This article will discuss about how to solve a certain error. That error available by executing a certain command. That command is actually just to run a Django-based web application. Actually before executing the command, there is an additional line configuration added to the settings.py file configuration. The following is the location of that file :
C:\python\project\apps>tree .
Folder PATH listing for volume Windows
Volume serial number is E003-3593
C:\PYTHON\PROJECT\APPS
├───project
│ └───__pycache__
| __init__.py
| asgi.py
| models.py
| settings.py
| urls.py
| wsgi.py
└───apps
├───migrations
│ └───__pycache__
├───templates
└───__pycache__
C:\python\project\apps>
In the ‘settings.py’, the additional line is exist as follows :
INSTALLED_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'apps',
'crispy_forms',
]
The additional line is ‘crispy_forms’ in the last line of INSTALLED_APPS parameter. By adding and also saving the new added configuration line, the execution process begin. After executing the command for starting the Django-based application, there an error appear as follows :
(myenv) C:\python\project\apps>python manage.py runserver
Watching for file changes with StatReloader
Exception in thread django-main-thread:
Traceback (most recent call last):
File "C:\Python38\lib\threading.py", line 932, in _bootstrap_inner
self.run()
File "C:\Python38\lib\threading.py", line 870, in run
self._target(*self._args, **self._kwargs)
File "C:\python\myenv\lib\site-packages\django\utils\autoreload.py", line 53, in wrapper
fn(*args, **kwargs)
File "C:\python\myenv\lib\site-packages\django\core\management\commands\runserver.py", line 110, in inner_run
autoreload.raise_last_exception()
File "C:\python\myenv\lib\site-packages\django\utils\autoreload.py", line 76, in raise_last_exception
raise _exception[1]
File "C:\python\myenv\lib\site-packages\django\core\management\__init__.py", line 357, in execute
autoreload.check_errors(django.setup)()
File "C:\python\myenv\lib\site-packages\django\utils\autoreload.py", line 53, in wrapper
fn(*args, **kwargs)
File "C:\python\myenv\lib\site-packages\django\__init__.py", line 24, in setup
apps.populate(settings.INSTALLED_APPS)
File "C:\python\myenv\lib\site-packages\django\apps\registry.py", line 91, in populate
app_config = AppConfig.create(entry)
File "C:\python\myenv\lib\site-packages\django\apps\config.py", line 90, in create
module = import_module(entry)
File "C:\Python38\lib\importlib\__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "", line 1014, in _gcd_import
File "", line 991, in _find_and_load
File "", line 973, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'crispy_forms'
Traceback (most recent call last):
File "manage.py", line 21, in
main()
File "manage.py", line 17, in main
execute_from_command_line(sys.argv)
File "C:\python\myenv\lib\site-packages\django\core\management\__init__.py", line 401, in execute_from_command_line
utility.execute()
File "C:\python\myenv\lib\site-packages\django\core\management\__init__.py", line 395, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "C:\python\myenv\lib\site-packages\django\core\management\base.py", line 330, in run_from_argv
self.execute(*args, **cmd_options)
File "C:\python\myenv\lib\site-packages\django\core\management\commands\runserver.py", line 61, in execute
super().execute(*args, **options)
File "C:\python\myenv\lib\site-packages\django\core\management\base.py", line 371, in execute
output = self.handle(*args, **options)
File "C:\python\myenv\lib\site-packages\django\core\management\commands\runserver.py", line 96, in handle
self.run(**options)
File "C:\python\myenv\lib\site-packages\django\core\management\commands\runserver.py", line 103, in run
autoreload.run_with_reloader(self.inner_run, **options)
File "C:\python\myenv\lib\site-packages\django\utils\autoreload.py", line 618, in run_with_reloader
start_django(reloader, main_func, *args, **kwargs)
File "C:\python\myenv\lib\site-packages\django\utils\autoreload.py", line 603, in start_django
reloader.run(django_main_thread)
File "C:\python\myenv\lib\site-packages\django\utils\autoreload.py", line 318, in run
self.run_loop()
File "C:\python\myenv\lib\site-packages\django\utils\autoreload.py", line 324, in run_loop
next(ticker)
File "C:\python\myenv\lib\site-packages\django\utils\autoreload.py", line 364, in tick
for filepath, mtime in self.snapshot_files():
File "C:\python\myenv\lib\site-packages\django\utils\autoreload.py", line 380, in snapshot_files
for file in self.watched_files():
File "C:\python\myenv\lib\site-packages\django\utils\autoreload.py", line 278, in watched_files
yield from iter_all_python_module_files()
File "C:\python\myenv\lib\site-packages\django\utils\autoreload.py", line 105, in iter_all_python_module_files
return iter_modules_and_files(modules, frozenset(_error_files))
File "C:\python\myenv\lib\site-packages\django\utils\autoreload.py", line 141, in iter_modules_and_files
resolved_path = path.resolve(strict=True).absolute()
File "C:\Python38\lib\pathlib.py", line 1172, in resolve
s = self._flavour.resolve(self, strict=strict)
File "C:\Python38\lib\pathlib.py", line 200, in resolve
return self._ext_to_normal(_getfinalpathname(s))
OSError: [WinError 123] The filename, directory name, or volume label syntax is incorrect: ''
Tracing back the error message, there is one specific error message that is becoming the main hint to solve the problem. That error is ‘ModuleNotFoundError: No module named ‘crispy_forms”. So, in order to solve the problem, just install the module with the name containing ‘crispy_forms’. Before installing the module, just search the module first to be able to find the exact name of the module. Just execute the following command :
(myenv) C:\python\project\apps>pip search crispy
crispy-models (0.1.13) - Shared code for CRISPy web service
crispy-tailwind (0.2.0) - A tailwind package for Django Crispy Forms
crispy-bootstrap5 (0.1) - Bootstrap5 template pack for django-crispy-forms
crispy-templates (0.2.0) - A collection of useful templates for customizing crispy forms layouts.
