如何用pipenv解决Python package依赖？

Question

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?

Answer 1

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

$ pipenv lock --pre --clear

Answer 2

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.

Answer 3

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.

Answer 4

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

Answer 5

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.

Answer 6

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.

Answer 7

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!

Answer 8

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?

Answer 9

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).

Answer 10

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

pip uninstall pipenv
pip install pipenv

Answer 11

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

Answer 12

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

Answer 13

This could also be because you had an old pipenv environment and you need to clean it before you create a new one.

pipenv --rm
pipenv install

Answer 14

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

Answer 15

vi Pipfile and remove the offending packages. Worked nicely for me.