I'm a Python newbie and having a bit of trouble understanding dependencies, hoping someone can help.
I'm using pipenv to set up a dev environment. Here is my pipenv file
[[source]]
url = "https://pypi.python.org/simple"
verify_ssl = true
name = "pypi"
[packages]
[dev-packages]
pytest = "*"
apache-airflow = "*"
[requires]
python_version = "2.7"
When I issue pipenv install --dev this happens:
$ pipenv install --dev
Courtesy Notice: Pipenv found itself running within a virtual environment, so it will automatically use that environment, instead of creating its own for any project.
Pipfile.lock not found, creating… Locking [dev-packages] dependencies…Warning: Your dependencies could not be resolved. You likely have a mismatch in your sub-dependencies.
You can use $ pipenv install --skip-lock to bypass this mechanism, then run $ pipenv graph to inspect the situation.
Could not find a version that matches Flask-Login<0.5,==0.2.11,>=0.3
Tried: 0.1.1, 0.1.2, 0.1.3, 0.2.0, 0.2.1, 0.2.2, 0.2.3, 0.2.4, 0.2.5, 0.2.6, 0.2.7, 0.2.8, 0.2.9, 0.2.10, 0.2.11, 0.3.0, 0.3.1, 0.3.2, 0.4.0, 0.4.0, 0.4.1
I did what it suggested: pipenv install --dev --skip-lock which completed successfully:
$ pipenv install --dev --skip-lock
Courtesy Notice: Pipenv found itself running within a virtual environment, so it will automatically use that environment, instead of creating its own for any project.
Installing dependencies from Pipfile… ????
▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉ 2/2 — 00:00:02
then pipenv graph | grep Flask-Login
$ pipenv graph | grep Flask-Login
- Flask-Login [required: <0.5,>=0.3, installed: 0.2.11]
At this point I'm a bit confused. I don't know why it might have installed Flask-Login 0.2.11 given there's (seemingly) nothing else in the dependency graph that requires Flask-Login.
I'm confused. Help!
