Develop Reference

ModuleNotFoundError: No module named 'crispy_formsmain'

Please help me as I am new to Django and I am learning out of my curiosity. I tried to find the solution but couldn't. I have spent 2 days to find the appropriate solution. Please help.
I cloned the repository from github and it gives me the error as follows:
(env) C:\Users\Tenzin Karma\Desktop\critique\Wrappers-India-Online-master>python manage.py runserver
Watching for file changes with StatReloader
Exception in thread django-main-thread:
Traceback (most recent call last):
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.1520.0_x64__qbz5n2kfra8p0\lib\threading.py", line 954, in _bootstrap_inner
self.run()
File `"C:\ProgramFiles\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.1520.0_x64__qbz5n2kfra8p0\lib\threading.py", line 892, in run`
self._target(*self._args, **self._kwargs)
File "C:\Users\Tenzin Karma\Desktop\critique\Wrappers-India-Online-master\env\lib\site-packages\django\utils\autoreload.py", line 64, in wrapper
fn(*args, **kwargs)
File "C:\Users\Tenzin Karma\Desktop\critique\Wrappers-India-Online-master\env\lib\site-`packages\django\core\management\commands\runserver.py", line 110, in inner_runautoreload.raise_last_exception()`
File "C:\Users\Tenzin Karma\Desktop\critique\Wrappers-India-Online-master\env\lib\site-packages\django\utils\autoreload.py", line 87, in raise_last_exception
raise _exception[1]
File "C:\Users\Tenzin Karma\Desktop\critique\Wrappers-India-Online-master\env\lib\site-packages\django\core\management\__init__.py", line 375, in execute
autoreload.check_errors(django.setup)()
File "C:\Users\Tenzin Karma\Desktop\critique\Wrappers-India-Online-master\env\lib\site-packages\django\utils\autoreload.py", line 64, in wrapper
fn(*args, **kwargs)
File "C:\Users\Tenzin Karma\Desktop\critique\Wrappers-India-Online-master\env\lib\site-packages\django\__init__.py", line 24, in setup
apps.populate(settings.INSTALLED_APPS)
File "C:\Users\Tenzin Karma\Desktop\critique\Wrappers-India-Online-master\env\lib\site-packages\django\apps\registry.py", line 91, in populate
app_config = AppConfig.create(entry)
File "C:\Users\Tenzin Karma\Desktop\critique\Wrappers-India-Online-master\env\lib\site-packages\django\apps\config.py", line 224, in create
import_module(entry)
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.1520.0_x64__qbz5n2kfra8p0\lib\importlib\__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
File "<frozen importlib._bootstrap>", line 984, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'crispy_formsmain'

Looking at the error , it looks like you are missing the module. You can try
pip install django-crispy-forms
Also from the error logs , I can see you are using virtual env, please make sure you install the package in the same venv.
Once installed, if it still shows the error , then
in settings.py installed apps add crispy_forms In settings.py add CRISPY_TEMPLATE_PACK = 'bootstrap4

