#100DaysOfWeb in Python Transcripts
Chapter: Days 61-64: Database migrations
Lecture: Fix an error: Alembic distribution not found
0:00 Before we move on I actually just saw a weird error happening here. And I honestly don't know why Python's not figuring this out
0:08 but I want to just make a quick change in case you also run into this error. So we added alembic here as a dependency of this thing
0:15 and we of course installed it as you can see. We have alembic installed right there at the top
0:21 but when I run it, we get this weird alembic distribution was not found and is required. It's like the requirement statement of our package
0:31 somehow is telling Python alembic is required and Python thinks it's not there and yet it's there. Anyway because we should be able to say
0:40 import alembic and guess what, it's there. Anyway, let's get around that problem. We've already installed this, so let's just go over here
0:48 and shift away from entirely using the setup file and to over to a requirements file so we'll say pip freeze, which gives us a list
0:56 of all of our things. We can pip freeze into requirements.txt if you look here we have our requirements.txt which looks just like that.
1:09 And now we can pip install -r requirements.txt like that. Of course this is a little bit crazy 'cause the one other thing we want to change is
1:16 it thinks it's trying to reinstall this. There we go. Now we should be able to pip install our requirements
1:25 everything's good and if you did this you need to rerun one more time the setup development.py now if we run it we still get an error
1:34 but the error we're hoping for. Okay, not sure what was up there but I wanted to make sure I put this video in here because I could've mislead you
1:41 or maybe you ran into the same problem, so just take that alembic out of your setup, should be fine but for some reason it wasn't.