marshmallow | lightweight library for converting complex objects | Serialization library
kandi X-RAY | marshmallow Summary
kandi X-RAY | marshmallow Summary
A lightweight library for converting complex objects to and from simple Python datatypes.
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Top functions reviewed by kandi - BETA
- 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 .
marshmallow Key Features
marshmallow Examples and Code Snippets
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'
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
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
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
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
class ParentSchema(Schema):
child_name = fields.Function(data_key="child",
deserialize=lambda child: child["fname"])
data = {"child": {"fname": "John", "lname": "Doe"}}
ParentSchema().load(data)
@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
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
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
Trending Discussions on marshmallow
QUESTION
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 14:08Solved!..
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.
QUESTION
Is it possible to perform input data lookups with marshmallow
schemas ? The following does not work.. :
ANSWER
Answered 2022-Mar-09 at 14:02You can achieve this using fields.Function
:
QUESTION
I have 2 issues:
- Array split functionality as I cannot use it not sure why?
- Words are not highlighting.
ANSWER
Answered 2022-Feb-26 at 19:19So, 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.
QUESTION
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 17:04With the help of SQLAlchemy's Gitter community I was able to solve this. There were two issues that needed solving:
- 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. - The
_db
being yielded from thedb
fixture was inside the app context, which it shouldn't have been.
Updated conftest.py
:
QUESTION
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 13:09Instead of using Enum:
QUESTION
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 15:45There 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.
QUESTION
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 00:29Are you sourcing your venv before running test.py?
If so, then try this,
QUESTION
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 19:18The validates
decorator allows custom validation:
QUESTION
I have the following model Project:
...ANSWER
Answered 2021-Oct-20 at 15:20You 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:
QUESTION
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 12:43I 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
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
Install marshmallow
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.
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