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I'm trying to create a virtual environment using pipenv. When I give the command pipenv install, I get the following error

I am using pipenv==2018.6.25

Traceback (most recent call last):
File "c:programdataanaconda3libsite-packagespipenvvendorrequirementslib_compat.py", line 33, in do_import
_tmp = importlib.import_module(internal)
File "c:programdataanaconda3libimportlib__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "", line 994, in _gcd_import
File "", line 971, in _find_and_load
File "", line 953, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'pip._internal.basecommand'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "c:programdataanaconda3librunpy.py", line 193, in _run_module_as_main
"main", mod_spec)
File "c:programdataanaconda3librunpy.py", line 85, in _run_code
exec(code, run_globals)
File "C:ProgramDataAnaconda3Scriptspipenv.exe__main__.py", line 5, in
File "c:programdataanaconda3libsite-packagespipenv__init__.py", line 23, in
from .cli import cli
File "c:programdataanaconda3libsite-packagespipenvcli.py", line 26, in
from .utils import is_valid_url
File "c:programdataanaconda3libsite-packagespipenvutils.py", line 59, in
from .vendor.requirementslib import Requirement
File "c:programdataanaconda3libsite-packagespipenvvendorrequirementslib__init__.py", line 6, in
from .models import Requirement, Lockfile, Pipfile
File "c:programdataanaconda3libsite-packagespipenvvendorrequirementslibmodels__init__.py", line 8, in
from .requirements import Requirement
File "c:programdataanaconda3libsite-packagespipenvvendorrequirementslibmodelsrequirements.py", line 15, in
from .markers import PipenvMarkers
File "c:programdataanaconda3libsite-packagespipenvvendorrequirementslibmodelsmarkers.py", line 6, in
from .utils import validate_markers, filter_none
File "c:programdataanaconda3libsite-packagespipenvvendorrequirementslibmodelsutils.py", line 9, in
from .._compat import Link
File "c:programdataanaconda3libsite-packagespipenvvendorrequirementslib_compat.py", line 55, in
Command = do_import("basecommand", "Command")
File "c:programdataanaconda3libsite-packagespipenvvendorrequirementslib_compat.py", line 35, in do_import
_tmp = importlib.import_module(pip9)
File "c:programdataanaconda3libimportlib__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
ModuleNotFoundError: No module named 'pip.basecommand'

Anybody has any idea how I can correct this error?

I just ran into a similar error during pipenv lock.

After updating pipenv via pip install --user --upgrade pipenv and pip via python -m pip install --upgrade pip the lock command resulted in an error message rather than the traceback.
This error message stated:

There are incompatible versions in the resolved dependencies.

I encountered this issue with pip 18.0 in Mac for virtual environment using pipenv (failing the pipfile.lock creation with this error message: "ModuleNotFoundError: No module named 'pip.basecommand'").
It was solved by pip install --user --upgrade pipenv to update pipenv (to pipenv-2018.11.14.).