Django Error Module 'Whitenoise' not found

I'm using whitenoise to deploy static files in prod, so according to whitenoise's docs, it's recommended to use it in development too.
So I followed the documentation and added the following to my settings.py file:
INSTALLED_APPS = [
'whitenoise.runserver_nostatic',
'django.contrib.admin',
...other
]
MIDDLEWARE = [
'django.middleware.security.SecurityMiddleware',
'whitenoise.middleware.WhiteNoiseMiddleware',
...other
]
But when I run the server using python manage.py runserver 0.0.0.0:8000, I get the error
ModuleNotFoundError: No module named 'whitenoise'
Full stack trace:
Exception in thread django-main-thread:
Traceback (most recent call last):
File "/usr/local/Cellar/python/3.7.6_1/Frameworks/Python.framework/Versions/3.7/lib/python3.7/threading.py", line 926, in _bootstrap_inner
self.run()
File "/usr/local/Cellar/python/3.7.6_1/Frameworks/Python.framework/Versions/3.7/lib/python3.7/threading.py", line 870, in run
self._target(*self._args, **self._kwargs)
File "/path/to/venv/lib/python3.7/site-packages/django/utils/autoreload.py", line 53, in wrapper
fn(*args, **kwargs)
File "/path/to/venv/lib/python3.7/site-packages/django/core/management/commands/runserver.py", line 109, in inner_run
autoreload.raise_last_exception()
File "/path/to/venv/lib/python3.7/site-packages/django/utils/autoreload.py", line 76, in raise_last_exception
raise _exception[1]
File "/path/to/venv/lib/python3.7/site-packages/django/core/management/__init__.py", line 357, in execute
autoreload.check_errors(django.setup)()
File "/path/to/venv/lib/python3.7/site-packages/django/utils/autoreload.py", line 53, in wrapper
fn(*args, **kwargs)
File "/path/to/venv/lib/python3.7/site-packages/django/__init__.py", line 24, in setup
apps.populate(settings.INSTALLED_APPS)
File "/path/to/venv/lib/python3.7/site-packages/django/apps/registry.py", line 91, in populate
app_config = AppConfig.create(entry)
File "/path/to/venv/lib/python3.7/site-packages/django/apps/config.py", line 116, in create
mod = import_module(mod_path)
File "/usr/local/Cellar/python/3.7.6_1/Frameworks/Python.framework/Versions/3.7/lib/python3.7/importlib/__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
File "<frozen importlib._bootstrap>", line 983, in _find_and_load
File "<frozen importlib._bootstrap>", line 965, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'whitenoise'
I checked using pip freeze and the module IS installed (v5.0.1) along with django 3.0.4. So why am I getting that error?

this issue will be resolved by installing whitenose module to your virtual environment or globally.
pip install whitenoise

Django Runserver error while executing "Python manage.py runserver"

