pypi? Nope, never heard of that website before. Sorry.
https://github.com/google/diff-match-patch/issues/17
/r/Python
https://redd.it/8s0ktr
https://github.com/google/diff-match-patch/issues/17
/r/Python
https://redd.it/8s0ktr
GitHub
pypi release out of date · Issue #17 · google/diff-match-patch
Hi, The version of diff-match-patch on pypi is pretty out of date (2012-2013): https://pypi.org/project/diff-match-patch/ Do you have the ability to update this?
What's next after basic CRUD?
Hello guys,
It's me again with another dumb question.
I've "finished" few basic apps in my project. I have working CRUD for each app/model and I feel lost now. I'd like to add few things, but I'm not sure what's the best next step
\- Dashboard with charts, maybe few basic forms to add quickly object for specific model
\- Few simple "buttons" to do special actions eg. quickly increase/decrease amount in IntegerField
\- Ability to use custom script (It takes list of IDs and create pdfs of chosen ids), smth like form in which i could add ids and amounts of each id to pass it to the script
What should I do? Things like this require some frontend tools like react? Or can I do it with plain Django?
If I have to use frontend framework, which is better (for project and future job), react or vue?
If I use frontend framework, do I need to create REST API for each app in my project?
Thanks for any advices!
/r/djangolearning
https://redd.it/8s276j
Hello guys,
It's me again with another dumb question.
I've "finished" few basic apps in my project. I have working CRUD for each app/model and I feel lost now. I'd like to add few things, but I'm not sure what's the best next step
\- Dashboard with charts, maybe few basic forms to add quickly object for specific model
\- Few simple "buttons" to do special actions eg. quickly increase/decrease amount in IntegerField
\- Ability to use custom script (It takes list of IDs and create pdfs of chosen ids), smth like form in which i could add ids and amounts of each id to pass it to the script
What should I do? Things like this require some frontend tools like react? Or can I do it with plain Django?
If I have to use frontend framework, which is better (for project and future job), react or vue?
If I use frontend framework, do I need to create REST API for each app in my project?
Thanks for any advices!
/r/djangolearning
https://redd.it/8s276j
reddit
r/djangolearning - What's next after basic CRUD?
7 votes and 4 so far on reddit
Overiq Djangobin - A project based tutorial for Django 1.11
Hello everyone!
I have just finished writing Django 1.11 tutorial, where we will build a pastebin application called djangobin.
Tutorial link: https://overiq.com/django/1.11/intro-to-django/
Live Demo: http://overiq.pythonanywhere.com/
Github source: https://github.com/overiq/djangobin
/r/django
https://redd.it/8rz0h4
Hello everyone!
I have just finished writing Django 1.11 tutorial, where we will build a pastebin application called djangobin.
Tutorial link: https://overiq.com/django/1.11/intro-to-django/
Live Demo: http://overiq.pythonanywhere.com/
Github source: https://github.com/overiq/djangobin
/r/django
https://redd.it/8rz0h4
i have prebinned data. how can i use pandas and seaborn to display histograms based on those bins
see title.
I have csv files of this form
mass (g),count
0-499,600
500-999,2244
1000-1499,3245
...
4500-4999,2095
5000-8165,201
i have 6 such csv files and i'd like to see 6 histograms. the fact that the data is prebinned is giving me issues. i'd appreciate a hint! thanks for your time.
/r/pystats
https://redd.it/8s5tty
see title.
I have csv files of this form
mass (g),count
0-499,600
500-999,2244
1000-1499,3245
...
4500-4999,2095
5000-8165,201
i have 6 such csv files and i'd like to see 6 histograms. the fact that the data is prebinned is giving me issues. i'd appreciate a hint! thanks for your time.
/r/pystats
https://redd.it/8s5tty
reddit
r/pystats - i have prebinned data. how can i use pandas and seaborn to display histograms based on those bins
1 votes and 2 so far on reddit
MozartFlow: Doing analysis on audio like gender classification, instrument recognition, voice separation, genre classification | Not completed; If anyone interested, do collab.
https://github.com/techcentaur/MozartFlow
/r/Python
https://redd.it/8s6ll7
https://github.com/techcentaur/MozartFlow
/r/Python
https://redd.it/8s6ll7
GitHub
techcentaur/MozartFlow
MozartFlow - Using machine learning for the study of music.
