KeyError when during `pipenv install <package>`

Key error when installing dependency. It seams to happen when pipenv is trying to add dependency to Pipfile:

Action:

pipenv install mock

Environment

1. MacOS 10.12.6 Sierra
2. Python version: 3.6.4
3. Pipenv version: 8.3.2

Expected result

No KeyError raised. Dependency added to Pipfile.

Actual result

KeyError raised. Dependency is not added to Pipfile.

Installing mock…
Requirement already satisfied: mock in /Users/robin/.local/share/virtualenvs/ATG-PATKL30Y/lib/python3.6/site-packages
Requirement already satisfied: pbr>=0.11 in /Users/robin/.local/share/virtualenvs/ATG-PATKL30Y/lib/python3.6/site-packages (from mock)
Requirement already satisfied: six>=1.9 in /Users/robin/.local/share/virtualenvs/ATG-PATKL30Y/lib/python3.6/site-packages (from mock)

Adding mock to Pipfile's [packages]…
Traceback (most recent call last):
  File "/usr/local/bin/pipenv", line 11, in <module>
    sys.exit(cli())
  File "/usr/local/lib/python3.6/site-packages/pipenv/vendor/click/core.py", line 722, in __call__
    return self.main(*args, **kwargs)
  File "/usr/local/lib/python3.6/site-packages/pipenv/vendor/click/core.py", line 697, in main
    rv = self.invoke(ctx)
  File "/usr/local/lib/python3.6/site-packages/pipenv/vendor/click/core.py", line 1066, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/usr/local/lib/python3.6/site-packages/pipenv/vendor/click/core.py", line 895, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/local/lib/python3.6/site-packages/pipenv/vendor/click/core.py", line 535, in invoke
    return callback(*args, **kwargs)
  File "/usr/local/lib/python3.6/site-packages/pipenv/cli.py", line 1923, in install
    project.add_package_to_pipfile(package_name, dev)
  File "/usr/local/lib/python3.6/site-packages/pipenv/project.py", line 461, in add_package_to_pipfile
    p = self._pipfile
  File "/usr/local/lib/python3.6/site-packages/pipenv/project.py", line 268, in _pipfile
    p_section[norm_key] = p_section.pop(key)
  File "/usr/local/lib/python3.6/site-packages/pipenv/patched/prettytoml/elements/table.py", line 114, in pop
    v = self[key]
  File "/usr/local/lib/python3.6/site-packages/pipenv/patched/prettytoml/elements/abstracttable.py", line 58, in __getitem__
    raise KeyError
KeyError

Steps to replicate

Use this Pipfile

[[source]]

verify_ssl = true
url = "https://pypi.python.org/simple"


[requires]

python_version = '3.6'


[packages]

xlrd = "==1.1.0"
xlsxwriter = "==0.9.9"
pip-conflict-checker = "==0.3"
mypy = "==0.530"
pylint = "==1.7.4"
hyperopt = "==0.1"
networkx = "==1.11"
pyyaml = "==3.12"
scipy = "==0.18.1"
scikit-learn = "==0.19.1"


[dev-packages]

tensorflow = "==1.4.0"
matplotlib = "==2.1.1"

Then install mock with: pipenv install mock

[frostming]

@monkut It should be gone in master branch.

[philgyford]

I think it’s this line in my Pipfile that’s causing the problem:

wagtailcomments-xtd = {editable = true,git = "https://github.com/UnfoldStories/wagtailcomments_xtd.git",ref = "wagtail-2-fixes"}

I’ve tried installing that package afresh, doing this:

1. pipenv --rm
2. rm Pipfile.lock
3. Comment out the wagtailcomments-xtd... line from Pipfile
4. pipenv install --dev
5. pipenv install -e git+https://github.com/UnfoldStories/wagtailcomments_xtd.git@wagtail-2-fixes#egg=wagtailcomments_xtd

The last step results in:

Traceback (most recent call last):
  File "/usr/local/Cellar/pipenv/2018.11.26_3/libexec/bin/pipenv", line 8, in <module>
    sys.exit(cli())
  File "/usr/local/Cellar/pipenv/2018.11.26_3/libexec/lib/python3.8/site-packages/pipenv/vendor/click/core.py", line 764, in __call__
    return self.main(*args, **kwargs)
  File "/usr/local/Cellar/pipenv/2018.11.26_3/libexec/lib/python3.8/site-packages/pipenv/vendor/click/core.py", line 717, in main
    rv = self.invoke(ctx)
  File "/usr/local/Cellar/pipenv/2018.11.26_3/libexec/lib/python3.8/site-packages/pipenv/vendor/click/core.py", line 1137, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/usr/local/Cellar/pipenv/2018.11.26_3/libexec/lib/python3.8/site-packages/pipenv/vendor/click/core.py", line 956, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/local/Cellar/pipenv/2018.11.26_3/libexec/lib/python3.8/site-packages/pipenv/vendor/click/core.py", line 555, in invoke
    return callback(*args, **kwargs)
  File "/usr/local/Cellar/pipenv/2018.11.26_3/libexec/lib/python3.8/site-packages/pipenv/vendor/click/decorators.py", line 64, in new_func
    return ctx.invoke(f, obj, *args, **kwargs)
  File "/usr/local/Cellar/pipenv/2018.11.26_3/libexec/lib/python3.8/site-packages/pipenv/vendor/click/core.py", line 555, in invoke
    return callback(*args, **kwargs)
  File "/usr/local/Cellar/pipenv/2018.11.26_3/libexec/lib/python3.8/site-packages/pipenv/vendor/click/decorators.py", line 17, in new_func
    return f(get_current_context(), *args, **kwargs)
  File "/usr/local/Cellar/pipenv/2018.11.26_3/libexec/lib/python3.8/site-packages/pipenv/cli/command.py", line 235, in install
    retcode = do_install(
  File "/usr/local/Cellar/pipenv/2018.11.26_3/libexec/lib/python3.8/site-packages/pipenv/core.py", line 1983, in do_install
    do_init(
  File "/usr/local/Cellar/pipenv/2018.11.26_3/libexec/lib/python3.8/site-packages/pipenv/core.py", line 1216, in do_init
    do_lock(
  File "/usr/local/Cellar/pipenv/2018.11.26_3/libexec/lib/python3.8/site-packages/pipenv/core.py", line 1058, in do_lock
    venv_resolve_deps(
  File "/usr/local/Cellar/pipenv/2018.11.26_3/libexec/lib/python3.8/site-packages/pipenv/utils.py", line 682, in venv_resolve_deps
    lockfile[lockfile_section][k].update(v)
KeyError: 'asgiref'

Neither this project nor that wagtailcomments_xtd repo have changed recently and this – doing pipenv updates – has been working OK for a few months.