtual environment using pip install pystan. I checked the module is listed with pip freeze. but when i run a code with import pystan. It gives the error that the module is not found.

            below is the output from pip freeze command. It shows pystan version 3.3.0

            ...

            ANSWER

            Answered 2021-Oct-07 at 12:43

            I found the solution at this link

            Apparently the most recent versions of pystan (>= 3) use stan instead of pystan in the import statement, whereas in earlier versions it was just pystan.

            if you install pystan (>=3) use import stan instead of import pystan

            Source https://stackoverflow.com/questions/69481156

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            In the marshmallow library before 2.15.1 and 3.x before 3.0.0b9 for Python, the schema "only" option treats an empty list as implying no "only" option, which allows a request that was intended to expose no fields to instead expose all fields (if the schema is being filtered dynamically using the "only" option, and there is a user role that produces an empty value for "only").

            Install marshmallow

            You can install using 'pip install marshmallow' or download it from GitHub, PyPI.
            You can use marshmallow like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.

            Support

            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
            Find more information at:

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            Install
          • PyPI

            pip install marshmallow

          • CLONE
          • HTTPS

            https://github.com/marshmallow-code/marshmallow.git

          • CLI

            gh repo clone marshmallow-code/marshmallow

          • sshUrl

            git@github.com:marshmallow-code/marshmallow.git

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