C:\Users\SRIRAM_CHIVO\AppData\Local\Programs\Python\Python38\Scripts\FirstDjango
Proj>python manage.py runserver
Exception ignored in thread started by: <function check_errors.<locals>.wrapper
at 0x00000000038D00D0>
Traceback (most recent call last):
File "C:\Users\SRIRAM_CHIVO\AppData\Local\Programs\Python\Python38\lib\site-pa
ckages\django\utils\autoreload.py", line 228, in wrapper
fn(*args, **kwargs)
File "C:\Users\SRIRAM_CHIVO\AppData\Local\Programs\Python\Python38\lib\site-pa
ckages\django\core\management\commands\runserver.py", line 117, in inner_run
autoreload.raise_last_exception()
File "C:\Users\SRIRAM_CHIVO\AppData\Local\Programs\Python\Python38\lib\site-pa
ckages\django\utils\autoreload.py", line 251, in raise_last_exception
six.reraise(*_exception)
File "C:\Users\SRIRAM_CHIVO\AppData\Local\Programs\Python\Python38\lib\site-pa
ckages\django\utils\six.py", line 685, in reraise
raise value.with_traceback(tb)
File "C:\Users\SRIRAM_CHIVO\AppData\Local\Programs\Python\Python38\lib\site-pa
ckages\django\utils\autoreload.py", line 228, in wrapper
fn(*args, **kwargs)
File "C:\Users\SRIRAM_CHIVO\AppData\Local\Programs\Python\Python38\lib\site-pa
ckages\django\__init__.py", line 27, in setup
apps.populate(settings.INSTALLED_APPS)
File "C:\Users\SRIRAM_CHIVO\AppData\Local\Programs\Python\Python38\lib\site-pa
ckages\django\apps\registry.py", line 85, in populate
app_config = AppConfig.create(entry)
File "C:\Users\SRIRAM_CHIVO\AppData\Local\Programs\Python\Python38\lib\site-pa
ckages\django\apps\config.py", line 94, in create
module = import_module(entry)
File "C:\Users\SRIRAM_CHIVO\AppData\Local\Programs\Python\Python38\lib\importl
ib\__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
File "<frozen importlib._bootstrap>", line 991, in _find_and_load
File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 783, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "C:\Users\SRIRAM_CHIVO\AppData\Local\Programs\Python\Python38\lib\site-pa
ckages\django\contrib\admin\__init__.py", line 4, in <module>
from django.contrib.admin.filters import (
File "C:\Users\SRIRAM_CHIVO\AppData\Local\Programs\Python\Python38\lib\site-pa
ckages\django\contrib\admin\filters.py", line 10, in <module>
from django.contrib.admin.options import IncorrectLookupParameters
File "C:\Users\SRIRAM_CHIVO\AppData\Local\Programs\Python\Python38\lib\site-pa
ckages\django\contrib\admin\options.py", line 12, in <module>
from django.contrib.admin import helpers, widgets
SyntaxError: Generator expression must be parenthesized (widgets.py, line 152)
Django version installed successfully-1.11.10
python version-3.8.1
Project created and manage.py as well created.
BUt while i am trying runserver,Throwing an error with this this big passage:
Help me out how can i solve this?

