How to resolve Python package dependencies with pipenv?

I am using pipenv to handle Python package dependencies.

The Python package is using two packages (named pckg1 and pckg2) that rely on the same package named pckg3, but from two different versions. Showing the dependency tree :

$ pipenv graph
  pckg1==3.0.0
    - pckg3 [required: >=4.1.0]
  pckg2==1.0.2
    - pckg3 [required: ==4.0.11]

An attempt to install dependencies :

$ pipenv install

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.
Hint: try $ pipenv lock --pre if it is a pre-release dependency.
Could not find a version that matches pckg3==4.0.11,==4.1.0,>=4.1.0 (from -r C:\Users\user\AppData\Local\Temp\pipenv-o7uxm080-requirements\pipenv-hwekv7dc-constraints.txt (line 2))
Tried: 3.3.1, 3.3.2, 3.3.3, 3.4.0, 3.4.2, 4.0.0, 4.0.0, 4.0.1, 4.0.1, 4.0.2, 4.0.2, 4.0.3, 4.0.3, 4.0.4, 4.0.4, 4.0.6, 4.0.6, 4.0.8, 4.0.8, 4.0.9, 4.0.9, 4.0.10, 4.0.10, 4.0.11, 4.0.11, 4.1.0, 4.1.0, 4.1.1, 4.1.1, 4.1.2, 4.1.2, 4.2.1, 4.2.1, 4.3.0, 4.3.0
There are incompatible versions in the resolved dependencies.

As suggested, pip install --skip-lock does the trick, but the dependency tree is still unresolved.

I would love to tell Pipenv to override pckg2's requirement, and specify pckg3>=4.1.0.

How can this be resolved?

I get that error constantly. Clearing the cache in the lock file works beautifully every time.

$ pipenv lock --pre --clear

You can't. At the moment, pipenv doesn't offer anything for an explicit override of requirement constraints.

As a workaround, you can put dependencies that you want to override to dev-packages as those will be overridden by packages, so this Pipfile should install pckg3>=4.1.0:

# Pipfile
...
[packages]
pckg1 = "==3.0.0"

[dev-packages]
pckg2 = "==1.0.2"

If you now lock and install:

$ pipenv lock --dev
$ pipenv install --dev

the requirement ==4.0.11 will be overridden by >=4.1.0. This is ugly if you ask me because this is not what development packages are meant for and you're changing the role of pckg2 dependency in project, but I don't see any better way here.

This works when there are unfinished routines on pipfile.

Once I made a mistake and run

pipenv install codecove # With an 'e' at the end

and the pipenv kept always trying to complete the installation with no success because the lib does not exist. I resolved it with:

pipenv uninstall codecove

and installed codecov after.

I tried to run

pipenv lock --clear
pipenv lock --pre --clear

but only after uninstalled the lib with wrong name I succeeded.

I have the similar issue with google-cloud-core.

$ pipenv lock
Locking [dev-packages] dependencies…
Locking [packages] dependencies…

Warning: Your dependencies could not be resolved. You likely have a mismatch in your sub-dependencies.
  First try clearing your dependency cache with $ pipenv lock --clear, then try the original command again.
 Alternatively, you can use $ pipenv install --skip-lock to bypass this mechanism, then run $ pipenv graph to inspect the situation.
  Hint: try $ pipenv lock --pre if it is a pre-release dependency.
Could not find a version that matches google-cloud-core<0.29dev,<0.30dev,>=0.28.0,>=0.29.0
Tried: 0.20.0, 0.20.0, 0.21.0, 0.21.0, 0.22.0, 0.22.0, 0.22.1, 0.22.1, 0.23.0, 0.23.0, 0.23.1, 0.23.1, 0.24.0, 0.24.0, 0.24.1, 0.24.1, 0.25.0, 0.25.0, 0.26.0, 0.26.0, 0.27.0, 0.27.0, 0.27.1, 0.27.1, 0.28.0, 0.28.0, 0.28.1, 0.28.1, 0.29.0, 0.29.0
There are incompatible versions in the resolved dependencies.

It was solved by

1. rm -rf Pipfile.lock
2. pipenv update

If you get an error like:

Locking [dev-packages] dependencies…
Locking [packages] dependencies…
✘ Locking Failed! 

For me, this happened because the underlying virtual environment did not refer to my current directory.

I solved this problem by moving the contents to a new directory and deleting the old one.

I also had to delete the Pipfile and Pipfile.lock but I'm not sure if that's necessary.

It happened the same to me, I'm working with Visual Studio Code and I was able to get rid o it:

• remove all files except *.py from your python folder (.vscode, pycache, * virtual environments within that folder)
• create a new virtualenv env(name)
• new\scripts\activate.bat

and then try to install the missing dependencies for the virtual folder and good to go, it worked for me.

If you ran into the Locking Failed! error:

Locking [dev-packages] dependencies…
Locking [packages] dependencies…
✘ Locking Failed!

Clearing the cache on pipfile.lock, uninstalling your package and restarting the VM did the trick for me.