django-crispy-views (1.0.1) - crispy views for django.
django-crispy-admin (0.0.6) - Django Crispy Admin allows you to edit your forms with the handy
crispy forms, and bootstrap3 FTW!
crispy-semantic-ui (1.0.2) - Semantic UI template pack for crispy forms
crispy (0.7.3) - Core-Level Spectroscopy Simulations in Python
crispy-forms-materialize (0.2) - Django application to add 'django-crispy-forms' layout objects for
Materialize
crispy-forms-bulma (1.1.4) - Django application to add 'django-crispy-forms' layout objects for
Bulma.io
django-crispy-bulma (0.2) - Django application to add 'django-crispy-forms' layout objects for
Bulma.io
crispy-forms-propeller (0.0.2a13) - Django application to add 'django-crispy-forms' layout objects for
'Propeller.in'
crispy-forms-foundation (0.8.0) - Django application to add 'django-crispy-forms' layout objects for
'Foundation for sites'
crispy-forms-semantic-ui (0.2.0) - Semantic UI templates for django-crispy-forms.
crispy-forms-foundation-demo (0.5.0) - Django application to demonstrate 'crispy-forms-foundation'
crispy-forms-gds (0.2.1) - Django application to add 'django-crispy-forms' layout objects for the
GOV.UK Design System.
crispy-forms-bulma-django2 (1.1.5) - Django application to add 'django-crispy-forms' layout objects for
Bulma.io
django-crispy-contact-form (0.3.8) - Customizable contact form based on crispy-forms with captcha support for
Django 1.11+
astro-crispy (0.1.0) - Computational Ridge Identification with SCMS for Python
django-crispy (1.8.1) - Best way to have Django DRY forms
django-crispy-forms (1.10.0) - Best way to have Django DRY forms
crispy-forms-uikit (0.2.0) -
django-crispy-bootstrap (0.1.1.1) - UNKNOWN
django-crispy-forms-ng (2.0.0) - Best way to have Django DRY forms of the next generation.
django-crispy-forms-fancy-formsets (0.1) - UNKNOWN
django_crispy_forms_registration (0.1.3) - Library that merges Django auth, registration, and crispy
cf-pretty-form-errors (1.0.4) - Make your crispy form errors more pretty
django-form-models (0.2.0) - Sample models for modelling django forms and fields, and integrate with
crispy forms layout.
django-slds-crispyforms (0.1.0) - Django Crispy Forms template overrides for rendering forms using the
Salesforce Lightning Design System
(myenv) C:\python\apps\apps>
As in the above command execution for searching the module that has the exact name for solving the problem, there is one module name that is suitable. That module name is in the following line :
django-crispy-forms (1.10.0) - Best way to have Django DRY forms
So, in order to solve the problem, just install the module with the name of ‘django-crispy-forms’ as follows :
(myenv) C:\python\project\apps>pip install django-crispy-forms
Collecting django-crispy-forms
Downloading django_crispy_forms-1.10.0-py3-none-any.whl (107 kB)
|████████████████████████████████| 107 kB 2.2 MB/s
Installing collected packages: django-crispy-forms
Successfully installed django-crispy-forms-1.10.0
WARNING: You are using pip version 20.2.3; however, version 20.3.1 is available.
You should consider upgrading via the 'c:\python\myenv\scripts\python.exe -m pip install --upgrade pip' command.
(myenv) C:\python\project\apps>
The above module installation is actually a success, if there is no other problem the application execution should just run normally. Just re-execute the previous command for running the Django-based web application as follows :
C:\python\project\apps\admin.py changed, reloading. Watching for file changes with StatReloader Performing system checks... System check identified no issues (0 silenced). December 12, 2020 - 14:52:49 Django version 3.1.4, using settings 'apps.settings' Starting development server at http://127.0.0.1:8000/ Quit the server with CTRL-BREAK.
Which python verison are you using i am using python3.9.7 but also i am getting same error please help me
Check this article How to Use Crispy Form Tag in Django by Using a Form