Need help with chart.js and django.
Im using chart.js to display charts in my django website. I am also using an API call that then parses out JSON data for the chart using python. Does anyone then know how to use an axios call within javascript to call and display the data through my index.html file?
/r/django
https://redd.it/8s89tb
Im using chart.js to display charts in my django website. I am also using an API call that then parses out JSON data for the chart using python. Does anyone then know how to use an axios call within javascript to call and display the data through my index.html file?
/r/django
https://redd.it/8s89tb
reddit
r/django - Need help with chart.js and django.
0 votes and 1 so far on reddit
What's everyone working on this week?
Tell /r/python what you're working on this week! You can be bragging, grousing, sharing your passion, or explaining your pain. Talk about your current project or your pet project; whatever you want to share.
/r/Python
https://redd.it/8s95kt
Tell /r/python what you're working on this week! You can be bragging, grousing, sharing your passion, or explaining your pain. Talk about your current project or your pet project; whatever you want to share.
/r/Python
https://redd.it/8s95kt
reddit
r/Python - What's everyone working on this week?
1 votes and 2 so far on reddit
queryset appears empty in debugger during testing, but not in console
Hello,
I'm testing REST APIs with `rest_framework.test.APITestCase`, using their client for making requests and `model_mommy` for creating objects in the `setUp()` method.
The general working is quite simple: the view is supposed to fetch a User and an object, and assign permissions for the former to the latter by means of django-guardian's `assign_perm`; the test creates a user and a group in the `setUp` method, then the actual test performs a POST passing their pk's as payload.
The issue I'm seeing, is that when the `User.objects.filter(pk__in=people_ids)` instruction is executed, the value I see in the debugger is that of an empty queryset, while if I type the exact same line in a console connected to the same session as the debugger I see the actual value being found.
Then the view gets to the `assign_perm` instruction, and it crashes with an `IndexError: list index out of range` error on the first evaluation of the queryset itself, which happens on the for loop at line 247 in the file core.py of the django-guardian library.
Is there something obvious that I should be looking at, because I really cannot wrap my head around this.
(django 1.11.13)
Thanks
/r/django
https://redd.it/8s9y48
Hello,
I'm testing REST APIs with `rest_framework.test.APITestCase`, using their client for making requests and `model_mommy` for creating objects in the `setUp()` method.
The general working is quite simple: the view is supposed to fetch a User and an object, and assign permissions for the former to the latter by means of django-guardian's `assign_perm`; the test creates a user and a group in the `setUp` method, then the actual test performs a POST passing their pk's as payload.
The issue I'm seeing, is that when the `User.objects.filter(pk__in=people_ids)` instruction is executed, the value I see in the debugger is that of an empty queryset, while if I type the exact same line in a console connected to the same session as the debugger I see the actual value being found.
Then the view gets to the `assign_perm` instruction, and it crashes with an `IndexError: list index out of range` error on the first evaluation of the queryset itself, which happens on the for loop at line 247 in the file core.py of the django-guardian library.
Is there something obvious that I should be looking at, because I really cannot wrap my head around this.
(django 1.11.13)
Thanks
/r/django
https://redd.it/8s9y48
reddit
r/django - queryset appears empty in debugger during testing, but not in console
1 votes and 0 so far on reddit
Made a custom user, then tried to createsuperuser but got TypeError: hasattr(): attribute name must be string
I've created a new Django project and the first thing I did was create a custom user with the help of Django docs: https://docs.djangoproject.com/en/2.0/topics/auth/customizing/
After I wrote all the code for a custom user, and after I did **makemigrations** and **migrate** for the first time in this Django project, I tried to create a superuser while my virtual env is active by writing:
python manage.py createsuperuser
But it gave me this error:
> TypeError: hasattr(): attribute name must be string
I wrote all the custom user code in an app called **accounts**.