Try:

pipenv uninstall *YourPackage*
pipenv uninstall *YourPackage* --dev   ##(if relevant to your package)
pipenv lock --clear

stop & destroy VM

restart VM

Hope this helps!

pip install -U pipenv     

solved for me on Ubuntu 21.04 - Hirsute Hippo - python Version 3.9.5

This command installed those packages:

• appdirs-1.4.4
• certifi-2021.5.30
• distlib-0.3.2
• filelock-3.0.12
• pipenv-2021.5.29
• six-1.16.0
• virtualenv-20.4.7
• virtualenv-clone-0.5.4

I had similar issue with glob module. I deleted glob = "*" from Pipfile and it worked fine after that.

Error:

bash-4.2# pipenv lock  --clear
Locking [dev-packages] dependencies…
✔ Success! 
Locking [packages] dependencies…
✘ Locking Failed! 
[pipenv.exceptions.ResolutionFailure]:   File "/root/.pyenv/versions/3.6.6/lib/python3.6/site-packages/pipenv/resolver.py", line 69, in resolve
[pipenv.exceptions.ResolutionFailure]:       req_dir=requirements_dir
[pipenv.exceptions.ResolutionFailure]:   File "/root/.pyenv/versions/3.6.6/lib/python3.6/site-packages/pipenv/utils.py", line 726, in resolve_deps
[pipenv.exceptions.ResolutionFailure]:       req_dir=req_dir,
[pipenv.exceptions.ResolutionFailure]:   File "/root/.pyenv/versions/3.6.6/lib/python3.6/site-packages/pipenv/utils.py", line 480, in actually_resolve_deps
[pipenv.exceptions.ResolutionFailure]:       resolved_tree = resolver.resolve()
[pipenv.exceptions.ResolutionFailure]:   File "/root/.pyenv/versions/3.6.6/lib/python3.6/site-packages/pipenv/utils.py", line 395, in resolve
[pipenv.exceptions.ResolutionFailure]:       raise ResolutionFailure(message=str(e))
[pipenv.exceptions.ResolutionFailure]:       pipenv.exceptions.ResolutionFailure: ERROR: ERROR: Could not find a version that matches glob
[pipenv.exceptions.ResolutionFailure]:       No versions found
[pipenv.exceptions.ResolutionFailure]: Warning: Your dependencies could not be resolved. You likely have a mismatch in your sub-dependencies.
  First try clearing your dependency cache with $ pipenv lock --clear, then try the original command again.
 Alternatively, you can use $ pipenv install --skip-lock to bypass this mechanism, then run $ pipenv graph to inspect the situation.
  Hint: try $ pipenv lock --pre if it is a pre-release dependency.
ERROR: ERROR: Could not find a version that matches glob
No versions found
Was https://pypi.org/simple reachable?
[pipenv.exceptions.ResolutionFailure]:       req_dir=requirements_dir
[pipenv.exceptions.ResolutionFailure]:   File "/root/.pyenv/versions/3.6.6/lib/python3.6/site-packages/pipenv/utils.py", line 726, in resolve_deps
[pipenv.exceptions.ResolutionFailure]:       req_dir=req_dir,
[pipenv.exceptions.ResolutionFailure]:   File "/root/.pyenv/versions/3.6.6/lib/python3.6/site-packages/pipenv/utils.py", line 480, in actually_resolve_deps
[pipenv.exceptions.ResolutionFailure]:       resolved_tree = resolver.resolve()
[pipenv.exceptions.ResolutionFailure]:   File "/root/.pyenv/versions/3.6.6/lib/python3.6/site-packages/pipenv/utils.py", line 395, in resolve
[pipenv.exceptions.ResolutionFailure]:       raise ResolutionFailure(message=str(e))
[pipenv.exceptions.ResolutionFailure]:       pipenv.exceptions.ResolutionFailure: ERROR: ERROR: Could not find a version that matches glob
[pipenv.exceptions.ResolutionFailure]:       No versions found
[pipenv.exceptions.ResolutionFailure]: Warning: Your dependencies could not be resolved. You likely have a mismatch in your sub-dependencies.
  First try clearing your dependency cache with $ pipenv lock --clear, then try the original command again.
 Alternatively, you can use $ pipenv install --skip-lock to bypass this mechanism, then run $ pipenv graph to inspect the situation.
  Hint: try $ pipenv lock --pre if it is a pre-release dependency.
ERROR: ERROR: Could not find a version that matches glob
No versions found
Was https://pypi.org/simple reachable?

On Windows 10 using VS Code I got a clean install after much messing about by running pipenv in Powershell. I also deleted all traces of the previous tries (new directory deleted the previous venvs).

Nothing here worked for me. In the end this solved the issue:

pip uninstall pipenv
pip install pipenv

Updating pip inside the virtualenv worked for me: py -m pip install --upgrade pip

pipenv lock
Locking [dev-packages] dependencies…
Locking [packages] dependencies…

Warning: Your dependencies could not be resolved. You likely have a mismatch in your sub-dependencies.
  First try clearing your dependency cache with $ pipenv lock --clear, then try the original command again.
 Alternatively, you can use $ pipenv install --skip-lock to bypass this mechanism, then run $ pipenv graph to inspect the situation.
  Hint: try $ pipenv lock --pre if it is a pre-release dependency.

pipenv install --clean