The same happened with me also, but this issue is a minor one as it happens if you have multiple versions of Python on your system, you can select a specific Python version by running python3 or whichever version you want. So you should start from the beginning, uninstall Django first, then create a virtual environment, decide upon a directory where you want to place it, and run the venv module as a script with the directory path:
python3 -m venv tutorial-env
This will create the tutorial-env directory if it doesn’t exist, and also create directories inside it Once you’ve created a virtual environment, you may activate it.
On Windows, run:
tutorial-env\Scripts\activate.bat
On Unix or MacOS, run:
source tutorial-env/bin/activate
Now, In the command prompt, ensure your virtual environment is active, and execute the following command:
py -m pip install Django
NOTE: If django-admin only displays the help text no matter what arguments it is given, there is probably a problem with the file association in Windows. Check if there is more than one environment variable set for running Python scripts in PATH. This usually occurs when there is more than one Python version installed.

Django runserver error, new installation, first time user of Django

So I've decided to learn Django, which will be challenging if I cannot get it working.
Running
Python 3.7.1 (default, Dec 14 2018, 19:28:38)
[GCC 7.3.0] :: Anaconda, Inc. on linux
(base) runout#runout:~$ python -m django --version
2.2.1
I'm following the tutorial for beginners at djangoproject.com
The first line of code was to create a site, which i did...
django-admin startproject mysite
The second line of code, is where I run into problems.
python manage.py runserver
My error is as follows:
Watching for file changes with StatReloader
Exception in thread django-main-thread:
Traceback (most recent call last):
File "/home/runout/anaconda3/lib/python3.7/threading.py", line 917, in _bootstrap_inner
self.run()
File "/home/runout/anaconda3/lib/python3.7/threading.py", line 865, in run
self._target(*self._args, **self._kwargs)
File "/home/runout/anaconda3/lib/python3.7/site-packages/django/utils/autoreload.py", line 54, in wrapper
fn(*args, **kwargs)
File "/home/runout/anaconda3/lib/python3.7/site-packages/django/core/management/commands/runserver.py", line 109, in inner_run
autoreload.raise_last_exception()
File "/home/runout/anaconda3/lib/python3.7/site-packages/django/utils/autoreload.py", line 77, in raise_last_exception
raise _exception[0](_exception[1]).with_traceback(_exception[2])
File "/home/runout/anaconda3/lib/python3.7/site-packages/django/utils/autoreload.py", line 54, in wrapper
fn(*args, **kwargs)
File "/home/runout/anaconda3/lib/python3.7/site-packages/django/__init__.py", line 24, in setup
apps.populate(settings.INSTALLED_APPS)
File "/home/runout/anaconda3/lib/python3.7/site-packages/django/apps/registry.py", line 114, in populate
app_config.import_models()
File "/home/runout/anaconda3/lib/python3.7/site-packages/django/apps/config.py", line 211, in import_models
self.models_module = import_module(models_module_name)
File "/home/runout/anaconda3/lib/python3.7/importlib/__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
File "<frozen importlib._bootstrap>", line 983, in _find_and_load
File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 728, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "/home/runout/anaconda3/lib/python3.7/site-packages/django/contrib/auth/models.py", line 2, in <module>
from django.contrib.auth.base_user import AbstractBaseUser, BaseUserManager
File "/home/runout/anaconda3/lib/python3.7/site-packages/django/contrib/auth/base_user.py", line 47, in <module>
class AbstractBaseUser(models.Model):
File "/home/runout/anaconda3/lib/python3.7/site-packages/django/db/models/base.py", line 117, in __new__
new_class.add_to_class('_meta', Options(meta, app_label))
File "/home/runout/anaconda3/lib/python3.7/site-packages/django/db/models/base.py", line 321, in add_to_class
value.contribute_to_class(cls, name)
File "/home/runout/anaconda3/lib/python3.7/site-packages/django/db/models/options.py", line 204, in contribute_to_class
self.db_table = truncate_name(self.db_table, connection.ops.max_name_length())
File "/home/runout/anaconda3/lib/python3.7/site-packages/django/db/__init__.py", line 28, in __getattr__
return getattr(connections[DEFAULT_DB_ALIAS], item)
File "/home/runout/anaconda3/lib/python3.7/site-packages/django/db/utils.py", line 201, in __getitem__
backend = load_backend(db['ENGINE'])
File "/home/runout/anaconda3/lib/python3.7/site-packages/django/db/utils.py", line 110, in load_backend
return import_module('%s.base' % backend_name)
File "/home/runout/anaconda3/lib/python3.7/importlib/__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "/home/runout/anaconda3/lib/python3.7/site-packages/django/db/backends/sqlite3/base.py", line 28, in <module>
from .introspection import DatabaseIntrospection # isort:skip
File "/home/runout/anaconda3/lib/python3.7/site-packages/django/db/backends/sqlite3/introspection.py", line 4, in <module>
import sqlparse
ModuleNotFoundError: No module named 'sqlparse'
I know nothing of Django, I'm excited to learn. I've looked all over the net and SO for a solution to this problem to no avail. Can anyone get me up and running?

Apparently a python package is missing. You can install it like this:
pip install sqlparse

You're on Linux so install 'sqlparse' by typing:
pip3 install sqlparse. Also you should call python with python3, so that it's not confused with python2.