In the **settings** file I added 'accounts' to the INSTALLED_APPS list, and added in the bottom this line:
AUTH_USER_MODEL = 'accounts.CustomUser'
Here's all my source code, starting with models.py:
from django.db import models
from django.contrib.auth.models import AbstractBaseUser, BaseUserManager, PermissionsMixin
class CustomUserManager(BaseUserManager):
def create_user(self, email, password=None):
if not email:
raise ValueError("Users must have an email address")
if not password:
raise ValueError("Users must have a password")
user = self.model(
email = self.normalize_email(email)
)
user.set_password(password)
user.save(using=self._db)
return user
def create_staffuser(self, email, password, first_name, last_name):
if not first_name:
raise ValueError("Staff and superusers must have a first name")
if not last_name:
raise ValueError("Staff and superusers must have a last name")
user = self.create_user(
email,
password=password
)
user.first_name = first_name
user.last_name = last_name
user.is_staff = True
user.save(using=self._db)
return user
def create_superuser(self, email, password, first_name, last_name):
user = self.create_staffuser(
email,
password=password,
first_name=first_name,
last_name=last_name
)
user.is_admin = True
user.is_superuser = True # Not sure if this is needed
user.save(using=self._db)
return user
class CustomUser(AbstractBaseUser, PermissionsMixin):
email = models.EmailField(null=True, max_length=80, unique=True)
USERNAME_FIELD = 'email'
is_active = models.BooleanField(default=True)
is_admin = models.BooleanField(default=False)
is_staff = models.BooleanField(default=False)
first_name = models.CharField(max_length=25, blank=True, null=True)
last_name = models.CharField(max_length=25, blank=True, null=True)
date_joined = models.DateField(auto_now_add=True, null=True)
REQUIRED_FIELDS = [first_name, last_name]
objects = CustomUserManager()
def __str__(self):
return self.email
def get_short_name():
return first_name
def get_full_name():
return first_name + ' ' + last_name
Then I wrote this in forms.py:
from django import forms
from django.contrib.auth.forms import ReadOnlyPasswordHashField
from .models import CustomUser
class UserCreationForm(forms.ModelForm):
"""A form for creating new users. Includes all the required
fields, plus a repeated password."""
password1 = forms.CharField(label='Password', widget=forms.PasswordInput)
password2 = forms.CharField(label='Password confirmation', widget=forms.PasswordInput)
class Meta:
model = CustomUser
fields = ('email', 'first_name', 'last_name')
def clean_password2(self
I've created a new Django project and the first thing I did was create a custom user with the help of Django docs: https://docs.djangoproject.com/en/2.0/topics/auth/customizing/
After I wrote all the code for a custom user, and after I did **makemigrations** and **migrate** for the first time in this Django project, I tried to create a superuser while my virtual env is active by writing:
python manage.py createsuperuser
But it gave me this error:
> TypeError: hasattr(): attribute name must be string
I wrote all the custom user code in an app called **accounts**.
In the **settings** file I added 'accounts' to the INSTALLED_APPS list, and added in the bottom this line:
AUTH_USER_MODEL = 'accounts.CustomUser'
Here's all my source code, starting with models.py:
from django.db import models
from django.contrib.auth.models import AbstractBaseUser, BaseUserManager, PermissionsMixin
class CustomUserManager(BaseUserManager):
def create_user(self, email, password=None):
if not email:
raise ValueError("Users must have an email address")
if not password:
raise ValueError("Users must have a password")
user = self.model(
email = self.normalize_email(email)
)
user.set_password(password)
user.save(using=self._db)
return user
def create_staffuser(self, email, password, first_name, last_name):
if not first_name:
raise ValueError("Staff and superusers must have a first name")
if not last_name:
raise ValueError("Staff and superusers must have a last name")
user = self.create_user(
email,
password=password
)
user.first_name = first_name
user.last_name = last_name
user.is_staff = True
user.save(using=self._db)
return user
def create_superuser(self, email, password, first_name, last_name):
user = self.create_staffuser(
email,
password=password,
first_name=first_name,
last_name=last_name
)
user.is_admin = True
user.is_superuser = True # Not sure if this is needed
user.save(using=self._db)
return user
class CustomUser(AbstractBaseUser, PermissionsMixin):
email = models.EmailField(null=True, max_length=80, unique=True)
USERNAME_FIELD = 'email'
is_active = models.BooleanField(default=True)
is_admin = models.BooleanField(default=False)
is_staff = models.BooleanField(default=False)
first_name = models.CharField(max_length=25, blank=True, null=True)
last_name = models.CharField(max_length=25, blank=True, null=True)
date_joined = models.DateField(auto_now_add=True, null=True)
REQUIRED_FIELDS = [first_name, last_name]
objects = CustomUserManager()
def __str__(self):
return self.email
def get_short_name():
return first_name
def get_full_name():
return first_name + ' ' + last_name
Then I wrote this in forms.py:
from django import forms
from django.contrib.auth.forms import ReadOnlyPasswordHashField
from .models import CustomUser
class UserCreationForm(forms.ModelForm):
"""A form for creating new users. Includes all the required
fields, plus a repeated password."""
