👻 Check our latest review to choose the best laptop for Machine Learning engineers and Deep learning tasks!
As the title says, I can"t seem to get migrations working.
The app was originally under 1.6, so I understand that migrations won"t be there initially, and indeed if I run python manage.py migrate
I get:
Operations to perform:
Synchronize unmigrated apps: myapp
Apply all migrations: admin, contenttypes, auth, sessions
Synchronizing apps without migrations:
Creating tables...
Installing custom SQL...
Installing indexes...
Running migrations:
No migrations to apply.
If I make a change to any models in myapp
, it still says unmigrated, as expected.
But if I run python manage.py makemigrations myapp
I get:
No changes detected in app "myapp"
Doesn"t seem to matter what or how I run the command, it"s never detecting the app as having changes, nor is it adding any migration files to the app.
Is there any way to force an app onto migrations and essentially say "This is my base to work with" or anything? Or am I missing something?
My database is a PostgreSQL one if that helps at all.
👻 Read also: what is the best laptop for engineering students?
Django 1.7 - makemigrations not detecting changes __del__: Questions
How can I make a time delay in Python?
5 answers
I would like to know how to put a time delay in a Python script.
Answer #1
import time
time.sleep(5) # Delays for 5 seconds. You can also use a float value.
Here is another example where something is run approximately once a minute:
import time
while True:
print("This prints once a minute.")
time.sleep(60) # Delay for 1 minute (60 seconds).
Answer #2
You can use the sleep()
function in the time
module. It can take a float argument for sub-second resolution.
from time import sleep
sleep(0.1) # Time in seconds
Django 1.7 - makemigrations not detecting changes __del__: Questions
How to delete a file or folder in Python?
5 answers
How do I delete a file or folder in Python?
Answer #1
os.remove()
removes a file.os.rmdir()
removes an empty directory.shutil.rmtree()
deletes a directory and all its contents.
Path
objects from the Python 3.4+ pathlib
module also expose these instance methods:
pathlib.Path.unlink()
removes a file or symbolic link.pathlib.Path.rmdir()
removes an empty directory.
We hope this article has helped you to resolve the problem. Apart from Django 1.7 – makemigrations not detecting changes, check other __del__-related topics.
Want to excel in Python? See our review of the best Python online courses 2023. If you are interested in Data Science, check also how to learn programming in R.
By the way, this material is also available in other languages:
- Italiano Django 1.7 – makemigrations not detecting changes
- Deutsch Django 1.7 – makemigrations not detecting changes
- Français Django 1.7 – makemigrations not detecting changes
- Español Django 1.7 – makemigrations not detecting changes
- Türk Django 1.7 – makemigrations not detecting changes
- Русский Django 1.7 – makemigrations not detecting changes
- Português Django 1.7 – makemigrations not detecting changes
- Polski Django 1.7 – makemigrations not detecting changes
- Nederlandse Django 1.7 – makemigrations not detecting changes
- 中文 Django 1.7 – makemigrations not detecting changes
- 한국어 Django 1.7 – makemigrations not detecting changes
- 日本語 Django 1.7 – makemigrations not detecting changes
- हिन्दी Django 1.7 – makemigrations not detecting changes
Vigrinia | 2023-03-22
Simply put and clear. Thank you for sharing. Django 1.7 – makemigrations not detecting changes and other issues with tty Python module was always my weak point 😁. Will get back tomorrow with feedback
Boston | 2023-03-22
tty Python module is always a bit confusing 😭 Django 1.7 – makemigrations not detecting changes is not the only problem I encountered. I just hope that will not emerge anymore
Texas | 2023-03-22
I was preparing for my coding interview, thanks for clarifying this - Django 1.7 – makemigrations not detecting changes in Python is not the simplest one. Will use it in my bachelor thesis