Trouble with psycopg2 setting up django

I'm trying to set up a Django app using a postgresql server (to eventually use with GeoDjango for GIS). I'm on a mac running OSX 10.11 and am running python 3.5 in a virtualenv. I've gone through all the installtion of postgresql, pyscopg2 etc and am trying to run
python manage.py migrate
But when I do I get the following error.
Traceback (most recent call last):
File "/Users/me/.python3env/lib/python3.5/site-packages/django/db/backends/postgresql/base.py", line 20, in <module>
import psycopg2 as Database
File "/Users/me/.python3env/lib/python3.5/site-packages/psycopg2/__init__.py", line 50, in <module>
from psycopg2._psycopg import BINARY, NUMBER, STRING, DATETIME, ROWID
ImportError: dlopen(/Users/me/.python3env/lib/python3.5/site-packages/psycopg2/_psycopg.cpython-35m-darwin.so, 2): Library not loaded: libssl.1.0.0.dylib
Referenced from: /Users/me/.python3env/lib/python3.5/site-packages/psycopg2/_psycopg.cpython-35m-darwin.so
Reason: image not found
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "manage.py", line 22, in <module>
execute_from_command_line(sys.argv)
File "/Users/me/.python3env/lib/python3.5/site-packages/django/core/management/__init__.py", line 367, in execute_from_command_line
utility.execute()
File "/Users/me/.python3env/lib/python3.5/site-packages/django/core/management/__init__.py", line 341, in execute
django.setup()
File "/Users/me/.python3env/lib/python3.5/site-packages/django/__init__.py", line 27, in setup
apps.populate(settings.INSTALLED_APPS)
File "/Users/me/.python3env/lib/python3.5/site-packages/django/apps/registry.py", line 108, in populate
app_config.import_models(all_models)
File "/Users/me/.python3env/lib/python3.5/site-packages/django/apps/config.py", line 199, in import_models
self.models_module = import_module(models_module_name)
File "/Users/me/.python3env/lib/python3.5/importlib/__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 986, in _gcd_import
File "<frozen importlib._bootstrap>", line 969, in _find_and_load
File "<frozen importlib._bootstrap>", line 958, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 673, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 665, in exec_module
File "<frozen importlib._bootstrap>", line 222, in _call_with_frames_removed
File "/Users/me/.python3env/lib/python3.5/site-packages/django/contrib/auth/models.py", line 4, in <module>
from django.contrib.auth.base_user import AbstractBaseUser, BaseUserManager
File "/Users/me/.python3env/lib/python3.5/site-packages/django/contrib/auth/base_user.py", line 52, in <module>
class AbstractBaseUser(models.Model):
File "/Users/me/.python3env/lib/python3.5/site-packages/django/db/models/base.py", line 119, in __new__
new_class.add_to_class('_meta', Options(meta, app_label))
File "/Users/me/.python3env/lib/python3.5/site-packages/django/db/models/base.py", line 316, in add_to_class
value.contribute_to_class(cls, name)
File "/Users/me/.python3env/lib/python3.5/site-packages/django/db/models/options.py", line 214, in contribute_to_class
self.db_table = truncate_name(self.db_table, connection.ops.max_name_length())
File "/Users/me/.python3env/lib/python3.5/site-packages/django/db/__init__.py", line 33, in __getattr__
return getattr(connections[DEFAULT_DB_ALIAS], item)
File "/Users/me/.python3env/lib/python3.5/site-packages/django/db/utils.py", line 211, in __getitem__
backend = load_backend(db['ENGINE'])
File "/Users/me/.python3env/lib/python3.5/site-packages/django/db/utils.py", line 115, in load_backend
return import_module('%s.base' % backend_name)
File "/Users/me/.python3env/lib/python3.5/importlib/__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "/Users/me/.python3env/lib/python3.5/site-packages/django/db/backends/postgresql/base.py", line 24, in <module>
raise ImproperlyConfigured("Error loading psycopg2 module: %s" % e)
django.core.exceptions.ImproperlyConfigured: Error loading psycopg2 module: dlopen(/Users/me/.python3env/lib/python3.5/site-packages/psycopg2/_psycopg.cpython-35m-darwin.so, 2): Library not loaded: libssl.1.0.0.dylib
Referenced from: /Users/me/.python3env/lib/python3.5/site-packages/psycopg2/_psycopg.cpython-35m-darwin.so
Reason: image not found
I've found a couple of stackoverflow threads on this error but none of the solutions seem to help at all.
Any advice would be much appreciated!
Edit: brew doctor output
Warning: python is symlinked to python3
This will confuse build scripts and in general lead to subtle breakage.
Warning: "config" scripts exist outside your system or Homebrew directories.
`./configure` scripts often look for *-config scripts to determine if
software packages are installed, and what additional flags to use when
compiling and linking.
Having additional scripts in your path can confuse software installed via
Homebrew if the config script overrides a system or Homebrew provided
script of the same name. We found the following "config" scripts:
/Users/me/.python3env/bin/python-config
Warning: Python is installed at /Library/Frameworks/Python.framework
Homebrew only supports building against the System-provided Python or a
brewed Python. In particular, Pythons installed to /Library can interfere
with other software installs.