password1 = forms.CharField(label='Password', widget=forms.PasswordInput)
password2 = forms.CharField(label='Password confirmation', widget=forms.PasswordInput)
class Meta:
model = CustomUser
fields = ('email', 'first_name', 'last_name')
def clean_password2(self
):
# Check that the two password entries match
password1 = self.cleaned_data.get("password1")
password2 = self.cleaned_data.get("password2")
if password1 and password2 and password1 != password2:
raise forms.ValidationError("Passwords don't match")
return password2
def save(self, commit=True):
# Save the provided password in hashed format
user = super().save(commit=False)
user.set_password(self.cleaned_data["password1"])
if commit:
user.save()
return user
class UserChangeForm(forms.ModelForm):
"""A form for updating users. Includes all the fields on
the user, but replaces the password field with admin's
password hash display field.
"""
password = ReadOnlyPasswordHashField()
class Meta:
model = CustomUser
fields = ('email', 'password', 'first_name', 'last_name', 'is_active', 'is_admin')
def clean_password(self):
# Regardless of what the user provides, return the initial value.
# This is done here, rather than on the field, because the
# field does not have access to the initial value
return self.initial["password"]
And in admin.py:
from django.contrib import admin
from django.contrib.auth.admin import UserAdmin as BaseUserAdmin
from .models import CustomUser
from .forms import UserCreationForm, UserChangeForm
class UserAdmin(BaseUserAdmin):
# The forms to add and change user instances
form = UserChangeForm
add_form = UserCreationForm
# The fields to be used in displaying the User model.
# These override the definitions on the base UserAdmin
# that reference specific fields on auth.User.
list_display = ('email', 'first_name', 'last_name', 'is_admin')
list_filter = ('is_admin',)
fieldsets = (
(None, {'fields': ('email', 'password')}),
('Personal info', {'fields': ('first_name', 'last_name',)}),
('Meta', {'fields': ('date_joined', 'last_login', 'is_active',)}),
('Permissions', {'fields': ('is_admin', 'is_staff',)}),
)
# add_fieldsets is not a standard ModelAdmin attribute. UserAdmin
# overrides get_fieldsets to use this attribute when creating a user.
add_fieldsets = (
(None, {
'classes': ('wide',),
'fields': ('email', 'first_name', 'last_name' 'password1', 'password2')}
),
)
search_fields = ('email', 'first_name')
ordering = ('email',)
filter_horizontal = ()
admin.site.register(CustomUser, UserAdmin)
This is the entire error traceback:
Traceback (most recent call last):
File "manage.py", line 15, in <module>
execute_from_command_line(sys.argv)
File "/home/impressive_response/Projects/project-root/project_env/lib/python3.6/site-packages/django/core/management/__init__.py", line 371, in execute_from_command_line
utility.execute()
File "/home/impressive_response/Projects/project-root/project_env/lib/python3.6/site-packages/django/core/management/__init__.py", line 365, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/home/impressive_response/Projects/project-root/project_env/lib/python3.6/site-packages/django/core/management/base.py", line 282, in run_from_argv
options = parser.parse_args(argv[2:])
File "/home/impressive_response/Projects/project-root/project_env/lib/python3.6/site-packages/django/core/management/base.py", line 54, in parse_args
return super().parse_args(args, namespace)
File "/usr/lib/python3.6/argparse.py", line 1739, in parse_args
args, argv = self.parse_known_args(args, namespace)
File "/usr/lib/python3.6/argparse.py", line 1760, in parse_known_args
if not hasattr(namespace, action.dest):
TypeError: hasattr(): attribute name must
# Check that the two password entries match
password1 = self.cleaned_data.get("password1")
password2 = self.cleaned_data.get("password2")
if password1 and password2 and password1 != password2:
raise forms.ValidationError("Passwords don't match")
return password2
def save(self, commit=True):
# Save the provided password in hashed format
user = super().save(commit=False)
user.set_password(self.cleaned_data["password1"])
if commit:
user.save()
return user
class UserChangeForm(forms.ModelForm):
"""A form for updating users. Includes all the fields on
the user, but replaces the password field with admin's
password hash display field.
"""
password = ReadOnlyPasswordHashField()
class Meta:
model = CustomUser
fields = ('email', 'password', 'first_name', 'last_name', 'is_active', 'is_admin')
def clean_password(self):
# Regardless of what the user provides, return the initial value.
# This is done here, rather than on the field, because the
# field does not have access to the initial value
return self.initial["password"]
And in admin.py:
from django.contrib import admin
from django.contrib.auth.admin import UserAdmin as BaseUserAdmin
from .models import CustomUser
from .forms import UserCreationForm, UserChangeForm
class UserAdmin(BaseUserAdmin):
# The forms to add and change user instances
form = UserChangeForm
add_form = UserCreationForm
# The fields to be used in displaying the User model.
# These override the definitions on the base UserAdmin
# that reference specific fields on auth.User.
list_display = ('email', 'first_name', 'last_name', 'is_admin')
list_filter = ('is_admin',)
fieldsets = (
(None, {'fields': ('email', 'password')}),
('Personal info', {'fields': ('first_name', 'last_name',)}),
('Meta', {'fields': ('date_joined', 'last_login', 'is_active',)}),
('Permissions', {'fields': ('is_admin', 'is_staff',)}),
)
# add_fieldsets is not a standard ModelAdmin attribute. UserAdmin
# overrides get_fieldsets to use this attribute when creating a user.
add_fieldsets = (
(None, {
'classes': ('wide',),
'fields': ('email', 'first_name', 'last_name' 'password1', 'password2')}
),
)
search_fields = ('email', 'first_name')
ordering = ('email',)
filter_horizontal = ()
admin.site.register(CustomUser, UserAdmin)
This is the entire error traceback:
Traceback (most recent call last):
File "manage.py", line 15, in <module>
execute_from_command_line(sys.argv)
File "/home/impressive_response/Projects/project-root/project_env/lib/python3.6/site-packages/django/core/management/__init__.py", line 371, in execute_from_command_line
utility.execute()
File "/home/impressive_response/Projects/project-root/project_env/lib/python3.6/site-packages/django/core/management/__init__.py", line 365, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/home/impressive_response/Projects/project-root/project_env/lib/python3.6/site-packages/django/core/management/base.py", line 282, in run_from_argv
options = parser.parse_args(argv[2:])
File "/home/impressive_response/Projects/project-root/project_env/lib/python3.6/site-packages/django/core/management/base.py", line 54, in parse_args
return super().parse_args(args, namespace)
File "/usr/lib/python3.6/argparse.py", line 1739, in parse_args
args, argv = self.parse_known_args(args, namespace)
File "/usr/lib/python3.6/argparse.py", line 1760, in parse_known_args
if not hasattr(namespace, action.dest):
TypeError: hasattr(): attribute name must
SQLAlchemy - How does the relationship() function work?
I've ripped this straight out of the mega tutorial:
class User(db.Model):
id = db.Column(db.Integer, primary_key = True)
posts = db.relationship('Post', backref = 'author', lazy = 'dynamic')
def __repr__(self):
return '<User {}>'.format(self.username)
class Post(db.Model):
id = db.Column(db.Integer, primary_key = True)
user_id = db.Column(db.Integer, db.ForeignKey('user.id'))
I looked at the SQLAlchemy documentation and I'm still having trouble deciphering this. When I run my shell and create a post authored by my first list in my user query, my post object correctly has a user_id of the user who authors that post. But How does it know this? Does the `ForeignKey` argument look at all my classes and and find the `id` field under user? If so, that much makes sense. But how exactly creating a relationship in the User class, and then Post class knowing to relate it's foreign key to the author of the Post is an enigma to me. Anyone care to explain please.
/r/flask
https://redd.it/8s2fmq
I've ripped this straight out of the mega tutorial:
class User(db.Model):
id = db.Column(db.Integer, primary_key = True)
posts = db.relationship('Post', backref = 'author', lazy = 'dynamic')
def __repr__(self):
return '<User {}>'.format(self.username)
class Post(db.Model):
id = db.Column(db.Integer, primary_key = True)
user_id = db.Column(db.Integer, db.ForeignKey('user.id'))
I looked at the SQLAlchemy documentation and I'm still having trouble deciphering this. When I run my shell and create a post authored by my first list in my user query, my post object correctly has a user_id of the user who authors that post. But How does it know this? Does the `ForeignKey` argument look at all my classes and and find the `id` field under user? If so, that much makes sense. But how exactly creating a relationship in the User class, and then Post class knowing to relate it's foreign key to the author of the Post is an enigma to me. Anyone care to explain please.
/r/flask
https://redd.it/8s2fmq
reddit
r/flask - SQLAlchemy - How does the relationship() function work?
12 votes and 5 so far on reddit
3 months into Python, I've completed my 2nd project: a script that sends you an SMS when the football team you support scores.
https://github.com/c-mnzs/footballNotifier
/r/Python
https://redd.it/8s9ued
https://github.com/c-mnzs/footballNotifier
/r/Python
https://redd.it/8s9ued
GitHub
c-mnzs/footballNotifier
A Python application that sends you a SMS when the football team you support scores. - c-mnzs/footballNotifier
A brief overview of how many objects Python allocates during script execution
http://rushter.com/blog/python-object-allocation-statistics/
/r/Python
https://redd.it/8s8t0x
http://rushter.com/blog/python-object-allocation-statistics/
/r/Python
https://redd.it/8s8t0x
Artem Golubin
How many objects does Python allocate during its interpreter lifetime? | Artem Golubin
A statistics about Python's object allocator.
Make ALL Your Django Forms Better | Caktus Group
https://www.caktusgroup.com/blog/2018/06/18/make-all-your-django-forms-better/
/r/django
https://redd.it/8sadjs
https://www.caktusgroup.com/blog/2018/06/18/make-all-your-django-forms-better/
/r/django
https://redd.it/8sadjs
Caktusgroup
Make ALL Your Django Forms Better | Caktus Group
Create great forms across your site. Learn how to customize Django's form rendering, and apply form styles and implementations site-wide to make universal changes to forms across an entire website.
Best open source Flask repos for learning design patterns?
I'm a remote dev and am trying to enhance my code organization. Anybody have any good flask repositories that will help teach organization and design patterns?
I'd like to concentrate on large Blueprint-organized RESTful apps, but mine often get out of hand.
/r/flask
https://redd.it/8segyj
I'm a remote dev and am trying to enhance my code organization. Anybody have any good flask repositories that will help teach organization and design patterns?
I'd like to concentrate on large Blueprint-organized RESTful apps, but mine often get out of hand.
/r/flask
https://redd.it/8segyj
reddit
r/flask - Best open source Flask repos for learning design patterns?
2 votes and 0 so far on reddit
from many duplications to 0: optimize my queryset
I dunno how good this queryset is but according to django_toolbar my queryset had many duplications that made me feel dumb but with reading more carefully the documentation
https://docs.djangoproject.com/en/2.0/ref/models/querysets/#prefetch-related
especially prefetch_related
this made me make a robust queryset with 0 duplications
my queryset
https://imgur.com/hgjHPOW
my post model
https://imgur.com/Q0H7M25
my comment model
https://imgur.com/O1c7AS2
django_toolbar
https://imgur.com/O1c7AS2
is there a clear way to optimize it without all this hassle plz don't forget put it in comment
/r/django
https://redd.it/8sdphl
I dunno how good this queryset is but according to django_toolbar my queryset had many duplications that made me feel dumb but with reading more carefully the documentation
https://docs.djangoproject.com/en/2.0/ref/models/querysets/#prefetch-related
especially prefetch_related
this made me make a robust queryset with 0 duplications
my queryset
https://imgur.com/hgjHPOW
my post model
https://imgur.com/Q0H7M25
my comment model
https://imgur.com/O1c7AS2
django_toolbar
https://imgur.com/O1c7AS2
is there a clear way to optimize it without all this hassle plz don't forget put it in comment
/r/django
https://redd.it/8sdphl